Basically replaced a half dead vid card with a new 660 ti. I also put in a new power supply, a TX650v2, b/c of it's bigger wattage and the fact that it has 2 6v rails needed for this beefier card.
Ok, so when I installed everything, I went to turn the computer on and the computer would not boot up at all as if it was unplugged.
When I take off the entire video card from the computer, the computer will boot no problem.
When I have the video card installed, BUT the two 6v rails removed, the computer will start but will not get past a screen saying "Please power down and connect the PCIe power cable(s) for this graphics card." The vid card actually powers on and the fan spins.
Edit: Something to add to this, after the vid card powers on w/o the two 6v rails, I cannot get this message with the vid card with the computer to open like that again without switching off/on the power supply and replugging the power supply.
I place the 2x 6v rails back in the slot and of course the computer will not boot.
Things that I have made sure of/tried:
* graphics card and other components seated properly
* two main power supply connectors seated properly (20+4 pin) and (12v)
* CMOS POST battery removed for 4 hours and returned, reset to default, research showed this solved others similar problem
Is there anything else I can try here? I don't have my old vid card anymore and my older power supply has only one 6 v rail. I don't have integrated graphics so I can't open the computer w/o a vid card. I don't have a 4x PCI-e slot to test the card in or another 16x slot. I don't know what else to test. I'm currently at a complete loss of what to do next.
Specs:
* Phenom II 550BE (used to be unlocked quad B 50 x4, but I'm guessing with the CMOS reset it prob went back to dual core)
* Corsair TX650v2 power supply
* Gigabyte MA770T UD3P
* 12 Gigs of RAM (2x2gb ddr3 + 2x4gb ddr3 gskill)
* Sythe Mugen 2 heat sink
* CM690 case
* 1 tb Samsung f3 hard drive
* Samsung DVD burner drive
* 2 gb EVGA 660 ti
Have you tried installing the card in another computer?
Also, just so people know what you are talking about, I believe you mean two 6 pin PCIe power connectors not 6v rails. A little bit of info, your power supply most likely has multiple +12 volt rails, at least one +5 volt rail and at least on +3.3 volt rail and of course the negative of each rail (has to do with current amplification and conversion of AC current to DC).
On another note, do any of the fans on your computer at least spin when the graphics card is plugged in?
[QUOTE=The Last Man;38318375]Have you tried installing the card in another computer?
Also, just so people know what you are talking about, I believe you mean two 6 pin PCIe power connectors not 6v rails. A little bit of info, your power supply most likely has multiple +12 volt rails, at least one +5 volt rail and at least on +3.3 volt rail and of course the negative of each rail (has to do with current amplification and conversion of AC current to DC).[/QUOTE]
Ah thanks for the info concerning the terminology of the PSU.
As for finding another computer to plug it in, all the computers I have access to are too old (agp) or are laptops.
[QUOTE=The Last Man;38318375]
On another note, do any of the fans on your computer at least spin when the graphics card is plugged in?[/QUOTE]
The fans only spin (in fact, the whole computer turns on) when the graphics card is plugged in in the PCIe x16 slot while both the PCIe connectors are not plugged in. Otherwise, when both PCIe connectors are plugged in, nothing spins or turns on.
So far I have a few more options to test, but I need to buy some stuff. Such as a molex PCIe to see if maybe one of those PCIe cables are faulty, and also need to find some other computer to test the graphics card but I don't know of other computers with wattage/amperage enough for this card.
Last resort: If I exchange the vid card for a new one, at least I might be able to tell if it's a psu thing or a gpu thing....crap what if it's a mobo thing....I don't like these ambiguous situations at all...
If you had a graphics card in the PCIe slot previously then this is probably not a motherboard problem. If you still have the 'half-dead' graphics card, plug it back in and make absolutely sure that you remove all of the graphics drivers. Use Driver sweeper to remove the drivers of that card and any graphics drivers that might be on your PC. This sounds like it might be a hardware issue but try and rule out possible software problems first.
[QUOTE=The Last Man;38320136]If you had a graphics card in the PCIe slot previously then this is probably not a motherboard problem. If you still have the 'half-dead' graphics card, plug it back in and make absolutely sure that you remove all of the graphics drivers. Use Driver sweeper to remove the drivers of that card and any graphics drivers that might be on your PC. This sounds like it might be a hardware issue but try and rule out possible software problems first.[/QUOTE]
I currently do not have the card, but it's an 8 series card that had the latest nvida drivers that support the 660 ti as well as 8 series through 6xx series. I didn't think it would be a problem but I'll see what I can do.
[QUOTE=The Last Man;38320136]If you had a graphics card in the PCIe slot previously then this is probably not a motherboard problem. If you still have the 'half-dead' graphics card, plug it back in and make absolutely sure that you remove all of the graphics drivers. Use Driver sweeper to remove the drivers of that card and any graphics drivers that might be on your PC. This sounds like it might be a hardware issue but try and rule out possible software problems first.[/QUOTE]
It cant be a software problem if the computer wont boot as if it wasnt plugged in, afaik.
[QUOTE=Str4fe;38320488]It cant be a software problem if the computer wont boot as if it wasnt plugged in, afaik.[/QUOTE]
This is true, but it is best to rule out easy and less time consuming solutions first. Sending the card in for an RMA is time consuming where as ruling out driver conflicts is not.
@OP, truth be told this is either going to be a bad graphics card or a bad power supply. Most likely the graphics card. Say, I don't suppose that the graphics card is an MSI brand is it?
Sounds like a dead card to me. I get this problem all the time at work testing cards and motherboards. The board posts, goes into Bios, runs Memtest, etc. Swap in a card to test it, and nothing.
[editline]8th November 2012[/editline]
Fuck, bumped.
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