- Jul 31, 2018
- 14
- 0
- 1,510
My Acer B85H3-AM (M4630g) motherboard displays no video or power to the keyboard and mouse from any port
I bought this computer from ebay so i can pair it with a strix 970 but when i got all the parts neither the 970 or the motherboard show any video with the 3 screens i tested
When it first came here the pc i pluged it to the wall and it turned on, The front panel button didn't work it was not broken but there was no response from the computer when i press it or hold it
seeing thet the 350w power supply wouldn't be enough for the graphics card i switched it for a perfectly working CX550M and used a 24 pin to 12 pin adapter,
Put the 970 on, connected everything and used a HDMI to the graphics card and it didn't show video or power on the keyboard
Tried using both power supplies at the same time (550 for the graphics card 350 for the rest) no results
Did a Bios beepcode test and the only i got was a long beep, acording to http://www.bioscentral.com/beepcodes/amibeep.htm
POST has passed all tests
Switched to every ram combination that i got (2+2+4 gig sticks) with no results
Clear cmos using the jumper, and changed the battery with no results
After reading in some forums i read that the system could be ignoring the graphics card so i used a Displayport, VGA, DVI-D but still no video, no power on the keyboard (altrough i noticed that when i slowly plug the keyboard on the usb ports there's a breif moment of energy passing trough but no signal or change)
That's all i can think for now, i tried everything in this guide too: http://www.tomshardware.com/forum/261145-31-perform-steps-posting-post-boot-video-problems
if any of you know something about what could it be of if you need more information i'll be quick to answer
Specs:
CPU: I7-4770
Motherboard: Acer B85H3-AM
RAM: 2x2gb@ 1600 + 1x4gb@ 1600
CPU Cooler: Stock Acer Aspire Veriton Cooler Master 95W
Video Card: Strix - GTX970 - DC2OC - 4GD5
Power Supply: Corsair CX550M
Hard Drive: Seagate 500GB
Operating System: Windows 10 (as far as i know)
Case: Acer Veriton M4630g case (Tested the motherboard outside the case)
I bought this computer from ebay so i can pair it with a strix 970 but when i got all the parts neither the 970 or the motherboard show any video with the 3 screens i tested
When it first came here the pc i pluged it to the wall and it turned on, The front panel button didn't work it was not broken but there was no response from the computer when i press it or hold it
seeing thet the 350w power supply wouldn't be enough for the graphics card i switched it for a perfectly working CX550M and used a 24 pin to 12 pin adapter,
Put the 970 on, connected everything and used a HDMI to the graphics card and it didn't show video or power on the keyboard
Tried using both power supplies at the same time (550 for the graphics card 350 for the rest) no results
Did a Bios beepcode test and the only i got was a long beep, acording to http://www.bioscentral.com/beepcodes/amibeep.htm
POST has passed all tests
Switched to every ram combination that i got (2+2+4 gig sticks) with no results
Clear cmos using the jumper, and changed the battery with no results
After reading in some forums i read that the system could be ignoring the graphics card so i used a Displayport, VGA, DVI-D but still no video, no power on the keyboard (altrough i noticed that when i slowly plug the keyboard on the usb ports there's a breif moment of energy passing trough but no signal or change)
That's all i can think for now, i tried everything in this guide too: http://www.tomshardware.com/forum/261145-31-perform-steps-posting-post-boot-video-problems
if any of you know something about what could it be of if you need more information i'll be quick to answer
Specs:
CPU: I7-4770
Motherboard: Acer B85H3-AM
RAM: 2x2gb@ 1600 + 1x4gb@ 1600
CPU Cooler: Stock Acer Aspire Veriton Cooler Master 95W
Video Card: Strix - GTX970 - DC2OC - 4GD5
Power Supply: Corsair CX550M
Hard Drive: Seagate 500GB
Operating System: Windows 10 (as far as i know)
Case: Acer Veriton M4630g case (Tested the motherboard outside the case)
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