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Computer just stopped working

post #1 of 9
Thread Starter 
Hi All,

I'm putting this here because I'm not sure where else to put it, if it's in the wrong place, please feel free to move it to somewhere more appropriate .

My partners computer has stopped working, apparently with no discernible cause...

Initially, I suspected the hard drive was a fault, but when I tried to boot up the computer, it didn't even POST, let alone show any messages that would indicate a HDD failure. Later on I put the HDD into another computer as a slave and it worked fine, so it's definitely not the HDD...

Before I opened up the computer, when it was turned on, it didn't beep at all (not even once, like it usually does when its first turned on...) all the fans span up, but both the HDD light and the power light on the front of the case remained on permanently... The power light should (of course) be on constantly, but the HDD light should flicker a bit as the HDD is being used... It didn't do this, it just stayed on permanently, with no sign that the HDD was actually functioning at all...

After I removed the HDD the HDD light still comes on and stays on permanently... It is only when I remove the HDD and unplug both the optical drives that the HDD light will not illuminate...

Though out all of this, the computer does not activate the monitor and the monitor remains blank. I know its not the video card because the monitor remains blank with both an AGP card and on-board graphics and it's unlikely that both have stopped working together at the same time... It's not the monitor either because I have tested that and it works fine.

The computer has been working OK for a long time now, although it has occasionally crashed or frozen up for no apparent reason, but these crashes/freezes have been simply resolved by a reboot and haven't returned very often....

It could be a multiple of things I suppose, but so far (and for no good reason) I am suspecting the motherboard or CPU...

Any help is appreciated .

Highly-Annoyed

My partners PC Spec:
------------------------------------------------------------------------
CPU: 3.2GHz P4 Prescott (o/c'ed to 3.4GHz)
RAM: 512MB Generic stuff (well within it's o/c'ing tolerance level though)
PSU: "EZ Cool" 600W with 22Amps on the +12v
MB: ASRock P4S61
------------------------------------------------------------------------
    
CPUMotherboardGraphicsRAM
Q6600 @ 3.6GHz (400x9) Gigabyte EP45-DS3P HD4850 512MB 630/1000 4GB DDR2-800 OCZ Gold Rv.2 
Hard DriveOptical DriveOSMonitor
700GB SATA300 Storage Sony: 1x DVDROM, 1x DVDRW XP Home SP3 17" LCD (Black/Silver) 
KeyboardPowerCaseMouse
Dell Quietkey Spacesaver Corsair TX 750W Antec SLK3700-BQE (Black) Logitech RX250 USB 
Mouse Pad
Black Generic 
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CPUMotherboardGraphicsRAM
Q6600 @ 3.6GHz (400x9) Gigabyte EP45-DS3P HD4850 512MB 630/1000 4GB DDR2-800 OCZ Gold Rv.2 
Hard DriveOptical DriveOSMonitor
700GB SATA300 Storage Sony: 1x DVDROM, 1x DVDRW XP Home SP3 17" LCD (Black/Silver) 
KeyboardPowerCaseMouse
Dell Quietkey Spacesaver Corsair TX 750W Antec SLK3700-BQE (Black) Logitech RX250 USB 
Mouse Pad
Black Generic 
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post #2 of 9
swap out the psu with one u know works. Check all connections. Check for ded ram.
    
CPUMotherboardGraphicsRAM
AM2 5200+x2 EPoX MF570SLI ATI X1900XT 512mb 2x1gb G.Skill DDR2-800 
Hard DriveOSMonitorKeyboard
WD2500KS Windows XP pro 21'' Dell Trinitron P1130 Generic Micro innovations brand 
PowerCaseMouseMouse Pad
Sunbeam Nuuo 550W Cooler Master CM690 MX-518 Fellowes Microban Blackness 
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CPUMotherboardGraphicsRAM
AM2 5200+x2 EPoX MF570SLI ATI X1900XT 512mb 2x1gb G.Skill DDR2-800 
Hard DriveOSMonitorKeyboard
WD2500KS Windows XP pro 21'' Dell Trinitron P1130 Generic Micro innovations brand 
PowerCaseMouseMouse Pad
Sunbeam Nuuo 550W Cooler Master CM690 MX-518 Fellowes Microban Blackness 
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post #3 of 9
Thread Starter 
Quote:
Originally Posted by Chosen
swap out the psu with one u know works. Check all connections. Check for ded ram.
OK. I will swap the PSU out, although I'm fairly sure that this one works. Also, you might be right about the RAM, I have a feeling that might be to blame, although the MB and CPU seem a bit suspect as well...

