No video coming from PC...

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dmoney1980

Platinum Member
Jan 17, 2008
2,471
38
91
Hello ATOT!

My sister's computer may be biting the dust. She has an older AM2 board and Athlon dual core cpu. She lost video so I took the pc home for testing. So far I did the following....

Installed a Radeon 5450 card into the pcie slot, still no video.

Swapped the RAM from slots 1/2 to 3/4

unplugged / plugged all power / sata cables

tried different video cables

The weird thing is that the pc turns on and all of the fans run, I even get power from one of the usb ports for my mouse, however my keyboard doesn't light up.

Not sure what else to do- thoughts?
 
M

meeshu

Member
Jun 9, 2003
199
1
81
Most likely a faulty motherboard.

But to check this can you try another PSU? If the computer works after PSU replacement then the original PSU is faulty. If the computer still doesn't work properly after PSU replacement then the motherboard is almost certainly faulty.

It's possible that dust/dirt has accumulated on the motherboard and may cause problems. If so, it may be worthwhile trying to clean the motherboard with compressed air and try running the computer again.
 
PhIlLy ChEeSe

PhIlLy ChEeSe

Senior member
Apr 1, 2013
962
0
0
Have you tried a full Cmos Clearing? Remove the battery over night move the cmos jumper to clear (on pins 2+3), in the AM replace the jumper(pins 1+2) and battery.

Why do people mess with the memory first thing? lol I don't get it, I have never had a stick of memory fail on me! Nor do I run mem test. Meeshu is probably correct, dust causes over heating and if when you opened it up if there were a lot of dust bunnies in there then the unit maybe toast.
I use a clean paint brush with long bristles to clean the mother board, if its badly dirty I have even washed them in the dish washer in gentle cycle. Then hang dry for a day and replace.
 
VirtualLarry

VirtualLarry

No Lifer
Aug 25, 2001
56,587
10,225
126
I've seen plenty of "dead" big-box branded OEM AM2 rigs with problems. Chances are, if a new PSU doesn't cure it, that you need a new mobo, and if so, most likely better to replace the whole thing at this point. Sorry to say.

Edit: The integrated video-out is part of the main system chipset (northbridge), and it controls many other functions (like the PCI-E slots). So if it became caked with dust and overheated and eventually fried itself, then the mobo is toast.
 
Last edited:
Charlie98

Charlie98

Diamond Member
Nov 6, 2011
6,298
64
91
VirtualLarry said:
Edit: The integrated video-out is part of the main system chipset (northbridge), and it controls many other functions (like the PCI-E slots). So if it became caked with dust and overheated and eventually fried itself, then the mobo is toast.
Click to expand...

I wondered... I don't know enough about the AMD boards to know how the on-board video works. That would make sense, that the OP's discreet card didn't work, either.
 
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dmoney1980

Platinum Member
Jan 17, 2008
2,471
38
91
I'd like to thank everyone for their input! The pc was using the integrated graphics, which is why I tried a 5450 radeon but still no video. The pc had a little bit of dust but nothing that would cause problems. I'm not able to test the psu since I don't have an extra one at this moment, however everything seems to fire up, but you never know. I hope the chipset isn't fried because that means the whole thing is worthless and she would need a new mobo
 
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