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Bad PSU - Suggestions?

post #1 of 18
Thread Starter 
Hello everyone,

From a recent post in the Motherboard thread I have recently discovered that my PSU has most likely gone bad on me, as my -12V fluctuates between -8 and -5 volts, while my +5V and -5V are stable at 4.05V and 3.6V respectively.

I've been running like this unaware for months, thinking the problem was with my RAM.

Can anyone suggest a suitable replacement PSU on the cheap side for my system?

Thanks!
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post #2 of 18
How are you measuring this?

Voltage or multimeter?

Because your computer just wouldn't work at all with -5V...

But, I'd get something like a Corsair VX550, Antec TruePower New 550W/650W/750W, or if you wanted something a bit cheaper, an OCZ GameXstream 600W/700W or a StealthXstream 600/700W.
    
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post #3 of 18
Thread Starter 
Quote:
Originally Posted by meticadpa View Post
How are you measuring this?

Voltage or multimeter?

Because your computer just wouldn't work at all with -5V...

But, I'd get something like a Corsair VX550, Antec TruePower New 550W/650W/750W, or if you wanted something a bit cheaper, an OCZ GameXstream 600W/700W or a StealthXstream 600/700W.
Checking voltages using Speedfan, and confirmed the +5V with a multimeter.
955
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955
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post #4 of 18
What's your budget? That's the most important factor.

But, any of these units would suit you fine:
Rosewill RG530-S12
OCZ ModXtreme Pro 500watt
OCZ StealthXtreme 600watt
OCZ Z-Series 550watt
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Samsung Spinpoint F3 1TB Samsung Spinpoint F3 1TB Western Digital Green 2TB Samsung Spinpoint M4 500GB 
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AMD A10-A5800K ASRock FM2A85X-ITX Radeon HD7770 1GB 2x8GB 1866mhz C9 
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post #5 of 18
Quote:
Originally Posted by Randomsanity View Post
Checking voltages using Speedfan, and confirmed the +5V with a multimeter.
Check the rest of the rails, because your system wouldn't work if your -12V rail was at 5V.

http://www.clunk.org.uk/forums/guide...ing-guide.html

that's a guide on how to do it.
    
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Samson Servo 120A Amplifier 
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CPUMotherboardGraphicsRAM
Core i7 930 at 4.5GHz, HT on EVGA X58 SLI LE ASUS 7970 TOP Crucial Ballistix Tracers, 6GB, 1720MHz, 8-8-8-24 
Hard DriveOptical DriveOSMonitor
120GB Force 3, 2 Samsung F3 500GB in RAID 0, WD... Sony  Windows 7 64 bit LG W2452TX - 1920 x 1200 
KeyboardPowerCaseMouse
Razer Black Widow Antec TruePower New 650W (SeaSonic) Clemens 004 Logitech G500 
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Samson Servo 120A Amplifier 
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post #6 of 18
I would say any one of these

Link
Link
Link
Link

hope those help ya!! Cheers!
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post #7 of 18
Quote:
Originally Posted by MonsterRP View Post
I would say any one of these

Link
Link
Link
Link

hope those help ya!! Cheers!
The Cooler Master & BFG units are not as good as previously mentioned ones in rated 12v power.
Test Bed
(24 items)
 
TTTbox
(15 items)
 
 
CPUMotherboardGraphicsRAM
Core i5 3570K  Biostar TZ774XE Power Color AX5770 1GB 4x4GB 1866Mhz 9-10-9-27-2T 
Hard DriveHard DriveHard DriveHard Drive
Samsung Spinpoint F3 1TB Samsung Spinpoint F3 1TB Western Digital Green 2TB Samsung Spinpoint M4 500GB 
Hard DriveOptical DriveCoolingOS
Intel X-25M G2 80GB Lite-On BluRay Drive Arctic Cooling Freezer 13 Pro Windows 7 Ultimate 
MonitorKeyboardPowerCase
Dell U2212HM Deck Legend Frost Tactile Silverstone Strider Plus 750w Custom Acrylic Test Bed 
MouseMouse PadAudioAudio
Logitech G500 Cooler Master Storm Tactics FPS Beyer Dynamics DT-990 600ohm Samson MediaOne 3A 
AudioAudioOtherOther
FiiO E09k QOGIR FiiO E17 ALPEN Microsoft Lifecam Studio Blue Yeti Pro Microphone 
CPUMotherboardGraphicsRAM
AMD A10-A5800K ASRock FM2A85X-ITX Radeon HD7770 1GB 2x8GB 1866mhz C9 
Hard DriveHard DriveOptical DriveCooling
SanDisk Ultra Plus 128GB 2TB 5400 RPM  24x DVD Drive Noctua L9A 
OSMonitorKeyboardPower
Windows 7 Home Premium 32" IPS TV Logitech K400 Seasonic G360 
CaseMouseAudio
Cooler Master Elite 120 Advanced Logitech K400 Trackpad Custom 2.1 Home Theater Setup 
  hide details  
Reply
Test Bed
(24 items)
 
