Sign-in / Sign-up
Your question
Solved

Sapphire HD 7970 OC 3GB Overclocking Problem

Tags:
  • Overclocking
  • HD
  • Sapphire
  • Graphics
Last response: in Graphics Cards
August 19, 2013 1:31:44 PM

Hey guys! 2 months ago I bought the Sapphire HD 7970 OC Boost 3GB GPU and I've had problems when it comes to overclocking. I've achieved an overclock of 1100/1500Mhz (Core Clock/Memory Clock) and I had to bump the voltage up to 1.25 Volts. I've tested this overclock mostly on Battlefield 3 and sometimes it crashes and other times I get artifacts. I've seen guys achieve higher clocks at STOCK VOLTAGE! Here's my system:

Gigabyte Z87-HD3 Mobo
Intel Core i5 4670k CPU (not overclocked until I get an aftermarket cooler)
Corsair Vengeance 8GB DDR3 1600Mhz RAM
Sapphire HD 7970 OC Boost 3GB GPU
Samsung 840 Series 120GB SSD
WD 1TB Caviar Blue HDD
LG DVD-RW
Corsair Enthusiast Series TX850 V2
Windows 7 Ultimate 64-bit

What could the problem be? Should I return the card?

More about : sapphire 7970 3gb overclocking problem

Best solution

a c 94 K Overclocking
August 19, 2013 1:42:53 PM

overclocking isn't guaranteed. you're bumping the voltage a lot, and likely are overheating the card which is likely causing the artifacts and crashing. I'd return the voltage to stock and see how far you can get on that before touching the voltage.

Your symptoms are pretty common with overheating cards, and the 7970 is a hot gpu. what temps are you getting in BF3? Whats your case and case airflow like? Try popping the side of your case open and sticking a fan into the openning, angle it so it's blowing across the 7970 and see if the problem goes away.

I'm willing to be it's temps causing your main issue, as for the overclocking headroom? that will be different on every card. And i don't think you have grounds for returning a fully functional gpu. any merchant worth a hill of beans will test it, see its fully functional and just ship it back to you.
Share
August 19, 2013 2:04:53 PM

Nobody said anything about high temperatures. My temps are fine (around 65-66 degrees under full load). As for returning the GPU, you're right, I can't return a fully functional GPU. I only have 1 case fan that pulls air into the case and still get good temps.
m
0
l
Related resources
a c 94 K Overclocking
August 19, 2013 2:23:37 PM

GreekDude97 said:
Nobody said anything about high temperatures. My temps are fine (around 65-66 degrees under full load). As for returning the GPU, you're right, I can't return a fully functional GPU. I only have 1 case fan that pulls air into the case and still get good temps.


you can still be overheating the vram... not all have great cooling. The card might also be reporting temps incorrectly. try what i suggested and see if the issue goes away; if it doesn't do anything for you, then we can look at other possibilities.
m
0
l
August 19, 2013 2:28:32 PM

ingtar33 said:
GreekDude97 said:
Nobody said anything about high temperatures. My temps are fine (around 65-66 degrees under full load). As for returning the GPU, you're right, I can't return a fully functional GPU. I only have 1 case fan that pulls air into the case and still get good temps.


you can still be overheating the vram... not all have great cooling. The card might also be reporting temps incorrectly. try what i suggested and see if the issue goes away; if it doesn't do anything for you, then we can look at other possibilities.


I'll try installing 2 Corsair AF120 and see if that fixes the problem.
m
0
l