MA790X / MA790XT-UD4P 790X bugs fixes etc etc.....

[gOtVoltage]

Hi,

Im new here but not a total noob to overclocking. I have been a member of another forum for about a 4 months now but would like to get a different perspective from time to time.

I have a 790x-ud4p like in my sig. I was wondering has anyone encountered any form of severe ram overvoltage with this board. My problem started when I bought a set of the OCZ low volt blade 1066's. See they call for 1.8v and are covered up to 1.85evp. My board for some unknown reason when bios was set to normal for ddr2 voltage would give the ram 2.05 volts (confirmed in bios and everest). If I upped it by +.1 (which is how my board works...in +.1 increments to 2.4 volts i believe) It gave me a 1.95 volts as confirmed in bios health status menu, after which scaled properly with each +.1 increment adding an additional .1 volt to memory. After a round with both OCZ support and Gigabyte support the finger pointing began. One part told me that in no way fashion or form could the memory affect what voltage was given to the sticks, that It was 100% the motherboards fault if it overvolted. The other said that It had to be the Jedec profile either not being correct or being misread. I could not for the life of me get this memory to run at 1066 1.8 nor 1.9 volt. I tried a set of patriot viper 1066 and guess what, this memory instead was at a 1.95v for normal. I afterwards installed a old set of crucial 533 ddr2 and It was the only set that defaulted at the proper 1.85 volts. I sent the blades back to tigerdirect and exchanged them for a set of 1150mhz ocz titanium, which after trying every timing (loose and tight) available in my motherboard, would not get past one run of memtest test 5, nor even get started with prime 95 blend. This is not the only set to have issue as I have also tried corsair dominator 1066 4gb kit and results were close to same as Titaniums except they would work at less than 900mhz stable.

So In you guys opinions, is my board whack, or is this some sort of incompatibility issue with this mb and ram.
Not trying to rob a thread but thought heck this is the place with people who have similar boards as mine and someone could confirm whether it is a issue or not.

Make shure you dont use the EPP option with Auto or it will overvolt.

Set all ram options to Manual and use HTT to get your top Ram MHZ.

Jdec should set 1.8v-1.85 normally so you wont even need to add volts to it for OCZ Blades.

Also the NBvid with a 720 should have +100 or +150 or even more when running 4dimms and High NB freqency with High freqency ram.

I also use patriots @ 2.3volts @ 1200/1175 and 150mhz with out those overvolting. It could be the Bios your using.

That mobo UD4p needs the F5a Beta or newest F5 .. the F4 bios was buggy.

Ive tested with 720 and 550,, In X3/X2/X4 modes as well..


Set every thing to stock after flashing to F5(recomended) and then set Ram manually with the detected volts wich should be 1.85v,,then over the thing. i must of spelled clock wrong

Your probally on the release BIOS which is F2 or F2a...you need the F5a or F5 trust me.