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HD 7950 hash problems

post #1 of 4
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Hey guys, I've been mining for 2 months now and one of my card, an MSI Twin Frozr HD 7950 has been running with stock voltage @ 1125/1650 never went above 65c at 660-690kh/s and 2 days ago it started crashing once a day and it doesn't want to go anywhere near 600-610kh/s.

Any one know what's causing this?
idk
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idk
(15 items)
 
 
CPUMotherboardGraphicsGraphics
i5 3570k p8z77-v pro sapphire hd 7950 sapphire hd 7950 
RAMHard DriveCoolingOS
samsung eco samsung f3 1tb corsair h100i windows 7 
MonitorKeyboardPowerCase
asus vh238h cooler master quickfire tk rosewill capstone 650 fractal design define r4 
MouseMouse PadAudio
corsair m60 steelseries qck+ rokkit 5 
CPUMotherboardGraphicsGraphics
i7 3570k ASRock Z77 WS sapphire hd 7950 flex sapphire hd 7950 flex 
GraphicsGraphicsRAMHard Drive
sapphire hd 7950 flex sapphire hd 7950 flex corsair vengeance 8gb 1866 samsung 840 120gb 
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post #2 of 4
Quote:
Originally Posted by gtsteviiee View Post

Hey guys, I've been mining for 2 months now and one of my card, an MSI Twin Frozr HD 7950 has been running with stock voltage @ 1125/1650 never went above 65c at 660-690kh/s and 2 days ago it started crashing once a day and it doesn't want to go anywhere near 600-610kh/s.

Any one know what's causing this?
1125/1650 @ stock voltage damn you've got some good card there.
post #3 of 4
Maybe try reinstalling the drivers, I've heard sometimes that fixes these crashes.
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750TIMINER2
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Number Cruncher
(16 items)
 
HTPC
(11 items)
 
750TIMINER2
(15 items)
 
CPUMotherboardGraphicsRAM
i7 2600k ASUS Sabertooth Z77 Sapphire 290 Tri-x 4GB OC CORSAIR Vengeance 16GB 
Hard DriveHard DriveHard DriveOptical Drive
Intel 520 120 GB SSD Seagate Barracuda 1 TB 250GB Samsung 840 EVO SSD LG Blu-Ray Lightscribe Combo Burner 
CoolingOSMonitorPower
Swiftech H320 (CPU only) Windows 7 Ultimate 27" Shimian 1440p Monitor 1000W Corsair PSU 
CaseMouseMouse PadAudio
800D custom painted and fixed up! 15 year old Microsoft Custom Minecraft Mousepad Logitech 2.1 Speakers (wub wubbity wub wub) 
CPUMotherboardGraphicsRAM
i5 3570k MSI Z68 MA-ED55 MSI GTX 750 Ti 6GB Corsair XMP 
Hard DriveOptical DriveCoolingOS
500GB WD Blue ASUS DVD Burner Hyper 212+ Windows 8.1 
PowerCase
Rosewill HIVE 750W Rosewill Blackbone 
CPUMotherboardGraphicsRAM
AMD Sempron 145 Gigabyte 990FXA-UD3 4x MSI GTX 750 Ti 6 GB Corsair XMP 
Hard DriveCoolingOSMonitor
500 GB Seagate Barracuda Stock Windows 7 LG 20" 900p display 
KeyboardPowerCaseMouse
Dell generic Rosewill HIVE 750W Rosewill Thor V2 Dell generic 
Other
4x USB Powered Risers 
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post #4 of 4
v-ram could be going bad, SMD caps degrading, vrms throttling, a simple unstable OC... the possibilities are endless. Might want to bump the voltage or lower clocks a bit and see where it goes from there.
Edited by computerparts - 7/8/13 at 11:36am
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