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Windows 7: Asus h81m-c - no signal detected / no bleep error code

17 Aug 2014   #1
ascomputers

Windows 7 Professional / Windows 8 Pro
 
 
Asus h81m-c - no signal detected / no bleep error code

Hi all,

Having issues with a ASUS H81M-C motherboard which shows no signal detected on boot.

Equipment
ASUS H81M-C MOBO, CORSAIR XMS3 4GB RAM 1600MHZ, INTEL G3258 1150 CHIPSET, 120GB SSD, BE QUIET 300W PSU

notes
no error bleeps on boot
no signal detected on screen
cannot access bios
reset CMOS - no success
moved all parts over to gigabyte mobo and all works well.
removed RAM from board and booted but no error codes from this either??

Whats frustrating is that I returned the mobo to the buyer who tested and showed as working correctly.??

Im thinking it maybe a RAM issue?
Does anyone have more experience with the ASUS mobos? Are they funny on RAM types/spec (checked QVL and Corsair RAM that i have picked is not showing)

I knew i should have stayed with Gigabyte

any thoughts/comments welcomed

thanks for viewing


My System SpecsSystem Spec
.
17 Aug 2014   #2
ascomputers

Windows 7 Professional / Windows 8 Pro
 
 

update on this. tried some 1333mhz RAM in the board but still no joy...
My System SpecsSystem Spec
17 Aug 2014   #3
TVeblen

Microsoft Community Contributor Award Recipient

Windows 7 64 Bit Home Premium SP1
 
 

That is a small power supply, and I've never heard of that brand.
Your symptoms could be caused by a bad or underpowered power supply. Particularly since the motherboard tests OK. Can you borrow one (larger) to test with?
My System SpecsSystem Spec
.

17 Aug 2014   #4
ascomputers

Windows 7 Professional / Windows 8 Pro
 
 

switched out and used a 600w power supply... and still no post to monitor.

Be Quiet are a high end brand from my understanding be quiet! Silent PSU & Cooling for your PC
My System SpecsSystem Spec
17 Aug 2014   #5
TVeblen

Microsoft Community Contributor Award Recipient

Windows 7 64 Bit Home Premium SP1
 
 

Yes, just because I never heard of it does not mean it's not good!

I like to track these problems down through process of elimination. So forgive me if I suggest something obvious. If it's not in your list of things you tried I think we have to eliminate it.

No signal indicates that there is no output from the video card or graphics chip. The simplest reason for this is a bad cable. So you should test that.

Your next step would be to check BIOS settings to be sure on-CPU graphics are enabled, or try a (different) video card.
My System SpecsSystem Spec
17 Aug 2014   #6
ascomputers

Windows 7 Professional / Windows 8 Pro
 
 

absolutely fine by me..

plugged in a graphics card which powered up (fan) but again no output to monitor.
switched cables using a VGA and then moved over to DVI-D
Cannot access the bios as no output.

i am certainly thinking that its a bad board the more time i spend on it... might take it back again with the components attached and ask them to take another look at it.
My System SpecsSystem Spec
17 Aug 2014   #7
TVeblen

Microsoft Community Contributor Award Recipient

Windows 7 64 Bit Home Premium SP1
 
 

When the motherboard was tested by others, did they test it with your RAM or theirs?
My System SpecsSystem Spec
17 Aug 2014   #8
ascomputers

Windows 7 Professional / Windows 8 Pro
 
 

there own ram and cpu. however, i have switched the RAM and both 1600mhz and 1333mhz failed to work.

also tried components in gigabyte mobo and worked.
My System SpecsSystem Spec
17 Aug 2014   #9
TVeblen

Microsoft Community Contributor Award Recipient

Windows 7 64 Bit Home Premium SP1
 
 

Something is missing. Motherboard tests good. RAM & CPU test good. Power Supply ruled out. Video ruled out.
Doesn't leave much.

All the RAM for that board is speced with voltages at 1.65v for almost all 1600, and 1.5v for all 1333. You should check that your RAM fall in there. The CAS Latency should be in the 8-9-10 range.

Have you tried removing everything from the system except PS, MB. CPU, RAM and Video?
My System SpecsSystem Spec
17 Aug 2014   #10
ascomputers

Windows 7 Professional / Windows 8 Pro
 
 

yes... bread boarded the mobo with minimum setup.

I've been on the ASUS website and think i might have an answer.

Will get my hands on an order chip tomorrow and see what happens.


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Asus h81m-c - no signal detected / no bleep error code-asus-bios.jpg 
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 Asus h81m-c - no signal detected / no bleep error code




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