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Unknown Cause - need help

post #1 of 21
Thread Starter 
This is the fifth week of searching forums, talking to MS, replacing M/B, flashing BIOS, new memory, different HD, different OS, new cables, and I can't find anyone on any forum with the same problem, or even close.

Computer WAS working just fine, then "it" started.

Problem: It being the system would just reboot by itself. Yes I checked the PS, ran anit-virus deep scans, I have F-Secure (McAffee), one memory stick had to be replaced so now I'm running only on two 512's. So I bought a new mobo, dropped the ASUS and got a DFI nF4 Ultra, the computer quite self-rebooting but now the whole thing goes ape dodo. Not a valid Win32 Application, or the words dissappear off the screen. SO I RMA'd the mobo and no change. I installed a new WINDOWS XP Pro on my SATA drive, and have a XP Home on an IDE drive so it's different OS and Cables etc.. NO DIFFERENCE. BOth "systems" do the same thing. I have to hit reset to use the computer again, I can use it for about 20 min. then it goes dodo again. I'm lost.
    
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post #2 of 21
hmmmm are you running both hard drives at the same time? becuase that could cause some problems maybe
    
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3500+ venice core Abit Rocket Boy MX2 FTW! ¬.¬ TwinX ddr400/cas2.5 512mb x 2 
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post #3 of 21
Thread Starter 
lol, no just one.
    
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post #4 of 21
All temps good?

Any OC?

Does it BSOD then restart?
    
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post #5 of 21
Since you've changed everything but the PS and the CPU I'd try them. Yes, I now you've "checked" the PS, try a different one.
My System
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Intel P4-650 ASUS P5GD2-Premium GeForce 8600GT Corsair XMS2 2x512 
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My System
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Intel P4-650 ASUS P5GD2-Premium GeForce 8600GT Corsair XMS2 2x512 
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2-WD Cavair RE 250GB in RAID 1 Vista Ultimate 32-bit DiamondPoint SB70 Logitech Value 
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post #6 of 21
What you're describing sounds similar to a problem I had in the past. I kept getting the random reboots & BSOD's for no reason on a system that had been perfectly stable for months up till then. For me, the solution was a new PSU. The voltages on all the rails were fine, but apparantly the amperage dropped below usable points after continued use.

Mind you, I had 6 HDDs, 2 Opticals, a floppy/card reader, and an X800XT PE running off it. This is a bit excessive for most PSU's, but the exact same symptoms were present.

Any way you can test with another PSU? Also, have you stripped it down to minimum config (1 HDD, no sound card... only the absolute minimum hardware needed to run) ? I know you said you tested the PSU, but if you remove components to reduce amperage draw, and you end up stable, you've found your problem. You've already stated you're using fresh Windows installs, with different variants, so it's not a software problem. A 7800GTX draws a LOT of power... The cure could be as simple as rearranging which 12v rails feed which components.
    
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post #7 of 21
Thread Starter 
No OC, hell can't even stay on the forums for 10 min cuz this pos quits. I can see all the PS specs when in the BIOS setup, NO I don't have another PS this big, not enough to run this computer. Sorry If I take too long to respond, it's called rebooting.
    
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post #8 of 21
Quote:
Originally Posted by ']['orque
No OC, hell can't even stay on the forums for 10 min cuz this pos quits. I can see all the PS specs when in the BIOS setup, NO I don't have another PS this big, not enough to run this computer. Sorry If I take too long to respond, it's called rebooting.
Yeah... it's gotta be a power problem. I'd lay money on it. You can only see voltage in the BIOS, not amperage, and a drop in amperage is what's causing your problem. Your PSU is struggling to keep power to your system, and manages for a short time, and as available amperage drops, you end up with a starved system that acts flaky & reboots constantly.

