Can I run this OC 24/7?

[nomagic]

Hello all,

This is the first time that I try to overclock aggressively. I had been up to this point a mild overclocker, but this time I will try to be little more hardcore: e4500 m0 @ 3.4GHz

The room temperature was 23'C. Delta to TJmax was 50'C (idle) ~ 12'C (running OCCT). Since TJmax is anybody's guess, I used 85'C. The lastest versions of real temp, coretemp and speedfan all use TJmax = 85'C. Therefore, the calculated temperature would be 35'C (idle) ~ 73'C (running OCCT).

The Vcore was set to 1.5750V in BIOS. cpuz shows Vcore to be 1.536V (idle) ~ 1.464 (running OCCT). The setup was OCCT stable, but I will run more stability tests later.

I will soon upgrade my GPU to 9600GT. I hope my PSU is powerful enough.

I plan to run this setup as shown above 24/7. Is my CPU very likely to die within 1 year? Please enlighten me with your comments.

Screenshot

Edited: Added pictures.

 

[Rubycon]

What heatsink are you using? Those temps are very warm for a dual core cpu.

 

[nomagic]

Thanks for the comment.

I use Cooler Master Hyper 212 HSF.

Is the temperature too high? What other HSF would you suggest?

 

[Rubycon]

That HSF should be fine for a dual. Perhaps it needs to be remounted? Those temps are more of quad territory given the vcore and speed.

 

[nomagic]

I tried to remount it several times. (~4 or 5) I used AC5 and followed the instruction on the manual.

BTW, remounting Hyper212 is a PITA. I have to remove the MB from the case every time I remount it.

 

[badnewcastle]

Get an nVidia 8800GT, if your lucky it will be like mine and it will auto shutdown because of heat... this happens before my cpu goes above 63c.

 

[Denithor]

You're running Vcore of 1.575 on air cooling? That's probably too high for long-term use. Does the system remain stable with lower volts? Crank down the volts until you start to see instability and see what it does for your temperatures.

 

[nomagic]

Update and Bump!

First of all, thanks for all your inputs!

I was only able to get 3.4GHZ OCCT stable @1.575V and no lower, and the core temperature was on the high end. After reading the much-appreciated replies, I decided to step down to 3.19Ghz @ 1.45V. Now the temp under load never exceeds 65'C. In addition, I was able to turn down fan rpms and noises. The new results made me a happy man.

But I still have a few questions. Please educate me.

1. When forum members report their Vcore, do they report value set in BIOS or cpuz reading? I noticed that when I set Vcore to 1.45 in BIOS, cpuz would report something lower. When underload, the reported Vcore will drop further. (Vdroop?)

2. For C2Ds, Is it better to run ram and FSB 1:1?

I chose not to run 1:1 but 4:5 because at lower FSB, I can choose a lower FSB strap. (266 strap instead of 333 strap) In addition, I adjusted my ram timing from 5-5-5-15 to 4-4-4-12. However, in exchange, I had to give up running ram and FSB synchronously. I guess it would be a fine trade-off.

 

[aigomorla]

Vcore values thats reported by cpu-z. it means the voltage being fed @ core.

Otherwise you just use V which is voltage in bios.

and i also think your voltage is a bit too high. However im not 100% how long last. The allendale can sure take one hell of a beating.

 

[nomagic]

I used Intel's processor spec finding and found that the VID voltage range for e4500 m0 to be 0.85V ? 1.5V (mine was 1.3250V). 1.401V is in the upper end of the range. I guess it may be a little high, but I just want it to live for an year before i switch to quad core.