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Black Screen after overclocking r9 290x

post #1 of 11
Thread Starter 
Right after I overclock my sapphire r9 290x tri-x oc gpu I get screen glitching and then a black screen and I have to turn off my pc. The default settings work fine, 1040 gpu clock and 1300 memory clock, if I set the gpu clock to 1144, power to +20, and memory to 1400 it will black screen, right now I have it overclocked at theses settings:
I think the black screening is a result of overclocking the memory to high because its fine right now, but if I bump it up any more it will screen glitch and black screen, I just want to know why?
post #2 of 11
u need more voltage if u get black screen. Most likely from memory OC

Leave memory stock at 1250 and just overclock core.
    
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CPUMotherboardGraphicsRAM
Intel 4770k Haswell 3.9GHz @ 1.066v GIGABYTE GA-Z87X-OC MSI GeForce GTX 1080 Ti GAMING X 11G Samsung 16GB MV-3V4G3D/US 1600 7-8-8-24-1T 1.55... 
Hard DriveHard DriveOSMonitor
Samsung 850 Evo 500GB SSD 1TB Samsung F3 Windows 7 Ultimate 64-bit BenQ XL2411Z 24' 144hz, 1080p 
MonitorKeyboardPowerCase
Asus MS238H 23inch 2ms 1920x1080 Logitech G15 Enermax EMR1500EWT Fractal Design Define S with window 
MouseMouse PadAudio
Logitech G5 Razer Goliathus onboard motherboard 
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post #3 of 11
Thread Starter 
How can I increase my voltage for the memory clock?
post #4 of 11
Quote:
Originally Posted by forddylan15 View Post

How can I increase my voltage for the memory clock?
Add more core voltage. (core voltage and Internal memory controller voltage are controlled together on the 290)

Any time you get black screens in 2D or 3D with your 290, you'll either need more core voltage or lower the memory clocks to work with the current voltage.
GL thumb.gif
post #5 of 11
Thread Starter 
Ok thanks.
post #6 of 11
Thread Starter 

I finally got it stable, tested it in Unigine Valley and worked fine, top temp of around 65C(fan at 80%), and no screen glitches or anything, got my 10% oc, thanks a lot.
post #7 of 11
Thread Starter 
I spoke to soon, when I started playing Thief on max settings it played fine for about a half an hour and then it froze...reset, then I tested it on watch dogs and it played fine for about 45 min and then theses different colored spots appeared on my screen, I have no clue whats wrong with this thing now, any ideas?
post #8 of 11
Yep, your core overclock isn't stable.
Black Screens (in 2D or 3D) = Memory overclock unstable
Freezing/lockups (in 3D) = Core overclock unstable
post #9 of 11
Thread Starter 
So you think I should just keep card at default settings, you don't think I have a bad card, I just got it 3 days ago!
post #10 of 11
just drop your core clock back a little. 1100 or so, try it and if it works bump to 1110, try again til it fails then go back to the most recent that worked
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