So I managed to get one of these processors from my local computer shop for a pretty good deal. It appears to be a black edition with the number: HDZ955FBK4DGM on it. After tons of reading, it says that this processor is completely compatible with the motherboard once you flash the BIOS to at least revision F5. I have it flashed to F11 and I'm still having problems getting it going. What happens is the processor is completely recognized and it posts fine except for one of the BIOS revisions which actually hung. It gets into the BIOS just fine and I can play around it in, but once POST finishes and control hands off to either the CD drive or Hard drive for booting, I just get a black screen and nothing further happens. The power supply is a 450w but it only has a 4 pin CPU connector. The 6 pin dedicated graphics plug does fit in the port since there is an 8 pin port but I don't want to boot it up not knowing what will happen and I've read it's really not needed anyway. The RAM is DDR2-800MHz and cooling doesn't seem to be an issue as the machine has its own alarm which will activate and ultimately shut the system down. I tried google all afternoon with answers that really don't help me a lot. Does anyone else know what might be going on. I noticed the RAM goes from being in single channel to unganged mode, whatever that means. I don't really want to spend money on upgrading as the Athlon 64 X2 5000+ is sufficient but why this processor is giving me grief, I don't know.
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AMD Phenom II x4 955 on Gigabyte GA-MA785GM-US2H
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