HD5870 CF, stuttering!

ebilcake · 12 May 2010 at 19:10

Need some help, using 2x HD5870 and all my games have this annoying stutter with crossfire enabled, most noticabley in kombuster.

Is this caused by using the 16x and 8x pcie slot? I was getting the same problem before when I was using 2x16x but it seemed to go after a driver update.

Could this be a power issue?? Using a Corsair TX 750W.

cainer · 12 May 2010 at 19:20

should be ok with 750w, mine seem ok

edit: you said it went after a driver update last time, what drivers u using?

ebilcake · 12 May 2010 at 19:22

cainer said:
should be ok with 750w, mine seem ok

I'll try with the first two 16x slots again but I don't see why using 16x + 8x would cause stuttering like this.

Annoying because it was working fine last night, then thought lets move the card down one to reduce heat, argh, this better fix it.

EDIT: Sorry I should have said re-installed the driver and I've already tried this with no luck.

cainer · 12 May 2010 at 19:30

well if it was working fine then you moved the card and it stopped working fine....... do i need to finish?

ebilcake · 12 May 2010 at 19:50

cainer said:
well if it was working fine then you moved the card and it stopped working fine....... do i need to finish?

Still stuttering in the 16x slots, I've only been testing this since yesterday so it's possible the stuttering was never fixed but I was able to play a few game last night without any problems.

Would using different cards cause this? using Asus and Sapphire?

ebilcake · 12 May 2010 at 20:08

Ok, so I tried disabling and re-enabling crossfire like i've done a few times now which has has made no difference, however this time when disabled crossfire I lost the desktop backround and aero, then turned crossfire on again, got aero back and now the stutters gone. WTF ??

Gonna try a restart, see if it stays gone, I hate crossfire.

wolvers · 12 May 2010 at 20:08

Might be worth flashing the Sapphire with the Asus bios?

ebilcake · 12 May 2010 at 20:23

Nope stutters back after restart.

wolvers69 said:
Might be worth flashing the Sapphire with the Asus bios?

Which one? the older one from the thread? would it work if I just saved the bios from my Asus card flashed the sapphire with that?

Only asking because the one on the thread is the bios from launch.

Sycho · 12 May 2010 at 20:33

Are they the same clocks? tried different display type connection cable?

ebilcake · 12 May 2010 at 20:37

Sycho said:
Are they the same clocks? tried different display type connection cable?

Yes the cards clocked the same, why would it be anything to do with cable?

Anyway, I've flashed a sapphire card and the stutter is still there, nothing to do with the bios.

Sycho · 12 May 2010 at 21:01

ebilcake said:
Yes the cards clocked the same, why would it be anything to do with cable?

Anyway, I've flashed a sapphire card and the stutter is still there, nothing to do with the bios.

Read a few threads where people changed DVI cable or the connection port and it's stopped but might not be in this case.

ebilcake · 12 May 2010 at 21:04

Sycho said:
Read a few threads where people changed DVI cable or the connection port and it's stopped but might not be in this case.

Just plugged HDMI cable, switching between them there is no difference

GJ02 · 12 May 2010 at 21:07

do you use msi afterburner ?
if you do, and you have ATI CCC running at the same time it WILL cause stuttering.
Dont know why, but I had this with my 5870 xfire, tiny stutters.
disable CCC and just have afterburner running.
Im usre this will solve your issue.....it did for me, and I was glad I figured it out, I think BigBruserAl pointed me on this..

ebilcake · 12 May 2010 at 21:18

userunknown said:
do you use msi afterburner ?
if you do, and you have ATI CCC running at the same time it WILL cause stuttering.
Dont know why, but I had this with my 5870 xfire, tiny stutters.
disable CCC and just have afterburner running.
Im usre this will solve your issue.....it did for me, and I was glad I figured it out, I think BigBruserAl pointed me on this..

No, i'm just loading kombuster and CCC isnt even open. Shame it's not that simple.

GJ02 · 12 May 2010 at 21:25

so ccc isnt in the icon tray by the clock no ?

BigBruiserAl · 12 May 2010 at 21:27

userunknown said:
it did for me, and I was glad I figured it out, I think BigBruserAl pointed me on this..

someone call meh

worked for me too

ebilcake · 12 May 2010 at 21:30

userunknown said:
so ccc isnt in the icon tray by the clock no ?

Nope, I disabled the system tray menu.

Anything else I need to disable?

GJ02 · 12 May 2010 at 21:35

what happens if you disable kombustor
same ? ?

have you looked to see if CCC is still apparent via msconfig ?

when you say stuttering is it ever so slight, but enuff to bug the hell out of you ? it does sound like the same issue i had

ebilcake · 12 May 2010 at 22:00

userunknown said:
what happens if you disable kombustor
same ? ?

have you looked to see if CCC is still apparent via msconfig ?

when you say stuttering is it ever so slight, but enuff to bug the hell out of you ? it does sound like the same issue i had

Same, less visable in game but it's still there and noticable.

Well it's a very slight but constant like it's skipping a frame, I can't see CCC running in task manager.

GJ02 · 12 May 2010 at 22:04

hmmm very strange !
i was kinda hoping you did have CCC running as im alnots 100% sure that would be the prob, but as you dont have it running im lost now ???