Sign in with
Sign up | Sign in
Your question
Solved

This build has me at my wits end! It will not beep or output video.

Tags:
  • Systems
Last response: in Systems
Share
October 8, 2013 7:10:54 PM

The original build was:

Intel 4930K CPU
Asus P9X79 Pro mobo
EVGA NVidea GTX 650TI Boost
Crucial Ballistix DDR3 16GB (x2)
Corsair CX2 750W PSU
Seagate 1TB 7200rpm SATA HD

From the beginning the machine would light up like normal, but no beep codes and no video. It spins up the hard drive and if there's a disk in the optical drive it spins that up too.

Because the fans on the EVGA didn't spin I originally suspected a bunk video card and swapped to a MSI Twin Frozer GTX 660.

That didn't change anything other than now the fans on the video card spin when the system is powered up. So I called ASUS customer support and they came to the conclusion the mobo was shot. It has been replaced but is still a P9X79 Pro.

At this point I thought it might be a hardware conflict with the RAM since I had never used Crucial products before so I swapped to Corsair Vengence 16GB DDR3 (2x). I tried using 1 DIMM for compatibility before (with Crucial) and after (Corsair) the swap and it didn't change anything.

So the only remaining original components are the CPU, Case, PSU, hard drive, optical drive and heatsink. The system still will not beep and still doesn't show anything on screen. I tested the new monitor for this system by hooking up to my current desktop and it worked fine.

I've torn it down and rebuilt it 5 times (hoping I just had a loose connection somewhere that I missed on the first 4 rebuilds lol) as well as had the guys at Micro Center look at it. Still no answers.

Any suggestions or known conflicts with this setup?

Thanks!

More about : build wits end beep output video

October 8, 2013 7:22:37 PM

Sounds like your missing the 12volt cpu power connector. Just for fun make sure the 8 pin, or 4+4 pin is connected. Then unplug it and see what the computer does. If it acts the same with that power wire unplugged as it does with it in then chances are there is a problem with that PSU.
m
0
l

Best solution

October 8, 2013 7:22:45 PM

i dont know why asus or micro center support did not use the usb flashback port and update the motherboard bios. under cpu guild you need almost the last bios file for the cpu to post. I would have flashed the bios to the last bios file to rule out missing cpu code.
Share
Related resources
October 8, 2013 7:31:59 PM

bucknutty said:
Sounds like your missing the 12volt cpu power connector. Just for fun make sure the 8 pin, or 4+4 pin is connected. Then unplug it and see what the computer does. If it acts the same with that power wire unplugged as it does with it in then chances are there is a problem with that PSU.


Unplugging the CPU power causes the system to light up and spin up like normal, only it sort of makes a strange whirring noise when the power is not connected.

Interestingly, the machine starts up like normal with the power disconnected, but when the power is connected it starts up, then shuts down for 3 seconds before starting back up again (it seems to do this every time the power is cut unless you use the onboard power switch on the mobo... some sort of self check?). Either way, no video.
m
0
l
October 8, 2013 9:03:31 PM

Thanks Smorizio! You were 100% correct. This never occurred to me and apparently not to the Micro Center techs either. Now I just need to get my $39.99 back!
m
0
l
October 8, 2013 9:24:43 PM

check with asus too that they sent you a new motherboard on your rma or a used one.
m
0
l
October 8, 2013 10:49:02 PM

smorizio said:
check with asus too that they sent you a new motherboard on your rma or a used one.


I actually got a NIB one from Micro Center because their techs were convinced that it was fried.
m
0
l
October 8, 2013 10:59:17 PM

if you wnet into the cambrige store 121 say hi to them..I used to work there few years ago....miss all the free swag i used to get.
m
0
l
!