Topic Title: Dead On Arrival?
Topic Summary: Is my CPU or MB dead?
Created On: 03/24/2014 07:06 PM
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 03/24/2014 07:06 PM
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KimbleCowboy
Peon

Posts: 2
Joined: 03/24/2014

Hi there,

Working on a build based on the MSI A78M-35 motherboard and an A8-5600K APU.

After assembly and a careful check to make sure everything is connected correctly, I applied power and I see nothing on the monitor. I am NOT using a dedicated graphics card for this build. I was expecting the motherboard and APU to generate the video that I should see.

I've not found anything anywhere saying I need to do something special to enable the APU video out through the motherboard. How can I tell if my APU or my motherboard is dead?

This is far from my first build, but it is my first with an APU as the sole source of video signal.

Thanks,

Pete

 03/24/2014 09:33 PM
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WMudrockJr
Overclocker

Posts: 705
Joined: 04/01/2013

Is there Bios setting that indicates FM2 vs FM2+ APU being installed. The board should support either APU, but there could be something about onbaord vs dedicate GPU.

If the fans all come on then maybe the APU is at fault. Best I can tell you, both my A8-5500 and A10-5800K worked without a hitch.



-------------------------

AMD A10-5800K, XFX 7850 Ultra OC Edition 975MHz, 16GB RAM, Win 8.1 Pro 64 bit, MSI 7778 motherboard, 500W PSU, HP P7-1235, CCC 13.12 WHQL

 03/24/2014 09:57 PM
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KimbleCowboy
Peon

Posts: 2
Joined: 03/24/2014

Hi there!

Thanks for the reply. In this case, I don't have the chance to look at the bios because the system never presents anything on the monitor. I'm boxing up the MB now to send back to newegg, in the morning.

Hope I don't find out the hard way that it was the APU that was DOA.

I've often built with AMD products and this is the first time I've had a problem so I think I've naturally assumed the MB was the problem.

Thanks,

Pete

 03/25/2014 10:36 AM
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logiotek
Peon

Posts: 34
Joined: 02/23/2014

Backtrack and reseat your APU and RAM by completely taking them out and installing them again. Check for bent pins and flush seating with the sockets for both. Make sure you got enough thermal adhessive material between APU/heatsink. Check that you got both your 24pin ATX and 4-8pin CPU power connectors to the motherboard plugged. Check for fans starting to spin when you press power button. What connector are you using for video output? Check that the same connector works with that monitor on another system or laptop. Try performing reset to BIOS defaults by pulling out backup battery from the motherboard, shorting a jumper, or pressing onboard button as per your motherboard manual.



-------------------------

  • APU: AMD A10-7850K OC (CPU @ 4.0GHz Turbo disabled, iGPU @ 960MHz, NB @ 1900MHz, VIDs @ Auto)

  • RAM: 16GB (2x8GB) DDR3-2400 AMD Radeon R9 Gamer R9316G2401U2K (Dual Rank DIMMs) @ AMP 2400MT/s 1.65V with manual optimizations: 11-12-11-27-1 (tCL-tRCD-tRP-tRAS-CR), 37-313-8-16-9-9-29 (tRC-RFC-tRRD-tWR-tWTR-tRTP-tFAW), 15 (AOD: DcqBypassMax)

  • Motherboard: Gigabyte GA-F2A88XN-WIFI Rev 3.0, F4b BIOS

  • Memtest86+ overnight stable

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