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XFX 4870 Overclocking

post #1 of 4
Thread Starter 
I picked up a used XFX 4870 1GB today after my 9800GT decided it was time for it to go. This is the one with the egg shaped cooler.

The video card has voltage control which is nice. The problem is that with Afterburner, I can't go past 790MHz on the core. Its default is 750MHz. Kind of a waist since I have voltage control. Would I need to flash the card to go past 790 or use a different program?

Thanks in advance.
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Liquid
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post #2 of 4
You state you have voltage control, what voltage are you running at those speeds? Are you maxed out on the slider I suppose, and whats your highest temps while under load? Some cards just wont overclock good no matter what voltage you throw at them luck of the draw unfortunately. Does your cooler have cooling for the voltage regulation components? If not you might be overheating what kind of instabilities are you seeing? After burner is a good program but you could try another one just to be sure. Flashing is an option but be sure to follow instructions and be sure you do not lose power or you can brick the card. Never found desire to flash any video cards as once I hit max clocks/volts I call it a day and move on but that just me.
    
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post #3 of 4
i had a 4870 that couldn't go over 790 too. i don't think they overclock well at all.
Bender
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Bender
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post #4 of 4
Thread Starter 
Sorry for the late response. I ended up using RivaTuner which allowed me to go past 790. Running at 855. Worked at 890 but had some instabilities and don't want to go past the max voltage on afterburner.

The VRM's have a heatsink on them which is nice....so they are cooled. The memory modules do not have a heatsink on them so I won't overclock the memory much. Thanks for the responses.
Liquid
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3930k ASUS Rampage IV Gene EVGA GTX480 @ 900MHz @ 1.1V EVGA GTX480 @ 900MHz @ 1.1V 
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4 x 4Gb Corsair Dominator 1866MHz Samsung 830 256GB LG DVD Burner Win 7 x64 
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Liquid
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CPUMotherboardGraphicsGraphics
3930k ASUS Rampage IV Gene EVGA GTX480 @ 900MHz @ 1.1V EVGA GTX480 @ 900MHz @ 1.1V 
RAMHard DriveOptical DriveOS
4 x 4Gb Corsair Dominator 1866MHz Samsung 830 256GB LG DVD Burner Win 7 x64 
MonitorMonitorMonitorKeyboard
DELL U3011 DELL U3011 DELL U2410 Ducy Shine 2 
PowerCaseMouseAudio
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Yamaha HS80m 
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