Highly-Annoyed

My partners PC Spec:
------------------------------------------------------------------------
CPU: 3.2GHz P4 Prescott (o/c'ed to 3.4GHz)
RAM: 512MB Generic stuff (well within it's o/c'ing tolerance level though)
PSU: "EZ Cool" 600W with 22Amps on the +12v
MB: ASRock P4S61
------------------------------------------------------------------------
    
CPUMotherboardGraphicsRAM
Q6600 @ 3.6GHz (400x9) Gigabyte EP45-DS3P HD4850 512MB 630/1000 4GB DDR2-800 OCZ Gold Rv.2 
Hard DriveOptical DriveOSMonitor
700GB SATA300 Storage Sony: 1x DVDROM, 1x DVDRW XP Home SP3 17" LCD (Black/Silver) 
KeyboardPowerCaseMouse
Dell Quietkey Spacesaver Corsair TX 750W Antec SLK3700-BQE (Black) Logitech RX250 USB 
Mouse Pad
Black Generic 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Q6600 @ 3.6GHz (400x9) Gigabyte EP45-DS3P HD4850 512MB 630/1000 4GB DDR2-800 OCZ Gold Rv.2 
Hard DriveOptical DriveOSMonitor
700GB SATA300 Storage Sony: 1x DVDROM, 1x DVDRW XP Home SP3 17" LCD (Black/Silver) 
KeyboardPowerCaseMouse
Dell Quietkey Spacesaver Corsair TX 750W Antec SLK3700-BQE (Black) Logitech RX250 USB 
Mouse Pad
Black Generic 
  hide details  
Reply
post #4 of 9
I just had the same symptoms on a machine I was putting together, I got a dead CPU that was DOA, but PSU first, unplug everything you can, use 1 stick of ram, then start switching parts with known good ones, re-seat everything.
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8400@4.0 DFI Blood Iron EVGA 9600GT 8 Gigs Gskill pc6400 
Hard DriveOSMonitorKeyboard
Maxtor Diamond Max Windows7 Pro Acer AL2016W yes 
PowerCaseMouseMouse Pad
OCZ 500w SXS Ultra Aluminus yes yes 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8400@4.0 DFI Blood Iron EVGA 9600GT 8 Gigs Gskill pc6400 
Hard DriveOSMonitorKeyboard
Maxtor Diamond Max Windows7 Pro Acer AL2016W yes 
PowerCaseMouseMouse Pad
OCZ 500w SXS Ultra Aluminus yes yes 
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post #5 of 9
sounds like a messed up board possibly. Chech his parts in your comp if possible.
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
allendale e6400 gigabyte ds3 palit 9600gt sonic 2x1gig g skill ddr 800 
Hard DriveOSMonitorKeyboard
37 raptor and 250 gig xp pro 22" lcd logitech cordless 
PowerCaseMouse
ocz gamextream 700w antec p182 g7 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
allendale e6400 gigabyte ds3 palit 9600gt sonic 2x1gig g skill ddr 800 
Hard DriveOSMonitorKeyboard
37 raptor and 250 gig xp pro 22" lcd logitech cordless 
PowerCaseMouse
ocz gamextream 700w antec p182 g7 
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post #6 of 9
The system will not post when all drives (HDD & CD), floppy, video card etc are removed and the CMOS has been reset?

If so I would look to RMA of the board, failing RMA a new board seems necessary.

You can, if you wish, testbed all the parts on another system to see if there is anything wrong with them but logic dictates the mainboard is the culprit. I could be wrong so you can test though. Since the system with all parts was working, no changes were made to the system with the outcome being a system stop event boot I would look to the mainboard. An hour of your trouble-shooting time is worth more than the board but since it is your partner you might wish to test the parts out.

R
Roped In
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i7 2600k P8P67 Pro Rev (3.1) @ B3 XFX Radeon HD 6950 XXX 16GB G.SKILL Ripjaws 9-11-9-28 
Hard DriveOptical DriveOSMonitor
2 X Callisto Deluxe 25nm 60GB Plextor PX-B910SA 4x Blu-ray DVD-RW Win7 64 2 x Samsung 275T+ 
KeyboardPowerCaseMouse
Logitech G15 Corsair HX10000 Antec 1200 Logitech G7 
Mouse Pad
Splatter Game Pad 
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Roped In
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i7 2600k P8P67 Pro Rev (3.1) @ B3 XFX Radeon HD 6950 XXX 16GB G.SKILL Ripjaws 9-11-9-28 
Hard DriveOptical DriveOSMonitor
2 X Callisto Deluxe 25nm 60GB Plextor PX-B910SA 4x Blu-ray DVD-RW Win7 64 2 x Samsung 275T+ 
KeyboardPowerCaseMouse
Logitech G15 Corsair HX10000 Antec 1200 Logitech G7 
Mouse Pad
Splatter Game Pad 
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post #7 of 9
Thread Starter 
Thanks for all of your responces!

