Pentium 651 ?or 653 (C1 revision stepping 4) overclock easily 1.30v @ 4.9Ghz on air

[coolaler]

Pentium 651 ?or 653 (C1 revision stepping 4) overclock easily 1.30v @ 4.9Ghz on air
651 front side and back side

[coolaler]

platform:



M/B ：ASUS P5WD2-E
MEM ：MICRON D9 1GBX2 Dual Channel
HDD ：WD3200KS SATAII 300G 16Mb Cache RAID 0X2
VGA CARD ：7900GTX 512MB
POWER: ENHANCE 650W
OS ：WIN XP SP2
CPU COOLER：Tower 120
CPU ：INTEL Pentium 651 C1 Stepping 4

[coolaler]

1.3V@4.9G Dual Superpi32M,CPU temp 50 degrees celsius



when 9 loop , the temp. is reaching at 50-51 degrees celsius



1.37v @ 5G running dual SP2004 with Large setting 9 , the temp. of 651 is only at 64 degrees celsius

[coolaler]

1.40v@5.1ghz next
when IDLE CPU temp 39 degrees



but when 5.2g,Vcore must 1.47v@Superpi32M
CPU temp 61 degrees

[coolaler]

It's limit@air cooling maybe
5.3G@Superpi1M

[coolaler]

return to 5.1Ghz
dual Superpi32M pass@1.42v



3DMark05 and then



1.42v Could Superpi32M pass
but Vcore must adjustment up to 1.45v@3DMark06 CPU test passed

[Absolute_0]

Awesome work, fantastic CPU! Intel's looking nice, even the Netburst! lol, 5.1 Ghz on air is fantastic

I take it you have plans to get her cold?

[NiCKE^]

That's amazing! Did prime fail during 5ghz?

[IluvIntel]

I've been hanging out for these "C" stepping Cedar mills for a while now... now how long till' for sale in Australia ?

[coolaler]

change ram to Corsair D9 512X2,16*319mhz=5.1G@32M 21m50.328s

[^don.k's^]

I like it... I love your 2x1gb fat bodies too

[Supertim0r]

no throttle @ 60c+ ?