Problem with my psu, or ram, or ..?

venson · 08-23-2009, 04:09 AM

Ok, here is the deal... i have an old pc, used to have 512 of ram, and i found 2x512 extra ram dimms, so i tried to put them on my pc. (all 3 rams are of the same company, jetram). I first tried to place just 1 additional dimm, it worked fine.. when i tried to put another one, catastrophe happened..
I've tried everything, and my pc wont even start! I placed again just that one ram i had in the first place, still nothing. i cleared my cmos, still nothing.
I noticed one thing though.. my psu's fan is not working either. so i tried to short-circuit the Power_On cable on the 20pin power supply cable, and the fan worked!
Any idea of what could have happened?
Thanx in advance

**wrench97** · 08-23-2009, 04:36 AM

What Brand and Model PC or if custom built what Motherboard, CPU, Video card and power supply do you have?

Stu_computer · 08-23-2009, 07:08 AM

With used computers the slots should be cleaned prior to adding ram to remove dust and oily films--a potential short circuit.
Use an Electronics Contact Cleaner spray or alternatively a swab stick dampened with 90% Isopropyl alcohol, (never less than 90%) and then blow dry using canned air. can substitute a folded coffee filter (unused) for swabbing. ram modules should be cleaned as well. (Wiping the module connectors with a pencil/pen eraser works too.)

Since the case is already open it's a good time to do a general cleaning of all I/O cards and slots and fans--ram and video cards last longer and work better when kept clean.

08-23-2009, 04:09 AM	#1 (permalink)
venson Registered User Join Date: Aug 2009 Posts: 1 OS: XP/Vista	Problem with my psu, or ram, or ..? Ok, here is the deal... i have an old pc, used to have 512 of ram, and i found 2x512 extra ram dimms, so i tried to put them on my pc. (all 3 rams are of the same company, jetram). I first tried to place just 1 additional dimm, it worked fine.. when i tried to put another one, catastrophe happened.. I've tried everything, and my pc wont even start! I placed again just that one ram i had in the first place, still nothing. i cleared my cmos, still nothing. I noticed one thing though.. my psu's fan is not working either. so i tried to short-circuit the Power_On cable on the 20pin power supply cable, and the fan worked! Any idea of what could have happened? Thanx in advance

08-23-2009, 04:36 AM	#2 (permalink)
wrench97 Moderator, Hardware Team Join Date: May 2008 Location: S.E. Pennsylvania Posts: 18,539 OS: Win7	Re: Problem with my psu, or ram, or ..? What Brand and Model PC or if custom built what Motherboard, CPU, Video card and power supply do you have? __________________ Power Supply and Selection

08-23-2009, 07:08 AM	#3 (permalink)
Stu_computer Tech Hardware Team Join Date: Jul 2005 Posts: 1,459 OS: Windows	Re: Problem with my psu, or ram, or ..? With used computers the slots should be cleaned prior to adding ram to remove dust and oily films--a potential short circuit. Use an Electronics Contact Cleaner spray or alternatively a swab stick dampened with 90% Isopropyl alcohol, (never less than 90%) and then blow dry using canned air. can substitute a folded coffee filter (unused) for swabbing. ram modules should be cleaned as well. (Wiping the module connectors with a pencil/pen eraser works too.) Since the case is already open it's a good time to do a general cleaning of all I/O cards and slots and fans--ram and video cards last longer and work better when kept clean. __________________