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Next: AA8XE vs AA8-duramax mobos
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External
Since: Oct 01, 2004
Posts: 867
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(Msg. 1) Posted: Mon Apr 25, 2005 5:55 pm
Post subject: Intel dual-core/single-core motherboard compatibility ?
Archived from groups: alt>comp>periphs>mainboard>abit (more info?)
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In order to run the Intel dual-core processors, a motherboard design
compatible with these processors is required. The present generation
of 775-pin single core motherboard will not work.
However, it is not clear to me from anything that I have read which,
if any of this new generation of dual-core Intel motherboard will be
backward compatible with any current single-core/HT 775-pin processor.
This may be important for those building a new system who want to
future-proof for dual-core at the same time as upgrading to PCie/SLI
etc, etc but do not want the current speed/power/cost/
unknown-application-bug penalties of having to initially use a
dual-core processor.
Also, for the hobbyist system builder it would be very nice to be able
to check out the complete functionality (other than dual-core) of a
new dual core/PCIe, etc -system with a single-core processor borrowed
from a previous build.
So, what is the detailed scoop with regard to the dual/single-core
backward compatibility of the various Intel-compatible dual-core
chipsets (Intel, nF4, Via etc) and motherboards ? Richard, Tom,
others ? Or point me to an authorative document on the subject.
John Lewis |
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External
Since: Nov 18, 2003
Posts: 1356
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(Msg. 2) Posted: Mon Apr 25, 2005 7:47 pm
Post subject: Re: Intel dual-core/single-core motherboard compatibility ? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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I know nothing! (said with my best Shultz accent from Hogan's Heroes)
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Network+ certified
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over 130,000 FTP users served!
^^^^^^^
"John Lewis" <john.dsl.RemoveThis@verizon.net> wrote in message
news:426d5402.1400104@news.verizon.net...
> In order to run the Intel dual-core processors, a motherboard design
> compatible with these processors is required. The present generation
> of 775-pin single core motherboard will not work.
>
> However, it is not clear to me from anything that I have read which,
> if any of this new generation of dual-core Intel motherboard will be
> backward compatible with any current single-core/HT 775-pin processor.
> This may be important for those building a new system who want to
> future-proof for dual-core at the same time as upgrading to PCie/SLI
> etc, etc but do not want the current speed/power/cost/
> unknown-application-bug penalties of having to initially use a
> dual-core processor.
>
> Also, for the hobbyist system builder it would be very nice to be able
> to check out the complete functionality (other than dual-core) of a
> new dual core/PCIe, etc -system with a single-core processor borrowed
> from a previous build.
>
> So, what is the detailed scoop with regard to the dual/single-core
> backward compatibility of the various Intel-compatible dual-core
> chipsets (Intel, nF4, Via etc) and motherboards ? Richard, Tom,
> others ? Or point me to an authorative document on the subject.
>
> John Lewis
>
>
><!-- ~MESSAGE_AFTER~ --> |
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External
Since: Sep 15, 2004
Posts: 714
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(Msg. 3) Posted: Mon Apr 25, 2005 10:53 pm
Post subject: Re: Intel dual-core/single-core motherboard compatibility ? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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External
Since: Sep 06, 2003
Posts: 45
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(Msg. 4) Posted: Mon Apr 25, 2005 11:31 pm
Post subject: Re: Intel dual-core/single-core motherboard compatibility ? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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External
Since: Oct 01, 2004
Posts: 867
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(Msg. 5) Posted: Tue Apr 26, 2005 1:47 am
Post subject: Re: Intel dual-core/single-core motherboard compatibility ? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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On Mon, 25 Apr 2005 23:31:51 +0200, "Gilles Vollant"
<info.RemoveThis@winimage.com> wrote:
>It seem motherboard base on NVIDIA nForce4 and Intel 955X chipset will be
>compatible.
>
Compatible with Pentium D/Pentium Extreme dual-core, if
course..........
But also ("backward") PLUG-COMPATIBLE with the current
Prescott single-core ( +HT) 775-pin Pentium 4 (Series 5xx) ??
( A la the latest generation of AMD 939-pin motherboards....with
appropriate BIOS updates ) That is my $64 question. Please
point me to the relevant documentation.
For example, from some information that I read on the MSI Intel
nForce4 motherboard, it seems compatible only with "05A, 05B"
processors, which I believe are only the dual-core Pentium D,
and Pentium (Dual-core+HT) Extreme.
Richard, etc.... please help sort out the truth from the chaff....
Life in 939-pin single/dual-core AMD-land seems so simple
compared to this ball of twine Intel has thrown at us.
John Lewis
>Somes motherboard are already on store, or will be soon.
>
><!-- ~MESSAGE_AFTER~ --> >> Stay informed about: Intel dual-core/single-core motherboard compatibility ? |
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External
Since: Jan 11, 2005
Posts: 394
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(Msg. 6) Posted: Tue Apr 26, 2005 5:20 am
Post subject: Re: Intel dual-core/single-core motherboard compatibility ? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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The dual capable boards and chipsets will, according to my current info, be
fully backwards compatible with the existing and forthcoming single-core
LGA775 product range. Intel have certainly designed this into the 945 and
955 chipsets, and it's logical to assume that the other manufacturers will
too.
Don't forget that the arrival of the dual core products doesn't herald the
death of the single core part, far from it. Indeed, Intel's forthcoming 65nm
Prescott die-shrink (Cedar Mill) looks like the design Prescott needed to be
(and should have been).
