GA 6VX7-4 F2

Hi Paul,

Thank you for a detailed reply. I have noticed that you refer to the GA
6VX7 4X AP and my motherboard is a 6VX7 4X F2. Do you know of any
differences between these boards that could affect installation of a 1 Ghz
processor?

Bruce.

"Paul" <nospam.TakeThisOut@needed.com> wrote in message news:fh8ub3$fh8$1@aioe.org...
> Bruce Varney wrote:
>> I wish to fit a Pent' 3 Skt 370 1 Ghz processor type SL52R to a 6VX7-4X
>> F2 Motherboard. The specifications for the M'board says that you can
>> fit this processor but I cannot find any references to the dip switch
>> settings required. At present a Pent' 3 600 Mhx CPU is fitted.
>>
>> Can anyone help please.
>
> I can see manuals over here. And judging by the CPU support table, it
> looks like the voltage regulator handles requests for <1.8V OK.
>
> http://tw.giga-byte.com/Support/Motherboard/BIOS_Model.aspx?ClassValue...therboa
>
> Your 1GHz processor, is FSB133 and 1.75V. Multiplier is locked in the
> processor, which is why the motherboard multiplier setting won't matter.
>
> http://processorfinder.intel.com/Details.aspx?ProcFam=0&sSpec=sl52r&OrdCode=
>
> In the manual, under "CPU Speed Setup", I'd select CPU speed of 133Mhz and
> PCI bus speed of 33MHz. You don't need to change the "Frequency Ratio",
> because
> that is the multiplier I was referring to. The processor will ignore the
> setting on those switches.
>
> I notice that the CPU speed also has an "Auto" setting, with first
> four switches off and second two switches on. When doing so, the two
> BSEL pins on the bottom of the processor (coded by the processor type),
> will send a request for 133MHz operation. So you don't really need to
> force 133/33 with the switches. In other words, there are two possible
> choices for the CPU Speed Setup, either 133/33 or "Auto".
>
> If the person installing the current processor, had already set it
> to "Auto", then in fact you'd just unplug the old processor and
> plug in the new one.
>
> BTW - this is the manual I downloaded, for a quick look:
> http://america.giga-byte.com/FileList/Manual/motherboard_manual_6vx7_4...p_5001_
>
> Once it is running, you can verify a few things with CPUZ. This
> should tell you about clocks etc. If you used "Auto", this program
> will allow you to verify the clock settings the motherboard has used.
> If it didn't do the right thing, this is one way to find out. This
> is a Windows program (just in case you're using Linux).
>
> http://www.cpuid.com/cpuz.php
>
> Paul
 >> Stay informed about: GA 6VX7-4 F2 

Bruce Varney wrote:
> Hi Paul,
>
> Thank you for a detailed reply. I have noticed that you refer to the GA
> 6VX7 4X AP and my motherboard is a 6VX7 4X F2. Do you know of any
> differences between these boards that could affect installation of a 1 Ghz
> processor?
>
> Bruce.
>

I couldn't find "AP", and did the best I could.

Compare the jumpers and features, between the manual I downloaded,
and your board, and see how closely they correlate. Even my motherboard
has the same concept of an "FSB" set of switches, and a "multiplier"
set of switches, and the same rules apply. The "multiplier" doesn't
do anything and can be ignored (for any modern, high speed P3). The
FSB a.k.a CPU clock, is set to match the speed of the processor.

So either "Auto" or explicitly setting the correct speed (66MHz, 100MHz,
133MHz) is what is needed. There can also be options for "in-between"
frequencies, but some of those choices make the PCI bus run outside of
spec. Stick with your 133Mhz or Auto choice for now.

