unlocking 4th core

[Hemi345]

I'm curious to see if more than just ACC code updates were done in the new F2B bios for the UD4P. More specifically, the 1T/2T command timing is broke (hardset at 1T) and Bank Swizzle is always enabled as well in F2.

[PaganII]

I'm getting 4 cores without ACC on the GA-MA790FXT-UD5P with F3b bios. Still have sound problem. I thought turning off ACC would disable the 4th core and eliminate the scratchy sound but no. Too bad...4th core is strong.
Back to testing.

[mnemonix]

I thought turning off ACC would disable the 4th core

Same with the UD4P. Looks like I'm stuck with 4 cores now. Oh well, it's strong too, so I'm not complaining.

[charged3800z24]

If you pull power from the board and hit the CLR CMOS button, then power back up. you will have 3 cores again. Atleast that is my experience.

[iandh]

If you pull power from the board and hit the CLR CMOS button, then power back up. you will have 3 cores again. Atleast that is my experience.

same here

[bro20000]

All of a sudden was stress testing and my 4th core has gone wont pass stress test whatever voltage i give it!

[chew*]

Shut it down, disc power and let it sit for a while and cool down. I lost 2 cores on my 720 trying to crack 4.4 on air.

Was fine after I let it sit awhile. 4.4+ was easy with only one core showing in aod didn't bother validating or taking a pic. Apparently 1.7v ticked it off.

[G0ldBr1ck]

Shut it down, disc power and let it sit for a while and cool down. I lost 2 cores on my 720 trying to crack 4.4 on air.

Was fine after I let it sit awhile. 4.4+ was easy with only one core showing in aod didn't bother validating or taking a pic. Apparently 1.7v ticked it off.

but its ok now?

I lost a core on my old 9850 once, it just vanished. it never made it back tho.

[chew*]

but its ok now?

I lost a core on my old 9850 once, it just vanished. it never made it back tho.

Yep fine now, remember the 720BE revisited thread, all the benches were shortly after I lost 2 cores. Wanted to make sure it was still up to the task for the TH competition. Funny thing is it may actually unlock, apparently the bios's I tried it on are known not to work. I will try unlocking one tommorow, have to knock some gay 4 core multithreaded submitted benches out of first place on the bot.

[bro20000]

Its fine now changed bios to beta am sticking with 3 cores and waiting till April/May for a Quad core Black AM3 to show up!

[PaganII]

If you pull power from the board and hit the CLR CMOS button, then power back up. you will have 3 cores again. Atleast that is my experience.

Thanks, back to 3 cores and sound/color is fixed too. Still on F3b bios.

bro20000 - Yea, I'm just killing time waiting for a 9x5 too. Never had so much fun waiting ha ha.

Edit: I've been waiting since 939! But 5 of them keep me entertained.

[bro20000]

Have got to admit the F4g is the better of the two bios out currently got mem up to 836Mhz Stable 7,7,7,20 timing with the F3b that wasnt possible!
I cant wait for the Quads to come out i do think intel will be in for a shock!

[Hemi345]

Looks like Gigabyte pulled the F2B bios from their website.

I tried it out last Friday and along with unlocking the 4th core, I got sound corruption as well. So I'm back to F2.

They didn't fix the 1T/2T timing control... it still stays at 1T regardless what it's set at in the bios. Same with bank swizzle.

[knopflerbruce]

Just to make it clear... this won't work on non-AC mobos like the DFI UT 790FX-M2R..?

[dimi80]

i want to get the X3 720 with the Gigabyte GA-MA790FXT-UD5P or UD4Pto use also DDR3 1600 Ram . Can any cpu 720 unlocked to 4 cores? Or only the 09/04 made? It's difficult i think to find in the market this date of build. Does anyone where to find it?

[3dsag3]

^@dimi80, I got mine at Tiger and they had a row of 0904's.

So far i'm 1Hr prime stable (stopped by me) at 3.5GHZ on my 720B.E with X4 cores enabled. This is on my DS4H.

Will be getting a UD5P soon though.

This is my max OC on 4cores 3.9GHZ and 3.8 is Max benchable so far. I havent gone over 1.5V though

[shaolin95]

Thats very nice there. I am slowly pushing mine but I am already happy at my current speed. :-)

[dimi80]

my question again. It works only the 09/04 ? And witch AM3 (for ddr3) board did you prefer?
I found a 09/04. will it work?

[3dsag3]

@Shoalin95--Thanks I'm glad it worked out as a Quad


@Dimi80-- Read thru this thread dude, it shows which ones might be quad. Its a roll of the dice though
http://www.xtremesystems.org/Forums/...d.php?t=219087

[dimi80]

@3dsag3 thanks a lot! I found one it's 09/03 build. do u think it will works?