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Biostar TA790GX 128M Voltages wont change... Need help


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a little background on the motherboard. The first one I got worked great for about 4 months and then just died. I have now had the second board back for a few weeks. (definetly a different board as the sata ports are black and not orange like the old board)first thing I noticed wrong with the mb was that the audio ports don't work and now I am having this trouble..

 

Just like the topic says.. I cannot change the cpu or nb voltage in the bios.. The ramm voltage changes fine though.. No matter what I do the cpu voltage stays at 1.296 in bios and in CPU-Z. I have tried flashing the bios, resetting the cmos, re-seating everything, I even took the 3pin fan headers off the motherboard and hooked them to the power supply. Have had trouble with motherboard fan power before but still no luck.. I don't have another amd cpu to try but I don't think the cpu is the problem.

 

Just wondering if anyone might have an idea of what the problem is?

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You can always try AMD Overdrive. Biostar also has software for overclocking called T-Utility Overclock III. Have a similar board though not exactly the same TA790GXB. I set the BIOS to overclock maually or you can auto-set it to V6, V8, or V12. Then from there I can set voltages under the P-Series tab.

 

These Biostar boards are a little different and have taken some getting used to for me. I can only change the HT Link through AMD Overdrive for reasons unknown.

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You can always try AMD Overdrive. Biostar also has software for overclocking called T-Utility Overclock III. Have a similar board though not exactly the same TA790GXB. I set the BIOS to overclock maually or you can auto-set it to V6, V8, or V12. Then from there I can set voltages under the P-Series tab.

 

These Biostar boards are a little different and have taken some getting used to for me. I can only change the HT Link through AMD Overdrive for reasons unknown.

 

I have tried overclocking with amd overdrive and when I change the voltage and hit apply they just go right back to what they were. I will give the t utility a try..

 

I also have the auto-set feature but it doesnt adjust the voltages either.

 

edit: okay I tried the T utility and this is what it shows

 

Edited by Water_Hazard

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Well I have the same exact board and if you do get the voltages working make sure not to take them too high. I fried my first one by doing that (Phenom II X4 940 @ 3.6Ghz 1.45v under Prime95 did the trick). It doesn't have any cooling for the VRMs so it's not a good board for high overclocks.

 

But have you tried chaning the Custom P States (or something of that nature) and you can change the core vid there. Mine is set to 1.35v then I raise the voltage via the voltage screen.

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well I was up half the night messing with different settings... I tried all the voltages under the custom p states just to see if they would do anything but no luck. Also tried changing other settings that I thought might make a difference but still nothing.

 

Thanks for the help though guys. Looks like I will be giving biostar a call tomorrow. Maybe they can give me some insight on where the promblem may lie

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