7v Fan shuts down PSU?

beav · 12-31-2001, 04:19 PM

I tired hooking up my 120mm Panaflo High at 7v, and when i power on the psu, it spins for about a second and then dies. I have to Unplug the psu, plug it back in, and switch the back switch on.

Is it bad to put a ground load on the 5v line?

Joe · 12-31-2001, 04:41 PM

Uhh YESSSS!!!

you should never put a direct ground load on a 5 or 12v line from a PSU. Thankfully your PSU is smart, and detected the short and stoped from powering up.

do NOT ground out any 5 or 12 v line from the PSU, you need to put it through a load of some sort.

Brad · 12-31-2001, 04:45 PM

if you connect a computer up to the psu, and run a fan on 7v you won't have a problem.

The psu will not like current coming in on the 5v line at all.

12-31-2001, 04:19 PM	#1
beav Cooling Neophyte Join Date: Aug 2001 Location: Danville Posts: 96	7v Fan shuts down PSU? I tired hooking up my 120mm Panaflo High at 7v, and when i power on the psu, it spins for about a second and then dies. I have to Unplug the psu, plug it back in, and switch the back switch on. Is it bad to put a ground load on the 5v line? __________________ What a chump.

12-31-2001, 04:41 PM	#2
Joe The Pro/Life Support System Join Date: Dec 1999 Location: Denver, CO Posts: 4,041	Uhh YESSSS!!! you should never put a direct ground load on a 5 or 12v line from a PSU. Thankfully your PSU is smart, and detected the short and stoped from powering up. do NOT ground out any 5 or 12 v line from the PSU, you need to put it through a load of some sort. __________________ Joe - I only take this hat off for one thing... ProCooling archive curator and dusty skeleton.

12-31-2001, 04:45 PM	#3
Brad Thermophile Join Date: Oct 2001 Location: Nuu Zeeelin Posts: 3,175	if you connect a computer up to the psu, and run a fan on 7v you won't have a problem. The psu will not like current coming in on the 5v line at all.

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