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help debug *sudden voltage change* problem

post #1 of 6
Thread Starter 
the past couple of days, i have been experiencing random bsod's for no apparent reason. i first thought ram since i have crucial ram and have had several problems with bad modules, but my ram has passed 8 hours of memtest. then i figured hard drive, but smart comes back clean. so i figured cpu clock/voltage, but the cpu passes 8 hours of prime and occt. so now i'm down to psu, motherboard, processor and video.

the error from the last random reboot was:
The previous system shutdown at 10:50:37 AM on 6/8/2008 was unexpected.

the log before that was:
Pause Function is Off

other errors i have in my log is:
Performance power management features on processor 1 are disabled due to a firmware problem. Check with the computer manufacturer for updated firmware.

and

Performance power management features on processor 0 are disabled due to a firmware problem. Check with the computer manufacturer for updated firmware.

i have thermal management disabled in BIOS. cpu is at idle during these. could it be a sleep/wake error in vista? i have power management set to performance with sleep/hibernation disabled.

temperatures here have shot up into the 90's. but all of my system temps are still low. only change of 1-2º at idle.

system is my sig rig running vista ultimate 64bit
 
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CPUMotherboardGraphicsRAM
i5 2500k MSI Z77A-GD65 MSI GTX 560 Ti 16GB Corsair Vengence DDR3 1600 
Hard DriveHard DriveHard DriveHard Drive
90GB Corsair Force Series 3 Western Digital Green 1TB Samsung F3 1TB Microcenter 64GB SSD 
Optical DriveCoolingCoolingCooling
Samsung 18x SATA DVD Burner Corsair H100i 4 x Corsair AC120 fans 2 x Corsair SP120 fans 
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Corsair HX750 Corsair Carbide 500R Logitech MX518 
CPUMotherboardGraphicsRAM
AMD A6-3650 Biostar A75M Radeon 6540 G.Skill 
Hard DriveHard DriveHard DriveHard Drive
OCZ Agility 3 60GB Samsung 1.5TB WD 640GB Blue Microcenter 64GB SSD 
CoolingOSMonitorKeyboard
Stock Windows 7 32 Bit Winbook 37" HDTV Lenovo n5902a / Logitech Harmony 650 / FLiRC 
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post #2 of 6
How long have you had the PSU? Could you switch it out with another one to test. I hate random BSODs but a lot of the time it is the power supply.
    
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post #3 of 6
Thread Starter 
the psu is about 2 years old. i don't have another one that i could use with this system. i'll pickup a psu tester.
 
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CPUMotherboardGraphicsRAM
i5 2500k MSI Z77A-GD65 MSI GTX 560 Ti 16GB Corsair Vengence DDR3 1600 
Hard DriveHard DriveHard DriveHard Drive
90GB Corsair Force Series 3 Western Digital Green 1TB Samsung F3 1TB Microcenter 64GB SSD 
Optical DriveCoolingCoolingCooling
Samsung 18x SATA DVD Burner Corsair H100i 4 x Corsair AC120 fans 2 x Corsair SP120 fans 
OSOSMonitorKeyboard
Windows 8 Pro Ubuntu 12.04 19" Acer Logitech G15 
PowerCaseMouse
Corsair HX750 Corsair Carbide 500R Logitech MX518 
CPUMotherboardGraphicsRAM
AMD A6-3650 Biostar A75M Radeon 6540 G.Skill 
Hard DriveHard DriveHard DriveHard Drive
OCZ Agility 3 60GB Samsung 1.5TB WD 640GB Blue Microcenter 64GB SSD 
CoolingOSMonitorKeyboard
Stock Windows 7 32 Bit Winbook 37" HDTV Lenovo n5902a / Logitech Harmony 650 / FLiRC 
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HTPC
(16 items)
 
 
CPUMotherboardGraphicsRAM
i5 2500k MSI Z77A-GD65 MSI GTX 560 Ti 16GB Corsair Vengence DDR3 1600 
Hard DriveHard DriveHard DriveHard Drive
90GB Corsair Force Series 3 Western Digital Green 1TB Samsung F3 1TB Microcenter 64GB SSD 
Optical DriveCoolingCoolingCooling
Samsung 18x SATA DVD Burner Corsair H100i 4 x Corsair AC120 fans 2 x Corsair SP120 fans 
OSOSMonitorKeyboard
Windows 8 Pro Ubuntu 12.04 19" Acer Logitech G15 
PowerCaseMouse
Corsair HX750 Corsair Carbide 500R Logitech MX518 
CPUMotherboardGraphicsRAM
AMD A6-3650 Biostar A75M Radeon 6540 G.Skill 
Hard DriveHard DriveHard DriveHard Drive
OCZ Agility 3 60GB Samsung 1.5TB WD 640GB Blue Microcenter 64GB SSD 
CoolingOSMonitorKeyboard
Stock Windows 7 32 Bit Winbook 37" HDTV Lenovo n5902a / Logitech Harmony 650 / FLiRC 
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post #4 of 6
Thread Starter 
ok, so now sometimes when it crashes and restarts, i get a CMOS checksum error. i tried reflashing BIOS, but it still gets the errors. i ran memtest again for another 8 hours and it passed. so i'm guessing it's the motherboard. the cmos battery is putting out 3.28V, so it's not the battery. i'm still going to get a psu tester and test my psu. the cmos checksum errors are either ram or motherboard related, but i want to make sure that it definitely is not the psu.
 
