how much can I up the voltage on my corsair ram

External Since: Jun 29, 2004 Posts: 8

Here are my specs:

p4c 2.8 Ghz
1gig corsair DDR400 (dual channel kit) CAS Lat 2.
Abit Is7 Mobo
Radeon X800 pro

now previously I had this pc overclocked to 3.2 ghz with 512 meg of Geil
ram. but the geil ram was running at 5:4 cpu:RAM FSB ratio. the system was
nice and stable, but with a FSB of around 225, I was actually underclocking
my ram.

now that I have this Corsair ram, it will run at a 1:1 ratio with the cpu.
but it's not stable.

so, my question is, which of the following are my best options:

1. run my p4 @ 3.2ghz and use a 5:4 cpu to ram ratio, effectively
underclocking the ram

2. reduce my p4 speed to around 3ghz, and run the ram at 1:1

3. up the voltage on my ram to attempt to get it stable. at the moment I
have the voltage set to factory defaults. and if this is a good option, how
much should I raise by to be good and safe?

External Since: Jan 03, 2004 Posts: 7693

On Tue, 28 Sep 2004 17:05:16 +1000, "Paul" <paul RemoveThis @gooboo.com>
wrote:

>Here are my specs:
>
> p4c 2.8 Ghz
>1gig corsair DDR400 (dual channel kit) CAS Lat 2.
>Abit Is7 Mobo
>Radeon X800 pro
>
>now previously I had this pc overclocked to 3.2 ghz with 512 meg of Geil
>ram. but the geil ram was running at 5:4 cpu:RAM FSB ratio. the system was
>nice and stable, but with a FSB of around 225, I was actually underclocking
>my ram.
>
>now that I have this Corsair ram, it will run at a 1:1 ratio with the cpu.
>but it's not stable.
>
>so, my question is, which of the following are my best options:
>
>1. run my p4 @ 3.2ghz and use a 5:4 cpu to ram ratio, effectively
>underclocking the ram
>
>2. reduce my p4 speed to around 3ghz, and run the ram at 1:1
>
>3. up the voltage on my ram to attempt to get it stable. at the moment I
>have the voltage set to factory defaults. and if this is a good option, how
>much should I raise by to be good and safe?
>
>

What is the actual value set from "factory defaults"?
That is pretty central to the question. If it's 2.5,
certainly the voltage should be rasied as first attempt, but
probably not above 2.8 (at your own risk of course).

What voltage options does the board allow?

Try 2.7

Frankly I'd raise (relax) the memory timings before lowering
FSB that much, and see if that'll get it at 225FSB with 1:1.

However, you can benchmark this yourself to determine best
performance for your particular app(s) of interest, and this
isn't an overclocking newsgroup... you might find more help
in appropriate group.