Intel E5700 voltage question

[snookom]

Hello, is 1.4V too much voltage for my cpu?

This is my configuration:
Processor: Intel Pentium Dual-Core E5700 3.0 GHz
Motherboard: Gigabyte GA-P41T-D3

Stable overclock to 3780MHZ
VCORE: 1.4V
Temp. on both cores is 75C with intel burn test

I would like to clock it to 4GHz, but than I would need voltage close to 1.5V
So I am wondering if that is too much stress on CPU

Intel recomendations:

 

[EarthDog]

VID = stock voltage.

1.4V is fine. I think those are good through 1.45V IIRC. Check out our guide which will confirm that voltage and help you overclock further...: http://www.overclockers.com/forums/...lock-C2Q-(Quads)-and-C2D-(Duals)-A-Guide-v1-1

Also, the core temperature is NOT the Tcase.

That board really isn't made for overclocking honestly. 2+1 phase power with no heatsinks...you are lucky you are running a dual core.

 

[Tech Tweaker]

VID = stock voltage.

1.4V is fine. I think those are good through 1.45V IIRC. Check out our guide which will confirm that voltage and help you overclock further...: http://www.overclockers.com/forums/...lock-C2Q-(Quads)-and-C2D-(Duals)-A-Guide-v1-1

Also, the core temperature is NOT the Tcase.

That board really isn't made for overclocking honestly. 2+1 phase power with no heatsinks...you are lucky you are running a dual core.

+1

Correct, 1.45v is considered the "safe" maximum for 24/7 usage with ambient cooling. Though a good water loop could probably withstand a little more heat and voltage. I definitely wouldn't push that processor to 1.5v, your temperatures are pretty high as it is and more voltage would just introduce more heat into a situation that already has too much.

Yes, I wouldn't overclock on that board either. It's enough for maybe a 95W TDP processor, but with an overclock the CPU would push past that limit pretty quick.

@snookom, I'd recommend buying a better LGA775 motherboard if you look to overclock that processor or any other in that socket type. Don't push your hardware to do things it definitely can't handle, it doesn't end well usually. A 2+1 phase motherboard isn't enough to withstand an overclock, I'd recommend 3+2, 3+3, or 4+2 phase minimum (and 6+2 phase or better if you want to be sure the system is up to the task). I wouldn't overclock on that board and I'm crazy (about overclocking and pushing the boundaries of what my hardware can do), some might say it's an obsession.

What are you using to cool the CPU?

 

[snookom]

Thanks for your replies. I have Cooler Master: Hyper TX3i.
I lowered the overclock to 3.6Ghz and 1.3625V, so the voltage is acording to intels recomendations. Temps are under 70C. I think that this is the safest maximum my configuration can go, I won't push clock any more because it would need more voltage.

 

[EarthDog]

Let me say it again... those are the range of STOCK voltages for the chip. As stated and linked you can go well beyond that value.

 

[Johan45]

Like E_D said you still have headroom, that VID is what many of those CPUs are programmed with to run at stock speed. That's what VID is. I would push it to the 85-90°C range and stop there since most of your use won't push the temp nearly as high as IBT

 

[Tech Tweaker]

Yes, the VID is only the stock voltage the CPU's are meant to run at from the factory. It is not the maximum recommended voltage or the maximum safe voltage. For a 45nm core CPU like that one I wouldn't go above 1.45v (that is the maximum safe voltage for air cooling), if the temperatures are reasonable. And 1.4v is perfectly fine for the CPU as well, it's the motherboard we're more concerned with.

The way I see it you have two issues holding you back, 1. your board isn't really suitable for much of an overclock, 2. a CM Hyper TX3/TX3i isn't a very big cooler and isn't meant for a large heat load like it will encounter with an overclocked processor (even one from the LGA775 platform), so it is struggling to keep up.

Frankly, with that overclocked E5700 you're probably pushing the wattage draw of the processor to 100-130W (or more) pretty easily and surpassing the maximum recommended 95W TDP of the motherboard.

 

[EarthDog]

That's a 65W chip.. I dont think he is breaking 100W... surely not 130W, particularly at his voltage(1.35) and clocks.. now, you get to 1.45V+ and higher clocks... Im there with you. But, I realized I am nitpicking...

 

[wingman99]

I had a Gigabyte EP 45-UD3L 4 phase and I overclock a Q9550 to 4.2GHz just fine. Your 3 phase does not have to support a memory controller like the new boards do, on the GA-P41T-D3 that is a north bridge phase that does that.