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5770 no display

post #1 of 15
Thread Starter 
I've recently purchased an HD5770 off of ebay that had had a more efficient cooling solution applied (background). I've had a 5770 for a couple years already, and not had any problems with it, but decided i wanted to try crossfire because i'd heard that the performance of 5770s in crossfire is excellent.

The problem

If i have it as the only video card, the computer will boot and fans spin (etc.), but my monitor displays only "No signal" before going into sleep mode. If i have it in crossfire and the dvi/vga/hdmi cable (tried all three) is plugged into the new card, the same thing happens. If i have the dvi/vga cable plugged into the old card the same thing happens, but if the hdmi cable is plugged into the old card, the monitor behaves normally. The computer will boot, i can get into the BIOS, and it will show the Win 7 loading screen before it boots completely into Windows, but will freeze just a second before it boots completely.

Is there anything i can do? The seller said the card was working when he sent it. It crossed international lines (Canada-->U.S.), but the packaging was excellent (anti-static bag, foam peanuts, etc.)

Also, if this is in the wrong place, where should i post it?

Thank you in advance, kind people who know things about computers. :-)

Mod edit: Please use descriptive titles.
post #2 of 15
Quote:
Originally Posted by BrotherToBattle View Post

I've recently purchased an HD5770 off of ebay that had had a more efficient cooling solution applied (background). I've had a 5770 for a couple years already, and not had any problems with it, but decided i wanted to try crossfire because i'd heard that the performance of 5770s in crossfire is excellent.
The problem
If i have it as the only video card, the computer will boot and fans spin (etc.), but my monitor displays only "No signal" before going into sleep mode. If i have it in crossfire and the dvi/vga/hdmi cable (tried all three) is plugged into the new card, the same thing happens. If i have the dvi/vga cable plugged into the old card the same thing happens, but if the hdmi cable is plugged into the old card, the monitor behaves normally. The computer will boot, i can get into the BIOS, and it will show the Win 7 loading screen before it boots completely into Windows, but will freeze just a second before it boots completely.
Is there anything i can do? The seller said the card was working when he sent it. It crossed international lines (Canada-->U.S.), but the packaging was excellent (anti-static bag, foam peanuts, etc.)
Also, if this is in the wrong place, where should i post it?
Thank you in advance, kind people who know things about computers. :-)


try useing old card to install drivers then switch theme
post #3 of 15
kk same as the repuplic was saying... put your old card back in and go back to your "normal" config before the card. Go into program uninstall (or CCleaner which is way better) and uninstall catalyis. all the way. Then you need to pick up Driver Sweeper link is HERE. Once installed, check ATI Drivers and clean.

Now, shut down, place both cards in, connect your CXF cable and make everything happy..... reboot, once in go to AMD site and redownload/install all three from this page, link is HERE... you want it all. reboot and you should be golden...

Remember when checking your performance, crossfire ONLY works in fullscreen mode so if your using afterburner for management, dont go off of kumboston... it wont work.

HOPE THIS HELPS!!!!!!!!!! GOOD LUCK
Edited by TheBigSkysky - 8/8/12 at 6:11pm
post #4 of 15
Thread Starter 
Thanks for the advice. I've done something similar to that once before, but i'll try it again and report back. Unfortunately i'm on vacation and can't try it for a few days. :-/
post #5 of 15
yea no biggy.... had some trouble when i first CXF my 6950's and that seemed to do the trick... good luck
post #6 of 15
Thread Starter 
I tried it multiple times with multiple restarts, and it didn't work. Back to square one? Is square one, in this case, I'm screwed?
post #7 of 15
sorry for the late reply and you probably have already did something else but idk where to go from there then man... its seems weird to me. sorry i couldnt help
post #8 of 15
What's your power supply. I'm throwing ideas at a wall here, but perhaps you don't have sufficient oomph to run both cards?
    
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CPUMotherboardGraphicsRAM
G850 ASRock H61M-GS MSI Twin Frozr 650ti Patriot 2x2GB 
Hard DriveCoolingPowerMouse
Barracuda 500GB HR-02 Macho Rosewill Green 430 Mionix Naos 3200 
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post #9 of 15
You will need to go into bios and set it to run in crossfire.
post #10 of 15
Thread Starter 
Quote:
Originally Posted by MisterFred View Post

What's your power supply. I'm throwing ideas at a wall here, but perhaps you don't have sufficient oomph to run both cards?

I have a 650W Antec earthwatts powersupply. I'm not sure on the specific voltages on the rails (etc.), but it should be good enough for two 5770s...?
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