Paul
 >> Stay informed about: GA 6VX7-4 F2 

"Paul" <nospam.DeleteThis@needed.com> wrote in message news:fh9agc$ioc$1@aioe.org...
> Bruce Varney wrote:
>> Hi Paul,
>>
>> Thank you for a detailed reply. I have noticed that you refer to the GA
>> 6VX7 4X AP and my motherboard is a 6VX7 4X F2. Do you know of any
>> differences between these boards that could affect installation of a 1
>> Ghz processor?
>>
>> Bruce.
>>
>
> I couldn't find "AP", and did the best I could.
>
> Compare the jumpers and features, between the manual I downloaded,
> and your board, and see how closely they correlate. Even my motherboard
> has the same concept of an "FSB" set of switches, and a "multiplier"
> set of switches, and the same rules apply. The "multiplier" doesn't
> do anything and can be ignored (for any modern, high speed P3). The
> FSB a.k.a CPU clock, is set to match the speed of the processor.
>
> So either "Auto" or explicitly setting the correct speed (66MHz, 100MHz,
> 133MHz) is what is needed. There can also be options for "in-between"
> frequencies, but some of those choices make the PCI bus run outside of
> spec. Stick with your 133Mhz or Auto choice for now.
>
> Paul

I had a look at the dip switches earlier and they are set for pent 3 800/133
Mhz FSB but the processor installed is a 600/133 Mhz FSB. As soon as I
have installed the 1 Ghz Processor and run it for a short while I will
report back on the progress.

Again, thank you Paul for your response.

Bruce.
 >> Stay informed about: GA 6VX7-4 F2 

> I had a look at the dip switches earlier and they are set for pent 3
> 800/133 Mhz FSB but the processor installed is a 600/133 Mhz FSB. As
> soon as I have installed the 1 Ghz Processor and run it for a short while
> I will report back on the progress.
>
> Again, thank you Paul for your response.
>
> Bruce.
Installed the I Ghz processor today and it lead me a merry dance. I did
set the dip switches as suggested in the manual. Firstly in the boot up
sequence it reports the processor as 900Hz ! Secondly it corrupted XP Pro
so it wouldn't load !

I then tried with a blank disk, installing Win 98SE which loaded and runs
ok. Then tried installing XP Pro firstly as a new installation on a second
partition, kept halting saying drive C was corrupted ! Tried as an upgrade
from Win 98SE to XP Pro same thing. drive C corrupted !

Tomorrow I will put the old processor back in and see what happens.
 >> Stay informed about: GA 6VX7-4 F2 

Bruce Varney wrote:
>> I had a look at the dip switches earlier and they are set for pent 3
>> 800/133 Mhz FSB but the processor installed is a 600/133 Mhz FSB. As
>> soon as I have installed the 1 Ghz Processor and run it for a short while
>> I will report back on the progress.
>>
>> Again, thank you Paul for your response.
>>
>> Bruce.
> Installed the I Ghz processor today and it lead me a merry dance. I did
> set the dip switches as suggested in the manual. Firstly in the boot up
> sequence it reports the processor as 900Hz ! Secondly it corrupted XP Pro
> so it wouldn't load !
>
> I then tried with a blank disk, installing Win 98SE which loaded and runs
> ok. Then tried installing XP Pro firstly as a new installation on a second
> partition, kept halting saying drive C was corrupted ! Tried as an upgrade
> from Win 98SE to XP Pro same thing. drive C corrupted !
>
> Tomorrow I will put the old processor back in and see what happens.
>
>

OK, this is a FAQ for the Asus P2B (440BX) family. There were problems at one point
with multiplier values of 11, 12, and 14. Your multiplier is 1000/133 = 7.5,
so that shouldn't have been a problem.

http://homepage.hispeed.ch/rscheidegger/p2b_procupgrade_faq.html

The fact that you got 900MHz, should have stopped you right in your
tracks. If the multiplier on the processor really is 7.5, then 900/7.5 = 120.
If the input clock was 120, that is an "in-between" value for the clock.
It could be that 120 / 3 = 40Mhz for the PCI clock, which could have
caused your corruption on boot (some clock generators have a 120 / 3
setting and also a 120 / 4, so there are a couple possible outcomes).

The clock generator chip has a data sheet. Your user manual has a table,
but with four active switches at work, there are 16 possible frequency
settings, and your user manual doesn't document all of them.

