• Competitor rules

    Please remember that any mention of competitors, hinting at competitors or offering to provide details of competitors will result in an account suspension. The full rules can be found under the 'Terms and Rules' link in the bottom right corner of your screen. Just don't mention competitors in any way, shape or form and you'll be OK.

HIS 7950 - Fubarred/Incompatible?

Enfield

Enfield

Enfield

Soldato
Joined
8 Nov 2003
Posts
7,409
Location
UK
Hi all,

I recently purchased the HIS HD 7950 IceQ BOOST 3072MB graphics card which replaced the Gigabyte GeForce GTX 560Ti OC.

I couldn't get my system to boot at first with the 7950 in it, but resetting the CMOS fixed that. Then only to find that loading a game (Arma 2) or 3dMark, my PC crashes.

I thought just to be sure to eliminate software faults, I will wipe my hard drive and start over (which I've just done this morning) and it still occurs.

I don't know what to do to be honest... please help!! :(

Specs:

Asrock Z68 Extreme4
Intel i7 2600k
Kingston HyperX Genesis 1600Mhz (16GB)
Antec TruePower New Modular 750W '80 Plus Bronze'
 
It might be worth checking you have the latest bios for your motherboard.

Move the GPU to another slot?

Make sure the PCI-X power connectors are secure at both ends?

Also see if using Afterburner try and bump up the core voltage a little to see if that stabilises it?

It could be happening when it boosts from the 850 clock to 925?

Regards.

C.
 
Hi, my system is overclocked from 3.4GHz to 4.6GHz. I have tried it at stock, BIOS was already up-to-date and I have also tried a beta bios.

I have also tried the beta catalyst drivers...

It's all fitted in snuggly. I shall try the afterburner thing - see if that works. Can I stop it from boosting the clock speed? And how much should I change the voltage by?
 
Last edited:
Another horrible thought could be your PSU cannot handle the extra load. As much as it is a good unit and well within the min spec.

Which can cause:

bad 3D performance
crashing games
spontaneous reset or imminent shutdown of the PC
freezing during gameplay
PSU overload can cause it to break down
 
Enfield said:
Hi, my system is overclocked from 3.4GHz to 4.6GHz. I have tried it at stock, BIOS was already up-to-date and I have also tried a beta bios.

I have also tried the beta catalyst drivers...

It's all fitted in snuggly. I shall try the afterburner thing - see if that works. Can I stop it from boosting the clock speed? And how much should I change the voltage by?
Click to expand...

Upto 1.25ish volts, Afterburner allows upto 1.3V and TRIXX allows upto 1.35V.

I would strongly suggest looking at 1.2ish V and working around that figure.

The VDDC for my card at 1050/1500 is 1.215 - 1.225.

Hope this helps.

The Guru of 3D article for an HD 7950 HIS suggest the following for an overclock:

These figures should be safe.

Increase power limiter towards 120%
Set Voltage at 1250 mV
Increase core clock frequency to 1150 MHz
Fix fan RPM at 40% (slightly more noisy)
And alternatively set your memory clock a bit higher at say 1350 MHz.

Don't quote me quote them.

Regards.

C.
 
The HD 7950 will be pulling approx 30 watts extra at load.

Could be that your PSU has a weak rail? ie failing.

I don't suppose you have a spare to slave in just in case?
 
No, no spare - it's not even two years old...

I was lead to believe at the original time of purchase that the PSU could easily handle x2 graphics cards...

I'm going to ask them to refund me, I've had enough..
 
Last edited:
Thanks very much for your help. Didn't bother with faffing with the voltages and that in all honesty; it should just work.

Fingers crossed that it is actually faulty and not something faulty with my system, i.e. my PSU as you suggested.
 
Got it working!! :D

After installing Windows 8 I noticed that there was a 'windows.old' folder saved, which obviously meant that I had formatted the wrong hard drive. So, I formatted (low-level) the correct one and loaded Windows 7 and the graphics card is now working.

Though I had removed my wireless PCI card, which could be that which was causing a problem, but I doubt it.
 
Having the exact same issue.

Cleansed CCC and Driver for my about to be RMA'd Sapphire 7870.

Shut down PC swapping out 7870 for the HIS IceQ Boost 7950.

Powered up - no display input and no HDD activity.

Removed 7950 and PC boots normally.

Re-install 7870 and PC boots normally.

Reset BIOS (removing O/C) and re-fitted 7950.

PC now boots, but BSODs at Windows start.

I wonder if I'll be the first person to have 2 graphics cards under RMA simultaneously..

700W Coolermaster Silent Pro Gold PSU, ASUS P8P67 with latest BIOS (3602) and 16GB of Corsair RAM.
 
I had issues like that, if you have on board graphics, uninstall all graphics drivers, load all fail safes on the bios. Get rid of all over clocking.
Reboot then install the latest and software. Reboot plug in gpu and make sure it's in their firmly and all power cables are in.
Give it a whirl and presto it should work
 
I think it was just Windows messing about. It's all working good now after a low level format.

Just been playing Bioshock Infinite on all the highest settings and it's working work. Arma 2 lags a little in places, but only a little.
 
All drivers cleaned out. PCI sound card removed. All O/C removed.

Boots and loads properly when GPU uninstalled via device manager. Once GPU and correct drivers are correctly installed, there's a 50/50 chance of BSOD after Win 7 starts initialising.

Once it BSODs, it will do this every boot until I use safe mode to uninstall the 7950 again.

Unless there's some PCI-E settings I've never touched before in P8P67 BIOS, I'm damned if I know what's going on...
 
You must log in or register to reply here.
Back
Top Bottom