TTTbox
(15 items)
 
 
CPUMotherboardGraphicsRAM
Core i5 3570K  Biostar TZ774XE Power Color AX5770 1GB 4x4GB 1866Mhz 9-10-9-27-2T 
Hard DriveHard DriveHard DriveHard Drive
Samsung Spinpoint F3 1TB Samsung Spinpoint F3 1TB Western Digital Green 2TB Samsung Spinpoint M4 500GB 
Hard DriveOptical DriveCoolingOS
Intel X-25M G2 80GB Lite-On BluRay Drive Arctic Cooling Freezer 13 Pro Windows 7 Ultimate 
MonitorKeyboardPowerCase
Dell U2212HM Deck Legend Frost Tactile Silverstone Strider Plus 750w Custom Acrylic Test Bed 
MouseMouse PadAudioAudio
Logitech G500 Cooler Master Storm Tactics FPS Beyer Dynamics DT-990 600ohm Samson MediaOne 3A 
AudioAudioOtherOther
FiiO E09k QOGIR FiiO E17 ALPEN Microsoft Lifecam Studio Blue Yeti Pro Microphone 
CPUMotherboardGraphicsRAM
AMD A10-A5800K ASRock FM2A85X-ITX Radeon HD7770 1GB 2x8GB 1866mhz C9 
Hard DriveHard DriveOptical DriveCooling
SanDisk Ultra Plus 128GB 2TB 5400 RPM  24x DVD Drive Noctua L9A 
OSMonitorKeyboardPower
Windows 7 Home Premium 32" IPS TV Logitech K400 Seasonic G360 
CaseMouseAudio
Cooler Master Elite 120 Advanced Logitech K400 Trackpad Custom 2.1 Home Theater Setup 
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post #8 of 18
Thread Starter 
Quote:
Originally Posted by Tator Tot View Post
What's your budget? That's the most important factor.

But, any of these units would suit you fine:
Rosewill RG530-S12
OCZ ModXtreme Pro 500watt
OCZ StealthXtreme 600watt
OCZ Z-Series 550watt
I'm trying to keep it around $100. Do you have any experience with the aforementioned OCZ GameXStream 700W Power Supply? It is currently $99 with a $20 mail in rebate. My local store does not carry the Rosewill and only has the 500W version of the StealthXtreme.
955
(13 items)
 
  
CPUMotherboardGraphicsRAM
X4 955 BE GA-MA790XT-UD4P BFG 8800GTX OC2 OCZ Platinum XTC 
OSMonitorMouse
Windows 7 Ultimate x64 Viewsonic VX922 Logitech G5 
  hide details  
Reply
955
(13 items)
 
  
CPUMotherboardGraphicsRAM
X4 955 BE GA-MA790XT-UD4P BFG 8800GTX OC2 OCZ Platinum XTC 
OSMonitorMouse
Windows 7 Ultimate x64 Viewsonic VX922 Logitech G5 
  hide details  
Reply
post #9 of 18
Thread Starter 
Quote:
Originally Posted by meticadpa View Post
Check the rest of the rails, because your system wouldn't work if your -12V rail was at 5V.

http://www.clunk.org.uk/forums/guide...ing-guide.html

that's a guide on how to do it.
My -12V rail is reading most consistently at -8V.
955
(13 items)
 
  
CPUMotherboardGraphicsRAM
X4 955 BE GA-MA790XT-UD4P BFG 8800GTX OC2 OCZ Platinum XTC 
OSMonitorMouse
Windows 7 Ultimate x64 Viewsonic VX922 Logitech G5 
  hide details  
Reply
955
(13 items)
 
  
CPUMotherboardGraphicsRAM
X4 955 BE GA-MA790XT-UD4P BFG 8800GTX OC2 OCZ Platinum XTC 
OSMonitorMouse
Windows 7 Ultimate x64 Viewsonic VX922 Logitech G5 
  hide details  
Reply
post #10 of 18
Quote:
Originally Posted by Randomsanity View Post
I'm trying to keep it around $100. Do you have any experience with the aforementioned OCZ GameXStream 700W Power Supply? It is currently $99 with a $20 mail in rebate. My local store does not carry the Rosewill and only has the 500W version of the StealthXtreme.
A 500watt SXT would work.