If the clock generator is an ICS brand device, you can find an ICST.com
datasheet archived on here. I think mine might have been a 9150-08 or
something close to that. There are other brands of clockgen chips, but
these guys have a decent portion of market share. (Read the label on the
chip, to identify it - the user manual seldom mentions the identity of
what they used. Without an actual picture of your board, I cannot give
an exact location for it.)

http://web.archive.org/web/20041205082044/www.icst.com/pdf/

OK, I think I've got it. You user manual mentions "ICS 9248DF-39" in
the block diagram. This is the nearest datasheet. The chip is a 48 pin
device (24 legs per side):

http://web.archive.org/web/20041014095800/www.icst.com/pdf/ics9248-39.pdf

Page 3 has a table. 1111 = 133Mhz. If you flipped all the switch
settings by accident, 0000 = 124MHz, with a PCI bus of 41.33MHz (ouch).
I think in fact, that the readout might have been closer to 930 MHz ?
Just a guess.

Double check your switch settings. I wouldn't let the POST finish and
boot into Windows, until you get the correct "1000" readout at the
beginning of POST. Turn off the power, and try the switches again,
before letting it get near the hard drives.

If you want a good way to test, download Knoppix (knopper.net) or
Ubuntu. The download is 700MB and is in ISO format. You use a CD
burning tool like Nero, and use the ISO to cause a bootable CD
to be burned. I have several different versions that I use
for booting potentially unstable systems. No software is installed
and no hard drive space is needed. In fact, you can disconnect
the hard drive if you want, while booting either of those OSes.
I do overclock testing with Knoppix, because I like watching the
text messages displayed, as stuff on the bus fails etc. You cannot
hurt a CD, like you can a hard drive, which is the nice feature of
booting a Linux LiveCD. (There is probably some minimal amount of
RAM needed to boot them - I have 1GB here, which is why I never
bothered to check the minimum.)

HTH,
Paul
 >> Stay informed about: GA 6VX7-4 F2 

I have checked and double checked the dip switches, I have even operated the
switches quite a few times in case of dirty contacts, still report 900 Mhz.
I then tried setting S1 to 1&2 OFF 3 ON and 4 off and S2 all OFF, hasn't
made a blind bit of difference. I cannot believe that all the switches are
defective in one way or another and since the only thing I have changed is
the processor chip I am starting to think that it is this that is defective.
If I get time today I will put the 600 Mhz CPU back in and see what happens.


"Paul" <nospam.DeleteThis@needed.com> wrote in message news:fhdcrc$uk3$1@aioe.org...
> Bruce Varney wrote:
>>> I had a look at the dip switches earlier and they are set for pent 3
>>> 800/133 Mhz FSB but the processor installed is a 600/133 Mhz FSB. As
>>> soon as I have installed the 1 Ghz Processor and run it for a short
>>> while I will report back on the progress.
>>>
>>> Again, thank you Paul for your response.
>>>
>>> Bruce.
>> Installed the I Ghz processor today and it lead me a merry dance. I did
>> set the dip switches as suggested in the manual. Firstly in the boot up
>> sequence it reports the processor as 900Hz ! Secondly it corrupted XP
>> Pro so it wouldn't load !
>>
>> I then tried with a blank disk, installing Win 98SE which loaded and runs
>> ok. Then tried installing XP Pro firstly as a new installation on a
>> second partition, kept halting saying drive C was corrupted ! Tried as
>> an upgrade from Win 98SE to XP Pro same thing. drive C corrupted !
>>
>> Tomorrow I will put the old processor back in and see what happens.
>
> OK, this is a FAQ for the Asus P2B (440BX) family. There were problems at
> one point
> with multiplier values of 11, 12, and 14. Your multiplier is 1000/133 =
> 7.5,
> so that shouldn't have been a problem.
>
> http://homepage.hispeed.ch/rscheidegger/p2b_procupgrade_faq.html
>
> The fact that you got 900MHz, should have stopped you right in your
> tracks. If the multiplier on the processor really is 7.5, then 900/7.5 =
> 120.
> If the input clock was 120, that is an "in-between" value for the clock.
> It could be that 120 / 3 = 40Mhz for the PCI clock, which could have
> caused your corruption on boot (some clock generators have a 120 / 3
> setting and also a 120 / 4, so there are a couple possible outcomes).
>
> The clock generator chip has a data sheet. Your user manual has a table,
> but with four active switches at work, there are 16 possible frequency
> settings, and your user manual doesn't document all of them.
>
> If the clock generator is an ICS brand device, you can find an ICST.com
> datasheet archived on here. I think mine might have been a 9150-08 or
> something close to that. There are other brands of clockgen chips, but
> these guys have a decent portion of market share. (Read the label on the
> chip, to identify it - the user manual seldom mentions the identity of
> what they used. Without an actual picture of your board, I cannot give
> an exact location for it.)
>
> http://web.archive.org/web/20041205082044/www.icst.com/pdf/
>
> OK, I think I've got it. You user manual mentions "ICS 9248DF-39" in
> the block diagram. This is the nearest datasheet. The chip is a 48 pin
> device (24 legs per side):
>
> http://web.archive.org/web/20041014095800/www.icst.com/pdf/ics9248-39.pdf
>
> Page 3 has a table. 1111 = 133Mhz. If you flipped all the switch
> settings by accident, 0000 = 124MHz, with a PCI bus of 41.33MHz (ouch).
> I think in fact, that the readout might have been closer to 930 MHz ?
> Just a guess.
>
> Double check your switch settings. I wouldn't let the POST finish and
> boot into Windows, until you get the correct "1000" readout at the
> beginning of POST. Turn off the power, and try the switches again,
> before letting it get near the hard drives.
>
> If you want a good way to test, download Knoppix (knopper.net) or
> Ubuntu. The download is 700MB and is in ISO format. You use a CD
> burning tool like Nero, and use the ISO to cause a bootable CD
> to be burned. I have several different versions that I use
> for booting potentially unstable systems. No software is installed
> and no hard drive space is needed. In fact, you can disconnect
> the hard drive if you want, while booting either of those OSes.
> I do overclock testing with Knoppix, because I like watching the
> text messages displayed, as stuff on the bus fails etc. You cannot
> hurt a CD, like you can a hard drive, which is the nice feature of
> booting a Linux LiveCD. (There is probably some minimal amount of
> RAM needed to boot them - I have 1GB here, which is why I never
> bothered to check the minimum.)
>
> HTH,
> Paul
 >> Stay informed about: GA 6VX7-4 F2 

