My computer don't start with new VGA

[angelotinti]

I bought a new video card and installed it on my computer.
Before I had a HD2600XT Sapp 256mb, now I bought this HD5770 Vapor-X Sapp 1GB.

With the new video card I have no video signal.

Posted in the motherboard because I tested my new video card in another PC and it worked.

So I guess that could be some compatibility issue or problem the BIOS setup.

Someone help me?

 

[aford10]

What's the PSU you're using? It may be too weak to power the new video card.

 

[angelotinti]

I have a Dr Hank 500w real.

 

[aford10]

Look for a label on the side of the PSU. What does it have listed for the 12v rail(s)?

 

[angelotinti]

 

[aford10]

That's not a real high end PSU to begin with. If it's been used for a while, it's output has likely diminished.

Since you tested it in another PC and it worked, try using the PSU from that PC, in yours.

 

[Onus]

I can't find any substantive information on it, but that PSU looks like an old-design generic. It probably isn't good for more than 80% of its label. Still, just to boot up, a HD5770 should be using very little power. Does this PSU have a PCIE power cable, and is it plugged into your GPU?

 

[mindless728]

wow, Dr Hank, thats a new one

+1 to the above
it should run the card in idle, though if you actually want to use the 5770 you need to get a new PSU

 

[angelotinti]

I tested the card in a weaker PSU (other computer). And it worked. For this reason, I thought it is problem with the motherboard. Or have some other device that may be incompatible with the VGA?

Settings in the BIOS perhaps?

 

[aford10]

Was the other PSU weaker in wattage or amperage on the 12v rail? Do you remember the other PSU model?

It's not likely a BIOS setting. If your motherboard has onboard video, it should be disabled when you attach a dedicated graphics card.

 

[angelotinti]

The other PSU brand 7A to 12v. It is a generic model of PSU.
My motherboard don't has onboard video.

As far as I know, to boot the HD 5770 uses little power.
I connected the power cable six pins in two cases.

So I imagine some sort of incompatibility with some other peripheral, probably the motherboard.

I've done the bios update. (Asus M2A-MVP, build 511)

 

[aford10]

It's not a direct comparison between the two different systems. The different hardware have different power requirements.

I've had a similar situation recently. I just built a computer for a friend. I put the exact same model PSU in his system, as is in one of my backup PCs. I got him a 4770. The 430w Thermaltake in my backup PC was able to power the card. However, when I put the card in his system, I got nothing but spinning fans. He's been using my 8400gs in the mean time. I just recently ordered the 450w Corsair that has more amps on the 12v rail. Worked like a charm.

This is the Corsair PSU that I ended up getting for my friend's system. Notice the wattage isn't much different than yours. However, take a look at the amps on the 12v rail.
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139003

 

[Onus]

I'm with aford10. The card works; the slot works (assuming it's where you had your old card). This looks like a PSU problem.

 

[angelotinti]

I will test with a new PSU.
Then bring the test result.

 

[angelotinti]

I tried using the PSU from a friend of mine and did not work.
I put the PSU it on my PC and nothing.

Then tested it with my video card in his PC, the same PSU, and it worked.

My build and his build are similar.

As jtt283 himself said, the 5770 starts with a low power consumption.

I see that the problem is not with the PSU.

 

[aford10]

The hardware in the two builds may be similar, but they were similar in my example above as well.

I see a couple options. You can try a different PCIe video card in that slot, to verify the slot is still good. Or, you can get your hands on a beefier PSU (something with more than 7amps on the 12v)

 

[angelotinti]

The slot works because before buying the 5770 I had a 2600.
And the PSU I used to test my video card in 2 PCs (I can't remember the manufacturer) had 22amps to 12v.

I don't know what to do. I'll try to think of something...

 

[aford10]

The slot worked before. You've also been swapping hardware in and out. It's worth a shot to verify to slot is still good.

If the slot is still good, I think that leaves one option.

 

[angelotinti]

And what would this option?

 

[aford10]

I see a couple options. You can try a different PCIe video card in that slot, to verify the slot is still good. Or, you can get your hands on a beefier PSU (something with more than 7amps on the 12v)