conflikt, it is definitely worthy replacing Celeron with any of dual cores, you will see improvement
wineo, 80C is too high temperature, are you sure that cooler is mounted properly?
now, not sure if it interesting to anyone, but here is my summary with 5 CPUs:
E2160 ( 9x multi): Orthos stable 30+h @ 284MHz FSB, BIOS 1.8, memory 3-3-3-9 (1T)
E6850 ( 9x multi): Orthos stable 8h @290MHz FSB, BIOS 1.9A, memory 3-3-3-9 (1T)
E6750 ( 8x multi): Orthos stable 5h @288MHz FSB, BIOS 1.9A, memory 3-3-3-9 (1T)
E4500 (11x multi): Orthos unstable at 244MHz, BIOS 1.9A, , memory 4-4-4-12 (2T) [will test at lower speeds, but it is lagging already]
Q6600 ( 9x multi): Orthos stable 8h@274MHz FSB, BIOS 1.9A, memory 3-3-3-9 (1T)
tested with:
CPU cooler: Freezer 7Pro
memory: Kingston value ram, 2x1024MB
graphic card: X1950Pro with DuOrb
PSU: Zalman 850W, with heatpipes
3xIDE hard drives, DVD burner IDE, 1 SATA boot drive
E4500 was a big disappointment, it is probably this sample, but having had high hopes
it turned out to be a very poor overclocker. BSEL mode is as far as I feel comfortable
with HW modding.
Looking at all those CPUs, paired with X1950 Pro AGP card there is very little difference
in games, except for Age of Empires that run most smoothly with Q6600 (have not
benchmarked, just my impression, but it was noticeable difference)
Photoshop and multi tasking, again Q6600 was best, SuperPi was fastest with E6850,
and that CPU was running very cool. Q6600 probably needs a good PSU because
motherboard was showing signs of strain as max FSB with quad was just 274MHz
and northbridge heatsink was very hot (in "touch test")
As I can keep one of those I decided to take Q6600, but also get a new mobo,
MSI P35 Neo2-FR, together with new memory and Radeon 3870 that are going
quite cheap nowadays, and give the SATA2 to my brother.
If I kept this board then out of those 5 CPUs I would probably go with E6850, it
was fast and cool running and also allowed for fastest FSB