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Phenom II steppings and max OC 550-940 - Page 283

post #2821 of 2827
By the way, my Phenom II isnt on the list. its Phenom II B59 (released in businesss computers in china only- not even the AMD website recognizes that they exist). Its showing as an athlon II 559 because it is unlocked from an X2 to an X4, but it it s phenom II.
post #2822 of 2827
i would guess that a lot of the high overclockers research the date that the "Best" overclocking chips were produced, and look for corresponding numbers in ebay listeng pictures for individual cpu's. You also have to choose a quality cooler and a motherboard with good, high wattage and stable vrm's. I had a 750K Black edition which overclocked to 4.4 ghz on a gigabyte board, but would only hit 4Ghz stable on a comparable ASrock board- most likely because of the quality of the VRM's.
post #2823 of 2827
Just overclocked my Phenom II x4 965 to 4ghz - 275FSB x 14.5 - gotta say, for its age its pretty impressive.
post #2824 of 2827
hi, realise this is a very old thread but would like to overclock my phenom X4 9950 Black Edition

dont want nothing too crazy, and hoping to just use the stock cooler

never overclocked a cpu before, although have tried via my bios,, after watching a couple youtube videos, and i never succeeded anything other than making a mess, and pc failed to boot lol. had to reset cmos and all that jazz

so looking here for help
heres some screens of my system takem from cpuz




Edited by moiloon - 7/23/17 at 11:24am
post #2825 of 2827
Quote:
Originally Posted by moiloon View Post

hi, realise this is a very old thread but would like to overclock my phenom X4 9950 Black Edition

dont want nothing too crazy, and hoping to just use the stock cooler

never overclocked a cpu before, although have tried via my bios,, after watching a couple youtube videos, and i never succeeded anything other than making a mess, and pc failed to boot lol. had to reset cmos and all that jazz

so looking here for help
heres some screens of my system takem from cpuz

First, dont use a poor quality board. That CPU has killed many cheap AM2+ boards. I was using a DFI 790FX LP/DK back when I had my 9950 BE, I was using MSI 790GX Platinum before that and killed 2 boards at ~3ghz.

Voltage for that chip should be fine up to ~1.5v if you can cool it, try to keep temps at 65c or under.

I would start out at ~1.4v and 15x multiplier (3ghz). All changes have to be made in the BIOS, AFAIK there are no 'software' solutions to overclocking on that platform.
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post #2826 of 2827
The biggest tip I have for those old (and fun) things is to find an old case and steal the reset button or power button from it. Hook it over your CMOS reset jumpers. You can leave it hanging out your case while you get everything stable. And keep notes of what works and what doesn't. You'll find a lot of it will revolve around trying a setting, finding it doesn't work, and having to reset the CMOS and hitting F6 in the BIOS to reload those optimal defaults again. Then you try it a little differently, with a little less HTT or a dash more voltage. If you get it into windows and it's not stable, nudge the core voltage up, or the memory voltage, or your NB voltage...

The real fun with AM2/AM3 was the balancing of HTT speed with multipliers to get the most actual performance out of your machine. I LOVED that. Sometimes a slightly lower clock speed on the chip, but with a higher HTT clock would give me more than the other option.
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post #2827 of 2827
thanks for your replies to my query, hopefully i can now manage this without drama, or cmos balloni lol
if not I will no doubt be writing here again for help lol
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