Volts for Corsair Ram

Kalpsn2000 · 22 May 2008 at 15:20

Hi guys

I have the Corsair 4GB DDR2 XMS2 PC2-6400C5 TwinX (2x2GB)

http://www.overclockers.co.uk/showproduct.php?prodid=MY-136-CS&groupid=701&catid=8&subcat=813

What's the max volts I could put through them?

On overclockers it lists them as 1.8-1.9v while the 2GB kits are listed as 1.8-2.2v.

I would have thought both of them would be rated at 1.8-2.2v :confused:

Thanks

EVILCOSMOS · 22 May 2008 at 16:05

In the corsair forum RAMGUY recommends up to 2.0v

Greebo · 22 May 2008 at 16:10

Does it not say on the documentation? On my Corsairs (2x 2Gb) albeit the DHX ones, it says 1.8v to run at 266 and 2.1v for 400Mhz.

Also check cpu-z. On mine it lists the memory speeds, timings and voltages for each. I notice Corsair website says "JEDEC standard latency settings
(5-5-5-18) at 1.9V" so i'm guessing that will be at 400Mhz.

In theory I'm sure they will be the same chips inside so should be safe for 2.1v however, the DHX have better heatsinks which might mean they can cope with 2.1v when yours can't.

Kalpsn2000 · 22 May 2008 at 22:20

For me on cpu-z it gives me the memory speeds, timings but not the voltages.

I have it set to 2.0v at the moment at 400Mhz but can't get the timings down.

I'll give it another go at some point but the timings are set to auto at the moment, as it doesn't boot when I reduce the timings.

Phil2008 · 24 May 2008 at 23:11

Ive got them set at 1.9v tho, cos thats what the volts say on the sticks

Kalpsn2000 · 25 May 2008 at 03:16

I tried again and set the timings to 5-5-5-18 in the bios and it boots up but cpu-z reports them as 33-6-2-18 :confused:

Any ideas?

Yellowbeard · 28 May 2008 at 19:57

Clear the CMOS and try it with 1 module.

Kalpsn2000 · 28 May 2008 at 20:12

I tried using memset and the correct settings appear when its open also the DC mode changes to symmetric.

But as soon as i close memset it reverts back to the high timings and DC mode asymmetric. :confused:

Yellowbeard · 28 May 2008 at 20:50

It could simply be a CPU-Z error. Check it with some other utility like Everest or Sandra.

Kalpsn2000 · 30 May 2008 at 00:07

Yellowbeard said:
It could simply be a CPU-Z error. Check it with some other utility like Everest or Sandra.

I checked everest and it also had the timings as 33-6-2-18 :confused:

DrSteve · 5 Jun 2008 at 22:52

I have these same sticks running at the default 1.9v and 5-5-5-18. I'm starting to take my FSB over 400 with the memory 1:1 and was wondering how far these are likely to go at the default timings. Cooling shouldn't be too much of a problem as there's a 120mm fan blowing straight on to them so I'm sure upping the vdimm a bit would be ok.
Thanks for any info.

Cob · 5 Jun 2008 at 23:14