--
Richard Hopkins
Cardiff, Wales, United Kingdom
(replace nospam with pipex in reply address)
The UK's leading technology reseller www.dabs.com >> Stay informed about: Intel dual-core/single-core motherboard compatibility ? |
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External
Since: Oct 01, 2004
Posts: 867
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(Msg. 7) Posted: Tue Apr 26, 2005 6:33 pm
Post subject: Re: Intel dual-core/single-core motherboard compatibility ? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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On Tue, 26 Apr 2005 05:20:43 +0100, "Richard Hopkins"
<richh.RemoveThis@dsl.nospam.com> wrote:
>The dual capable boards and chipsets will, according to my current info, be
>fully backwards compatible with the existing and forthcoming single-core
>LGA775 product range. Intel have certainly designed this into the 945 and
>955 chipsets, and it's logical to assume that the other manufacturers will
>too.
>
Thanks, Richard.
Can you please clarify ( or point to the relevant Intel document) the
meaning of "05A", "05B", "04A", "04B" etc with regard to the Intel
processors ?
Regards,
John L.
>Don't forget that the arrival of the dual core products doesn't herald the
>death of the single core part, far from it. Indeed, Intel's forthcoming 65nm
>Prescott die-shrink (Cedar Mill) looks like the design Prescott needed to be
>(and should have been).
>--
>
>
>Richard Hopkins
>Cardiff, Wales, United Kingdom
>(replace nospam with pipex in reply address)
>
<font color=purple> >The UK's leading technology reseller <a style='text-decoration: underline;' href="http://www.dabs.com</font" target="_blank">www.dabs.com</font</a>>
>
><!-- ~MESSAGE_AFTER~ --> >> Stay informed about: Intel dual-core/single-core motherboard compatibility ? |
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External
Since: Jan 11, 2005
Posts: 394
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(Msg. 8) Posted: Tue Apr 26, 2005 11:08 pm
Post subject: Re: Intel dual-core/single-core motherboard compatibility ? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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"John Lewis" ...
> Thanks, Richard.
No worries.
> Can you please clarify ( or point to the relevant Intel document) the
> meaning of "05A", "05B", "04A", "04B" etc with regard to the Intel
> processors ?
Yeah, this number is the PCG (Platform Compatibility Guide). It's supposed
to be a rough indication of the CPU's thermal design power and heat
dissipation level, with the idea being that motherboard PWM sections and
heatsinks are also eventually supposed to be rated with these guidelines in
mind.
IIRC the 04A equates to a maximum TDP of 84W, 04B 85-115W, 05A 116-130W, and
05B 131-145W. Don't quote me on the latter two though.
--
Richard Hopkins
Cardiff, Wales, United Kingdom
(replace nospam with pipex in reply address)
The UK's leading technology reseller <a style='text-decoration: underline;' href="http://www.dabs.com" target="_blank">www.dabs.com</a><!-- ~MESSAGE_AFTER~ --> >> Stay informed about: Intel dual-core/single-core motherboard compatibility ? |
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Since: Oct 01, 2004
Posts: 867
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(Msg. 9) Posted: Wed Apr 27, 2005 7:32 am
Post subject: Re: Intel dual-core/single-core motherboard compatibility ? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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On Tue, 26 Apr 2005 23:08:01 +0100, "Richard Hopkins"
<richh RemoveThis @dsl.nospam.com> wrote:
>"John Lewis" ...
>> Thanks, Richard.
>
>No worries.
>
>> Can you please clarify ( or point to the relevant Intel document) the
>> meaning of "05A", "05B", "04A", "04B" etc with regard to the Intel
>> processors ?
>
>Yeah, this number is the PCG (Platform Compatibility Guide). It's supposed
>to be a rough indication of the CPU's thermal design power and heat
>dissipation level, with the idea being that motherboard PWM sections and
>heatsinks are also eventually supposed to be rated with these guidelines in
>mind.
>
>IIRC the 04A equates to a maximum TDP of 84W, 04B 85-115W, 05A 116-130W, and
>05B 131-145W. Don't quote me on the latter two though.
>--
Thanks again.
Can I then assume that these PCG symbols have no further functional
implication in terms of the MB design, CPU pin-out etc other than
power and thermal ?
John Lewis
>
>
>Richard Hopkins
>Cardiff, Wales, United Kingdom
>(replace nospam with pipex in reply address)
>
<font color=purple> >The UK's leading technology reseller <a style='text-decoration: underline;' href="http://www.dabs.com</font" target="_blank">www.dabs.com</font</a>>
>
><!-- ~MESSAGE_AFTER~ --> >> Stay informed about: Intel dual-core/single-core motherboard compatibility ? |
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External
Since: Jan 11, 2005
Posts: 394
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(Msg. 10) Posted: Wed Apr 27, 2005 12:55 pm
Post subject: Re: Intel dual-core/single-core motherboard compatibility ? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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"John Lewis" <john.dsl.DeleteThis@verizon.net> wrote in message
news:426f36f7.8032941@news.verizon.net...
> Can I then assume that these PCG symbols have no further
> functional implication in terms of the MB design, CPU pin-out
> etc other than power and thermal ?
Correct, at least in the way they're currently implementing it. It's an
extension of their old "FMB" nomenclature, which merely specified the
electrical performance of the motherboard's CPU power supply section.
I guess that in the long term the idea is that if you buy an 05A rated CPU,
you pick up a motherboard and cooler also rated 05A and higher, and you know
everything's going to be dandy. Sounds fine in principle, but something
tells me it's going to be largely irrelevant in practice.
--
Richard Hopkins
Cardiff, Wales, United Kingdom
(replace nospam with pipex in reply address)
The UK's leading technology reseller <a style='text-decoration: underline;' href="http://www.dabs.com" target="_blank">www.dabs.com</a><!-- ~MESSAGE_AFTER~ --> >> Stay informed about: Intel dual-core/single-core motherboard compatibility ? |
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