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7950 Crossfire problems

post #1 of 2
Thread Starter 
So I finally got my second 7950, both are identical HIS7950's, firstly I had horrific flickering problems, did a clean install of drivers then down the line a but started getting horrifically bad performance and low GPU usage.
Clean install of drivers again and started getting problems with CCC with some kind of cli.implementation error.
Reformatted my drive and clean install of windows and drivers I can now open up CCC with one card installed and when I put in two I get a bsod 116 when windows loads it reboots and loads into windows with both cards disabled in device manager if I enable the cards and reboot I get the bsod again. Tried clean installs with the 13.1 and 13.2 beta 5 drivers both are no goes.
I have confirmed both cards work individually and they have no overclock on them CPU is also running at stock speeds. The rig is skeeb in my sig if you want anymore details.

Can anyone advise me on other things to do, please don't say "have you tried a clean install of X drivers?"
Project: Skeeb
(24 items)
 
 
Project "Skeeb"
(203 photos)
CPUMotherboardGraphicsGraphics
Intel Core i5 2500K Z68 Extreme4 Gen3 HIS HD 7950 HIS HD 7950 
RAMHard DriveOptical DriveCooling
Kingston HyperX T1 16gb Seagate barracuda 500gb  Sony Alphacool Livingstone 
CoolingCoolingCoolingCooling
XSPC EX360 Laing 3.25 18W Alphacool DDC top EK 250 basic res 
CoolingCoolingCoolingOS
XSPC 1/2 3/4 black nickel compression fittings Masterkleer 1/2, 3/4 Mayhems Deep Blue  Windows 7 Ultimate 64bit 
MonitorKeyboardPowerCase
Yamakasi Catleap Tesco Value Be quiet dark power pro 1000w Gigabyte sumo 5112 
MouseMouse PadAudioAudio
Dell mouse OCUK XXL mat Some Amp B&W 2003's 
CPUMotherboardGraphicsRAM
I3 2100 Asrock h61 ITX Power Color HD7770 Kingston hyperX 
Hard DriveCoolingOSMonitor
120gb WD 2.5" Thermaltake slim X3 Windows 7 Dell E2210H 
MonitorKeyboardPowerCase
Dell 17" 4:3 Tesco Value Cx430 High Calibre 
MouseMouse PadAudio
Dell laser mouse Blue cloth £2 in tesco Altec Lansing 2.1 
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Project: Skeeb
(24 items)
 
 
Project "Skeeb"
(203 photos)
CPUMotherboardGraphicsGraphics
Intel Core i5 2500K Z68 Extreme4 Gen3 HIS HD 7950 HIS HD 7950 
RAMHard DriveOptical DriveCooling
Kingston HyperX T1 16gb Seagate barracuda 500gb  Sony Alphacool Livingstone 
CoolingCoolingCoolingCooling
XSPC EX360 Laing 3.25 18W Alphacool DDC top EK 250 basic res 
CoolingCoolingCoolingOS
XSPC 1/2 3/4 black nickel compression fittings Masterkleer 1/2, 3/4 Mayhems Deep Blue  Windows 7 Ultimate 64bit 
MonitorKeyboardPowerCase
Yamakasi Catleap Tesco Value Be quiet dark power pro 1000w Gigabyte sumo 5112 
MouseMouse PadAudioAudio
Dell mouse OCUK XXL mat Some Amp B&W 2003's 
CPUMotherboardGraphicsRAM
I3 2100 Asrock h61 ITX Power Color HD7770 Kingston hyperX 
Hard DriveCoolingOSMonitor
120gb WD 2.5" Thermaltake slim X3 Windows 7 Dell E2210H 
MonitorKeyboardPowerCase
Dell 17" 4:3 Tesco Value Cx430 High Calibre 
MouseMouse PadAudio
Dell laser mouse Blue cloth £2 in tesco Altec Lansing 2.1 
  hide details  
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post #2 of 2
Hey Hamy144!
Congrats on second card.
I would start w/double checking power connections,esp if you have 6 pin extensions,etc.(loose pins/connections result in flickers on my setup)
Check your Crossfire "strap" for square fit,etc.
Also check to see that both BIOS switches are on the same #(Both #1 or both #2,not mixed)
Different motherboards have BIOS selections for 2 x cards,etc,not sure about your Blue model...
You may need to set a particular 16x lane as primary,etc.
Drivers have been wiggy as of late.13.1,13.2 work but sometimes take 2-3 installs to get CCC to be "openable"
Sorry,AMD drivers,well,fail.
I use MSI AB,sometimes "sync similar graphics cards" causes issues-
Set up each card individually(unlocking voltage,etc at your discretion)
I usually double check w/GPUZ,restart & recheck,then start playing.
Your OS/MB not recognizing second card sounds like power issue.
I know my system and have had no end of hassle,but loooove to see 186 f.p.s in Aliens vs Predator DX11 benchies!
Currently @ 1100/1400/1.630 mv/1.21 w/+20 boost. on both(Sapphire OC ),under water for 46c MAX!
It is a wonder when it does work!
Best of luck!
mistress
(23 items)
 
