jadraker Posted February 16, 2010 Posted February 16, 2010 Hi, I read in many places that people with Phenom 9950 can reach at least 2,9-3,0 GHZ. In my case it's impossible. First I had a MSI K9A2 Platinum in which the processor reached 2,7 with stock voltage. Any higher (from 2,8) and BSOD. Later and as mobo was defective, I changed to a newer and better motherboard, ASUS M4A79 Deluxe (with SB750 and ACC). Unfortunately ACC set in auto, per core, etc doesn't help. To reach 2,7 stable, in this mobo I needed to put voltage higher than default, to 1,35V. Any higher and BSOD. Tried a higher speed (2,8) voltage (1,4v) and it helped a little, Prime95 duration was a little longer, however it's still unstable. I can't go higher as I'm using default cooler and I don't think that a 1,45v worth a 2,8 GHZ speed. I'm ocing modifying the multiplier, all others options are default. Why some people can go to 3,0 without adjusting voltage? Is there any value I can test in ACC to oc more, even at 2,8. Thanks. -ASUS M4A79 Deluxe -AMD Phenom 9950 140w -4X1 GB DDR2 667 Kingston Value RAM -MSI ATI Radeon 4850 -Cooler Master Real Power Pro 550w -Windows 7 x64 Share this post Link to post Share on other sites More sharing options...
_TheAlexO Posted February 16, 2010 Posted February 16, 2010 man, get a new heatsink. the stocks coming with the Gen 1 phenoms just cant handle the amount of heat. Share this post Link to post Share on other sites More sharing options...
joel.monteiro Posted February 16, 2010 Posted February 16, 2010 i have a gigabyte 790fx chipset and SB650 im not sure,when i had a stock cooler i overclocked my cpu to 2.7 with stock voltage it was reaching 70 to max 1 hour of prime95 but not stable for more than an hour,but are u crazy the stock voltage is 1.3 even if u increase to 1.35 the cpu will be sure unstable,never increase the voltage if u have a stock cooler,overclocking is more dependent on the cooler than the mobo,after i got the tuniq 120 extreme i overclocked like hell,to max i got was 3.4 at 1.45 voltage,after 2.8 i had to change the voltage my cpu was unstable,if u ask me i dont know how those ppl got 3 ghz without a voltage increase, try going for the new cooler like the Noctua NH-D14 or D12 which ever is there in ur budget if u have one? whts ACC do u mean AOD-amd overdrive. Share this post Link to post Share on other sites More sharing options...
RHKCommander959 Posted February 16, 2010 Posted February 16, 2010 phenom only get average of 300 oc, some were able of higher. acc helps. my 9600 wouldnt do more than 250-300 voltage didnt matter Share this post Link to post Share on other sites More sharing options...
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