In message <imz_i.15642$ib1.13781@newsfe3-win.ntli.net>, Bruce Varney
<bruce.varney.DeleteThis@ntlworld.com> writes
>I have checked and double checked the dip switches, I have even operated the
>switches quite a few times in case of dirty contacts, still report 900 Mhz.
>I then tried setting S1 to 1&2 OFF 3 ON and 4 off and S2 all OFF, hasn't
>made a blind bit of difference. I cannot believe that all the switches are
>defective in one way or another and since the only thing I have changed is
>the processor chip I am starting to think that it is this that is defective.
>If I get time today I will put the 600 Mhz CPU back in and see what happens.
>
>
Bruce, its always possible that the BIOS simply doesn't understand the
CPU speed settings, and the post is just wrong.

I (still) run a GA-6BXDS board from 1998/9. It's design spec is PII
processors 200-633Mhz. It is fitted with a later pair of P3/1GHz/100
processors. The processors are multiplier locked, and the frequency
ratio dip settings on the board have no effect whatsoever (as you appear
to have discovered!).

The post reports the processors as something like 958Mhz but all the
diagnostics show them running at 1Ghz (actually 998Mhz) . At the time I
seem to remember a discussion on here about the fact that the Bios used
a lookup table that only understood chips up to 958Mhz and it simply
reported the highest number in its list.

It may be that your Bios is in the same position.

Doesn't however solve your C Drive problem.

An alternative thought. What speed memory is fitted. Was the 600Mhz chip
a 600/100 or a 600/133. If it was a 600/100 then you may have some
100Mhz memory fitted. If the Bus speed is set to auto, then the 600/100
would run just fine with 100Mhz memory, but the 1Ghz/133 would have all
sorts of problems.

Try running the board with the bus speed forced to 100Mhz - you will
only get 750Mhz out of the processor, but if that works, then I suspect
you have at least one stick of PC100 memory.

Hope this helps.

