Sapphire HD 7770 Not powering (New Card)

Chromedstang · May 6, 2013

Hey all

I just bought this card recently and it didn't power up. My old card "fried" but it still powers up. So after that I RMA'd my Motherboard and got it back today..Problem is the card still doesn't power up. So for good measure I plugged in my old card and it powered up but still had no display. I'm annoyed because I can't afford to do all kinds of work to it.

Here's my specs

MSI 870A-G55

Intel Quad Core Phenom 3.2Ghz

8 Gig RAM

Sapphire HD 7770

500 PSU.

Also

My old card is an EVGA GeForce GTS450

My New card is a Sapphire HD7770

griptwister · May 6, 2013

Intel Quad Core Phenom? I hope you're not just an Internet troll. And what do you mean it's not powering up? Is it not displaying? Or is it not turning on at all? If it's not displaying, I recommend sending the GPU back. But, before you do that, Do you have the Power connectors plugged in?

maxalge · May 6, 2013

Chromedstang :

Make and model of power supply + amps on the 12v rail.

Did you connect the 6pin power connector to the card?

Try installing it into the other pcie slot, does it turn on?

Chromedstang · May 6, 2013

Sorry I meant AMD http://www.newegg.com/Product/Product.aspx?Item=N82E16819103808

I plugged in the 6 pin.

Also what I mean by doesn't power I mean the fan doesn't turn on or anything. I've tried two diff power supplies and nothing.

griptwister · May 6, 2013

Chromedstang :

That suggests the Card is dead or their isn't enough power being delivered to the card. You might want to call the card manufacturer and send it back for a new HD 7770. I Don't know why the Card wouldn't turn on except for it being dead. But, like I said, call the company, and they should help you

smorizio · May 6, 2013

Few things. Make sure the 4/8 pin pci power plug on the mb is plugged in and tight. Also make sure your new mb bios is up to date is code be a bios bug causing the no post.

Chromedstang · May 6, 2013

Also it was tested in another computer and worked just fine.

griptwister · May 6, 2013

Smorizio is onto something. That is a possibility.

Chromedstang · May 6, 2013

I can't update the bios cause I can't see the screen

smorizio · May 6, 2013

If you have and old pic or one that doesn't need any extra power try that.

Chromedstang · May 6, 2013

Also when I power it up my mouse doesnt even light up

griptwister · May 6, 2013

That's not the GPU then... It sounds like your MoBo is done... Or your PSU isn't enough... which It should be...

smorizio · May 6, 2013

WHen the video card shorted it it may have taken the power supply with it.

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Sapphire HD 7770 Not powering (New Card)

Chromedstang

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griptwister

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maxalge

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Chromedstang

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griptwister

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smorizio

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Chromedstang

Honorable

griptwister

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Chromedstang

Honorable

smorizio

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Chromedstang

Honorable

griptwister

Distinguished

smorizio

Titan

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