hooked up new video card

[Dutchmaster420]

I just hooked up an evga 7900gs...it has the additional 2 4 pin power adapters...I hooked up both of them and the pc booted up past the bios post but when windows should be booting a black screen comes up with a white dash in the upper right corner blinking and it stays like that

I have nothing overclocked everything is stock and I have an aftermarket cooler on my cpu

I have a 500watt antec psu that came with my case...Every power connector it came with is in use...when I detached one of the 4 pin power adapters from the vid card and just left one in it booted up and Im reinstalling vista right now

Does my psu not have enough power to power everything???Should I get a new one>


EDIT: After windows finished the main part of installing and was about to boot winodws up for the first time it did the same thing...then i rebooted and it went through....This has to be my PSU right...any suggestions on a good replacement...not looking to spend more than $150

 

[GalvanizedYankee]

At much less than $150, via Froogle, just buy the most excellent Corsair 520HX and be done with it.
Yes it will be plenty.

If the Anwreck is < three years old, RMA it for a spare or sell it.

 

[conlan]

Originally posted by: Dutchmaster420
I just hooked up an evga 7900gs...it has the additional 2 4 pin power adapters...I hooked up both of them and the pc booted up past the bios post but when windows should be booting a black screen comes up with a white dash in the upper right corner blinking and it stays like that

I have nothing overclocked everything is stock and I have an aftermarket cooler on my cpu

I have a 500watt antec psu that came with my case...Every power connector it came with is in use...when I detached one of the 4 pin power adapters from the vid card and just left one in it booted up and Im reinstalling vista right now

Does my psu not have enough power to power everything???Should I get a new one>





EDIT: After windows finished the main part of installing and was about to boot winodws up for the first time it did the same thing...then i rebooted and it went through....This has to be my PSU right...any suggestions on a good replacement...not looking to spend more than $150

500W is more than plenty for what your running. Test w/ another VidCard if you can, or test that VidCard on another system.
Is this a new system build? or just adding the VidCard?

 

[Frintin]

Unless your power supply is way messed up, you got more than enough power. Going to have to swap out some parts to isolate the trouble. Check cabling and make sure that each connector is on a different power supply lead maybe? Having a splitter going to both the power connectors on your video card is not good enough, at least one must be on a separate power lead I think.

 

[Operandi]

A good 300-350 watt PSU is all that is needed to run a mid range system with a 7900GS.

If it is a power issue (which wouldn't be at all surprising given Antec's recent reliability) this 400 watt Enhance will solve your problems.

 

[Dutchmaster420]

Originally posted by: Frintin
Unless your power supply is way messed up, you got more than enough power. Going to have to swap out some parts to isolate the trouble. Check cabling and make sure that each connector is on a different power supply lead maybe? Having a splitter going to both the power connectors on your video card is not good enough, at least one must be on a separate power lead I think.

So your saying hook up each of the 4 pin connectors to differnt ports on the psu?

its one wire thats connected the the card then splits off too two 4 pin connectors...both have to be connected correct?


Edit: Also this is what i need to split for more 4 pin adapters correct

http://www.newegg.com/Product/ShowImage...+Blue+LED+Light+Model+A2369+%2D+Retail


http://www.newegg.com/Product/ShowImage...+x+4Pin+Cable+Model+CVT1424+%2D+Retail


they are both the same premise right

 

[pkrush]

Before you get a new PSU, reinstall your old ATI card. Go into the Control Panel and uninstall ATI's drivers. Then, download and run Driver Cleaner Pro to get rid of the bits of files the uninstaller tends to miss. Next, shut down your computer and put the 7900gs back in. This time, it should work (at least with the generic Windows drivers). This often happens when switching from nVidia to ATI. If none of this helps, then yes, you could have a power problem.

 

[herbiehancock]

I'd second the Antec problem Gal. Yankee mentioned above. You've more than likely got a Smart Power in there.....notorious for being one of the absolute worst power supplies on the market. And jsut because it says 500 watts on the outside means nothing. It's what its rails are rated for max. in amperage and wattage, not the total watts output from the supply. There are more than one 500 watt supply on the market that can barely put out 300W on the 12V rail....some are lucky to get 250W out.

The overall rating is meaningless....

Take a review of some 400W power supplies I read yesterday. Out of those 4, only one really put out enough power on the +12V rail to power properly and cleanly on an overclocked X2 3800+ and an overclocked 7900GTO video card. The rest had their +12V outputs sag so much it was scary.

The one 400W ps even managed to push that system to power a pair of 7900GS's in SLI.....that's an SLI setup running well off a 400W power supply. The implication? Hard to believe, but power supply "makers" often lie about their true outputs from their power supplies. Just because the power supply has 500W written all over it doesn't mean squat...sorry to offend others here, but it's the truth. And you don't have to spend over $100 to get a stout, good power supply, either. For $69, you can get a GOOD 500W power supply that's 80+ certified, will run SLI, run cleanly without significant ripple, run quietly and not damage yoru components becasue it's running almost flat out all the time. Enhance ENP-5150GH. EWiz.com.

 

[crossrode]

Originally posted by: pkrush
Before you get a new PSU, reinstall your old ATI card. Go into the Control Panel and uninstall ATI's drivers. Then, download and run Driver Cleaner Pro to get rid of the bits of files the uninstaller tends to miss. Next, shut down your computer and put the 7900gs back in. This time, it should work (at least with the generic Windows drivers). This often happens when switching from nVidia to ATI. If none of this helps, then yes, you could have a power problem.

Amen, What he said.

 

[Roguestar]

Graphics drivers will have no effect whatsoever on whether or not it POSTs, because they're not loaded until windows starts. Therefore if it has enough power and Amps to power the card before the windows splash screen, I would assume that it's not a power supply problem but a driver problem as mentioned above.