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Max 4890 OC

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mxthunder

Member
Joined
Dec 27, 2004
Location
Northeast Ohio
Depends, some as little as 900, some can reach 950-960. Using msi afterburner, you can boost the voltage to 1.35 and reach the high 900's usually.
 

Neuromancer

Member
Joined
Oct 11, 2005
Location
Tau'ri
Editing the ini file in afterburner lets you adjust voltage a lot higher than 1.35 :) I fixed my stock cooler and well over 1000MHz is doable :)
 

Neuromancer

Member
Joined
Oct 11, 2005
Location
Tau'ri
I have run it up to 1100 with 1.4325 90% fan speed (i have never set 100% I dont know why LOL) and run Furmark in 640x480 stability test mode. But it is not really stable cause I cant bench it :(
 

johnm

Member
Joined
Nov 5, 2002
Max 4890 OC
The early ones dont oc to good power regular parts get to hot.
Both of my cards run at 1.35 1.2v.
My early MSI @971 1071 needed a voltage increse to run stable.
MY 2nd 4890 is a HIS turo+ but is a decap version.
Decaps and circuit changes = a higher oc and a cooler running card.
The HIS gpu is 12c cooler on the Gpu.
The HIS will run at 1040 and 1100.
Do to CF both cards are set @971 1071.
Raising the volts gets the power regulating circuits temps to high.
 
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