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vtx hd 5770, overclocking problems

post #1 of 8
Thread Starter 
so i just built me a gaming pc, got a hd 5770 i overclock it but games become unstable when i do, even if ccc test says it passed, by games unstable i mean like graphical glitches, when i undo the overclock they work fine again, what i dont understand is ive read a few posts where people have said theyve maxed the ccc overclock without problems, so then why cant i ?
system specs
i5 quad core sandy bridge, 3.10ghz
asus p8z68-v mobo
8gb gskill ripjaw
windows 7 64 bit
80gb hard drive
600 watt corsair psu

thanks for any help
post #2 of 8
Overclocking isn't guaranteed. The 5770 however tends to be a decent overclocker, so start with small increments and work your way up testing with MSI Kombustor and games. Also, some people may have cards that support voltage increases for the core/memory to improve stability at higher clock speeds.
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Wallet Flusher
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post #3 of 8
Thread Starter 
thanks for the reply it does let me overclock a tiny bit, but i dont get how others can do max no problem but i cant, is there any reason for that?? im no expert, complete neewbie.
post #4 of 8
Thread Starter 
also it makes me think im not gettin the most out of my card, or that something is wrong
post #5 of 8
Im going to suggest you OC with MSI Afterburner, I couldn't get any sort of OC on my 5770 using CCC but when I used Afterburner, I could get some modest stable overclocks.
Try it, see if there is any difference:
http://event.msi.com/vga/afterburner/download.htm

[edit] Also, use this guide: http://www.overclock.net/amd-ati/633...d-ati-gpu.html
Try small increments, don't go overboard.
Edited by Wheezo - 8/8/11 at 5:42pm
Mecha |3lack
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Mecha |3lack
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Ol' Timer
(23 items)
 
Littlefoot
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CPUMotherboardGraphicsRAM
Intel Xeon x5650 @ 3.80GHz 6c/12t Asus P6T Deluxe V2 16+2 Phase Sapphire NITRO+ RX470 4GB 12GB (3 x 4GB) Kingston Hyper X Fury 1.5v 1600mhz  
Hard DriveHard DriveHard DriveOptical Drive
Crucial BX200 240GB [OS] WD Caviar Black WD1001FALS 3 X WD Caviar Blue WD10EZEX  LG Super Writemaster 
CoolingOSMonitorMonitor
Xigmatek SD1283 Night Hawk [P/P] Windows 10 Home LG 24EA53V 24" LED IPS 1080p LG 42LY340C 42" LED HDTV 1080p 
MonitorKeyboardPowerCase
Samsung Syncmaster 2243SWX Nixeus Moda V2 MK-BN15 TKL Enermax Liberty ECO 620watt Fractal Design Define XL R2 
MouseMouse PadAudioAudio
Logitech G502 Proteus Core Ducky Flipper Extra R Asus Xonar DGx Sennheiser HD558 
AudioAudioAudioOther
Pioneer SX-315 700w Receiver  Klipsch Synergy B10 Speakers Audio-Technica ATR4750 Microphone NZXT LED Strip 2m - Blue 
Other
XBOX 360 USB Controller - White 
CPUMotherboardGraphicsRAM
Intel C2Q Q8300 @ 3.0GHz - 1.30v Asus P5K-VM mATX Sapphire HD7870 Ghz Dual-X 4 GB (2x2gb) GSkill DDR2 1066MHz + 2GB Hynix  
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Optical DriveCoolingOSMonitor
LG Super-Multi DVD/RW Coolermaster 775 HS /w shroud  Windows 10 Home LG 42LY340C 42" LED HDTV 1080p 
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post #6 of 8
+1 for the MSI Afterburner.
Did you update your drivers?
Is your PSU giving it plenty of power?

+1 for the small incremental approach.
first work your clock speed, then your ram speed to find a max, then work them together to figure out what works for your card. Once you feel comfortable about a stock voltage OC, you may want to do some voltage tweaks.

Remember OC's are not guaranteed and just because somebody else makes a claim about an OC, does not mean your card will.
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Mako
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post #7 of 8
Thread Starter 
ok guys thanks for your responses ill take that onboard, very sound advice, for the record i have tried msi but got same results, i take it when using msi you have to remove ccc? be cause thats what i did, also it seems to be the processor clock speed that makes it unstable, i can up the graphics memory clock speed about half way but if i move the processor clock speed up even a tiny bit past 850 games are instantly showing arterfacts. could of swore i read somewhere that this card has correction or something and doesnt show artifacts
post #8 of 8
Thread Starter 
so i think it must of been cooling because im now able to get better, basicly i got an old xbox 360 fan and put it under the gpu blowing towards it as the cards fan seemed to blow into the card not out, but im gettings temps of 82c is this not rite??, seems high to me, and thats playing for like 5 minutes, any advice here, no artifacts though like last time
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