power suply test?

Roy Rogers · 09-08-2006, 05:32 AM

My computer has an extremo 550 watt max power supply. It suddenly refuses to turn on. Is there a simple test to tell if the problem is the power supply or in the associated circuitry?

PC eye · 09-08-2006, 05:58 AM

You may have to recycle the supply itself by first setting the breaker switch to the off position to unplug the ac cord and then switching that back on. Then you press the power switch on the front of the case to see if there is a momentary flash of the power led or drive lights. That discharges the capacitors in the supply itself. Once that is done reverse the process and try starting up the system. If nothing is seen the other option is to shop for a supply tester. Antec has one in stores for about $10.

The other thing to look at is all power connections especially if you have been inside the case lately. If you were moving the wiring harness around the plugs for the power switch on the small block of pins may have been pulled off or lifted off on their own. That will stall everything. The last option isn't too good where you simply replace a bad supply.

**Archangel** · 09-08-2006, 01:28 PM

maybe a stupid question.. but did you check if the on/off switch of you case is still propperly connected to the motherboard?

diduknowthat · 09-08-2006, 11:15 PM

stick a paper clip in the black pin and the green pin of the 20/24 pin connector. If the PSU starts up, then it's probably working.

Roy Rogers · 09-09-2006, 06:38 PM

This is exactly what I was looking for, thanks folks. Also, there are no stupid questions, only insecure people who need their ego's stroked who think so.

**Archangel** · 09-09-2006, 06:55 PM

Quote:

Originally Posted by diduknowthat

stick a paper clip in the black pin and the green pin of the 20/24 pin connector. If the PSU starts up, then it's probably working.

thats why i asked the power switch question.. that litr=erairy does that

09-08-2006, 05:32 AM	#1 (permalink)
Roy Rogers Bronze Member Join Date: Jun 2005 Posts: 69	power suply test? My computer has an extremo 550 watt max power supply. It suddenly refuses to turn on. Is there a simple test to tell if the problem is the power supply or in the associated circuitry?

09-08-2006, 01:28 PM	#3 (permalink)
Archangel Moderator Join Date: Jan 2005 Location: Netherlands Age: 21 Posts: 8,099	maybe a stupid question.. but did you check if the on/off switch of you case is still propperly connected to the motherboard? __________________ Newton is dead, Einstein is dead, I don't feel very well either Xfire - Mirrari Intel Q6600 ( @3.6GHz) Asus Triton 79 Amazing 549/3200 4x 1Gb Corsair XMS2 DDR800 Asus Maximus Formula Asus & Sapphire HD3870 512Mb ( 850/1180 ) Corsair HX620W PSU

09-08-2006, 11:15 PM	#4 (permalink)
diduknowthat formerly liuliuboy Join Date: Jun 2005 Location: Massachusetts Age: 17 Posts: 6,481	stick a paper clip in the black pin and the green pin of the 20/24 pin connector. If the PSU starts up, then it's probably working. __________________ Dell Latitude XT Convertible Tablet Intel Core 2 Duo U7600 1.2ghz CPU 3GB DDR2 677 Memory 120GB 1.8" PATA Hard Drive ATI Radeon Xpress 1250 Graphics 12.1" WXGA LED Touch Screen N-Trig Capacitive Touch/Active Digitizer

09-09-2006, 06:38 PM	#5 (permalink)
Roy Rogers Bronze Member Join Date: Jun 2005 Posts: 69	fine suggestions This is exactly what I was looking for, thanks folks. Also, there are no stupid questions, only insecure people who need their ego's stroked who think so.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

09-08-2006, 05:58 AM	#2 (permalink)
PC eye Diamond Member Join Date: Apr 2006 Location: Inside a pc Posts: 19,730	You may have to recycle the supply itself by first setting the breaker switch to the off position to unplug the ac cord and then switching that back on. Then you press the power switch on the front of the case to see if there is a momentary flash of the power led or drive lights. That discharges the capacitors in the supply itself. Once that is done reverse the process and try starting up the system. If nothing is seen the other option is to shop for a supply tester. Antec has one in stores for about $10. The other thing to look at is all power connections especially if you have been inside the case lately. If you were moving the wiring harness around the plugs for the power switch on the small block of pins may have been pulled off or lifted off on their own. That will stall everything. The last option isn't too good where you simply replace a bad supply.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Weird question about computer regarding power supply	majestykelf	Computer Cases, Power Supplies and Cooling	2	08-22-2006 12:31 PM
PSU 101	Praetor	Computer Cases, Power Supplies and Cooling	6	07-14-2006 02:15 AM
compaq power suply	Ak-Sniper	Computer Cases, Power Supplies and Cooling	0	11-22-2005 05:00 AM
DC power jack	stilllearning6	Laptop and Handheld Computers	0	10-13-2005 12:10 AM