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Problems with two computers

post #1 of 34
Thread Starter 
EDIT: Please see latest post, it's easier to just keep updating this thread.



Just put together my new comp and it posted once fine but didn't have the right boot drive so I had to reset it. But since then, it won't turn on at all with a video card plugged in...

If I reset the CMOS the fans will turn over once then stop and nothing else happens. But if I unplug the video card it seems to post fine, though I can't be certain as I can't see anything. Ive tried both my 460 and my old 8800 and get the same results.

I'm fairly sure the problem is just my psu but it makes no sense to me why it worked fine the first time.

Specs:
600 watt psu. http://www.newegg.com/Product/Product.aspx?Item=N82E16817341001
I7 950
Asus II Gene
460 gtx or 8800 gts

Could it just be that I don't have enough power...i was under the impression 600 watts would be plenty.
Edited by downloads_plz - 1/7/11 at 6:23am
    
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post #2 of 34
try booting with one stick of ram. also put the gfx card in a different slot. ur psu should be able to boot with a 8800
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Sexy Sandy
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post #3 of 34
Thread Starter 
Quote:
Originally Posted by ckybam3;11894218 
try booting with one stick of ram. also put the gfx card in a different slot. ur psu should be able to boot with a 8800

Tried all of this, still nothing. No matter what I do if a video card is Plugged in nothing works. Even tried using a connector from 2x 4 pins to pci-e converter, still nothing.
    
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post #4 of 34
When you boot it up without any video cards in it, does it give you a post code? In most cases, it should be a long beep followed by a short beep or two. If not, then I would suspect something in the MoBo or CPU died.

When you tried with one stick of RAM and it didn't work, did you try with a different stick of RAM just to make sure that the one stick you were using wasn't bad?

Do you have access to another PSU you could use just to see if the system will boot up?
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Big Baby
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post #5 of 34
is the psu brand new? That isnt exactly a great psu but should power your build.
Sexy Sandy
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Sexy Sandy
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post #6 of 34
Thread Starter 
Quote:
Originally Posted by Razinhail;11894559 
When you boot it up without any video cards in it, does it give you a post code? In most cases, it should be a long beep followed by a short beep or two. If not, then I would suspect something in the MoBo or CPU died.

When you tried with one stick of RAM and it didn't work, did you try with a different stick of RAM just to make sure that the one stick you were using wasn't bad?

Do you have access to another PSU you could use just to see if the system will boot up?

It just gave a beep with no video card in...first time it's done that, before it just ran the CPU and case fan as though nothing was wrong. It was just one short beep and then it turned off immediately. With a video card plugged in it does the same as before; fans turn over once then nothing.

I've tried it with all 3 sticks of ram so I'm fairly sure it's not that...I should always be in the blue slots as long as I have less than 4 sticks, right? Though I dont know if that would account for my problems anyways.

The psu isn't new; about 3 years old actually, and I have no others that would be any better at all. I just took it out of my sig rig though so I know it works...the only Part I can't be 100% sure about is the CPU2 connector as I never needed to use it before.
    
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post #7 of 34
One short beep and then it powered down? Very odd... If you have a multi meter you can backprobe the CPU2 connector to check its voltage.

According to a pic (attached) of your PSU from Newegg the CPU2 and the PCI-E2 share the same electrical circuit (the 12V2 Rail to be specific). If you can't get any voltage when you backprobe the CPU2 connector then that's why video won't work and the PSU is dead.

Really hope for your sake I'm wrong...
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Hard DriveOptical DriveOSMonitor
Kingston 64GB SSD, 1TB Hitachi and 3 160GB drives ASUS dual layer SATA II DVD burner Windows 7 Pro 64 Bit and a few virtual machines ;) Hanns.G Hi221D 22" LCD Widescreen 
KeyboardPowerCaseMouse
standard junker nothin' fancy. Yet... HIPER 730 W Rosewill Conqueror Logitech Trackball (TrackMan is the model I think) 
Mouse Pad
The Desk! 
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Big Baby
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Hard DriveOptical DriveOSMonitor
Kingston 64GB SSD, 1TB Hitachi and 3 160GB drives ASUS dual layer SATA II DVD burner Windows 7 Pro 64 Bit and a few virtual machines ;) Hanns.G Hi221D 22" LCD Widescreen 
KeyboardPowerCaseMouse
standard junker nothin' fancy. Yet... HIPER 730 W Rosewill Conqueror Logitech Trackball (TrackMan is the model I think) 
Mouse Pad
The Desk! 
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post #8 of 34
Thread Starter 
Quote:
Originally Posted by Razinhail;11894955 
One short beep and then it powered down? Very odd... If you have a multi meter you can backprobe the CPU2 connector to check its voltage.

According to a pic (attached) of your PSU from Newegg the CPU2 and the PCI-E2 share the same electrical circuit (the 12V2 Rail to be specific). If you can't get any voltage when you backprobe the CPU2 connector then that's why video won't work and the PSU is dead.

Really hope for your sake I'm wrong...

I dont have a multimeter so that's sort of out. The pci2 does share a rail with cpu2, but to clarify the pci2 pin doesn't have to be involved at all for it to not work; the 8800 with pci1 doesn't work either.

I really have no Problem with buying a new psu, but to me I'm not completely sold on it being a psu problem. Though I have no idea what the problem would be otherwise.

And yes, it's just one short beep.
    
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post #9 of 34
Thread Starter 
Update.

Put the psu back in my sig rig and it doesn't work either now...kind of. All the fans will run indefinitely but it wont try to post or give any beep codes either.

I did the paperclip test on my psu and it will power a case fan but won't turn on the gpu.

I'm guessing, or hoping, that the psu is the problem?
Edited by downloads_plz - 1/5/11 at 8:35am
    
CPUMotherboardGraphicsRAM
I7 950 @ 4.01 with HT On Asus Sabertooth X58 460 GTX 1GB @ 800/1050/1600 DDR3 @ 1527 8-9-9-24 
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CPUMotherboardGraphicsRAM
I7 950 @ 4.01 with HT On Asus Sabertooth X58 460 GTX 1GB @ 800/1050/1600 DDR3 @ 1527 8-9-9-24 
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Intel X25-M 120GB SSD Windows 7 Ultimate Corsair 650W NZXT Gamma 
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post #10 of 34
Thread Starter 
Also a question about the paperclip test. Should it make everything work at full power? I ask because while the psu will turn on indefinetly, it the fan spins very weakly.
    
CPUMotherboardGraphicsRAM
I7 950 @ 4.01 with HT On Asus Sabertooth X58 460 GTX 1GB @ 800/1050/1600 DDR3 @ 1527 8-9-9-24 
Hard DriveOSPowerCase
Intel X25-M 120GB SSD Windows 7 Ultimate Corsair 650W NZXT Gamma 
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Reply
    
CPUMotherboardGraphicsRAM
I7 950 @ 4.01 with HT On Asus Sabertooth X58 460 GTX 1GB @ 800/1050/1600 DDR3 @ 1527 8-9-9-24 
Hard DriveOSPowerCase
Intel X25-M 120GB SSD Windows 7 Ultimate Corsair 650W NZXT Gamma 
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