Need IMMEDIATE help

alex_tr · 10-14-2007, 03:42 PM

i have an msi nx8600gts oc and it has a really loud fan but u can mod it by unplugging the 12v fan wire and putting in the 5v wire.
i did tha and the fan doesnt turn on at all. and when i reverted back to 12v it doesnt turn on at all either. Help?!

alex_tr · 10-14-2007, 04:20 PM

Another thing, I noticed that there's a plug on my motherboard called PWR_FAN. i was wondering if plugging the video card fan into that will help. will it?

alex_tr · 10-14-2007, 06:26 PM

never mind, i'll try to return it first

Nutritious · 10-15-2007, 11:19 AM

I'm no vid pro here, but I'd guess that plugging in a lower Voltage wire into your fan probably isn't providing enough power to spin it. I'd check on New Egg for some sort of fan speed controller and plugging it into that rather than trying different wires.

If not, wouldn't you rather deal with the noise than risk overheating your GPU?

ebackhus · 10-15-2007, 11:57 AM

Undervolting can often be as bad as overvolting.

The PWR_FAN pins on the motherboard are for controlling fans in the PSU. Not many PSU's use this feature anymore.

10-14-2007, 03:42 PM	#1 (permalink)
alex_tr Registered User Join Date: Feb 2007 Posts: 44 OS: XP	Need IMMEDIATE help i have an msi nx8600gts oc and it has a really loud fan but u can mod it by unplugging the 12v fan wire and putting in the 5v wire. i did tha and the fan doesnt turn on at all. and when i reverted back to 12v it doesnt turn on at all either. Help?!

10-14-2007, 04:20 PM	#2 (permalink)
alex_tr Registered User Join Date: Feb 2007 Posts: 44 OS: XP	Re: Need IMMEDIATE help Another thing, I noticed that there's a plug on my motherboard called PWR_FAN. i was wondering if plugging the video card fan into that will help. will it?

10-14-2007, 06:26 PM	#3 (permalink)
alex_tr Registered User Join Date: Feb 2007 Posts: 44 OS: XP	Re: Need IMMEDIATE help never mind, i'll try to return it first

10-15-2007, 11:19 AM	#4 (permalink)
Nutritious Registered User Join Date: Apr 2006 Posts: 41 OS: Win XP Professional My System	Re: Need IMMEDIATE help I'm no vid pro here, but I'd guess that plugging in a lower Voltage wire into your fan probably isn't providing enough power to spin it. I'd check on New Egg for some sort of fan speed controller and plugging it into that rather than trying different wires. If not, wouldn't you rather deal with the noise than risk overheating your GPU?

10-15-2007, 11:57 AM	#5 (permalink)
ebackhus Manager, Design Join Date: Apr 2005 Location: SATX Posts: 14,255 OS: WinXP Pro SP3/Windows 7 RTM My System Blog Entries: 28	Re: Need IMMEDIATE help Undervolting can often be as bad as overvolting. The PWR_FAN pins on the motherboard are for controlling fans in the PSU. Not many PSU's use this feature anymore. __________________ ----------------------------- There are no dumb questions, unless a customer is asking them. Help in the fight against cancer and other serious illnesses.