PCI-Express Voltage

Pesticle · May 30, 2007, 06:25 AM

Didn't think I'd have to resort to posting a topic about this, but I just can't find any information on the subject through google searches. I have a PCI-Express X1950 Pro 256 mb card, and I just wanted to know what I should set the PCI-Express voltage option to in the BIOS, I just feel a lot better manually configuring these things instead of letting the BIOS handle it, especially since I've noticed higher temps on my card since I switched motherboards.

Thanks everybody.

ChaosMinionX · May 30, 2007, 06:34 AM

Quote:

Originally Posted by Pesticle

Didn't think I'd have to resort to posting a topic about this, but I just can't find any information on the subject through google searches. I have a PCI-Express X1950 Pro 256 mb card, and I just wanted to know what I should set the PCI-Express voltage option to in the BIOS, I just feel a lot better manually configuring these things instead of letting the BIOS handle it, especially since I've noticed higher temps on my card since I switched motherboards.

Thanks everybody.

Is 1.6v an option? thats what I always set my P5B to for PCIE voltage.

I run a X1900XTX, but I believe somewhere in the realm of 1.5-1.9v is safe.

EDIT: If none of those are present, what board are you running?

Pesticle · May 30, 2007, 07:05 AM

I have an ASUS a8n-sli SE, and the ASUS utility is telling me PCI-E is at 3.33 v

God, It's like I can't even trust the manufacturer's utlity to tell me accurate information.

Dyre Straits · May 30, 2007, 07:18 AM

The PCI Express Voltage on my ASUS A8R32-MVP Deluxe can be set: 1.2, 1.3, 1.4, 1.5. But, that's the voltage on the motherboard.

The voltage coming from the PSU to the video card is 12 V.

I'm not sure where or why this 3.3 V is showing as an option for you. ???

Pesticle · May 30, 2007, 07:43 AM

Not an option, it's just reported in a monitoring utility, the ASUS one infact. It clearly says PCI-E

H3X4D3C1M4L · Jun 3, 2007, 07:15 AM

I don't think extra PCI-e voltage would heat up your card. More than anything too much would kill it, too little would make it unstable.

Motherboard manual should tell you all this, no?

CDsDontBurn · Jun 3, 2007, 11:24 AM

i'm pretty sure that the default voltage of the pci-e slot on all pci-e MoBos is 1.5v.

but why adjust it though? wouldn't it be like adjusting the voltage in that old AGP based system?

H3X4D3C1M4L · Jun 6, 2007, 04:48 AM

Quote:

Originally Posted by CDsDontBurn

but why adjust it though? wouldn't it be like adjusting the voltage in that old AGP based system?

Actually that's exactly what its like... why I didn't cite that example can only be because it was just that obvious to me I thought it implied

May 30, 2007, 06:25 AM	#1
Pesticle DriverHeaven Lover Join Date: Jun 2005 Posts: 155 Rep Power: 0	PCI-Express Voltage Didn't think I'd have to resort to posting a topic about this, but I just can't find any information on the subject through google searches. I have a PCI-Express X1950 Pro 256 mb card, and I just wanted to know what I should set the PCI-Express voltage option to in the BIOS, I just feel a lot better manually configuring these things instead of letting the BIOS handle it, especially since I've noticed higher temps on my card since I switched motherboards. Thanks everybody.

May 30, 2007, 07:05 AM	Thread Starter #3
Pesticle DriverHeaven Lover Join Date: Jun 2005 Posts: 155 Rep Power: 0	I have an ASUS a8n-sli SE, and the ASUS utility is telling me PCI-E is at 3.33 v God, It's like I can't even trust the manufacturer's utlity to tell me accurate information. Last edited by Pesticle; May 30, 2007 at 07:12 AM.

Jun 3, 2007, 11:24 AM	#7
CDsDontBurn Lurking DriverHeaven Join Date: May 2003 Location: Southern California Posts: 22,779 Rep Power: 235 System Specs	i'm pretty sure that the default voltage of the pci-e slot on all pci-e MoBos is 1.5v. but why adjust it though? wouldn't it be like adjusting the voltage in that old AGP based system? __________________ Her First Day \| A year later

May 30, 2007, 07:43 AM	Thread Starter #5
Pesticle DriverHeaven Lover Join Date: Jun 2005 Posts: 155 Rep Power: 0	Not an option, it's just reported in a monitoring utility, the ASUS one infact. It clearly says PCI-E

Jun 3, 2007, 07:15 AM	#6
H3X4D3C1M4L DriverHeaven Extreme Member Join Date: May 2005 Posts: 6,794 Rep Power: 0	I don't think extra PCI-e voltage would heat up your card. More than anything too much would kill it, too little would make it unstable. Motherboard manual should tell you all this, no?