Regards
--
Peter R Cook
 >> Stay informed about: GA 6VX7-4 F2 

"Invalid" <news.DeleteThis@wisty.plus.com.invalid> wrote in message
news:8OmzX2C0htOHFwg6@wisty.plus.com...
> In message <imz_i.15642$ib1.13781@newsfe3-win.ntli.net>, Bruce Varney
> <bruce.varney.DeleteThis@ntlworld.com> writes
>>I have checked and double checked the dip switches, I have even operated
>>the
>>switches quite a few times in case of dirty contacts, still report 900
>>Mhz.
>>I then tried setting S1 to 1&2 OFF 3 ON and 4 off and S2 all OFF, hasn't
>>made a blind bit of difference. I cannot believe that all the switches
>>are
>>defective in one way or another and since the only thing I have changed is
>>the processor chip I am starting to think that it is this that is
>>defective.
>>If I get time today I will put the 600 Mhz CPU back in and see what
>>happens.
>>
>>
> Bruce, its always possible that the BIOS simply doesn't understand the CPU
> speed settings, and the post is just wrong.
>
> I (still) run a GA-6BXDS board from 1998/9. It's design spec is PII
> processors 200-633Mhz. It is fitted with a later pair of P3/1GHz/100
> processors. The processors are multiplier locked, and the frequency ratio
> dip settings on the board have no effect whatsoever (as you appear to have
> discovered!).
>
> The post reports the processors as something like 958Mhz but all the
> diagnostics show them running at 1Ghz (actually 998Mhz) . At the time I
> seem to remember a discussion on here about the fact that the Bios used a
> lookup table that only understood chips up to 958Mhz and it simply
> reported the highest number in its list.
>
> It may be that your Bios is in the same position.
>
> Doesn't however solve your C Drive problem.
>
> An alternative thought. What speed memory is fitted. Was the 600Mhz chip a
> 600/100 or a 600/133. If it was a 600/100 then you may have some 100Mhz
> memory fitted. If the Bus speed is set to auto, then the 600/100 would run
> just fine with 100Mhz memory, but the 1Ghz/133 would have all sorts of
> problems.
>
> Try running the board with the bus speed forced to 100Mhz - you will only
> get 750Mhz out of the processor, but if that works, then I suspect you
> have at least one stick of PC100 memory.
>
> Hope this helps.
>
> Regards
> --
> Peter R Cook

Hi Peter,

Thanks for your reply.

I checked the memory sticks, they are 128Mb 133mhz, the 600Mhz CPU is a
100Mhz FSB so I think your idea is a non starter, although it was worth
checking out though.

Bruce..
 >> Stay informed about: GA 6VX7-4 F2 

Bruce Varney wrote:
> "Invalid" <news.DeleteThis@wisty.plus.com.invalid> wrote in message
> news:8OmzX2C0htOHFwg6@wisty.plus.com...
>> In message <imz_i.15642$ib1.13781@newsfe3-win.ntli.net>, Bruce Varney
>> <bruce.varney.DeleteThis@ntlworld.com> writes
>>> I have checked and double checked the dip switches, I have even operated
>>> the
>>> switches quite a few times in case of dirty contacts, still report 900
>>> Mhz.
>>> I then tried setting S1 to 1&2 OFF 3 ON and 4 off and S2 all OFF, hasn't
>>> made a blind bit of difference. I cannot believe that all the switches
>>> are
>>> defective in one way or another and since the only thing I have changed is
>>> the processor chip I am starting to think that it is this that is
>>> defective.
>>> If I get time today I will put the 600 Mhz CPU back in and see what
>>> happens.
>>>
>>>
>> Bruce, its always possible that the BIOS simply doesn't understand the CPU
>> speed settings, and the post is just wrong.
>>
>> I (still) run a GA-6BXDS board from 1998/9. It's design spec is PII
>> processors 200-633Mhz. It is fitted with a later pair of P3/1GHz/100
>> processors. The processors are multiplier locked, and the frequency ratio
>> dip settings on the board have no effect whatsoever (as you appear to have
>> discovered!).
>>
>> The post reports the processors as something like 958Mhz but all the
>> diagnostics show them running at 1Ghz (actually 998Mhz) . At the time I
>> seem to remember a discussion on here about the fact that the Bios used a
>> lookup table that only understood chips up to 958Mhz and it simply
>> reported the highest number in its list.
>>
>> It may be that your Bios is in the same position.
>>
>> Doesn't however solve your C Drive problem.
>>
>> An alternative thought. What speed memory is fitted. Was the 600Mhz chip a
>> 600/100 or a 600/133. If it was a 600/100 then you may have some 100Mhz
>> memory fitted. If the Bus speed is set to auto, then the 600/100 would run
>> just fine with 100Mhz memory, but the 1Ghz/133 would have all sorts of
>> problems.
>>
>> Try running the board with the bus speed forced to 100Mhz - you will only
>> get 750Mhz out of the processor, but if that works, then I suspect you
>> have at least one stick of PC100 memory.
>>
>> Hope this helps.
>>
>> Regards
>> --
>> Peter R Cook
>
> Hi Peter,
>
> Thanks for your reply.
>
> I checked the memory sticks, they are 128Mb 133mhz, the 600Mhz CPU is a
> 100Mhz FSB so I think your idea is a non starter, although it was worth
> checking out though.
>
> Bruce..
>