Zillagod
(20 items)
 
GF rig
(16 items)
 
CPUMotherboardGraphicsRAM
1090T Gigabyte 890fxa-ud5 rev 2.1 XFX 6870 1GB x2Crossfire w/6950 TFII coolers 16 GB(4x4)GSkill CL7 1333 
Hard DriveHard DriveHard DriveOptical Drive
Patriot Pyro SE 240 GB  OCZ Vertex 3 120GB( for Steam) WD Caviar Black 2TB HP 8xBD 
CoolingCoolingCoolingCooling
H100+(4 Cougar 120 PWM)  Cougar 120 PWM exhaust NZXT 180mm OE NZXT Sentry2 
OSMonitorKeyboardPower
W7 HP SP1 Vizio 47" TV Gyration low profile USB wireless/Logitech G110... Corsair HX 850 
CaseMouseMouse PadAudio
NZXT Panzerbox Gyration Airmouse Elite/Microsoft X5 Anything dark-corduroy pillow Creative PCI 
CPUMotherboardGraphicsRAM
AMD Phenom II 955B Gigabyte 890GPA-UD3H XFX (ug) 7850 G Skill Ripjaws X 16GB 4x4 1600  
Hard DriveHard DriveOptical DriveCooling
OCZ Vertex 3 240 GB Seagate 750 GB Momentus XT LG 12x BR/DVD  Cooler Master H70  
OSMonitorKeyboardPower
Cougar HDB 120 x5 AOC 22 MS 3000 v2 Ultra x3 1000 watt 
CaseMouseMouse PadAudio
Cougar Solution Mid Logitech Anywhere MX Generic Creative Audigy SE 
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mistress
(23 items)
 
Zillagod
(20 items)
 
GF rig
(16 items)
 
CPUMotherboardGraphicsRAM
1090T Gigabyte 890fxa-ud5 rev 2.1 XFX 6870 1GB x2Crossfire w/6950 TFII coolers 16 GB(4x4)GSkill CL7 1333 
Hard DriveHard DriveHard DriveOptical Drive
Patriot Pyro SE 240 GB  OCZ Vertex 3 120GB( for Steam) WD Caviar Black 2TB HP 8xBD 
CoolingCoolingCoolingCooling
H100+(4 Cougar 120 PWM)  Cougar 120 PWM exhaust NZXT 180mm OE NZXT Sentry2 
OSMonitorKeyboardPower
W7 HP SP1 Vizio 47" TV Gyration low profile USB wireless/Logitech G110... Corsair HX 850 
CaseMouseMouse PadAudio
NZXT Panzerbox Gyration Airmouse Elite/Microsoft X5 Anything dark-corduroy pillow Creative PCI 
CPUMotherboardGraphicsRAM
AMD Phenom II 955B Gigabyte 890GPA-UD3H XFX (ug) 7850 G Skill Ripjaws X 16GB 4x4 1600  
Hard DriveHard DriveOptical DriveCooling
OCZ Vertex 3 240 GB Seagate 750 GB Momentus XT LG 12x BR/DVD  Cooler Master H70  
OSMonitorKeyboardPower
Cougar HDB 120 x5 AOC 22 MS 3000 v2 Ultra x3 1000 watt 
CaseMouseMouse PadAudio
Cougar Solution Mid Logitech Anywhere MX Generic Creative Audigy SE 
  hide details  
Reply
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