ASUS B75M-PLUS: On-board video not working.

[Alistair Hansen]

Hi there just got this for $13 at a local computer shop.

As follows:
ASUS B75M-PLUS: https://www.asus.com/Motherboards/B75MPLUS/HelpDesk_CPU/
Intel® Core™ i5-3470 Processor: https://ark.intel.com/products/68316/Intel-Core-i5-3470-Processor-6M-Cache-up-to-3_60-GHz
Case: APEX TX-373 Black Steel MicroATX Mid Tower Computer Case: http://www.apextechusa.com/products.asp?pID=100

Just grabbed my ram from my main pc and a spare HDD with a iPower 350W Switching PSU Model: DR-8360BTX to test if this works but the
on-board video wasn't working (only tested VGA & hdmi ports not the dvi) so I put my Gigabyte Geforce GTX 750 2GB in and it works fine
and I have installed windows 10 64bit and so far have not come across no other problems.

Have just gone though BIOS again and still nothing. Any solutions available or is the on-board graphics stuffed? Cheers.

 

[DRagor]

Since it was probably used mobo, it could have iGPU turned off in BIOS. Did you tried turning it on in BIOS?

 

[Alistair Hansen]

Yip I tried that and nothing it just beeps can't remember exactly how many can't find out till tomorrow.

 

[DRagor]

So your last chance is DVI port, maybe it will work.
Other possible reason would be faulty CPU. But i'm hard to imagine what could cause iGPU to fail on CPU and still rest of CPU working - but it is possible.

 

[smorizio]

make sure the mb has the newest bios file. is the video card on the top video slot and is the 4/8 pin cpu power plug connected on the mb. in the bios you see priamny dispaly should be set to ipgpu. then under it turn on muilt monitor support. with both on the ipgpu should be first the gpu second.

 

[Alistair Hansen]

So your last chance is DVI port, maybe it will work.
Other possible reason would be faulty CPU. But i'm hard to imagine what could cause iGPU to fail on CPU and still rest of CPU working - but it is possible.

I have tried it with iGPU on but nothing just got beeps.

Audio of beeps: https://www.dropbox.com/s/53ez7n8x24kpai3/Voice%20002_sd.mp3?dl=0

If the CPU is working now could it fail if its the CPU causing the fault?

Cheers.

 

[DRagor]

Well, interesting. It makes long beep, follows with 3 short, then adds one more short after awhile. 1/3 would mean "No VGA". 1/4 would mean "Hardware failure". However it looks more like 1/3 then 1 to me, so "no VGA" then "boot ok" (you can boot without graphic card).
Considering that it works with GPU, I'd say most likely it's some kind of motherboard fault.

 

[Alistair Hansen]

Is it a good idea to update BIOS then try again if it doesn't work then assume it is dead?

 

[DRagor]

Nope, integrated graphics should work 100% well no matter what BIOS version onboard. So it's not going to change anything.

 

[Alistair Hansen]

Oh well at least motherboard is working. Thanks for your help.