First Time Builder: Power Supply Help Please

T

TheBadGuy

New Member
Greetings everyone,

I have been saving away and got the last of my parts for a new computer build today. I took the day off work, carefully read every manual and installed every device correctly. When it came time to power up, I got two blinking leds on my motherboard but nothing else.

I verified all connections, tried again and got the same result. I first noticed, no fans, hard drive lights, NOTHING was coming on but those two leds on the motherboard. So I disconnected all power cables to where the power supply was not hooked to anything and with my multimeter, I verified that NONE of the 4 pin connectors coming from the PSU had power. The only place I can read power is on the 20 pin main motherboard connector.

So to me, it appears my power supply is DOA. Would that sound logical?? Is there anything else I can check? I mean, if I plug a 4 pin power connector directly into a 20mm fan, shouldn't it begin to spin? The main 20 + 4 pin connectors do not have to be connected for the 4 pin connectors to get power do they?

I am very upset as all the stores that would sell a PSU are closed now and will be tomorrow as well. I bought this PSU online from a respectable merchant and I am sure I can get it replaced, but I am not going to sit around and wait till that happens. I will go out first thing on Friday and buy a new one and then sell the one I get replaced from the company. That is unless someone thinks this can be something else??

I would imagine all of the power supply cables should have a constant DC output but maybe I am wrong. Below is all the components for reference


* VGA nForce 680i SLI Motherboard w/ Intel Quad Core

* ASUS Arctic Square 92mm Vapo Bearing CPU Cooler

* VGA EVGA 640-P2-N829-A1 8800GTS640M

* 4 Gb OCZ Platinum RAM

* Cooler Master 650 W PSU

* Cooler Master Cosmos 1000 ATX Full-Tower Case

* Lite-On x 20 DVD Burner w/ light scribe as primary

* Lite-On x 20 DVD Burner w/o l.s. as secondary

* Seagate 7200 16mb 500 GB

* Western Digital Caviar SE16 WD7500AAKS 750GB 7200 RPM

* Koutech IO-RCM620 USB 2.0 3.5"/5.25" Card Reader

Thanks in advance
 
Turns out its not the PSU. I opened up another home computer and with the main motherboard PSU cable unplugged, there is no voltage out of 4 pin. Connect the main motherboard cable and voltage gets to 4 pin connectors. Who knew?:D

I am not to the next problem now.

Bios ROM error

Then it says

No Keyboard present (there is, via USB)

and then it says

detecting floppy media A:

Then system halt

:confused::(
 
TheBadGuy said:
Turns out its not the PSU. I opened up another home computer and with the main motherboard PSU cable unplugged, there is no voltage out of 4 pin. Connect the main motherboard cable and voltage gets to 4 pin connectors. Who knew?:D

I am not to the next problem now.

Bios ROM error

Then it says

No Keyboard present (there is, via USB)

and then it says

detecting floppy media A:

Then system halt

:confused::(
Click to expand...

did you try putting in your mobo cd booting and flashing the bios with it? worked for me hope this helps
 
AznPride83 said:
Use a PS2 keyboard when you first boot into bios, then you have to set it to USB
Click to expand...

Bingo, that cleared the keyboard trouble but I still had the other faults. Can't flash bios without ability to set boot sequence for it to try the dvd player and turn off A: drive floppy.

Can you believe Evga has 24/7 tech support? I found that out around 2 am. 2 am Thanksgiving morning and I got right through. Lucky, I DID have a PS2 keyboard on one of my home computers, that cleared the keyboard error, took out everything down to bare bone and it that got me into the bios. Add components back one by one and had a full working system by 3:30 am :)

Thanks for the help guys, I am sure I will have more questions in the near future as I have never overclocked before and that will be one of the next steps once my OS arrives in the mail tomorrow and I get the software squared away
 
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