Firstly, slydog64, thanks for your post, my partner is a she LOL - but yes, I do suspect the motherboard also...

I can't RMA Ropey, as the board is too old now, but a replacement shouldn't be too expensive if that turns out to be the problem...

I have tried the PC with another PSU, but the PC still didn't work... I guess I can rule out the PSU as the problem then...

I haven't tested the RAM yet, I'll do that next, but the more I think about it, the more I get the feeling that the motherboard could well be the problem... Hopefully the CPU is OK, as it will be the most expensive part to replace by far...

I'll update you all when I've tested the RAM, hopefully the RAM is at fault...

Highly-Annoyed
    
CPUMotherboardGraphicsRAM
Q6600 @ 3.6GHz (400x9) Gigabyte EP45-DS3P HD4850 512MB 630/1000 4GB DDR2-800 OCZ Gold Rv.2 
Hard DriveOptical DriveOSMonitor
700GB SATA300 Storage Sony: 1x DVDROM, 1x DVDRW XP Home SP3 17" LCD (Black/Silver) 
KeyboardPowerCaseMouse
Dell Quietkey Spacesaver Corsair TX 750W Antec SLK3700-BQE (Black) Logitech RX250 USB 
Mouse Pad
Black Generic 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Q6600 @ 3.6GHz (400x9) Gigabyte EP45-DS3P HD4850 512MB 630/1000 4GB DDR2-800 OCZ Gold Rv.2 
Hard DriveOptical DriveOSMonitor
700GB SATA300 Storage Sony: 1x DVDROM, 1x DVDRW XP Home SP3 17" LCD (Black/Silver) 
KeyboardPowerCaseMouse
Dell Quietkey Spacesaver Corsair TX 750W Antec SLK3700-BQE (Black) Logitech RX250 USB 
Mouse Pad
Black Generic 
  hide details  
Reply
post #8 of 9
Dont know if its too late to respond, but I think I know what the problem is. Check all of the capacitors on the motherboard. the symptoms that you describe call for a bubbling capacitor. If this is the case, I hope you have good soldering skills and a real steady hand. I have had the same motherboard with the same problem, and all it took was 1 cappy replacement to get a nice stable board.
post #9 of 9
I've seen problems with video cards do this alot aswell.

Memory problems will almost always give you a post code/beep of some kind.

For me, every time the fans powered on but nothing else it turned out to be video card related. If it's onboard video you may be able to intall a video card of some kind...at least a PCI one, but it may have a AGP slot too. However it still means that some thing is wrong with the mother board so it may have to be changed out any way.

And be sure you have tried to clear the CMOS
My System
(16 items)
 
  
CPUMotherboardGraphicsGraphics
2600K @ 4.7GHz Asus P8P67 B3 GTX 580 EVGA Hydro Copper 2 GTX 580 EVGA  
RAMHard DriveOptical DriveOS
4x4GB G.Skill Ripjaws bunch of 'em Blu-Ray For movies Windows 8.1 
MonitorMonitorKeyboardPower
24.4" Hans G HH251 X2 Yamakasi DS270  Blah 1000watt Super Flower 
CaseMouseMouse PadAudio
Built into Desk Microsoft SideWinder X8 Comfy one... Creative Extreme Gamer 
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My System
(16 items)
 
  
CPUMotherboardGraphicsGraphics
2600K @ 4.7GHz Asus P8P67 B3 GTX 580 EVGA Hydro Copper 2 GTX 580 EVGA  
RAMHard DriveOptical DriveOS
4x4GB G.Skill Ripjaws bunch of 'em Blu-Ray For movies Windows 8.1 
MonitorMonitorKeyboardPower
24.4" Hans G HH251 X2 Yamakasi DS270  Blah 1000watt Super Flower 
CaseMouseMouse PadAudio
Built into Desk Microsoft SideWinder X8 Comfy one... Creative Extreme Gamer 
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