You have the 9248-39 clock generator datasheet and its table of
FS3-FS2-FS1-FS0 input settings. You should be able to see
similar entries in the motherboard manual for the SW1 and
in the 9248-39 clock generator table of values.

I'd try going back to 100/33 for the FSB and PCI. Then
see if it reads 750MHz or not. If it does, then you know
the multiplier is 7.5.

It could be, that it just isn't stable at 133 for some reason.
You should be able to run three sticks of RAM at PC133.

I'd start by booting up a memtest86+ boot floppy or CD (memtest.org),
and give that a shot, at both 750MHz (FSB100/PC100) and
then at 1000MHz (FSB133/PC133), and see which of those
test conditions are stable.

Paul
 >> Stay informed about: GA 6VX7-4 F2 

OK, this is a FAQ for the Asus P2B (440BX) family. There were problems at
one point
> with multiplier values of 11, 12, and 14. Your multiplier is 1000/133 =
> 7.5,
> so that shouldn't have been a problem.
>
> http://homepage.hispeed.ch/rscheidegger/p2b_procupgrade_faq.html
>
> The fact that you got 900MHz, should have stopped you right in your
> tracks. If the multiplier on the processor really is 7.5, then 900/7.5 =
> 120.
> If the input clock was 120, that is an "in-between" value for the clock.
> It could be that 120 / 3 = 40Mhz for the PCI clock, which could have
> caused your corruption on boot (some clock generators have a 120 / 3
> setting and also a 120 / 4, so there are a couple possible outcomes).
>
> The clock generator chip has a data sheet. Your user manual has a table,
> but with four active switches at work, there are 16 possible frequency
> settings, and your user manual doesn't document all of them.
>
> If the clock generator is an ICS brand device, you can find an ICST.com
> datasheet archived on here. I think mine might have been a 9150-08 or
> something close to that. There are other brands of clockgen chips, but
> these guys have a decent portion of market share. (Read the label on the
> chip, to identify it - the user manual seldom mentions the identity of
> what they used. Without an actual picture of your board, I cannot give
> an exact location for it.)
>
> http://web.archive.org/web/20041205082044/www.icst.com/pdf/
>
> OK, I think I've got it. You user manual mentions "ICS 9248DF-39" in
> the block diagram. This is the nearest datasheet. The chip is a 48 pin
> device (24 legs per side):
>
> http://web.archive.org/web/20041014095800/www.icst.com/pdf/ics9248-39.pdf
>
> Page 3 has a table. 1111 = 133Mhz. If you flipped all the switch
> settings by accident, 0000 = 124MHz, with a PCI bus of 41.33MHz (ouch).
> I think in fact, that the readout might have been closer to 930 MHz ?
> Just a guess.
>
> Double check your switch settings. I wouldn't let the POST finish and
> boot into Windows, until you get the correct "1000" readout at the
> beginning of POST. Turn off the power, and try the switches again,
> before letting it get near the hard drives.
>
> If you want a good way to test, download Knoppix (knopper.net) or
> Ubuntu. The download is 700MB and is in ISO format. You use a CD
> burning tool like Nero, and use the ISO to cause a bootable CD
> to be burned. I have several different versions that I use
> for booting potentially unstable systems. No software is installed
> and no hard drive space is needed. In fact, you can disconnect
> the hard drive if you want, while booting either of those OSes.
> I do overclock testing with Knoppix, because I like watching the
> text messages displayed, as stuff on the bus fails etc. You cannot
> hurt a CD, like you can a hard drive, which is the nice feature of
> booting a Linux LiveCD. (There is probably some minimal amount of
> RAM needed to boot them - I have 1GB here, which is why I never
> bothered to check the minimum.)
>
> HTH,
> Paul

Put the 600Mhz CPU back in and the pc ran fine no corruption of hard drive,
hanging or freezing.

