HELP! Black Screen With New Graphic Card? 7870

July 25, 2013 at 03:21:13
Specs: Windows 7
Hi Guys,

This is driving me crazy.

I bought an HP PC last year which I have upgraded a few parts in, current configuration is:

Motherboard: Intel H61 Chipset (std)
Power Supply: Corsair GS600 Watt (upgraded)
Ram: 8 GB (std)
Processor: i3-2120 (std)
Graphic card: HD 7770 (Upgraded)

Now everything was running fine with the 7770, but I decided I needed a bit more FPS, so I bought a Gigabyte 7870 OC.

Took out the 7770, plugged in the new card. Both PCI-E cables etc. (everything 100%, it's fitted correctly, the monitor is plugged in etc. So please don't ask about this stuff). but when I boot the PC all I get is a black screen.

Strange. I plugged back the 7770 and everything worked as it should. Tried again with the 7870.. Black screen.. I thought, ok card must be DOA, so I ordered a second card, this time a Club3d Joker XT 7870.

Same exact thing.. Just a black screen. The PC turns on, all fans are running, but monitor shows no display.. When I plug back the 7770, everything works again..

This puzzles my mind. What the h*** is wrong here?

See More: HELP! Black Screen With New Graphic Card? 7870

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July 25, 2013 at 04:29:12
Hi emigear,

Both the video cards are PCI Express 3.0 x16.

If the issue persist with Gigabyte 7870 only, I would suggest you to update the BIOS of the system board which may fix the issue.

You may refer to the link mentioned below in which updating the BIOS fixed the issue.

Thanks & Regards
Manshu S

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July 25, 2013 at 05:08:04

The issue is not just with the Gigabyte card, it is with BOTH Gigabyte 7870 and Club3d 7870.

The 7770 which is working is also Club 3D.

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July 25, 2013 at 05:20:54
DellMan, you did not provide the link you referred to.

Are you using the same type of monitor port with both cards? Any adapters in the cabling?

Is the 7870 longer than the 7770? If so, perhaps the card is not seating fully because it is hitting something.

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Related Solutions

July 25, 2013 at 05:49:21
Yes, as said. Everything is fitted 100% in slots. The 7870 is of course longer, but it is 110% in the slot.

I have tried 2 different monitors, both with DVI and HDMI. They both work on 7770, but with 7870 i still get the black

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July 25, 2013 at 07:38:44
Try to clear CMOS.

You know the real meaning of peace only if you have been through the war.

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July 25, 2013 at 10:26:49
Just to be clear, you see a black screen immediately upon boot? If so, do you have fast boot enabled? Trying to determine if this is a pure hardware issue or an OS issue.

See if you can boot into Safe Mode by tapping F8 continuously, immediately at start up.

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July 25, 2013 at 12:49:50
Does that system also have on-board graphics? If so see if it works when the cards don't.

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July 25, 2013 at 23:08:18
Tried clearing CMOS, did not work.

Can"t boot into safemode. Or at least i cant see anything. The screen shows nothing. I dont even get picture during startup.

I have onboard graphics which works when no card is plugged in. When either of the cards are plugged it, it doesnt work. Disabling onboare via bios does not work either.

My friend had exactly the same problem with his pc a few months ago (different components, different cards). He ended up simply returning the card bc noone was able to give a solution.

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July 26, 2013 at 05:55:25
Out of curiosity, which port are you using to the monitor?

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July 26, 2013 at 11:18:22
As I said in post #4

I have tried 2 different monitors, both with DVI and HDMI. They both work on 7770, but with 7870 i still get the black

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July 26, 2013 at 16:58:47
There's some discussion here about the gigabyte gpu being overclocked:

and also power requirements. I'd think your 600 watt Corsair wold be enough but it depends on how the amperage is allocated.

Try the bios upgrade DellManshuS recommended and if that doesn't do it (and assuming the cards are good and everything is connected) then it just about has to be a power issue.

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July 27, 2013 at 06:49:13
DAVE, that PSU has 1 +12V rail at 49A. More than enough for any setup with a single graphics card.

I am thinking the HP board may not supply the required current from the PCIe x16 slot. Obviously, both the 7870 cards must work in other systems.

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July 30, 2013 at 08:58:30
I tried a new 750W psu, same thing.
I purchased this new Motherboard:

Still the same thing.. Shouldn't that motherboard support the 7870

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July 30, 2013 at 11:07:55
My #12 above was guessing that the HP board may be substandard and not supply sufficient power to the PCIe x16 slot.

I don't know enough about how graphics cards interact with the processor, if at all, but you have a lower end Intel CPU, which possibly could have some bearing on the problem.

I was NOT suggesting your PSU was under powered. Just the opposite of that.

Your 7870 card has 2-6 pins auxiliary connectors on it. Are you connecting to both of those?

See the link below to understand how the power is supplied to a graphics card.

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July 30, 2013 at 14:43:02
Yes i thought it was the HP motherboard as well, but now since I bought a new motherboard and it does the same, I really have no idea what it could be.

The new motherbaord is also a cheap version. But it is PCI-E 3.0 16x, so I guess it is compatible with the card

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July 30, 2013 at 14:55:23
I posted on your other thread, please tell folks there to post here, and copy a link from the address bar a paste into your response. BTW, I am one of the moderators here.

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July 30, 2013 at 20:35:30
Given everything here (and on the other thread) I'd be pretty confident that both of the cards are faulty. We have ruled out the motherboard and PSU by trying them with different parts, and the only common factor has been those 7870 cards.

Return them and if you get another card ensure they are handled correctly and when installing them take anti-static precautions. Also, if you get a replacement get a 7850, its more in line with the rest of your system, will put less power and heat stress on everything and is still an excellent card. I have been driving. A 27" monitor with one @ 2560x1440 and it performed very well.


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July 31, 2013 at 09:42:06
yep check the on board graphics in your bios some times it will auto change back ot it so you will have to find it and and make sure its in pci
an easy test to see if this is what's happened is plug your vga in to pc out not the graphics card

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July 31, 2013 at 10:04:57
How about it may just be a bad card? Take it back, get another one or another model of video card.

Put the nightmare to bed, so to speak, I don't like doing that often but sometimes it is what is needed.

message edited by HopperRox

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August 1, 2013 at 09:25:57
Just returned both cards. I don't even really want to try a third one to be honest.. I asked the guy from where i bought it, and he said that my PSU had to be upgraded. lol. I even tried with a corsair 750w and he suggested that I should buy an 800watt from him.. yeah right.

I might just go ahead and get a gtx 660 ti instead.

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