Quick Voltage Question for CPU on Water.

Firegod · 28 Dec 2006 at 17:20

Hey,

I'm currently at 2.75Ghz on CPU in Sig. This is being Watercooled by the Zalman Reserator2. My temps at idle hover around 30ºC. This is with ~1.6v.

Can I go any higher, say perhaps 1.7v to try and get 2.8-2.9Ghz? I have been running this speed for a good year or so now, even before I had Watercooling, and it's quite stable.

Thanks for any pointers.

Firegod · 28 Dec 2006 at 18:18

Well with 1.65v she's at 2.8Ghz (A64 3800+ Venice - 2.2Ghz Stock). Just quickly ran Prime95 for half an hour and temps went from 30ºC idle to 46ºC load (fluctuating between 44-46ºC). This was with nTune and MBM logging the temperatures. MBM reported the voltage at just under 1.65v.

After reading what you guys have said I think that'll be the max for me for sure, especially if 1.72v was a suicide run. :eek:

Firegod · 28 Dec 2006 at 20:01

MikeTimbers said:
A suicide run doesn't necessarily mean the chip will die but it means you're doing it for a very short time and it might die.

As for your temps, the reason why it needs to run for several hours at full load is that your water-cooling might keep the temps down for a while but the ability of the cooling to wash away the heat may be overwhelmed over a long period of heat generation.

Thanks, I'll try running it for longer then.

It's hard when I actually need to use the PC. I have no patience.

Firegod · 29 Dec 2006 at 12:56

matt100 said:
what are you measuring your temps with?

They look suspiciously low for a fully loaded passive w/c system. I've put 1.6+ through cpus on high end water/phase and still not been entirely happy with the temps, half of the time because they were unfeasibly low as recorded by dodgy mobo sensors.

Hi there,

I've been using nTune and MBM. I have checked quickly in the BIOS which reports a few degree's higher, but they all report the same figure, give or take 2-3ºC.