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No display/post with new GPU(HD 7770)

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  • GPUs
  • Graphics
  • Displays
Last response: in Graphics & Displays
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November 17, 2013 8:32:40 PM

I bought a Gigabyte HD 7770 GHz Edition and a new PSU recently only to find that the GPU won't work(I've tested the old one with the new PSU and it works fine).

When I try to turn it on the fans spin up but there is no display, or lights on the keyboard or mouse.
I have plugged in the 6 PIN PSU connector, and the 4 PIN mobo connection.

Edit for Specs:
Mobo: ASUS P5VD2-VM
CPU: Intel Core 2 Duo E4600
Ram: Not sure of model, but it's two 2gb sticks, however the Mobo can only handle 3gb or so.
PSU: Corsair VS550 ATX

More about : display post gpu 7770

November 17, 2013 10:54:53 PM

Can someone please help me, if I need to return this I need to do it soon.
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November 18, 2013 3:17:48 AM

Tydrodron said:
Can someone please help me, if I need to return this I need to do it soon.


Your motherboard does not support pcie-3.0.

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November 18, 2013 4:12:41 AM

isn't PCIe x16 backwards compatible?
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November 18, 2013 4:17:10 AM

Are you sure its only the display which is missing? is the mobo and the CPU powered on???
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November 18, 2013 4:18:31 AM

The fans spin, but the keyboard and mouse lights don't come on.
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November 18, 2013 4:21:50 AM

Tydrodron said:
The fans spin, but the keyboard and mouse lights don't come on.


which fan?? the CPU as well as the GPU fan should be running, the mobo motherboard light should also be on. as you said mouse and keyboard are not on it means your motherboard or CPU is not being powered. try checking the power connections to them again.
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November 18, 2013 4:26:00 AM

All of the fans, cpu, all of the case fans and the GPU fan. The connections are fine, I've checked them over and over again. I should ad that it works fine with the old GPU installed(I'm using it now) the old GPU is a Gigabyte nVidia Geforce GT 430. The mobo light is on(But it's always on if the PSU is plugged in) and one of the fans has a blue light in it that also comes on.
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November 18, 2013 4:36:52 AM

okay .. try attaching the old GPU ... then uninstalling the nvidia drivers.. then adding on the new one.. if this doesnt work im out of any ideas.. maybe somebody else can help.. ihave the same card and the PSU .. installed it myself and worked fine, but offcourse i did uninstall the existing video drivers...
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November 18, 2013 4:41:25 AM

I uninstalled the old GPU drivers the first time round. However I don't think that the wrong drivers would stop a computer from starting up entirely.

Anyone have any ideas?
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November 18, 2013 4:44:05 AM

Tydrodron said:
I uninstalled the old GPU drivers the first time round. However I don't think that the wrong drivers would stop a computer from starting up entirely.

Anyone have any ideas?


oh okay.. I thought your computer was starting but u were supplied on the monitor with any display, as you said all the components were powered on....
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November 18, 2013 4:51:29 AM

Alright, I'll try to clarify things better.

When I press the power button with the new GPU installed, all the fans will spin but nothing will happen. No lights on the Keyboard or mouse and no display. This only happens with the HD 7770 installed. It might be nothing but the GPU fan sort of stutters when it starts up, it takes longer than the other fans.
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November 18, 2013 5:08:34 AM

No, I am not trying to be an a*s or sound rude, but I answered your question.

It's not the answer you want, but it is the answer. You have a PCI-e 3.0 card and a PCI-e 2.0 motherboard. It is not the speeds (x16) but the protocol. Your pcie2 motherboard is not compatible with anything but pcie2. Regardless of speed.

This is not rocket science, the poor guy already got exited for a card he can't use, quit having him troubleshoot it.
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November 18, 2013 5:10:47 AM

"isn't PCIe x16 backwards compatible?" Most of my googling seems to suggest that it is
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November 18, 2013 5:11:58 AM

zz0zz0zz said:
No, I am not trying to be an a*s or sound rude, but I answered your question.

It's not the answer you want, but it is the answer. You have a PCI-e 3.0 card and a PCI-e 2.0 motherboard.

This is not rocket science, the poor guy already got exited for a card he can't use, quit having him troubleshoot it.



I have a PCIe 2.0 mother board and use this card.. its backward compatible.

http://www.tomshardware.com/forum/395706-33-will-pcie-c...

right this isn't rocket science, a bit of googling and a visit to tom reveals the truth...
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November 18, 2013 5:13:48 AM

Could the card be DoA?
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November 18, 2013 5:15:08 AM

It's the board itself, not the card. You can troubleshoot it until next year if it would satisfy you, or replace it with another 7770 and the problem will still be there. But by all means go ahead.
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November 18, 2013 5:15:57 AM

Tydrodron said:
Could the card be DoA?


