I recently swapped out an old AMD HD 7750 1GB graphics card with a AMD HD XFX 7870GHz Edition, and from time to time, seemingly randomly, I would get screen flickers on my dual monitor setup. Both the monitors were brand new, and cables as well, and it will flicker even while idle. I am curious, because the first thing I thought might be wrong is the power supply being overdrawn, but from what I've heard that can't be the case. I just want to ask a more knowledgeable community and see what you guys think. Here are my current specs with the new 7870:
AMD FX-6100 3.3GHZ
1TB SATA III 7200 RPM 3.5" HARD DRIVE
GSKILL 16GB DDR3 16000MHZ RIPJAWS-X MEMORY
ASETEK 510LC 120MM WATERCOOLER
2 CASE FAN 120 MM
BLACK SAMSUNG 24X DVDRW
GIGABYTE GA-970A-D3 AM3+ CROSSFIRE USB3.0 SATA 3
XTREMEGEAR 700 WATT POWER SUPPLY
XFX Double D FX-787A-CDFC Radeon HD 7870 GHz Edition 2GB 256-Bit GDDR5 PCI Express 3.0 x16
AMD FX-6100 3.3GHZ
1TB SATA III 7200 RPM 3.5" HARD DRIVE
GSKILL 16GB DDR3 16000MHZ RIPJAWS-X MEMORY
ASETEK 510LC 120MM WATERCOOLER
2 CASE FAN 120 MM
BLACK SAMSUNG 24X DVDRW
GIGABYTE GA-970A-D3 AM3+ CROSSFIRE USB3.0 SATA 3
XTREMEGEAR 700 WATT POWER SUPPLY
XFX Double D FX-787A-CDFC Radeon HD 7870 GHz Edition 2GB 256-Bit GDDR5 PCI Express 3.0 x16