HTPC
(16 items)
 
 
CPUMotherboardGraphicsRAM
i5 2500k MSI Z77A-GD65 MSI GTX 560 Ti 16GB Corsair Vengence DDR3 1600 
Hard DriveHard DriveHard DriveHard Drive
90GB Corsair Force Series 3 Western Digital Green 1TB Samsung F3 1TB Microcenter 64GB SSD 
Optical DriveCoolingCoolingCooling
Samsung 18x SATA DVD Burner Corsair H100i 4 x Corsair AC120 fans 2 x Corsair SP120 fans 
OSOSMonitorKeyboard
Windows 8 Pro Ubuntu 12.04 19" Acer Logitech G15 
PowerCaseMouse
Corsair HX750 Corsair Carbide 500R Logitech MX518 
CPUMotherboardGraphicsRAM
AMD A6-3650 Biostar A75M Radeon 6540 G.Skill 
Hard DriveHard DriveHard DriveHard Drive
OCZ Agility 3 60GB Samsung 1.5TB WD 640GB Blue Microcenter 64GB SSD 
CoolingOSMonitorKeyboard
Stock Windows 7 32 Bit Winbook 37" HDTV Lenovo n5902a / Logitech Harmony 650 / FLiRC 
PowerCaseMouseAudio
OCZ ModXstream 700w nMediaPC 6000B  none Phillips HTS3555 
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HTPC
(16 items)
 
 
CPUMotherboardGraphicsRAM
i5 2500k MSI Z77A-GD65 MSI GTX 560 Ti 16GB Corsair Vengence DDR3 1600 
Hard DriveHard DriveHard DriveHard Drive
90GB Corsair Force Series 3 Western Digital Green 1TB Samsung F3 1TB Microcenter 64GB SSD 
Optical DriveCoolingCoolingCooling
Samsung 18x SATA DVD Burner Corsair H100i 4 x Corsair AC120 fans 2 x Corsair SP120 fans 
OSOSMonitorKeyboard
Windows 8 Pro Ubuntu 12.04 19" Acer Logitech G15 
PowerCaseMouse
Corsair HX750 Corsair Carbide 500R Logitech MX518 
CPUMotherboardGraphicsRAM
AMD A6-3650 Biostar A75M Radeon 6540 G.Skill 
Hard DriveHard DriveHard DriveHard Drive
OCZ Agility 3 60GB Samsung 1.5TB WD 640GB Blue Microcenter 64GB SSD 
CoolingOSMonitorKeyboard
Stock Windows 7 32 Bit Winbook 37" HDTV Lenovo n5902a / Logitech Harmony 650 / FLiRC 
PowerCaseMouseAudio
OCZ ModXstream 700w nMediaPC 6000B  none Phillips HTS3555 
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post #5 of 6
Thread Starter 
ok, this is really strange...

now when i check my cpu voltage, it's a lot lower than it needs to be. i used to set the voltage at +37.5mV, and it would run at 1.26V (CPUz, 1.22 BIOS). now it was at 1.15V, which is too low for my clock. so i set the vcore to +67.5mV, CPUz shows 1.26, BIOS reports 1.26. however, i spot checked the voltage in CPUz randomly last night at idle, and it said 1.29V. so i rebooted, went into BIOS, and it said 1.26. went into windows, check cpuz, and it said 1.26V. so for giggles, i lowered my RAM voltage, previously, i couldn't get it to post at my clocks without the VDIMM set to 2.2V. so i lowered it to 2.1V, and it booted fine. my system idles at about 25ºC, loads around 38-40º, so i'm ok on temps. it passes orthos, so it's stable. i'm just not sure about the voltage changes. i ordered a new motherboard that should be here today, but i dont want to use it if my motherboard is fine. but i'm not sure if my motherboard is ok with the sudden change in voltage.
 