Maybe.. i do not like Gigabyte cards, mine is a Sapphire ... wait, not to long, for any sugessions that might be helpful, otherwise get a replacement..
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November 18, 2013 5:17:31 AM

zz0zz0zz said:
It's the board itself, not the card. You can troubleshoot it until next year if it would satisfy you, or replace it with another 7770 and the problem will still be there. But by all means go ahead.


See, you cant deny a thing which is proven to be true, the motherboard might be an issue but surely its not the PCIe slot...
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November 18, 2013 5:19:06 AM

I have one other Mobo that could work, it's an ms 7525(That's the only info I have on it). I suppose it can't hurt to try that. I'll do it tomorrow however as it's 11pm here.

Thanks for all the help.
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November 18, 2013 5:24:23 AM

I did not realize this was an argument? I'm not here to bicker and deny things with you; I'm here to help the OP.

We are all here to help people no?

It is an obvious compatibility issue, and I have seen it, many many times. Usually with the r9 series. I have physically called AMD and double tapped with gigabyte and MSI. It seems to be isolated to a few radeon card/mobo setups. Just like you, I have personal experience; but on a much larger scale.

If this is in qurstion, OP, call your manufacturer or AMD and explain this. I know what they'll tell you.

Aditonally, there is a possibility, albeit very small, that it was DOA.
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November 18, 2013 5:42:42 AM

zz0zz0zz said:
I did not realize this was an argument? I'm not here to bicker and deny things with you; I'm here to help the OP.

We are all here to help people no?

It is an obvious compatibility issue, and I have seen it, many many times. Usually with the r9 series. I have physically called AMD and double tapped with gigabyte and MSI. It seems to be isolated to a few radeon card/mobo setups. Just like you, I have personal experience; but on a much larger scale.

If this is in qurstion, OP, call your manufacturer or AMD and explain this. I know what they'll tell you.

Aditonally, there is a possibility, albeit very small, that it was DOA.


well I am not arguing .. i was sharing something which i have experienced and trying to help .. it is supposed to be a discussion rather than an argument... AMD will offcourse will tell him to go according to specs, but pcie 1.0 and 2.0 compatibility with 3.0 is something which is real and it works

http://en.wikipedia.org/wiki/PCI_Express

check the section "PCI Express 3.0"
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November 18, 2013 6:09:17 AM

ASUS P5VD2-VM is a 6 year old mobo....its outdated and cannot support 7770....
the MSI MS-7525 that you recently mentioned can support 7770
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November 18, 2013 6:16:09 AM

What about the other one mentioned in the post just then? Could it work? I'm somewhat sure that it's better than the current one I'm using
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November 18, 2013 6:17:10 AM

the MSI MS-7525 that you recently mentioned can support 7770
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November 18, 2013 6:19:36 AM

Alright, I'll try it tomorrow. Thanks.
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November 18, 2013 6:57:37 AM

a1blaster said:
ASUS P5VD2-VM is a 6 year old mobo....its outdated and cannot support 7770....
the MSI MS-7525 that you recently mentioned can support 7770


I have a seven year old motherboard and a 7790 runs on it so why would a 7770 not run on a six year old board?
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November 18, 2013 10:49:09 AM

It is real, and works, the compatibility. But not on a and I quote 'select few' outdated boards, and some are not even outdated. I have never seen this problem with Nvidia, overpriced as they are (I still steer away from Nvidia in most cases), it seems to be localized with AMD. One of my customers had an Intel DP67BG, which is a much newer motherboard than either of yours, ran a PCI-e GTX 570 OC fine, but throw an HD or R9 PCI-E in, no go. Simply no go.

And yes, AMD will tell you to go with recommended I was eluding to the fact he should call AMD and describe the symptoms without letting on his setup. They will know exactly what he is talking about.

The technical details when it comes to combinations of dated mother boards and new AMD GPU's escape me, but it's real, it does happen, and I have seen it... a lot.
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November 18, 2013 11:15:58 AM

hi there i'm from indonesia...
i think old motherboard with pciex2.0 can accept hd7770
did u already clear CMOS ? try it
if nothing happen u can return your video card..that the video card problem

sory for my bad english
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November 18, 2013 7:34:05 PM

It did not work with the other motherboard. I am looking to have it replaced. Thanks for the help all.
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November 18, 2013 9:31:45 PM

Tydrodron said:
It did not work with the other motherboard. I am looking to have it replaced. Thanks for the help all.


Yrs good decision... seems like a bad card
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