Need Help w/OC Problem

I have a Phenom 9600 BE with a Zerotherm NV120 on it and the max useable (I say useable clocks because it crashes every once in a while) clocks I have been able to get is 2544 MHz (12 X 212), but for now I am at 2500 MHz (12.5 X 200) and I am able to run my ram at 533 MHz or ddr2 1066. I was also stable at 10 X 250 FSB.

I am currently running stock voltage of 1.25, but everything in windows reads it as 1.20.

Heat is not the problem the heatsink has barely gotten warm to the touch and according to HWMonitor the highest temp I have seen was 36C while running a 20 man CS:S server and playing against the bots at the same time.\

I don't know if it will help, but when it "crashes" I get looping audio and then finally nothing with a froze screen in game. It doesn't crash unless I have been playing for a very long time (4+ hours) or I have had my PC on for a long time (18+ hours).

I haven't gotten a BSOD or a beep code of any sort, but I haven't tried any stability tests as of yet. I will be trying super pii after this post to see if it is stable in that.

When I got 2544 mhz I was also at an increased voltage of +.05 (should = 1.3)

My goal is to get to 2.6 on stock voltage since that is only a 300 mhz over clock or hopefully 2.7+ with a voltage increase.

My thoughts on the problem are either mobo or PSU hopefully, with always the possibility that it's the cpu's architecture (please god no).

My PSU only has 30A (combined claimed by the sticker on the psu. It has 3 rails 18A, 18A, and a 10A third rail. I think since it is getting to be over 2 years old that It could be the problem.

My plan is to buy a better mobo and PSU and buying the PSU first (corsair 750W ) (60A single +12V rail 80+ certified)
http://www.newegg.com/product/prod [...] 6817139006

Possible new mobos: Gigabyte GA-MA790FX-DS5
http://www.newegg.com/Product/Prod [...] 6813128074
OR DFI LANPARTY DK 790FX-M2RS
http://us.dfi.com.tw/Product/xx_pr [...] MB&SITE=US


Please give me any advice and pointers you can about solving this problem.



Sincerely,



decripple

Current System Specs
MB:GIGABYTE GA-MA770-DS3 (Rev 1.0) VGA:eVGA 8800GT SC w/VF1000 @ 700/1740/1980 Cooling:Zerotherm NV120 + Antec P180B w/5 120mm fans + PCI blower
CPU: Phenom 9600 BE @ 2.5 GHz (12.5 x 200)
Memory:2 X 2GB G.skill DDR2 1000 @ 1066 Sound:X-Fi Xtreme Gamer Browser:Firefox 2.0
HD:Seagate SATA150 300GB PSU:Cooler Master RS-550-ACLY

Mind running memtest and Prime95's blend? Let blend test run for 12hours.