Power Supply DOA

**esteban** · 07-01-2004, 08:14 PM

Just started first PC build. Screwed in Antec 550 TruePower to case, connected case fan to standard 4 pin peripheral outlet on psu (not fan only outlet), plugged in the psu and turned it on (black switch from 0 to 1). I noticed that the case fan is not running. Then I noticed that neither of the 2 fans built into the psu are running.

Does this automatically mean that the psu is DOA? Is it possible that simply screwing the psu into the case has created a short. Does the motherboard need to be connected to the psu for the psu's internal fans to be running? What is the easiest way to test if the psu is DOA?

**Freakish** · 07-01-2004, 09:56 PM

grab one of these badboys

there at compusa and im sure that are fryes too (im not sure we dont have fryes around here)

i got that picture from here:

http://www.compgeeks.com/details.asp?invtid=ATX-PT

i have one and it works great. theyr pretty self explanitory

**Motoman** · 07-01-2004, 10:01 PM

You did not turn it on. The switch on the back is essentially a failsafe - it can deny the PSU the ability to be turned on or not - that's it.

An ATX PSU must be connected to a mobo, and the power switch jumpers on the mobo shorted (i.e. through the power switch on the case).

**Freakish** · 07-01-2004, 10:33 PM

Quote:

plugged in the psu and turned it on (black switch from 0 to 1)

Quote:

You did not turn it on

anyways i got a bad psu with my case the first time i tried building a comp and i didn't think to try it before putting everything together. When it didn't work i was pretty depressed. I bought one of those gadgets i mentioned above and the psu got one light to brighten on the tester (theres 7). They can save you a lot of trouble, even with later "projects".

**OS-Wiz** · 07-01-2004, 10:46 PM

You can turn on a PSU by momentarily shorting two pins on the 20-pin connector, problem is I've forgotten which two, but you can look in your mobo manual and figure it out.

Edit: found it, pins 14 and 15, here's pick:

http://modecideas.com/faq42.htm

07-01-2004, 08:14 PM	#1
esteban Expensive Sushi Join Date: Jun 2004 Posts: 20	Power Supply DOA Just started first PC build. Screwed in Antec 550 TruePower to case, connected case fan to standard 4 pin peripheral outlet on psu (not fan only outlet), plugged in the psu and turned it on (black switch from 0 to 1). I noticed that the case fan is not running. Then I noticed that neither of the 2 fans built into the psu are running. Does this automatically mean that the psu is DOA? Is it possible that simply screwing the psu into the case has created a short. Does the motherboard need to be connected to the psu for the psu's internal fans to be running? What is the easiest way to test if the psu is DOA?

07-01-2004, 09:56 PM	#2
Freakish Reef Shark Join Date: Jan 2003 Location: Boston, MA Posts: 407	grab one of these badboys there at compusa and im sure that are fryes too (im not sure we dont have fryes around here) i got that picture from here: http://www.compgeeks.com/details.asp?invtid=ATX-PT i have one and it works great. theyr pretty self explanitory __________________ \| X Dreamer II (yuck, i know) \| MSI K7N2 Delta L \| AMD 2800+ \| ATI 9700 Pro \| 512 Crucial pc3200DDR \| Samsung 52X32X52X16 DVD/CD-RW Combo \| Audigy 2 OEM \| WD 80GB SE \| Windows XP Pro \| NEC 19" CRT \| Microsoft Keyboard \| Logi MX500 \| _________________________________________ . FREAKISH . Audio: Klipsch Promedia 5.1s Home FB2k > EMU 0404 > ZA-Pimeta > HD 580s Portable H120 > KSC75's Z-Audio Forums are up!!!

07-01-2004, 10:01 PM	#3
Motoman Mako Shark Join Date: Sep 2000 Location: Wit yo momma. Posts: 4,327	You did not turn it on. The switch on the back is essentially a failsafe - it can deny the PSU the ability to be turned on or not - that's it. An ATX PSU must be connected to a mobo, and the power switch jumpers on the mobo shorted (i.e. through the power switch on the case). __________________ REMEMBER THE WORLD TRADE CENTER!!! My WTC Memorial Website (and other stuff) - I used to be a SETI top 0.2% user! - Modded Computers Main gaming rig: Athlon 64 3000+, ECS 755-A2, GeForce 6800 128Mb, Philips Acoustic Edge, 2Gb Corsair XMS PC3200, 120Gb Hard Drive, etc. Creative Labs = poop

07-01-2004, 10:46 PM	#5
OS-Wiz Got Game? Got nVidia? Join Date: Dec 2001 Location: St. Louis, Mo, USA Posts: 11,967	You can turn on a PSU by momentarily shorting two pins on the 20-pin connector, problem is I've forgotten which two, but you can look in your mobo manual and figure it out. Edit: found it, pins 14 and 15, here's pick: http://modecideas.com/faq42.htm __________________ The Money Trap = Intel i5 750 \| Cooler Master Hyper 212 Plus w/OCZ Freeze \| ASUS P7P55D-E \| 2 x 2GB Corsair DDR3 1600 \| eVGA GTX260 Core 216 \| OCZ Vertex Turbo 60GB SSD \| WD VelociRaptor \| Sound - X-Fi Fatal1ty \| Speakers - Klipsch ProMedia \| Case - Lian Li PC-G70B \| PSU - Antec Signature 850w \| Monitor - Samsung 214T 21" \| Windows 7 Ultimate 64-bit \| UPS - APC RS1500 Laptop = Acer 5740-5749 15.6" \| Intel I3 330M \| OCZ Vertex Turbo 30GB SSD \| BlueRay Player Last edited by OS-Wiz; 07-01-2004 at 11:00 PM.

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