HTPC
(16 items)
 
 
CPUMotherboardGraphicsRAM
i5 2500k MSI Z77A-GD65 MSI GTX 560 Ti 16GB Corsair Vengence DDR3 1600 
Hard DriveHard DriveHard DriveHard Drive
90GB Corsair Force Series 3 Western Digital Green 1TB Samsung F3 1TB Microcenter 64GB SSD 
Optical DriveCoolingCoolingCooling
Samsung 18x SATA DVD Burner Corsair H100i 4 x Corsair AC120 fans 2 x Corsair SP120 fans 
OSOSMonitorKeyboard
Windows 8 Pro Ubuntu 12.04 19" Acer Logitech G15 
PowerCaseMouse
Corsair HX750 Corsair Carbide 500R Logitech MX518 
CPUMotherboardGraphicsRAM
AMD A6-3650 Biostar A75M Radeon 6540 G.Skill 
Hard DriveHard DriveHard DriveHard Drive
OCZ Agility 3 60GB Samsung 1.5TB WD 640GB Blue Microcenter 64GB SSD 
CoolingOSMonitorKeyboard
Stock Windows 7 32 Bit Winbook 37" HDTV Lenovo n5902a / Logitech Harmony 650 / FLiRC 
PowerCaseMouseAudio
OCZ ModXstream 700w nMediaPC 6000B  none Phillips HTS3555 
  hide details  
Reply
 
HTPC
(16 items)
 
 
CPUMotherboardGraphicsRAM
i5 2500k MSI Z77A-GD65 MSI GTX 560 Ti 16GB Corsair Vengence DDR3 1600 
Hard DriveHard DriveHard DriveHard Drive
90GB Corsair Force Series 3 Western Digital Green 1TB Samsung F3 1TB Microcenter 64GB SSD 
Optical DriveCoolingCoolingCooling
Samsung 18x SATA DVD Burner Corsair H100i 4 x Corsair AC120 fans 2 x Corsair SP120 fans 
OSOSMonitorKeyboard
Windows 8 Pro Ubuntu 12.04 19" Acer Logitech G15 
PowerCaseMouse
Corsair HX750 Corsair Carbide 500R Logitech MX518 
CPUMotherboardGraphicsRAM
AMD A6-3650 Biostar A75M Radeon 6540 G.Skill 
Hard DriveHard DriveHard DriveHard Drive
OCZ Agility 3 60GB Samsung 1.5TB WD 640GB Blue Microcenter 64GB SSD 
CoolingOSMonitorKeyboard
Stock Windows 7 32 Bit Winbook 37" HDTV Lenovo n5902a / Logitech Harmony 650 / FLiRC 
PowerCaseMouseAudio
OCZ ModXstream 700w nMediaPC 6000B  none Phillips HTS3555 
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post #6 of 6
Thread Starter 
bump, anyone have any ideas? OCCT voltage recordings show the psu to what i believe as being ok (less than .02% ripple).
 
HTPC
(16 items)
 
 
CPUMotherboardGraphicsRAM
i5 2500k MSI Z77A-GD65 MSI GTX 560 Ti 16GB Corsair Vengence DDR3 1600 
Hard DriveHard DriveHard DriveHard Drive
90GB Corsair Force Series 3 Western Digital Green 1TB Samsung F3 1TB Microcenter 64GB SSD 
Optical DriveCoolingCoolingCooling
Samsung 18x SATA DVD Burner Corsair H100i 4 x Corsair AC120 fans 2 x Corsair SP120 fans 
OSOSMonitorKeyboard
Windows 8 Pro Ubuntu 12.04 19" Acer Logitech G15 
PowerCaseMouse
Corsair HX750 Corsair Carbide 500R Logitech MX518 
CPUMotherboardGraphicsRAM
AMD A6-3650 Biostar A75M Radeon 6540 G.Skill 
Hard DriveHard DriveHard DriveHard Drive
OCZ Agility 3 60GB Samsung 1.5TB WD 640GB Blue Microcenter 64GB SSD 
CoolingOSMonitorKeyboard
Stock Windows 7 32 Bit Winbook 37" HDTV Lenovo n5902a / Logitech Harmony 650 / FLiRC 
PowerCaseMouseAudio
OCZ ModXstream 700w nMediaPC 6000B  none Phillips HTS3555 
  hide details  
Reply
 
HTPC
(16 items)
 
 
CPUMotherboardGraphicsRAM
i5 2500k MSI Z77A-GD65 MSI GTX 560 Ti 16GB Corsair Vengence DDR3 1600 
Hard DriveHard DriveHard DriveHard Drive
90GB Corsair Force Series 3 Western Digital Green 1TB Samsung F3 1TB Microcenter 64GB SSD 
Optical DriveCoolingCoolingCooling
Samsung 18x SATA DVD Burner Corsair H100i 4 x Corsair AC120 fans 2 x Corsair SP120 fans 
OSOSMonitorKeyboard
Windows 8 Pro Ubuntu 12.04 19" Acer Logitech G15 
PowerCaseMouse
Corsair HX750 Corsair Carbide 500R Logitech MX518 
CPUMotherboardGraphicsRAM
AMD A6-3650 Biostar A75M Radeon 6540 G.Skill 
Hard DriveHard DriveHard DriveHard Drive
OCZ Agility 3 60GB Samsung 1.5TB WD 640GB Blue Microcenter 64GB SSD 
CoolingOSMonitorKeyboard
Stock Windows 7 32 Bit Winbook 37" HDTV Lenovo n5902a / Logitech Harmony 650 / FLiRC 
PowerCaseMouseAudio
OCZ ModXstream 700w nMediaPC 6000B  none Phillips HTS3555 
  hide details  
Reply
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