440BX Test System:
Intel Pentium III 450
Abit BF6 440BX Mainboard
Hercules Dynamite TNT2 Ultra
128MB EMS HSDRAM
Western Digital Expert 18.1GB UDMA HD
Sound Blaster Live PCI Audio Card
Toshiba 6X DVD-ROM

i820 Test System:
Intel Pentium III 600B, Intel Pentium III 733
Gigabyte GA-6CX i820 Mainboard
Hercules Dynamite TNT2 Ultra
128MB PC800 RDRAM
Western Digital Expert 18.1GB UDMA HD
Sound Blaster Live PCI Audio Card
Toshiba 6X DVD-ROM

	P3-450/100	P3-600B/133	P3-733/133
Maximum Overclock With Stock Heatsink	531/118	657/146	798/145
Maximum Overclock With Glacier 4500 P3	558/124	675/150	798/145

Well, our last in-house P3-450 didn't manage to replicate the results of the guaranteed models Net-N-Dude sells, likely due to its advanced age (manufactured in February) and the fact that it wasn't screened from hundreds of its siblings as Net-N-Dude must do to find those 675MHz diamonds in the rough.

We did see benefits from using the Glacier 4500 SECC2 cooler however, as it allowed us to overclock two of the three Pentium III CPUs to higher levels than their stock Intel-provided OEM units would allow. The newest Pentium III CPU we possess in-house, the P3-733, was not able to improve its max overclockable speed using the Glacier, it's also an early model in the scheme of Intel production 733 CPUs.

In terms of temperature reduction, the Glacier 4500 lowered the surface temperature of the chips we overclocked by approximately 7 to 10% in raw degrees Fahrenheit when idle.

In terms of peak heat production however, say when an overclocked CPU is getting 98 - 100% utilization continuously by an app (looping Quake2 demos, Prime95 number crunching) the Glacier kept temperatures up to 15% lower than the stock cooling units could, which indicates a strong ability to continuously dissipate heat