Mobile 2600 OC Question

First and formost, this is what I'm using that would have an impact on my question:

Mobo: Abit NF7-S Rev.2 (oldest design)
CPU: AMD Athlon XP-M 2600+ "Barton": AXMG2600FQQ4C Y881091K30042 AQYHA0346XPMW
PSU: Enermax 460W
Memory: Kingston HyperX PC3500 w/ CH-5 modules
Cooling: Thermalright SP-97 (lapped) w/ Vantec 92mm Tornado & AS5

Ok, to start off with, when I refer to p95 stable I mean Small FTT testing for 12+ hours. Also, when I refer to Vcore voltage, I mean actual voltage recorded through MBM5/CPU-Z, not what the settings are for in the BIOS. All DIMM voltages are 2.9V.

Room temps vary from 17C-23C depending on time of day. CPU temps @ 1.88 & 220x11.5 vary from 23C Idle 31C Load to 34C Idle 43C Load depending on room temp.

I am able to keep 15x133 p95 stable @ 1.45V and 10x200 p95 stable at the same voltage. 220x11.5 is p95 stable @ 1.88V.

I can also keep the FSB stable up to around 237MHz.

However, there is no combination that will let me keep 2.6+ GHz stable. Even with 2.08V, my highest recorded temps have been 43C Idle and 52C Load. Is there anything I can do to get 2.6+ GHz stable, or should I return the CPU to newegg and hope for a different stepping?

Returning an Athlon XP because it won't do 2.6 GHz (?)

2530 is a nice overclock, that's what they do.

People get over 2.6 GHz not just because they have top notch components but because they got lucky. yeah there are 2.8 Gz OC's out there but for every one of them there are untold number of CPUs that do under 2.6 GHz. Yours is one of them.

i got very similar results with my 2600 mobile chips as well...

2.412Ghz with 1.73-1.79v (set at 1.775) stable in Dual CPU mode

i haven't tried, but based on previous experience, i estimate that if i went to 1.85+volts then i would get about 2.5ghz...

if you look, this is about average with air cooling...not bad...and IMHO, certainly not worth RMAing to newegg