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HD 7770 crossfire issues

rustys_mk1

rustys_mk1

rustys_mk1

Associate
Joined
27 Mar 2014
Posts
14
Just put a second XFX HD7770 in my rig last night and ended up with all sorts of issues main one being windows restarting when you click pretty much anything. I get blue screen with a ton of text that flies past so fast I can't read it then windows reboots asks if I want to restart windows normally. When windows loads back up it says it experienced an unexpected shutdown do you want to check for a fix click ok and nothing really happens and window closes to desktop then rinse and repeat. Seems to run fine with 1 card disconnected. Any help would be great never set up crossfire before so might be missing something obvious. set up is:

MSI Z77A-GD65
I5 3570k at stock speeds
8gb (2x4gb) Corsair vengeance 1600mhz
2x XFX HD7770 double dissipation models
cx600m psu
60gb kingston SSD
320gb seagate HDD
Case is all nice and neat wiring wise and should have decent airflow with 2 intake fans at front, 1 blowing on the gpus and and exhaust at the rear.

Just hoping I haven't underestimated the power needed I did a calculator and it came out at about 480w iirc so thought it would be fine...:confused:
 
WHat is the BSOD message? You may need to up the core voltage/dram voltage/vccio voltage on your motherboard with an extra card installed.

EDIT

Also one Rusty is more than enough for this forum. :p
 
So if I need to up the voltages what are safe limits or what should I be aiming for? This also brings me to another problem I'm having with the BIOS I've already posted another thread in the motherboard section...
http://forums.overclockers.co.uk/showthread.php?t=18589951
When I enter the BIOS using my gpu hdmi out I can't see the whole screen maybes a quarter really close up. If I disconnect the gpu and use the mobo HDMI it's fine. I'm assuming I'm going to need the gpu's in and working to change the settings for them in BIOS or the mobo won;t detect them correct? I could use click bios in windows but no doubt it will crash.
 
Before my gtx770 I had two asus hd7770 in crossfire and I had an issue at first with it crashing during benchmarks after I added the second card. ( I'd had the first one months). I took both cards out fitted the new one on its own and found it was faulty rma'd it and it worked fine with a replacement. Have you tried running just the new card in your system on its own?
 
I'd try taking one card out, completely uninstall the video driver, replace the card and install the latest Catalyst
 
+1 for re installing drivers too. I updated mine to a beta driver from the asus site and windows kept crashing bsod as soon as it loaded. I had to start in safe mode uninstall that driver, then boot into windows normally using the onboard graphics and re install the latest complete drivers from asus.
 
I'll try both of the above tonight. At work all day today unfortunately. I think the new card is ok though as I set it in the top pci slot as I figured the newer card would handle the heat better. thats the card I now have currently running in the system although I haven't done any benchmarks with it as I got sick of messing around at 3am and went to bed...LOL!
 
When it comes to that sort of thing I'm clueless I'm afraid. The faulty card on its own was fine in windows but as soon as I started running unigine heaven 4.0 it crashed. I never tried it in a game. It's replacement worked sweet straight out of the box.

Also I don't know what xfx thermal compound is like but my asus cards were the 2gb with 2 fans and used to top 100 deg c so I removed the cooler and on both cards the thermal compound was rock hard like set concrete so I carefully scraped it off with a Stanley blade cleaned both surfaces with an alcohol wipe and applied ic diamond. Both cards ran at 70deg c after that.
 
It hasn't ran long enough without rebooting for the cards to get hot yet! I added the side fan as part of adding the second gpu as a just incase but will keep an eye on temps when I've got things running and will consider some better thermal compound.
 
Try the above steps first but you can disable the automatic restart on BSOD in the advanced system properties > startup and recovery dialogue
 
Done all of the above and it seems to be sorted now. Uninstalled all the drivers and removed 1 card leaving the new one in. Re installed the drivers dirext from amd site rather than disc. Benchmarked in heaven 4.0 to make sure the card wasnt doa and didnt get a bsod. Installed second card and setup xfire using matts guide I found. Then benchmarked again in heaven on highest settings and furmark and all seems good! Thanks for the help! Now for some gaming......
 
Yeah I know it sucks just wanted to load the cards and see what happened. Both of the are hitting 97-99% usage in furmark and heaven. Will oc the cpu next then have a look at oc the cards after that.
 
Only reason I used furmark is I know it makes cards run hot and I wanted to see how hot my top card would get. It peaked at 75 bottom card about 69. They do similar at idle about 5 degrees difference this sound ok?
 
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