Voltage on Prescott

[mookydooky]

Does anyone have an answer to this? No matter what I set the voltage at in the BIOS, when I run CPU-Z, it tells me the voltage is 1.392V. I just popped it up to 1.475 from 1.45 because of a crash and things seem stable for now, but in CPU-Z, it still reads 1.392.

[XeroHouR]

I believe the answer to your question lies here:
Ep-4pda2+ Rev 2

but if u want the short of it:
according to ET and other sites, motherboards are detecting Prescotts, and disabling voltage adjustments. This is because the 90nm chips have picky power schemes, and could easily kill a board prematurely, so basically its preventative.

[mookydooky]

Originally Posted by XeroHouR

I believe the answer to your question lies here:
Ep-4pda2+ Rev 2

but if u want the short of it:
according to ET and other sites, motherboards are detecting Prescotts, and disabling voltage adjustments. This is because the 90nm chips have picky power schemes, and could easily kill a board prematurely, so basically its preventative.

That's not the problem I'm having. I CAN adjust the voltage in the BIOS. Something must be happening because if I drop the voltage, the machine crashes as soon as it gets to the desktop.

[XeroHouR]

Eh, I assumed that maybe even though its adjustable, some bios setting made it unstable. I'd assume thats part of it, but I guess theres a lot of assuming there What board is it?

[mookydooky]

Originally Posted by XeroHouR

Eh, I assumed that maybe even though its adjustable, some bios setting made it unstable. I'd assume thats part of it, but I guess theres a lot of assuming there What board is it?

It's pretty stable once I pop the voltage in the BIOS up to 1.5V. It ran 3 hours of dual instances of Prime95. It's been running two instances of FAH for about 10 hours now. The board is a Shuttle FB61. I think the most likely situation is that none of the available software is reading the voltages correctly.

[Smolika]

Speaking of voltage, is there a program that will allow for adjustments to the vcore and/or vdimm? My bios doesn't support voltage tweaking. =(

[Gizmo]

What board are you running?

[Smolika]

I'm running an ECS 915P-A 1.1. Any programs that'll help?

[Gizmo]

Mmm...sorry. I'm not even passingly familiar with that board, so I don't know. Maybe one of the others here knows.

[Smolika]

Shucks, but do programs exist that allow you to change the voltage on a motherboard?

[Gizmo]

Only if the motherboard is designed with that capability. All mobos have to have the capability to adjust the voltage, but some of them do it through hardware only, while others do it through software configuration.

[woodeirl]

Im running a P4 prescott 3.2 on a Asus mb and when i change the voltage in the bios to 1.45 + , Cpuz reads it as the same way yours does too!