I have a Aopen MK77M-8XN that will not boot up. Just a short beep

english
HOW TO CONNECT THE POWER BUTTON CABLES TO MY MOTHERBOARD?I disconnected the cables and now I don't know what order they go in.
so find the relic manual but maker is dead after 2011. for mobo.

google 4th hit bingo, page 32 .pin 11 to 12, spwr. across from 1.
gray pins?
a 20 pin header and not key so finding pin1 is job 1.
do not short the +5vdc pins there,!!!
the via chip sets are pure junk, avoid,VIA, SIS and Nforce mOBO.
go intel i3, up.

https://theretroweb.com/uploads/mobos/aopen-mk77m-ii/mk77m2.pdf

Go to the AOpen website (http://usa.aopen.com/index.aspx), click on download. In the drop down choose mother boards and then your model. Now if you click search it will bring up all downloads for your motherboard. Near the bottom of the list is manual, Click on the language of manual you need. Download from one of the FTP sites listed, the manual will contain a drawing of *********** board and were everything plugs in.

You can also take a flash light and magnifying glass and try to read on the mother board itself were every thing plugs in. Some motherboards have the information printed right on them, in very small mouse print.

try to look at the SATA configuration in your BIOS settings.. if its disable. just change it to enable mode. or switch your other hardware to slave mode. maybe there's a conflict in your devices.

try an IDE to SATA / SATA to IDE Converter

This website lists beep codes, might help.

http://www.computerhope.com/beep.htm

http://www.givemefile.net/smanuals/mainboards/aopen/mk77m-8xn.html ^^^ Manual

replace the ram

This is most likely a memory error. You didn't say if you've done any work inside the computer but if you have double check that the ram is seated correctly.

You bios is award and these are the beep codes:

Beep code brief:
1 Long Beep: Memory problem
1 Long Beep and 2 Short Beeps: Video error
Continuous Beeping: Memory or video problem
Any other beep pattern: Most likely Memory problem

1 long Beep: Memory problem
Something is wrong with the memory installed. Check out the troubleshooting memory problems FAQ for details. Note that there could also be something wrong with just accessing the memory (ie the motherboard has a problem).

1 long beep, then 2 Short Beeps: Video error
The motherboard is not able to access the video card for some reason. Either the video card is not working, it's memory is not accessable, or it's BIOS may be corrupt. This error code could also mean something is wrong with the motherboard.

Continuous Beeping: Memory or video problem
This is a tricky situation... likely the problem is either memory or the video. This can also be found when the motherboard is faulty.

3 beeps = memory
long beeps = processor

long and short mixed = main board,,,

yours sound like memory, try the memory in another pc and see if it works
if it does its your processor

cheers
]

The beep has an intentional sequence. Check out the motherboard manual to identify the beep pattern and the corresponding problem. For example, 3 short beeps indicate bad memory