POST beep video error - 2 video cards do not work

yesitsnicholas

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Apr 23, 2014
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4,510
So I am attempting to build a computer and am consistently running into a POST beep error indicating a video output problem - 1 long beep followed by two short beeps. I am working with the following parts:

PCPartPicker part list: http://pcpartpicker.com/p/38dCb
Price breakdown by merchant: http://pcpartpicker.com/p/38dCb/by_merchant/
Benchmarks: http://pcpartpicker.com/p/38dCb/benchmarks/

CPU: AMD Athlon X4 740 3.2GHz Quad-Core Processor ($74.98 @ OutletPC)
Motherboard: Asus A55BM-E Micro ATX FM2+ Motherboard ($49.99 @ Newegg)
Memory: Kingston Blu 8GB (2 x 4GB) DDR3-1600 Memory ($79.30 @ SuperBiiz)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($59.99 @ Amazon)
Video Card: EVGA GeForce GTX 750 1GB Video Card ($117.99 @ Newegg)
Case: Rosewill RANGER-M MicroATX Mini Tower Case ($43.98 @ Newegg)
Power Supply: FSP Group 300W 80+ Certified Micro ATX Power Supply ($41.99 @ Amazon)
Optical Drive: Samsung SH-224DB/BEBE DVD/CD Writer ($15.98 @ OutletPC)
Total: $484.20
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-04-23 00:35 EDT-0400)

So I have assembled the computer above. Checked and rechecked the wiring. The only strange thing that I have not encountered in building a PC before was that the PSU connection to the motherboard has a 20-pin and 4-pin connector instead of a single 24-pin, but the two side by side fit just fine (I have simply not seen this before).
When I boot, with or without the video card, I do not get a successful POST - instead, I get that video error (1 long 2 short beeps). Unfortunately, the processor requires a discrete GPU, so I cannot access BIOS without my GPU working. I manually reset CMOS, same issue occurs.

I thought my card was DOA, but upon receiving a new one, I still get the same error. I even tried taking the RAM out to see if I could get a RAM error, and I still get the video error.

Has anyone heard of a problem like this or have any ideas of how to proceed? I am thinking of swapping power supplies and graphics cards (my old GPU is too wattage intensive to use with my current PSU). I'm really at a loss here since I can't even get into BIOS.

Any suggestions are welcome, please halp.

Thanks.
 
I had to have a good look at the kit for any problems.
Far as I know the Geforce 750 card does not require any sort of extra power feed from the Psu.

What does matter though is that you have connected the four pin from the Psu to the board also.

You should of had a 24 pin atx block and a single four block with two yellow and black wires fitted to it.

You must connect this from the Psu to the board at the top edge where it says EPU 12v. Or you will get an error from the bios saying it cannot find the card.

The four pin provides 75w of power from the board to the actual Pci-e slot.
And why you get a bios error code of no card found when in the slot.

http://www.asus.com/Motherboards/A55BME/gallery/


One long
three short
Cannot detect any VGA card or VGA
card test fail

Lack of power from the motherboard Epu 12v to the Pci-e slot of the actual board.

Connect EPU 12v supply from PSU to board.





 

yesitsnicholas

Reputable
Apr 23, 2014
2
0
4,510


I am sorry it has taken me so long to respond - I appreciate your quick answer! I hit finals week, graduation, and had to move, so I have been extremely busy, and thus unable to work on this computer.

I have that 4-pin connector plugged in (and had it plugged in when I made this post). I have attached pictures of my wiring on the motherboard for reference.

http://i.imgur.com/MhRrCvA.jpg
http://i.imgur.com/MhRrCvA.jpg
http://i.imgur.com/FcnG3PD.jpg