2.6C, P4P800 non-deluxe @ 250fsb Final

[Thor86]

P4 2.6C L311Axxx
Corsair TwinX3200LL (2 x 256)
Asus P4P800 non Deluxe rev1.02 (1007 bios)
Thermalright SLK900U w/ Panaflo 92mm H1A

1007 bios (Performance Mode)

200fsb, 1.525v, Performance Mode=Turbo, MAM=Enabled, 1:1, 2-3-3-7-8, vdimm=2.75, vagp=1.5, prime95 two instances passed 1 hour (f/l 1.54vcore, idle 1.58vcore)
sisoft 4981/4974, aida32 5202(read)1676(write) - memory timings default to SPD (2-2-2-5) according to cpu-z when using Performance Mode set to Turbo
250fsb, 1.525v, Performance Mode=Standard, MAM=Enabled, 5:4, 2.5-3-3-7-8, vdimm=2.75, vagp=1.5, prime95 two instances failed comp rebooted (f/l 1.54vcore, idle 1.58vcore) sisoft 5276/5337, aida32 4793(read)1387(write)
250fsb, 1.575v, Performance Mode=Standard, MAM=Enabled, 5:4, 2.5-3-3-7-8, vdimm=2.75, vagp=1.5, prime95 two instances passed 1 hour (f/l 1.55vcore, idle 1.62vcore)

250fsb, 1.600v, Performance Mode=Standard, MAM=Enabled, 5:4, 2-2-2-6-4, vdimm=2.75, vagp=1.5, prime95 two instances TESTING (f/l 1.57vcore, idle 1.66vcore) sisoft 5389/5390, aida32 4971(read)1478(write)

(Some Benchies)
250fsb, 1.600v, Performance Mode=Standard, MAM=Enabled, 5:4, 2.5-3-3-7-8, vdimm=2.75, vagp=1.5, prime95 two instances passed 3 hours (f/l 1.57vcore, idle 1.66vcore) sisoft 5335/5330, aida32 4749(read)1392(write)
250fsb, 1.600v, Performance Mode=Standard, MAM=Auto, 5:4, 2.5-3-3-7-8, vdimm=2.75, vagp=1.5, prime95 two instances passed 3 hours (f/l 1.57vcore, idle 1.66vcore) sisoft 5254/5292, aida32 4628(read)1403(write)
250fsb, 1.600v, Performance Mode=Standard, MAM=Enabled, 3:2, 2.5-3-3-7-8, vdimm=2.75, vagp=1.5, prime95 two instances passed 3 hours (f/l 1.57vcore, idle 1.66vcore) sisoft 4712/4706, aida32 4260(read)1256(write)

251fsb, 1.575v, Performance Mode=Standard, MAM=Enabled, 5:4, 2.5-3-3-7-8, vdimm=2.75, vagp=1.5, prime95 two instances failed comp rebooted (f/l 1.55vcore, idle 1.62vcore)253fsb, 1.600v, Performance Mode=Standard, MAM=Auto, 3:2, 2.5-3-3-7-8, vdimm=2.75, vagp=1.5, prime95 two instances failed comp rebooted 2+ hours (f/l 1.58vcore, idle 1.66vcore)
254fsb, 1.600v, Performance Mode=Standard, MAM=Auto, 3:2, 2.5-3-3-7-8, vdimm=2.75, vagp=1.5, prime95 two instances failed comp rebooted (f/l 1.58vcore, idle 1.66vcore)
255fsb, 1.600v, Performance Mode=Standard, MAM=Auto, 3:2, 2.5-3-3-7-8, vdimm=2.75, vagp=1.5, prime95 two instances failed comp rebooted (f/l 1.58vcore, idle 1.66vcore)
256fsb, 1.600v, Performance Mode=Standard, MAM=Auto, 3:2, 2.5-3-3-7-8, vdimm=2.75, vagp=1.5, prime95 two instances failed comp rebooted (f/l 1.58vcore, idle 1.66vcore)
256fsb, 1.650v, Performance Mode=Standard, MAM=Auto, 3:2, 2.5-3-3-7-8, vdimm=2.75, vagp=1.7, prime95 two instances failed 33mins (f/l 1.57vcore, idle 1.66vcore)
256fsb, 1.625v, Performance Mode=Standard, MAM=Auto, 3:2, 2.5-3-3-7-8, vdimm=2.75, vagp=1.5, prime95 two instances failed (f/l 1.57vcore, idle 1.63vcore)
256fsb, 1.600v, Performance Mode=Standard, MAM=Auto, 3:2, 2.5-3-3-7-8, vdimm=2.85, vagp=1.8, prime95 two instances failed comp rebooted (f/l 1.57vcore, idle 1.65vcore)
256fsb, 1.600v, Performance Mode=Standard, MAM=Auto, 3:2, 2.5-3-3-7-8, vdimm=2.75, vagp=1.5, prime95 two instances failed comp rebooted (f/l 1.57vcore, idle 1.65vcore)
257fsb, 1.600v, Performance Mode=Standard, MAM=Auto, 3:2, 2.5-3-3-7-8, vdimm=2.75, vagp=1.5, prime95 two instances failed (f/l 1.57vcore, idle 1.65vcore)
258fsb, 1.600v, Performance Mode=Standard, MAM=Auto, 3:2, 2.5-3-3-7-8, vdimm=2.75, vagp=1.5, prime95 two instances failed (f/l 1.57vcore, idle 1.65vcore)
260fsb, 1.650v, Performance Mode=Standard, MAM=Auto, 3:2, 2.5-4-4-8-8, vdimm=2.85, vagp=1.8, prime95 two instances failed (f/l 1.58vcore, idle 1.66vcore)
260fsb, 1.675v, Performance Mode=Standard, MAM=Auto, 3:2, 2.5-3-3-7-8, vdimm=2.75, vagp=1.5, prime95 two instances failed (f/l 1.58vcore, idle 1.70vcore)

 

[ErikaeanLogic]

Hmm, that's just about what my 2.6C does (260fsb, HT, Prime stable). Looks like they like to cap out at the 3.3-3.4GHz range, eh? And yet we're subjected to bigtoe's 2.6C @281fsb on air, right

? As a result, I've done the same thing as you, went ahead and gotten more chips to see which one does best, lol.

Good luck, hope to see more out of this one!

 

[oldfart]

Yep, that is right around where my 2.6C / IC7 is.

257 FSB, 1.600v (BIOS setting), 5:4, 2-2-2-5, vdimm=2.8, vagp=1.5, prime95 two instances + Seroius Sam looping TESTING (f/l 1.54vcore, idle 1.57vcore)

3.3 - 3.4 seems to be pretty common.

Can you run 5:4?

 

[ErikaeanLogic]

I run 5:4 at 2-2-2-6

 

[Thor86]

I want to see what the max fsb/cpu is at before going 5:4. But this one doesn't look so good. Testing at 254fsb now for Prime95 stability. Maybe it needs a little "burn-in" period.

 

[Thor86]

This is getting better and better. Testing at 251fsb now.

 

[Thor86]

Well, looks like this 2.6 is only able to do 250fsb @ 1.6vcore with max memory settings still testing for the next couple of hours to make sure it's good and stable. Don't have time to run it overnight, as I am putting the 2.4 back in.

Conclusion, this batch is only able to do 3.2ghz tops.