Safe voltage to use for 24/7 running

amdandy · 5 Apr 2013 at 15:24

I have been testing for the past couple of days and the lowest voltage I can get stable is 1.29v and the hottest core gets to 72

Jokester · 5 Apr 2013 at 15:29

I had to go from 1.4V (seemingly 24hr Prime stable and would run IBT for hours) to 1.48V to actually get rid of WHEA errors at 4.8GHz.

horrorxpunk · 5 Apr 2013 at 17:24

amdandy said:
Hi guys a quick question, Whats a safe voltage to use for 24/7 running of a 3770k. I have got upto 4.8ghz with a vcore of just under 1.3 with temps of low 70s. I am trying to reach the magic 5ghz and I cant get 4.9 stable without going over 1.3v, any help would be much appreciated

I have to go over 1.5 volts to get 5.1Ghz it takes some incredible extra power to break the 4.9Ghz mark I had to get a new water cooling kit because I was getting upto 90 degrees now I am around 70 degrees at 5.1 Ghz @ 1.524 volts. I also set my voltage to fixed to avoid oscillation.

horrorxpunk · 5 Apr 2013 at 17:41

I have done some benchmark comparisons for you so you can decide if it's worth going for 5Ghz over 4.9Ghz because it takes a massive voltage ramp to push it over that mark, but the difference shown in this test only shows 1.5 FPS difference

@5.1Ghz
http://www.3dmark.com/fs/335629

@4.9Ghz
http://www.3dmark.com/fs/343809

amdandy · 5 Apr 2013 at 19:23

Thanks for the comparison. I think I am just going to stick at 4.8 as I don't really want to go above 1.3 volts and I am happy with the low 70s temperatures

horrorxpunk · 5 Apr 2013 at 19:26

If you get some benchmarks down you will be able to compare your own clocks to those, getting faster RAM would help give the same improvement at less stability cost. Fast ram could make around 1 or 2 fps difference in your physics scores.

illuz · 5 Apr 2013 at 19:54

horrorxpunk said:
I have to go over 1.5 volts to get 5.1Ghz it takes some incredible extra power to break the 4.9Ghz mark I had to get a new water cooling kit because I was getting upto 90 degrees now I am around 70 degrees at 5.1 Ghz @ 1.524 volts. I also set my voltage to fixed to avoid oscillation.

V1.524 for the sake of 5.1GHz, even under water that's a lot of stress on the 22nm process!

@ op, you have an excellent chip! I need v1.360 4.7GHz for 10 pass IBT maximum, temps are 70'c under an Alpenföhn K2 and I Delidded, you should do yours

horrorxpunk · 5 Apr 2013 at 20:46

illuz said:
V1.524 for the sake of 5.1GHz, even under water that's a lot of stress on the 22nm process!

@ op, you have an excellent chip! I need v1.360 4.7GHz for 10 pass IBT maximum, temps are 70'c under an Alpenföhn K2 and I Delidded, you should do yours

Just for benchmarking mostly; I wouldn't usually push it that far if I was just casually gaming. You shouldn't need more than 4.6Ghz with an SLI 680 setup just to make sure your setup runs full blast with no bottlenecks.

amdandy · 5 Apr 2013 at 22:33

I have sli 580 so I wouldn't imagine I would have any problems with bottle necking

Suarez7 · 5 Apr 2013 at 22:36

amdandy said:
I have sli 580 so I wouldn't imagine I would have any problems with bottle necking

When did you buy your CPU? We might have the same batch, I'll test mine at 4.8 with 1.3v

amdandy · 5 Apr 2013 at 22:42

I bought mine on the 15th feb and I am using a custom koolance cooling loop