My magic crystal ball shows me a new, more powerful PSU in your immediate future
    
CPUMotherboardGraphicsRAM
E4300 @ 3150MHz Gigabyte P35-DS3R Diamond HD2900XT 1GB 4GB DDR2-1000 G.SKILL 
Hard DriveOptical DriveOSMonitor
Samsung 750GB 32mb + 3x 250GB Samsung SATA Windows XP SP2 Samsung 941BW (HANNS.G 28" on the way) 
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Hard DriveOptical DriveOSMonitor
Samsung 750GB 32mb + 3x 250GB Samsung SATA Windows XP SP2 Samsung 941BW (HANNS.G 28" on the way) 
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post #9 of 21
Thread Starter 
Quote:
Originally Posted by Witchfire
What you're describing sounds similar to a problem I had in the past. I kept getting the random reboots & BSOD's for no reason on a system that had been perfectly stable for months up till then. For me, the solution was a new PSU. The voltages on all the rails were fine, but apparantly the amperage dropped below usable points after continued use.

Mind you, I had 6 HDDs, 2 Opticals, a floppy/card reader, and an X800XT PE running off it. This is a bit excessive for most PSU's, but the exact same symptoms were present.

Any way you can test with another PSU? Also, have you stripped it down to minimum config (1 HDD, no sound card... only the absolute minimum hardware needed to run) ? I know you said you tested the PSU, but if you remove components to reduce amperage draw, and you end up stable, you've found your problem. You've already stated you're using fresh Windows installs, with different variants, so it's not a software problem. A 7800GTX draws a LOT of power... The cure could be as simple as rearranging which 12v rails feed which components.

Ok I'll strip her down, but hear me out. Most of the time either I click on a menu or program and it comes up invalid (not a valid Win32 Application OR the layered menu just loses the words. The menu background is there, but just lines no words. I can't even reboot by windows, I have to hit the reset key.
    
CPUMotherboardGraphicsRAM
64 FX-55 ASUS A8N Deluxe 256MB 7800 GTX 2GB 
Hard DriveOptical DriveOSMonitor
1 x 150GB and 1 74GB10,000 rpm RAID DVD-Burner XP sp 2 24" Dell 
KeyboardPowerCaseMouse
Logitec Gamer 620WATT Multi-GPU Lien LI Logitec Laser 
Mouse Pad
Alienware 
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CPUMotherboardGraphicsRAM
64 FX-55 ASUS A8N Deluxe 256MB 7800 GTX 2GB 
Hard DriveOptical DriveOSMonitor
1 x 150GB and 1 74GB10,000 rpm RAID DVD-Burner XP sp 2 24" Dell 
KeyboardPowerCaseMouse
Logitec Gamer 620WATT Multi-GPU Lien LI Logitec Laser 
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Alienware 
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post #10 of 21
Thread Starter 
Quote:
Originally Posted by Witchfire
Yeah... it's gotta be a power problem. I'd lay money on it.

My magic crystal ball shows me a new, more powerful PSU in your immediate future
****, I just bought a BMW K1200 LT, my wife won't let me spend another two cents.

I can't belive it, (well i could, but this is silly) I have had NO luck with ps. I have bought Enermax 660 (two rail system that they sent me THREE in a row that sucked. Then I bought this new ANTEC 550 which has worked fine, tests fine, (till now you say) even shows slightly higher voltages on the 5 and 12 rails with the new mobo.
    
CPUMotherboardGraphicsRAM
64 FX-55 ASUS A8N Deluxe 256MB 7800 GTX 2GB 
Hard DriveOptical DriveOSMonitor
1 x 150GB and 1 74GB10,000 rpm RAID DVD-Burner XP sp 2 24" Dell 
KeyboardPowerCaseMouse
Logitec Gamer 620WATT Multi-GPU Lien LI Logitec Laser 
Mouse Pad
Alienware 
  hide details  
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CPUMotherboardGraphicsRAM
64 FX-55 ASUS A8N Deluxe 256MB 7800 GTX 2GB 
Hard DriveOptical DriveOSMonitor
1 x 150GB and 1 74GB10,000 rpm RAID DVD-Burner XP sp 2 24" Dell 
KeyboardPowerCaseMouse
Logitec Gamer 620WATT Multi-GPU Lien LI Logitec Laser 
Mouse Pad
Alienware 
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