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BFG 7800gt oc 512mb card saying insuficiant power message

post #1 of 5
Thread Starter 
hey guys, i have an arcade rig running mame with a strange issue.

its a p4 prescott 3.4 oc'd to 3.8ghz, 4gb ram, with a bfg 7800gt oc 512mb ram.

recently i get a balloon message saying the video card is running low performance to to low power.
i checked the voltage through the mobo utility and the 12v rail is reporting low 11's could this be a bad power supply? its an older 400w antec thats about 3 years old that was running 24/7.

sometimes even the harddrives wont detect. it only detects again when i shake the case around, lol. originally i thought it was the harddrives , but with the vid card issue, i think it might be the psu, but need opinions before i rip it all apart.

thanks in advance.


frank
monster rig 2
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1000w stock apple power supply mac pro case mighty mouse 
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monster rig 2
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Clovertown dual quad core 3.0ghz mac pro stock ati radeon x1900xt 5gb FB-DIMM 
Hard DriveOSMonitorKeyboard
250gb/500gb win xp pro sp2/os x Westy lvm-37w3 37" lcd 1900x1080 stock wired 
PowerCaseMouse
1000w stock apple power supply mac pro case mighty mouse 
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post #2 of 5
Quote:
Originally Posted by ultravorx
hey guys, i have an arcade rig running mame with a strange issue.

its a p4 prescott 3.4 oc'd to 3.8ghz, 4gb ram, with a bfg 7800gt oc 512mb ram.

recently i get a balloon message saying the video card is running low performance to to low power.
i checked the voltage through the mobo utility and the 12v rail is reporting low 11's could this be a bad power supply? its an older 400w antec thats about 3 years old that was running 24/7.

sometimes even the harddrives wont detect. it only detects again when i shake the case around, lol. originally i thought it was the harddrives , but with the vid card issue, i think it might be the psu, but need opinions before i rip it all apart.

thanks in advance.


frank
Replace it. Low 11's is not good.

EDIT: If there was a "heart" in a PC it would be the PSU. Without regulated electrons...nothing would happen. So, buy a good one and replace it periodically. Also, sometimes, when a PSU dies, it take's some system components with it.
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Sceptre 24" LCD BENQ 3D 24" LCD Logitech G510 Corsair 750W HX professional single rail 
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post #3 of 5
I agree, dont wait around. Not a system you wana loose
Get a trusty power supply like OCZ GameXstream, Or the antecs/ power and cooling range ect.
Smallville
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Smallville
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Windows 8.1 Pro 64-bit Genuine 27" Crossover 27Q S-IPS 1440p Cyborg V7 Corsair HX1000 
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post #4 of 5
Thread Starter 
thanks guys, i replace the power supply and all is well with the machine now!!!! Thanks again!!!



Frank
monster rig 2
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Clovertown dual quad core 3.0ghz mac pro stock ati radeon x1900xt 5gb FB-DIMM 
Hard DriveOSMonitorKeyboard
250gb/500gb win xp pro sp2/os x Westy lvm-37w3 37" lcd 1900x1080 stock wired 
PowerCaseMouse
1000w stock apple power supply mac pro case mighty mouse 
  hide details  
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monster rig 2
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Clovertown dual quad core 3.0ghz mac pro stock ati radeon x1900xt 5gb FB-DIMM 
Hard DriveOSMonitorKeyboard
250gb/500gb win xp pro sp2/os x Westy lvm-37w3 37" lcd 1900x1080 stock wired 
PowerCaseMouse
1000w stock apple power supply mac pro case mighty mouse 
  hide details  
Reply
post #5 of 5
Good to hear you sorted it out.

Just an FYI - If you forget to plug in the graphics power lead, you will get the same message. Thats if the PC even boots.

Happened to my bro's 6600GT.
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2011 ~ Current
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2x 500GB WD Black RAID 0 1TB WD Black Samsung WriteMaster Prolima Tech Megahalems 
OSMonitorKeyboardPower
Windows 7 Home Premium ViewSonic 22" VX2260wm Saitek Eclipse II Seasonic X-660 
CaseMouseMouse PadAudio
ThermalTake Armor Silver Logitech G5 Sharkoon Asus Xonar D1 
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