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7950 Crossfire Usage issues..

I have given up. The faulty card with a dodgy fan is going to be RMA'd and the other I will DSR and get a refund. I have wasted an evening trying to get these going and it's not happening for whatever reason.

I have thrown in the towel on these cards..
 
Which cards are they specifically? I've got 2 HIS cards and they work exactly as they should.

Is it possibly that these are boost editions and the boosting is messing up causing this to happen?

A BIOS flash could be a resolution.
 
spoffle said:
Which cards are they specifically? I've got 2 HIS cards and they work exactly as they should.

Is it possibly that these are boost editions and the boosting is messing up causing this to happen?

A BIOS flash could be a resolution.
Click to expand...

They are HIS 7950 ice-q Boost cards.

Tbh I have had enough they have depleted me and I have no love for them now. They should work as advertised without the need for bios flashing.

I will return these and ponder over something to replace them with.
 
I had this with my his boost bios, god knows if it was down to silly boost volts or just that they change their speeds ad hoc due to the boost (more pita than its worth imho) took multiple driver installs and found oc-ing via ccc made it most stable. With AB it was dire. No issues at all on a giga 7970 ghz bios I now run.
 
Sounds like GHz/Boost clock spikes kicking in, I had that problem with Ice-Q/TFIII combination and chucked the TFIII for another Ice-Q and all is well now with no spikes.

It's more an issue with oc's though I thought than with stock clocks, but here's something to try.

Before I start, if it's the big blowers moogley like mine, AB only applies clocks, it doesn't move voltage even though it reports it does, so don't use AB or any other oc tools.

If you want to use AB OSD you still can, but you need to open it after you have worked in His iTool but make sure you don't change any clocks/voltage.

1. In your case moogley, download and install His iTool>restart.

2. Download ULPS GUI Config Utility (enable/disable) reg entries from here:

http://www.overclock.net/t/1088266/ulps-gui-config-utility-enable-disable

(I think it only works on W7 but you can try on W8)

Right click disableulps.reg file-run as administrator>restart.

Or manually disable ulps>restart, but the above is simpler.

3. Open His iTool and set the settings like so:

Capture.png


If it still spikes, manually set the voltage on the core to +1 and give it a try and also set 'and restore clocks'.

Let me know how you get on.

@Rossi, you can try out the steps too but use the asus tool instead to force constant voltage if you can.
 
Thracks said:
Is the GPU usage falloff matched by a corresponding falloff in GPU clock, say to 500MHz or less?
Click to expand...

Hi there

I did not notice any GPU clock Falloff tbh just the usage being all over the place across both cards. It was up and down like mad and unable to keep a constant level even with the cards at stock 7950 clocks.

I have boxed them back up now for return as one of them has a really noisy fan that was getting worse.
 
MOOGLEYS said:
They are HIS 7950 ice-q Boost cards.

Tbh I have had enough they have depleted me and I have no love for them now. They should work as advertised without the need for bios flashing.

I will return these and ponder over something to replace them with.
Click to expand...

I had the same cards and had nothing but trouble with them, nothing wrong with the cards themselves as far as testing each one, but they boosted whenever they felt like it, temps were all over the place and gaming was a bit hit and miss, whether in crossfire or not, I tried just about everything including all the advice offered here and more, it just became too much hassle....hense why I sold them on and returned to a single card solution from nvidia.
 
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Just to add more confusion I have this morning borrowed a pair of reference 7950 cards and these are now in my pc running crossfire and the usage is staying above %98 with no drops or crazy fluctuating FPS.

There must be something with either these HIS cards or the Boost bios that is causing them to go crazy when in crossfire. Even setting them to stock 7950 clocks did not fix the problem so tbh I have no idea. I have asked for an RMA for the card with the dodgy fan and will DSR the other and look for something else.
 
MOOGLEYS said:
Just to add more confusion I have this morning borrowed a pair of reference 7950 cards and these are now in my pc running crossfire and the usage is staying above %98 with no drops or crazy fluctuating FPS.

There must be something with either these HIS cards or the Boost bios that is causing them to go crazy when in crossfire. Even setting them to stock 7950 clocks did not fix the problem so tbh I have no idea. I have asked for an RMA for the card with the dodgy fan and will DSR the other and look for something else.
Click to expand...

Well what do you know.

LtMatt said:
Are both the cards fully stable and working ok? I see gpu usage drops when my card is unstable more often than not.
Click to expand...

The AMD driver team will sleep easy tonight.

Glad you got it all sorted Moog. :)
 
MOOGLEYS said:
Just to add more confusion I have this morning borrowed a pair of reference 7950 cards and these are now in my pc running crossfire and the usage is staying above %98 with no drops or crazy fluctuating FPS.

There must be something with either these HIS cards or the Boost bios that is causing them to go crazy when in crossfire. Even setting them to stock 7950 clocks did not fix the problem so tbh I have no idea. I have asked for an RMA for the card with the dodgy fan and will DSR the other and look for something else.
Click to expand...

Aye, I have read others having a problem with the boost bios, I just didn't want to take the risk with buying different 7950s or a 7970, so I just went back to what I had experience with.
 
MOOGLEYS said:
Just to add more confusion I have this morning borrowed a pair of reference 7950 cards and these are now in my pc running crossfire and the usage is staying above %98 with no drops or crazy fluctuating FPS.

There must be something with either these HIS cards or the Boost bios that is causing them to go crazy when in crossfire. Even setting them to stock 7950 clocks did not fix the problem so tbh I have no idea. I have asked for an RMA for the card with the dodgy fan and will DSR the other and look for something else.
Click to expand...

Interesting.... Obviously my Matrix Platinums are of the Boost variety, so there is a connection there.
 
I won't use "synchronize carbs in multi-gpu config" because one of my cards is 77% asic and 0.993V default and the other one is 72,5% asic and 1.031V default, if I use that, it will push the 2nd card voltage down and the system will become instable.
 
Drangueos said:
I won't use "synchronize carbs in multi-gpu config" because one of my cards is 77% asic and 0.993V default and the other one is 72,5% asic and 1.031V default, if I use that, it will push the 2nd card voltage down and the system will become instable.
Click to expand...

That's a good tip. That option is in afterburner right?
 
Drangueos said:
I won't use "synchronize carbs in multi-gpu config" because one of my cards is 77% asic and 0.993V default and the other one is 72,5% asic and 1.031V default, if I use that, it will push the 2nd card voltage down and the system will become instable.
Click to expand...

????

In crossfire you can run each card with its own clocks and voltages. they dont have to be the same.
 
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