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symptom of PSU going bad?

post #1 of 4
Thread Starter 
I'm having issues booting up my PC. Once or twice a month, I travel about 2 hrs from where I currently live to my hometown, and I always bring my PC with me. smile.gif. After hooking up all the cords into my PC, it sometimes does not boot up. That is, the power is "on" and everything seems to be getting power but nothing shows up on my monitor. After a few seconds my monitor does not detect any signal from my video card and goes into sleep mode. Sometimes re-seating and reconnecting the 2 6pins connectors to my video card (HD 6950) does the trick. Lately, however, it hasn't been working.

I noticed that my video card fan's spins initially when I boot, but after about 10 seconds they stop spinning. Furthermore, my cpu fan does not spin at boot up and spins only when the video card's fans stops spinning. These are the only two things that I notice. Another odd thing is that once I get passed this initial bootup problem, I will not encounter it again until my next travel, so it's not like I encounter this issue on a daily basis.

Is this a sign that my PSU (Antec earthwatts ea 650) is going bad? Or is it just that traveling 2 hours in the cold is causing this?
post #2 of 4
Do some testing, remove the sidepanel and let the PSU warm up before booting. I've had 2 PSU go poof when booting cold (as in cold, somewhere around 0 degrees)
 
Rebeccas Dator
(14 items)
 
 
CPUMotherboardGraphicsRAM
I5 2500K Asus P8P67 Pro  6950 DCII G.skill 
Hard DriveHard DriveHard DriveHard Drive
Intel 330 Seagate Barracuda WD Green OCZ Vertex 
CoolingOSMonitorKeyboard
H212 W7 21.5 Sidewinder x4/Lenovo with Trackpoint 
PowerCaseMouseMouse Pad
Antec 900w Define r2 MX518 Qpad 1.5mm 
Audio
Edifier R1900TII 2.0 
CPUMotherboardGraphicsRAM
II X4 965 Gigabyte GA-MA785GMT-UD2H Sapphire 5770 DDR3 1600mhz 
Hard DriveOptical DriveCoolingOS
2x 500gb DVD H212 windows 7 
MonitorKeyboardPowerCase
3x Benq 21.5 inch X4 chieftec 650w Define mini 
Mouse
mx518 
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Rebeccas Dator
(14 items)
 
 
CPUMotherboardGraphicsRAM
I5 2500K Asus P8P67 Pro  6950 DCII G.skill 
Hard DriveHard DriveHard DriveHard Drive
Intel 330 Seagate Barracuda WD Green OCZ Vertex 
CoolingOSMonitorKeyboard
H212 W7 21.5 Sidewinder x4/Lenovo with Trackpoint 
PowerCaseMouseMouse Pad
Antec 900w Define r2 MX518 Qpad 1.5mm 
Audio
Edifier R1900TII 2.0 
CPUMotherboardGraphicsRAM
II X4 965 Gigabyte GA-MA785GMT-UD2H Sapphire 5770 DDR3 1600mhz 
Hard DriveOptical DriveCoolingOS
2x 500gb DVD H212 windows 7 
MonitorKeyboardPowerCase
3x Benq 21.5 inch X4 chieftec 650w Define mini 
Mouse
mx518 
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post #3 of 4
Thread Starter 
I got it working again. The old trick of re-seating my graphics card did the trick this time. Like I said before, once I'm able to get it to boot up successfully, the problem goes away--until I move it again, and then the cycle repeats itself, although not every time.

A few weeks ago I had a particularly hard time getting my PC to boot successfully. I tried re-seating my graphics card several times to no avail. Luckily there was another PC in the room and I took out its graphics card; I placed my graphics card into the other PC and placed its graphics card into mine. Both PCs were able to boot successfully at the first attempt, so I thought "BINGO!'' the problem is my PSU since the second graphics card only required 1 6pin and mine required 2. I figured perhaps that one rail/pin had gone bad or the PSU isn't producing sufficient power through both of them simultaneously. I was thorough and tried out both pins on the second graphic card (again, which only needed 1 6pin) and both times I was able to boot successfully. Then, I proceeded to install my graphics card back into my case (which was working successfully on the second PC) and the same problem happened--the graphics card's fans spins initially for 10 seconds then they stop, therefore no signal is going to monitor. That gave me more reason to believe that the problems lies within my PSU because my video card was working successfully just a few seconds ago on the other PC.

I decided to swap video cards again and again, with the same results: second card works in mine, mine works on other PC, my card doesn't work in my PC. I did this a few times until finally the second video card did exactly what mine was doing in my computer: fans spun up then died. Again I swapped in mine, but this time it worked! I powered it back down and booted it up again a few times to make sure it wasn't an accident, but each time it booted successfully.

So, I really can't put a finger on what's causing the issue. Sometimes I get lucky and I don't run into this problem when I travel, other times I do. It could be my PSU or even my PCIex16 slot. Since I only encounter this problem when I have to disconnect everything for a few hours, I'm incline to agree that maybe the circuitry needs to "warm up."
post #4 of 4
I helped myself out of the problem with a 20$ spaceheater, leave it on for a 10 minutes, then let the computer sit for 10 minutes, Haven't had any problem since.
 
Rebeccas Dator
(14 items)
 
 
CPUMotherboardGraphicsRAM
I5 2500K Asus P8P67 Pro  6950 DCII G.skill 
Hard DriveHard DriveHard DriveHard Drive
Intel 330 Seagate Barracuda WD Green OCZ Vertex 
CoolingOSMonitorKeyboard
H212 W7 21.5 Sidewinder x4/Lenovo with Trackpoint 
PowerCaseMouseMouse Pad
Antec 900w Define r2 MX518 Qpad 1.5mm 
Audio
Edifier R1900TII 2.0 
CPUMotherboardGraphicsRAM
II X4 965 Gigabyte GA-MA785GMT-UD2H Sapphire 5770 DDR3 1600mhz 
Hard DriveOptical DriveCoolingOS
2x 500gb DVD H212 windows 7 
MonitorKeyboardPowerCase
3x Benq 21.5 inch X4 chieftec 650w Define mini 
Mouse
mx518 
  hide details  
Reply
 
Rebeccas Dator
(14 items)
 
 
CPUMotherboardGraphicsRAM
I5 2500K Asus P8P67 Pro  6950 DCII G.skill 
Hard DriveHard DriveHard DriveHard Drive
Intel 330 Seagate Barracuda WD Green OCZ Vertex 
CoolingOSMonitorKeyboard
H212 W7 21.5 Sidewinder x4/Lenovo with Trackpoint 
PowerCaseMouseMouse Pad
Antec 900w Define r2 MX518 Qpad 1.5mm 
Audio
Edifier R1900TII 2.0 
CPUMotherboardGraphicsRAM
II X4 965 Gigabyte GA-MA785GMT-UD2H Sapphire 5770 DDR3 1600mhz 
Hard DriveOptical DriveCoolingOS
2x 500gb DVD H212 windows 7 
MonitorKeyboardPowerCase
3x Benq 21.5 inch X4 chieftec 650w Define mini 
Mouse
mx518 
  hide details  
Reply
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