Started again from afresh, took the 600 mhz cpu out, put the Ighz cpu in and
set the dip switches as follows: -
SW1 1 & 2 OFF, 3 ON & 4 OFF.
SW2 1 to 6 ALL OFF.

Checked memory sticks for 133Mhz as suggested by another poster, all 133mhz.

Disconnected hard drive (Scsi)

Switched on, booted up ok except still showing 900Mhz.

Tried to download Knoppix but page unavailable !?!

I shall be away from Thursday through to next Monday so plenty of time for
me to think this over.

Bruce.
 >> Stay informed about: GA 6VX7-4 F2 

"Paul" <nospam.RemoveThis@needed.com> wrote in message news:fhfh13$88u$1@aioe.org...
> Bruce Varney wrote:
>> "Invalid" <news.RemoveThis@wisty.plus.com.invalid> wrote in message
>> news:8OmzX2C0htOHFwg6@wisty.plus.com...
>>> In message <imz_i.15642$ib1.13781@newsfe3-win.ntli.net>, Bruce Varney
>>> <bruce.varney.RemoveThis@ntlworld.com> writes
>>>> I have checked and double checked the dip switches, I have even
>>>> operated the
>>>> switches quite a few times in case of dirty contacts, still report 900
>>>> Mhz.
>>>> I then tried setting S1 to 1&2 OFF 3 ON and 4 off and S2 all OFF,
>>>> hasn't
>>>> made a blind bit of difference. I cannot believe that all the
>>>> switches are
>>>> defective in one way or another and since the only thing I have changed
>>>> is
>>>> the processor chip I am starting to think that it is this that is
>>>> defective.
>>>> If I get time today I will put the 600 Mhz CPU back in and see what
>>>> happens.
>>>>
>>>>
>>> Bruce, its always possible that the BIOS simply doesn't understand the
>>> CPU speed settings, and the post is just wrong.
>>>
>>> I (still) run a GA-6BXDS board from 1998/9. It's design spec is PII
>>> processors 200-633Mhz. It is fitted with a later pair of P3/1GHz/100
>>> processors. The processors are multiplier locked, and the frequency
>>> ratio dip settings on the board have no effect whatsoever (as you appear
>>> to have discovered!).
>>>
>>> The post reports the processors as something like 958Mhz but all the
>>> diagnostics show them running at 1Ghz (actually 998Mhz) . At the time I
>>> seem to remember a discussion on here about the fact that the Bios used
>>> a lookup table that only understood chips up to 958Mhz and it simply
>>> reported the highest number in its list.
>>>
>>> It may be that your Bios is in the same position.
>>>
>>> Doesn't however solve your C Drive problem.
>>>
>>> An alternative thought. What speed memory is fitted. Was the 600Mhz chip
>>> a 600/100 or a 600/133. If it was a 600/100 then you may have some
>>> 100Mhz memory fitted. If the Bus speed is set to auto, then the 600/100
>>> would run just fine with 100Mhz memory, but the 1Ghz/133 would have all
>>> sorts of problems.
>>>
>>> Try running the board with the bus speed forced to 100Mhz - you will
>>> only get 750Mhz out of the processor, but if that works, then I suspect
>>> you have at least one stick of PC100 memory.
>>>
>>> Hope this helps.
>>>
>>> Regards
>>> --
>>> Peter R Cook
>>
>> Hi Peter,
>>
>> Thanks for your reply.
>>
>> I checked the memory sticks, they are 128Mb 133mhz, the 600Mhz CPU is a
>> 100Mhz FSB so I think your idea is a non starter, although it was worth
>> checking out though.
>>
>> Bruce..
>>
>
> You have the 9248-39 clock generator datasheet and its table of
> FS3-FS2-FS1-FS0 input settings. You should be able to see
> similar entries in the motherboard manual for the SW1 and
> in the 9248-39 clock generator table of values.
>
> I'd try going back to 100/33 for the FSB and PCI. Then
> see if it reads 750MHz or not. If it does, then you know
> the multiplier is 7.5.
>
> It could be, that it just isn't stable at 133 for some reason.
> You should be able to run three sticks of RAM at PC133.
>
> I'd start by booting up a memtest86+ boot floppy or CD (memtest.org),
> and give that a shot, at both 750MHz (FSB100/PC100) and
> then at 1000MHz (FSB133/PC133), and see which of those
> test conditions are stable.
>
> Paul

