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need help reducing voltage

post #1 of 11
Thread Starter 
Hey, I've got my Intel C2D E6420 overclocked to 3.2GHz stable. The only problem is my vcore is 1.52, much too high. Could you guys give me some advice on lowing that vcore while keeping my system stable?

Icefoam
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Icefoam
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post #2 of 11
If you can't get it stable below that voltage, chances are it won't be stable below that voltage. Have you tried bumping up the northbridge voltage a bit? Also can you go any further at 1.52v - e.g 3.4ghz. Its not really too high but is quite high.
post #3 of 11
Thread Starter 
I don't think I can go any further at this voltage. I ran Orthos for 1 hour before it crashed at a voltage one click lower than what its at now so I figure that if I push the frequency any further it will become unstable again.
I'm not worried about my temps b/c those are in the safe range still. However, I wonder if your processor can get damaged from sending too much voltage through it, even if you keep it cool?
Icefoam
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Icefoam
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post #4 of 11
Quote:
Originally Posted by acracker View Post
I don't think I can go any further at this voltage. I ran Orthos for 1 hour before it crashed at a voltage one click lower than what its at now so I figure that if I push the frequency any further it will become unstable again.
I'm not worried about my temps b/c those are in the safe range still. However, I wonder if your processor can get damaged from sending too much voltage through it, even if you keep it cool?
There is a point when so much voltage can cause damage. There are lots of members on here running at 1.52v so I would think that in the short term it is probably fine. Even if it cuts lifespan in half thats still at least 5 years that the processor is good for, and by then you will have upgraded alot. Did upping your northbridge voltage help or no?
post #5 of 11
What do you have your vCore set to in BIOS?
    
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post #6 of 11
Thread Starter 
No, upping the northbridge voltage from 1.5 to 1.55 volts didn't make a difference. Thats good to know though that even overclocking a cpu will only reduce its lifespan to 5 years. I can easily see myself with a new computer by then.

My vCore in my BIOS is set to 1.5562 ATM. Anything lower than that and Orthos flips after less than a minute.
Icefoam
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Icefoam
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post #7 of 11
Quote:
Originally Posted by acracker View Post
No, upping the northbridge voltage from 1.5 to 1.55 volts didn't make a difference. Thats good to know though that even overclocking a cpu will only reduce its lifespan to 5 years. I can easily see myself with a new computer by then.

My vCore in my BIOS is set to 1.5562 ATM. Anything lower than that and Orthos flips after less than a minute.
Can you manage say 3.0ghz on much lower voltage? 200mhz probably isn't worth running that high voltage. The thing is with saying if voltage affects lifespan - Nobody knows as that point in time hasn't been reached yet . We can only know for sure by finding out.
post #8 of 11
Thread Starter 
Quote:
Originally Posted by coffeejunky View Post
Can you manage say 3.0ghz on much lower voltage?
Possibly. I had it running at 3.04GHz on 1.5V but I didn't stop to test at a lower voltage b/c I had 3.2GHz in sight at the moment. I'll test it out tonight at 3.0GHz and post back with the results.

I do have a question though. How did you overclock your E2180 so far and still keep the voltage low? That is impressive.
Icefoam
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500 GB, 200 GB, 1TB Windows Vista Business 64 20" wide Acer flatpanel Logitech MX5000 BT 
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Icefoam
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Hard DriveOSMonitorKeyboard
500 GB, 200 GB, 1TB Windows Vista Business 64 20" wide Acer flatpanel Logitech MX5000 BT 
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post #9 of 11
The 2180 has a crazy high multiplier, and so doesn't need as a high an external frequency to reach that clock speed. Don't worry--you have a lot more L2 cache than he does on your chip, and will outperform it on a clock/clock basis.

And my e6400 has survived nearly a year at 1.55v, and half a year at 1.45v before that. Unfortunately my P5N-E's haven't survived it as well... switching to a DFI P35 board now, hopefully I won't need as much vcore to keep this clock speed. I'll report back when my chip finally kicks the bucket
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post #10 of 11
Quote:
Originally Posted by acracker View Post
Possibly. I had it running at 3.04GHz on 1.5V but I didn't stop to test at a lower voltage b/c I had 3.2GHz in sight at the moment. I'll test it out tonight at 3.0GHz and post back with the results.

I do have a question though. How did you overclock your E2180 so far and still keep the voltage low? That is impressive.
Its just luck really. Some have gone higher with less voltage. It seems you have got a very bad chip (overclocking wise). My processor is also a bad chip - It is from a bad batch where the IHS is not in good contact with the core. My temps run ridiculously high, even with a lapped Big Typhoon my load temps are 75*C. I don't worry about its temperature because theres nothing I can do about it (although I have a CPU lap planned - maybe even a de-lidding). I must've used 1.5 tubes of AS5 in remounts and my temps don't change. Anyway, let us know how you get on .

Quote:
The 2180 has a crazy high multiplier, and so doesn't need as a high an external frequency to reach that clock speed. Don't worry--you have a lot more L2 cache than he does on your chip, and will outperform it on a clock/clock basis.

And my e6400 has survived nearly a year at 1.55v, and half a year at 1.45v before that. Unfortunately my P5N-E's haven't survived it as well... switching to a DFI P35 board now, hopefully I won't need as much vcore to keep this clock speed. I'll report back when my chip finally kicks the bucket
True, however, if you're lucky when the chip kicks the bucket you may be alot older and the internet as we know it may be a distant memory.
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