Voltage, temp, MBM5/CPU-Z accuracy questions

[SithSolo1]

System:
2500+ Barton 0343 locked 2.31ghz @ 1.75v according to the BIOS
Abit NF7-S v2.0
512MB (2x256) Dual-Channel LvL 2 PC3500 210mhz @ 2-3-3-11 2.8v
Thermalright SLK-900a w/ 64CFM 92mm fan and Arctic Silver Ceramique
Antec True380 PSU
2x7200rpm HDDs
floppy
DVD-Rom
CD-RW
2x120mm case fans
Radeon 8500
Wireless nic
Sound Storm
WinXP Pro w/ SP1


Voltage first:

Are these ok: Volt.gif
I've got the voltage set to 1.75 in the BIOS but both MBM5 and CPU-Z are fluxing between 1.71-1.74 during idle and dropping to about 1.70 under Prime.

Temperature:

MBM5 is reporting 46C under full load, the thermal probe in my case is reporting 51C at the same time. Which do I believe?

MBM5/CPU-Z Accuracy question:

How accurate are they with both temp and voltages?

Thanks,
J.

 

[myocardia]

Okay, so you got a really good chip. Any Barton that will do 2.3ghz at 1.70v is a keeper! Anyway, vcore always drops when you put the cpu under 100% load. 2)Temp probes are always more accurate than diode temps, assuming you installed it with the sensor actually touching the die itself. And MBM and CPU-Z are pretty accurate, which is why they are what everyone uses.

 

[SithSolo1]

Well I thought it was a keeper too but I can only hit 2.4ghz @ 1.85v. Max temp under load at that setting is 55C. Isn't this a little too hot for this amount of voltage? I mean, if the CPU will die at this setting in about 3-4 years, I have no problem keeping it. If it's gonna die in 3-4 months that's another story.

 

[myocardia]

2.3@1.70v will last about as long as that chip was going to last anyway. But, you may very well be buying another chip in a few months, if you try to run it at 2.4@1.85v. I don't know from personal experience, but I've heard of quite a few people, just on this one forum, killing a Barton with that much voltage. I'd definitely run it at 2.3ghz with 1.70v, for sure. It's not the temps that kills chips, it's the voltage.

 

[SithSolo1]

Yeah thats what I hear around here but if you go to the OCForums.com they say as long as you keep it cool you can up the voltage. Most of them are running 1.9 or higher. Some are running as high as 2.1 Then again they are also running at 2.5-2.8ghz and have more money to spar than I do. I only ran it at 2.4 for a few hours, then I set it back to default. I'm still putting the paste through thermal cycling.