A little ways back, I bought an NF7-S 2.0, and an Athlon Mobile 2500+ with a Prommie MachII. Loaded everything, and the most stable FSB I can hit is 197, even though I've read this mobo should normally hit 220+. The memory I'm using is OCZ Gold 4000 (450MHz). Updated the BIOS (three different versions - no diff- now on an 'uber BIOS'), ran through every setting in the BIOS and went through various combinations to no avail (currently @197*14) RAS/CAS settings 7/3/3/2.5, VDIMM setting at was @ 2.8v as rated, CPU Interface On, CPU Disconnect Off, FSB/AGP Spread Spectrums are Off, Raised and lowered the vcore which is now at 1.85 Also played with various multipliers to no avail (I've read there tends to be a 'sweet spot' on most chips and is usually the 'stock' multiplier. I've also tested the memory a friends unmodded NF7-S 2.0 and it hit 225 on that, stable running for 8 hours with SETI and Prime95. Not sure what the bottleneck is, and considering doing a volt mod on the board. The symptom when it fails (at FSB higher than 197 is the dreaded reboot (i.e. random reboots). BUT, if the CPU simply refuses to go any higher, I'm guessing a vmod won't do any good and I be hosed. How do I figure out where the bottleneck is? Could be the mobo or the CPU, and if it's the CPU, I'm screwed. If I need to buy another mobo or CPU, may as well just get a Northwood or Prescott and an Asus P4P800 etc. Any pointers? Help. Thanks Joe All Your Base Are Belong to Us

Two corrections before anyone asks (sorry on those): 1. The header should read NF7S 2.0, NOT A7N8X 2. The memory is rated at 500Mhz, not 450 Joe All Your Base Are Belong to Us

Must be the motherboard. Like some CPU's, some motherboards just don't overclock as well as others. <===Lefty===