The 700watt GXS only has ~550watts on the 12v rail, which isn't a whole lot. It will work. But it's rather over priced.

Does your local store have any other units in stock?
Test Bed
(24 items)
 
TTTbox
(15 items)
 
 
CPUMotherboardGraphicsRAM
Core i5 3570K  Biostar TZ774XE Power Color AX5770 1GB 4x4GB 1866Mhz 9-10-9-27-2T 
Hard DriveHard DriveHard DriveHard Drive
Samsung Spinpoint F3 1TB Samsung Spinpoint F3 1TB Western Digital Green 2TB Samsung Spinpoint M4 500GB 
Hard DriveOptical DriveCoolingOS
Intel X-25M G2 80GB Lite-On BluRay Drive Arctic Cooling Freezer 13 Pro Windows 7 Ultimate 
MonitorKeyboardPowerCase
Dell U2212HM Deck Legend Frost Tactile Silverstone Strider Plus 750w Custom Acrylic Test Bed 
MouseMouse PadAudioAudio
Logitech G500 Cooler Master Storm Tactics FPS Beyer Dynamics DT-990 600ohm Samson MediaOne 3A 
AudioAudioOtherOther
FiiO E09k QOGIR FiiO E17 ALPEN Microsoft Lifecam Studio Blue Yeti Pro Microphone 
CPUMotherboardGraphicsRAM
AMD A10-A5800K ASRock FM2A85X-ITX Radeon HD7770 1GB 2x8GB 1866mhz C9 
Hard DriveHard DriveOptical DriveCooling
SanDisk Ultra Plus 128GB 2TB 5400 RPM  24x DVD Drive Noctua L9A 
OSMonitorKeyboardPower
Windows 7 Home Premium 32" IPS TV Logitech K400 Seasonic G360 
CaseMouseAudio
Cooler Master Elite 120 Advanced Logitech K400 Trackpad Custom 2.1 Home Theater Setup 
  hide details  
Reply
Test Bed
(24 items)
 
TTTbox
(15 items)
 
 
CPUMotherboardGraphicsRAM
Core i5 3570K  Biostar TZ774XE Power Color AX5770 1GB 4x4GB 1866Mhz 9-10-9-27-2T 
Hard DriveHard DriveHard DriveHard Drive
Samsung Spinpoint F3 1TB Samsung Spinpoint F3 1TB Western Digital Green 2TB Samsung Spinpoint M4 500GB 
Hard DriveOptical DriveCoolingOS
Intel X-25M G2 80GB Lite-On BluRay Drive Arctic Cooling Freezer 13 Pro Windows 7 Ultimate 
MonitorKeyboardPowerCase
Dell U2212HM Deck Legend Frost Tactile Silverstone Strider Plus 750w Custom Acrylic Test Bed 
MouseMouse PadAudioAudio
Logitech G500 Cooler Master Storm Tactics FPS Beyer Dynamics DT-990 600ohm Samson MediaOne 3A 
AudioAudioOtherOther
FiiO E09k QOGIR FiiO E17 ALPEN Microsoft Lifecam Studio Blue Yeti Pro Microphone 
CPUMotherboardGraphicsRAM
AMD A10-A5800K ASRock FM2A85X-ITX Radeon HD7770 1GB 2x8GB 1866mhz C9 
Hard DriveHard DriveOptical DriveCooling
SanDisk Ultra Plus 128GB 2TB 5400 RPM  24x DVD Drive Noctua L9A 
OSMonitorKeyboardPower
Windows 7 Home Premium 32" IPS TV Logitech K400 Seasonic G360 
CaseMouseAudio
Cooler Master Elite 120 Advanced Logitech K400 Trackpad Custom 2.1 Home Theater Setup 
  hide details  
Reply
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