Nothing truely special, but it seems @2630Mhz is the stable limit of the F2 Windsor 90nm 4200+
On air, I can achieve the same speed, but temps awere too high and at anything above 50c stability suffered, so I had to switch to a cheap water cooling kit to keep temps below 50c.
Maybe with a little more tweaking I'll be able to pass 2700 Mhz, but I've alread had to increase core voltage to 1.550v (bios max) and add 0.1v to all HTT to keep it stable as it is, so all that is left is to increase HTT voltages to +0.4 but with no more cpu core voltage I don't think anything higher and stable is possible.
After all the effort of getting the 2630Mhz stable, I just don't think the old F2 90nm Windsor cores have much left - maybe someone else has a few tricks or pointers for me that I could try to get better overclock results from a F2 Windsor 90nm cpu??
Still, a 20% overclock is nothing to complain about I guess.
- Overclock speed = 2630.2 Mhz
- Original CPU speed = 2200 Mhz
- Overclock percent = 20%
- CPU type = AMD 4200+ (F2 Windsor 90nm)
- Mainboard = Gigabyte GA-M59SLI-S5 (Bios: Award BIOS M59SLI-S5 F8)
- CPU Multiplier = 11
- CPU Voltage = 1.550
- Bus speed = 239 (actually set 240 in bios)
- Memory type= G.Skill 2x1GB (F2-6400PHU1-1GBHZ)
- Memory timings = 5-5-5-18-26 1T
- Memory voltage = +0.4
- HTT = 956
- HTT voltage = +0.1 (all of them)
- CPU <--> nForce SPP = 4x
- nForce SPP --> nForce MCP = 4x
- nForce SPP <-- nForce MCP = 4x
- Cooling = Thermaltake Big Water 735 (original with single/small radiator)
- CPU temp idle = 34c
- CPU temp load = 41c
http://img16.imageshack.us/img16/2886/oc26302mhz.jpg
http://img12.imageshack.us/img12/3113/oc26302mhzhealth.jpg
Note: All overclocking done via bios and not via Gigabyte's easy tune 5 pro. The easy tune 5 pro utility is ok for sub 10% overclocks, but lacks all the required options to be able to tweak things and achive anything above 10% stable. I also found that even at 10% overclock sometimes it would boot into windows for days and then at other times it would blue screen. I only use it for visual reference of bios settings and temps.