Hey guys,
I built a computer for a coworker about two months ago.
The specs:
Biostar H77MU3
i3 2100
2x4GB Gskill Sniper DDR3 1600 1.5v
Antec TruePower Trio 550w (2006, A1, reused from his previous computer)
120gb ssd
The motherboard has integrated video, so no gpu. It's a very basic computer obviously.
Now, it was working fine like this for the past two months approximately. He brought his computer back to me because I forgot to backup the Outlook data file with their archived emails (who uses outlook for personal email?! GMAIL, come on!). Now my task is to try and recover the .pst file after the drive has been formatted.
Anyhow, I plugged the computer in and it wouldn't post.
Tried clearing the bios, no post. Disconnected 24-pin connector, shorted green to black and the psu started right up. During the many times I unplugged the 24pin connector and reconnecting (a dozen perhaps), I got it to post twice. So it did work, just not reliably. One time it posted when the mobo was in his antec 300 case, and another time it posted when the mobo was out of the case sitting on an old Ratpadz.
Next, I tried an Antec NeoPower 650w that I was using in my test bench with a new ECS H61 motherboard with another i3. The NeoPower 650w works fine, I've used it for testing many times.
Still, no POST. The 650w psu instead made a quiet clicking sound. I didn't notice it last night, but just noticed it tonight. I tried his Antec 550w psu with my new ECS H61 motherboard. It booted right up.
At this point I was quite perplexed and confused. I tried different RAM, I uninstalled his Biostar H77 board from the case and tried posting with it sitting on an old Ratpadz (not the best non-conductive surface but it works fine). I tried just shorting the jumper with no case power switch. The Biostar H77 would not work reliably.
After meddling with it last night for an hour and another hour tonight, I finally tested it with a third psu, this time an Antec Neo ECO 520C (the label looks like this, but the background color for the vertical 520w is brown, not red as shown in the newegg pic). The Biostar H77 board now boots consistently.
So what is wrong? This is not a riddle, I am seriously confused. Why does the Truepower Trio 550w work fine with an H61 board but not this Biostar H77 board? It used to work just fine with the H77 board before transportation.
Why won't the Biostar H77 board work with the Neopower 650w?
Why does the Biostar H77 board work with the Neo Eco 520C but not the other two psus?
*edit* I also tested some new RAM. Samsung 1.35v, a single 4GB stick. The RAM works fine with the Neo Eco 520w psu. I left the computer on all night with the Samsung RAM last night after I posted this thread.
I built a computer for a coworker about two months ago.
The specs:
Biostar H77MU3
i3 2100
2x4GB Gskill Sniper DDR3 1600 1.5v
Antec TruePower Trio 550w (2006, A1, reused from his previous computer)
120gb ssd
The motherboard has integrated video, so no gpu. It's a very basic computer obviously.
Now, it was working fine like this for the past two months approximately. He brought his computer back to me because I forgot to backup the Outlook data file with their archived emails (who uses outlook for personal email?! GMAIL, come on!). Now my task is to try and recover the .pst file after the drive has been formatted.
Anyhow, I plugged the computer in and it wouldn't post.
Tried clearing the bios, no post. Disconnected 24-pin connector, shorted green to black and the psu started right up. During the many times I unplugged the 24pin connector and reconnecting (a dozen perhaps), I got it to post twice. So it did work, just not reliably. One time it posted when the mobo was in his antec 300 case, and another time it posted when the mobo was out of the case sitting on an old Ratpadz.
Next, I tried an Antec NeoPower 650w that I was using in my test bench with a new ECS H61 motherboard with another i3. The NeoPower 650w works fine, I've used it for testing many times.
Still, no POST. The 650w psu instead made a quiet clicking sound. I didn't notice it last night, but just noticed it tonight. I tried his Antec 550w psu with my new ECS H61 motherboard. It booted right up.
At this point I was quite perplexed and confused. I tried different RAM, I uninstalled his Biostar H77 board from the case and tried posting with it sitting on an old Ratpadz (not the best non-conductive surface but it works fine). I tried just shorting the jumper with no case power switch. The Biostar H77 would not work reliably.
After meddling with it last night for an hour and another hour tonight, I finally tested it with a third psu, this time an Antec Neo ECO 520C (the label looks like this, but the background color for the vertical 520w is brown, not red as shown in the newegg pic). The Biostar H77 board now boots consistently.
So what is wrong? This is not a riddle, I am seriously confused. Why does the Truepower Trio 550w work fine with an H61 board but not this Biostar H77 board? It used to work just fine with the H77 board before transportation.
Why won't the Biostar H77 board work with the Neopower 650w?
Why does the Biostar H77 board work with the Neo Eco 520C but not the other two psus?
*edit* I also tested some new RAM. Samsung 1.35v, a single 4GB stick. The RAM works fine with the Neo Eco 520w psu. I left the computer on all night with the Samsung RAM last night after I posted this thread.
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