I have run the PC with the CPU set for 750Mhz and ran the memtest program
for 24 hours with no errors occurring. It is now running at 1Ghz and
running the memtest program again for 24 hours.

What is the latest Bios version for the GA 6VX7-4 F2 Motherboard?
 >> Stay informed about: GA 6VX7-4 F2 

Bruce Varney wrote:

>> "Paul" <nospam.RemoveThis@needed.com> wrote in message news:fhfh13$88u$1@aioe.org...
>> You have the 9248-39 clock generator datasheet and its table of
>> FS3-FS2-FS1-FS0 input settings. You should be able to see
>> similar entries in the motherboard manual for the SW1 and
>> in the 9248-39 clock generator table of values.
>>
>> I'd try going back to 100/33 for the FSB and PCI. Then
>> see if it reads 750MHz or not. If it does, then you know
>> the multiplier is 7.5.
>>
>> It could be, that it just isn't stable at 133 for some reason.
>> You should be able to run three sticks of RAM at PC133.
>>
>> I'd start by booting up a memtest86+ boot floppy or CD (memtest.org),
>> and give that a shot, at both 750MHz (FSB100/PC100) and
>> then at 1000MHz (FSB133/PC133), and see which of those
>> test conditions are stable.
>>
>> Paul
>
> I have run the PC with the CPU set for 750Mhz and ran the memtest program
> for 24 hours with no errors occurring. It is now running at 1Ghz and
> running the memtest program again for 24 hours.
>
> What is the latest Bios version for the GA 6VX7-4 F2 Motherboard?

F4 is listed here, from 2003/10/07:

http://tw.giga-byte.com/Support/Motherboard/BIOS_Model.aspx?ClassValue...therboa

Paul
 >> Stay informed about: GA 6VX7-4 F2 

"Paul" <nospam DeleteThis @needed.com> wrote in message news:fhsjpc$uei$1@aioe.org...
> Bruce Varney wrote:
>
>>> "Paul" <nospam DeleteThis @needed.com> wrote in message
>>> news:fhfh13$88u$1@aioe.org...
>>> You have the 9248-39 clock generator datasheet and its table of
>>> FS3-FS2-FS1-FS0 input settings. You should be able to see
>>> similar entries in the motherboard manual for the SW1 and
>>> in the 9248-39 clock generator table of values.
>>>
>>> I'd try going back to 100/33 for the FSB and PCI. Then
>>> see if it reads 750MHz or not. If it does, then you know
>>> the multiplier is 7.5.
>>>
>>> It could be, that it just isn't stable at 133 for some reason.
>>> You should be able to run three sticks of RAM at PC133.
>>>
>>> I'd start by booting up a memtest86+ boot floppy or CD (memtest.org),
>>> and give that a shot, at both 750MHz (FSB100/PC100) and
>>> then at 1000MHz (FSB133/PC133), and see which of those
>>> test conditions are stable.
>>>
>>> Paul
>>
>> I have run the PC with the CPU set for 750Mhz and ran the memtest program
>> for 24 hours with no errors occurring. It is now running at 1Ghz and
>> running the memtest program again for 24 hours.
>>
>> What is the latest Bios version for the GA 6VX7-4 F2 Motherboard?
>
> F4 is listed here, from 2003/10/07:
>
> http://tw.giga-byte.com/Support/Motherboard/BIOS_Model.aspx?ClassValue...therboa
>
> Paul


F4 is for GA 6VX7-4X AP Motherboard, if I run this bios update I get BIOS ID
ERROR. I have also tried Bios F45 with the same results.
 >> Stay informed about: GA 6VX7-4 F2