Wont boot with a N250GTS

Micro-star international N250gts-2d512-o...
August 31, 2009 at 17:01:21
Specs: Windows Vista x32

i brought this video card yesterday and went to
install it to my machine. The PC books perfect
without the drivers installed but as soon as i
load the drivers when i try to boot it gets to the
green loading bar and after finishing that just
goes a black screen.

So the card works fine when no drivers are
installed but if install drivers for it no longer
works. I have also downloaded drivers off web
site in place using the CD one and the same
problem occurs. I even reinstalled Windows
Vista and still no luck. Any suggestions or

Thank You

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August 31, 2009 at 17:15:19
Does your power supply at least meet the minimum requirements listed in the manual?

"Minimum 450W or greater system power supply (with a minimum 12V current rating of 24A)"

Do you have the 6-pin PCIe plug connected to the card?

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August 31, 2009 at 17:25:26
Thank you for reply

I did check the system requirements earlier and just now
checked again and my power supply meets them. I also have
been plugging in the cards power cable.

Problem is only occuring post driver installation.

Thank you

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August 31, 2009 at 17:48:08
Still sounds like it could be a power issue. If it uses ~5a of +12v power for 2D and ~13a for 3D, you could certainly see a post screen and fail trying to run 3D.

What is the manufacturer and model of your psu? We can't say it's a power issue for sure but it's still worth the research to narrow down the problem.


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Related Solutions

August 31, 2009 at 18:23:20
I don't have access to my machine atm but I know it is a260w.
I will try and get more info but could this be the winner?
Machine is only 6nths old.


that is link to case I have centurion 5 from mastercool

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August 31, 2009 at 21:36:33
I assume you mean a 460w psu, not 260w. Regardless, let's forget about watts for awhile. We need to know the amps available on the +12v rail(s). A rail is the same as a circuit.

Modern psu's can have a single +12v rail or more than one...2, 3, or 4 are common now days. Whatever you have, each will have an amperage rating. If you have only one +12v rail, it must have 24a or more. If two, each should have something like 15-17 amps. All this info is on the label of the psu. That's the information we're asking for.

The psu might not be the problem but we need to get it out of the way; easiest way is to give us all the info on that label.

Popular belief is that if you buy a name brand case, a name brand psu is included. That's not true; should be, but it ain't.

According to CM site, the 460w psu is included with a Centurion 534 and a 390w psu with the Centurion 5.

Check the label for us and we'll go from there; jam is on to the most common cause of your problem.


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August 31, 2009 at 21:57:36
Thanks for the reply,

will be able get all this info for you when I get home.

Thanks once again

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September 1, 2009 at 02:40:34
Ok, earlier details where wrong sorry what power supply i

from the label:

Model: RS-550-PCAR-E3

AC Input: 115/230V 8/6.3A 50.60Hz

DC Output: +3.3V +5V +12V1 +12V2 -5V -12V 5Vsb
Max Output: 25a 25a 16a 16a 0.8a 0.8a 2.5a

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