Voltage question

[1sikbITCH]

Asus A7V
AMD Athlon Thunderbird 1Ghz @1000mhz

Temperature Sensor(s)
Board Temperature : 31.0°C / 87.8°F
CPU Temperature : 43.0°C / 109.4°F

Voltage Sensor(s)
CPU Voltage : 1.81V
+3.3V Voltage : 3.46V
+5V Voltage : 5.03V
+12V Voltage : 12.46V
-12V Voltage : -12.06V
-5V Voltage : -5.38V

Question- This is the default voltage, and it's has been running at this voltage for over 3 years now. If I turn the voltage down to say 1.75, will it lower the cpu temp while keeping it stable at the same speed? I am ordering an SK-7 for it as soon as they come in stock at Newegg or SVC, but I thought this might help too.

Also, judging by the fact that the voltages are maxed out on all rails, is the PSU a good candidate for failure in the near future? I've never checked before. This system could have been running like this the whole time.

Btw, all readings were almost exactly the same on both Sandra and MBM 5.

I'm building my wife a new system and donating this one to my brother, so I want to fix it up a little if I can.

 

[Boonesmi]

most motherboards usually adds a little voltage to the vcore to help ensure stability so 1.81 is pretty normal (you can try turn it down and it most likely will still be stable.. and yup it will lower your temps)

and all your others look good... they should all be running within + or - 10% of the stated spec




if your powersupply wasnt quite up to the task your 3.3v and 5v might be running at 2.9v and 4.5v

 

[1sikbITCH]

Oh, duh. I was thinking they were maxed out.

The PSU on my own system is the one that's screwed then

Thx for the reply

 

[msarusac]

I also have a voltage problem I'm trying to deal with...any insight would be greatly appreciated!

MB: Asus P2B-F
CPU: PII 350
Temperature: normal
VCORE: 3.6 V
All other voltages: normal

Peripherals:
Harddisk: IBM 7200rpm 9.0gig
CDROM
Floppy
Ethernet

So the problem started after I moved my computer from one place to another. It's been working just fine before the move. Once I moved it and turned it on...the fans ran and everything, but there's no screen on the monitor. So I switch the AGP video card out and tested it on another system...and the AGP vid card was functional. I also put a PCI vid card into non-functional system. With the new PCI vid card, there is a signal to the monitor, however now it's saying power management found an error. I looked inside bios and found that my VCORE voltage is at 3.6 (instead of about 1.8 i guess?)

I know next to nothing about computer voltages and thought, "hey...can't be that bad right?" and set bios to ignore the problem. So everything runs fine for a day or two. Then it starts to go crazy again. I boot up WinXP and then it gives me a disk error screen for about half a sec., and restarts by itself. It does it every single time I boot up. Can't go into safe mode or anything....

So, I just decided to reformat HD/reinstall XP and so far it's working fine again (however still with the VCORE voltage error)

So...what I wanted to know is: What do you guys think is wrong with my computer. Does it seem like a motherboard error? Or the power source? Or something else?

Sorry it's so long...I appreciate any feedback! Thanks!

 

[KimPhilby]

If it was really running at 3.6 it ought to be frying your CPU, so this suggests that you have a motherbaord problem - not that surprising when you consider how old it is. My Asus P2-B, in it's fourth system, gave up the ghost earlier this year - I/O errors on all disk drives - taking a floppy drive and CDROM with it. :brokenheart:

 

[KF]

> looked inside bios and found that my VCORE voltage is at 3.6 (instead of about 1.8 i guess?)

I don't know anything about your motherboard. If it is a slot CPU, take it out and put it back, making sure it is seated properly. The voltage is auto-set by the contacts. Take the HS off, clean off the old, maybe hardened, heatsink grease, and redo with new goo. If there are voltage settings in the BIOS, make sure they are set properly.

It is hard to believe the CPU would survive that voltage, but since you have problems, it would be poor proceedure to just assume the sensor is wrong.

For better responses, I think it would have been better to start your own thread.

 

[Boonesmi]

on an old pentium2 the default vcore is much higher then current cpu's (im not sure exactly what it is, but default is probably around 2.8v)

also are you sure the 3.6v isnt the i/o v?

 

[msarusac]

Thanks for the input...I'll give it a try when I get the chance...

Originally posted by: Boonesmi
on an old pentium2 the default vcore is much higher then current cpu's (im not sure exactly what it is, but default is probably around 2.8v)

also are you sure the 3.6v isnt the i/o v?

yea...I'm pretty sure that's the vcore voltage. In power management, it says: VCORE: 3.6 (err)

 

[Boonesmi]

if you dont already have a manual for that motherboard, go to the asus web site and download it... it may have jumpers to manually set the vcore

then check on the cpu itself, it probably says what the default vcore should be... then if it does have jumpers you can set them where they need to be