4000+, too high of a voltage?

[firebyyrd]

Right now I have my 4000+ clocked to 2.85ghz.

it's using 1.5V.. do you think this will degrade my cpu in the long run with too much voltage? I'm planning on overclocking it to 2.90-2.95ghz, which will most likely need a voltage at 1.55. is that safe?? If my temps remain below 55C at load, does that mean that the cpu won't be hurt at all? I'm not too good at electrical.. so .. could someone help me out and tell me if increase of voltages hurt the cpu, or is it just the temp increases that accompany voltage increases that hurt the cpu.

the temps are fine, loading at 52-53C, and idle temps are 39C: core temp.

 

[996GT2]

Well, I have an AM2 3500+ OC'd to 2.8 GHz right now at 1.344v. Speedfan says 32C idle/39C load, but CoreTemp says 24C idle and 34C load. If I increase HTT to 272 (3 GHz) I need about 1.5V to keep it stable. When I do that, load temps get to around 47C. So I guess your situation isn't that abnormal. Load temps under 55C are pretty acceptable and will not drastically reduce the CPU's life. When they begin to creep well o\ver 60C, though, you might want to think about getting a better heatsink or backing off on your overclock. I noticed that you have an AC Freezer Pro. With the kind of OCing you are doing, I would suggest upgrading to a Thermalright Ultra-120 Extreme or Scythe Ninja. Sure, it runs you a bit of $$, but your load temps can decrease by quite a bit with one of those heatsinks in comparison to the Freezer Pro.

Example:

In AT tests, a 3.73 GHz OC'd Core 2 Extreme runs at 42C load on a Zalman CNPS9500 (similar to the Freezer in performance); the Ultra-120 Extreme manages 33C in the same conditions. I think that you will see a similar benefit, even if not quite as much as AT got.

http://images.anandtech.com/reviews/cooling/2007/noctua-nhu12f/idle-lg.png

 

[Stumps]

I run my Skt 754 A64 3000+ at 2.87ghz using 1.5v, it has run like this for more than a year now and never missed a beat...however, 1.55v would be pushing it a bit.

general rule of thumb is you are safe up to 10% of the original Vcore.

 

[Furen]

Originally posted by: firebyyrd
Right now I have my 4000+ clocked to 2.85ghz.

it's using 1.5V.. do you think this will degrade my cpu in the long run with too much voltage? I'm planning on overclocking it to 2.90-2.95ghz, which will most likely need a voltage at 1.55. is that safe?? If my temps remain below 55C at load, does that mean that the cpu won't be hurt at all? I'm not too good at electrical.. so .. could someone help me out and tell me if increase of voltages hurt the cpu, or is it just the temp increases that accompany voltage increases that hurt the cpu.

the temps are fine, loading at 52-53C, and idle temps are 39C: core temp.

I usually try to stick to +10% of stock voltage, in the case of X2s I usually dont go over 1.45v. Temperature is not the only thing that affects longevity. In fact, the vCore actually affects it much more. You could keep your CPU at subzero temperatures and still have damage due to voltage. If you can get something like 2.8GHz at 1.45ish then I'd suggest sticking to that, getting ~5% more performance (that's what getting to 2.9-3GHz will actually yield) for such a an increase in voltage is not worth it, IMO.

 

[firebyyrd]

ah alright, sounds great!

yea.. you basically answered my question. I'll stick to 2.8ghz.. a 5mhz knock down from the 2.85... should be perfectly stable.

 

[Fraggable]

I thought AMD 64's would range between 1.4 and 1.5 with Cool and Quiet? Whenever I would turn off C&Q to OC I would set it to 1.5 manually.

 

[VirtualLarry]

I'm surprised to hear that you need 1.5v for your 4000+ to reach 2.85Ghz. I was able to OC my 4000+ San Diego to 2.89Ghz with only 1.4v, up from a default of 1.35v. My chip simply wont give me much more than that, no matter if I up the vcore or not.

 

[Ballashoes]

Originally posted by: VirtualLarry
I'm surprised to hear that you need 1.5v for your 4000+ to reach 2.85Ghz. I was able to OC my 4000+ San Diego to 2.89Ghz with only 1.4v, up from a default of 1.35v. My chip simply wont give me much more than that, no matter if I up the vcore or not.

Same here. Im at 2.82 with 1.4v. On air. Temps are 31-33 on idle and 45-50 on load.