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+--- Thread: SAPPHIRE HD 7970 6GB Vapor-X Edition issue (/thread-2901.html)
SAPPHIRE HD 7970 6GB Vapor-X Edition issue - n0vice - 12-09-2013
Abovesaid card goes from 48 degrees to 90 in 2 minutes while running hashcat on win 7 x64 using latest catalyst beta, while battlefield 3 can't burn it higher than 68 degrees.
I have a nice case with proper airflow, sensors on cpu and hdds don't go above 34, where to digg?
RE: SAPPHIRE HD 7970 6GB Vapor-X Edition issue - mastercracker - 12-09-2013
It depends. What case do you have? What is considered "proper" airflow? There is a lot of little things that can be done that might help or not:
-Remove dust from card and it's fans
-Replace thermal coumpound
-Add delta fans
-Reduce memory clock of the card
RE: SAPPHIRE HD 7970 6GB Vapor-X Edition issue - n0vice - 12-09-2013
The card is brand new without any traces of dust
I have Cooler Master HAF XB (RC-902XB-KKN1) with all possible fans installed/
RE: SAPPHIRE HD 7970 6GB Vapor-X Edition issue - Si2006 - 12-09-2013
you'll need to leave the the side panels off to let that hot air escape quicker, like a kind of hybrid open air system, it may not be pretty and leave you system albeit, more vulnerable to accidents!
A low ambient will help so keep it away from a corner, off the floor and away from anything that generates heat, like a radiator
you gfx card is not designed for hash cracking purposes so you'll have accommodate for this, especially for dual gpu.
buy a much larger case with fans that move a lot of air or watercool it if you want to take a risk! thought its not recommended.
my 0.02$
RE: SAPPHIRE HD 7970 6GB Vapor-X Edition issue - KT819GM - 12-10-2013
Or simply set fan speed manually, for AMD is normal to hold @90C, so auto fans will be as silent as possible till that temperature. ~60-70% of fan speed should be able to hold your card at 60-70C.
RE: SAPPHIRE HD 7970 6GB Vapor-X Edition issue - n0vice - 12-11-2013
Thanks for advice.
Locked the coolers at 60% and the core clock at 900 MHZ, that gave me the stable output of 115KH/sec on wpa cracking with heat sensor dancing around 80 degrees.
Unfortunatelly even constant cooler lock at 100% with core set to 1100 MHZ runs the card to 90 degrees in 90 seconds causing hashcat to stop.
RE: SAPPHIRE HD 7970 6GB Vapor-X Edition issue - radix - 12-11-2013
sounds like ambient temp is too high or the airflow to the card is obstructed.
RE: SAPPHIRE HD 7970 6GB Vapor-X Edition issue - epixoip - 12-12-2013
buy a reference card next time
