Voltage? 1.95, 1.90, 1.80 (700 -socket 370)

Ficcion

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Aug 24, 2000
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I know this question is somewhat beaten to death but I wanted to hear some long term results running at higher than spec voltages.

Here is what I can currently achieve with my 700:

1.80 933mhz - 118 max temp
1.90 980mhz - 127 max temp
1.95 1gig - 130 max temp

Does anyone maitain a 1.95 voltage or possibly higher on a consistant basis? (We are talking every time you boot up, surf the net, etc.)

Any problems? How long have you been running these higher voltages?



:D
 

Mikewarrior2

Diamond Member
Oct 20, 1999
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I personally wouldn't run a p3 over 1.85V, unless it is a cC0 chip. At 54C it is a tad warm.


Mike
 

Ficcion

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Aug 24, 2000
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Hey Mike,

What would you be comfortable running a cC0 chip at? Does the stepping make that much difference when were talking voltage?
 

Grendel99

Senior member
Dec 12, 2000
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I have a P3-700 @ 933 @ 1.65volts (stock voltage for cB0). It runs at around 40C under full load with one side of case off. I'm using a Coolermaster DP5-6H51 with thermal grease...

But your temps do sound pretty high...what are you using for cooling?
 

Lore

Diamond Member
Oct 24, 1999
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Keep in mind that the systems you buy from Dell, etc, are all running average heatsinks that will keep the CPU at a temperature low enough under spec (80C in this case), and not much lower than that. Even a chip temp of something like 65C is acceptable.

For a P3-700 I would not worry if you had a chip running at 54C, unless it was causing problems when you overclock.

edit: I'd worry more about feeding it too much juice!
 

Ficcion

Member
Aug 24, 2000
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Grendell,

I'm using the same heatsink as you (coolermaster). 48 C (933, 1.80v) is what I'm sitting at right now with prime 95 churning in the background, in other words full cpu load.

I'm just trying to figure out if people actually run cpu's at a consistent 1.95v or higher without any problems. I'm guessing most do not. They just want to see if the 1 gig is possible (like myself) and then bring her back down to a "respectable?"level for normal computing , gaming, etc.

 

Ficcion

Member
Aug 24, 2000
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Lore,

Juice kills cpu's?

I've always been under the impression heat was the major enemy? Control the heat and the battle is won?
 

jzodda

Senior member
Apr 12, 2000
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Ok here is my 2 cents

First off the voltage issue has been beaten up around here for as long as I can remember but its always a fun topic because if there was no danger from heat and/or spikes think of how high we could move our CPUS?. What I have gathered from most people OC' ing an FCPGA and from my own experience is that 1.85 is the max "safe" long term voltage. Now its not temp thats the only issue when you are talking about 1.90 and 1.95 and higher voltages. Temp is surely not an issue for me as my temp from a 700 FCPGA cbo @ 1000 and 1.95V is 7C at idle and at full load it never goes higher than 32C. Now I have a peltier on mine so temp is never an issue (unless the peltier gives out :) )

What I think people worry about is voltage spikes that can fry the CPU. The higher the voltage the higher the risk of a spike. I play with 1GZ and higher with voltages like 1.95 sometimes just to see how high I can go, but I stay at 1.85V and 960mhz for my operating speed. You will hear some people running at 1.95 and higher though I am sure. For me, I dont like to risk it.
 

Hanpan

Diamond Member
Aug 17, 2000
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I dunno i kinda have a miracle chip. IT will do 933 at 1.60 v with retail hsf but i currently have it at 1010 and only 32c under full load. It is slot one though with an alpha and as.