Anyone using the new Athlon X2 7750BE cpu?

[perdomot]

Reviews make this cpu look pretty good especially the unlocked multi. Anybody using one or are folks waiting for PhII?

 

[LoneNinja]

I've got one and it didn't overclock very well. I'm currently running it at 3.0Ghz, 1.34Vcore, with ACC turned to auto. 3.1 required about 1.44 to remain stable, which is too much of a Vcore increase to me to justify an extra 100mhz. Even at a Vcore of 1.5 it wouldn't consistently load windows for me if I tried 3.2Ghz. Inside Vista using overdrive I could get it as high as 3.5Ghz, but it wouldn't pass any stability tests.

I think its a good processor, out performs my Athlon X2 5000 BE I had running at 3.1Ghz. Only reason I bought it was because I was able to sell an old Brisbane X2 and some DDR2 ram to cover the cost.

 

[Sk8rdd00]

I got mine to 3.4 on stock volts stable. Some people have gotten it to 3.6 at 1.45 and even 3.8ghz beyond 1.45. I'm using a 790gx/sb750 board.

 

[LoneNinja]

Could you tell me what you have your ACC set at? As far as I can tell ACC won't do anything for me, doesn't even help me get an extra 100Mhz with it turned on vs when its off. The night I got it I was able to pass some benchmarks at 3.4, and I thought for sure it was running stable at 3.2 since it passed benchmarks and ran games just fine for me. Unfortunately the following day when I went to turn my computer back on it blue screened trying to start at 3.2. After playing around in the BIOS for awhile I got it up and running at 3.2 again but after I shut the computer down and left it off for awhile, I got blue screens upon turning it on again. I think its due to me leaving ACC on auto, since dropping the clocks down to 3.0 and turning ACC off my computer is fully stable and doesn't give me any problems. I never had problems with my X2 5000 either.

I've got a 790GX board with the SB750

 

[perdomot]

This is always the problem with OCing: YMMV. It's the main reason I stopped OCing a while back since system stability became more important than free yet unsteady performance.

 

[Flipped Gazelle]

Originally posted by: perdomot
This is always the problem with OCing: YMMV. It's the main reason I stopped OCing a while back since system stability became more important than free yet unsteady performance.

If you overclock properly, you get both.

 

[nyker96]

I wonder how fast is this chip at 3.4 compare to say my E7200/3.6. I have heard some good things about this chip in some benchs compare to c2d offerings.

 

[Flipped Gazelle]

Your e7200 would still be faster. IIRC, in most reviews the 7750 and siblings are fairly similar to the e5200, clock-for-clock.

 

[Sk8rdd00]

Originally posted by: LoneNinja
Could you tell me what you have your ACC set at? As far as I can tell ACC won't do anything for me, doesn't even help me get an extra 100Mhz with it turned on vs when its off. The night I got it I was able to pass some benchmarks at 3.4, and I thought for sure it was running stable at 3.2 since it passed benchmarks and ran games just fine for me. Unfortunately the following day when I went to turn my computer back on it blue screened trying to start at 3.2. After playing around in the BIOS for awhile I got it up and running at 3.2 again but after I shut the computer down and left it off for awhile, I got blue screens upon turning it on again. I think its due to me leaving ACC on auto, since dropping the clocks down to 3.0 and turning ACC off my computer is fully stable and doesn't give me any problems. I never had problems with my X2 5000 either.

I've got a 790GX board with the SB750

I leave my ACC set to auto. I'm not too sure what -12 through +12 do as AMD have never given an explanation. The best explanation I've read is that its some kind of clock skew tolerance mechanism + a clock gen that is on the SB750 that directly links to the 6-pins on the CPU to negotiate with the cores.

I've pretty much hit a brick wall at 3.5. I can't get past it without massive amounts of voltage.

I'm using a Foxconn A7DA-S

 

[perdomot]

Are you guys simply raising the multi or doing a multi/FSB combo OC?

 

[SickBeast]

3.5ghz is a way better overclock than I would have expected out of these chips. It looks like AMD has refined their manufacturing process.

 

[perdomot]

I wonder how well a 780G mobo without the ACC would do with this chip.