Over three nights, and in -10C temperatures… we overclock three Intel 915 motherboards and see what happens. The results may surprise you!

Reader Feedback
Not long ago we reviewed a few Intel 915 motherboards here on PC Perspective. In response to one of those articles, Robert (a reader who linked in from [H]ardOCP) wrote me giving me input on the overclocking tests featured in the articles — specifically addressing the importance of synchronous CPU-Memory overclocking at the default multiplier.

While I agree that doing this kind of synchronous with default multiplier overclocking is important, I prefer to use a 14x multiplier (vs. the 18x default) and asynchronous settings because it gives us a better idea of how the motherboard itself functions at high frequencies without the RAM or CPU being bottlenecks.
But Robert’s comments got me thinking, what if I got these LGA775 motherboards cool enough so I can test using the default multiplier with synchronous RAM… ? So using Robert’s email as inspiration, I’ve taken the Chaintech V915P, the Asus P5GDC-V Deluxe, and the ABIT AG8 and put them in sub-zero temperatures for some serious overclocking!

Since we are only testing 3 motherboards, it’s hardly enough data to make grand conclusions like ‘the best 915P’ overclocker. This is just an interesting experiment whether the results are useful or not.

The Systems
For this experiment, I am using the following setup for all three motherboards:

CPU Intel Pentium 560E (3.6GHz)
RAM 2x 512 Corsair CMX PC3500
Video ABIT Radeon X700 Pro 128MB
HDD Western Digital 120GB SATA150
Power Supply Antec TruePower 430W
CPU cooler Stock Intel LGA775 cooler

The Environment
I live in Northern Ontario where it gets pretty cold overnight. Temperatures drop to -19C  fairly regularly which makes great weather for overclocking! Just have to make sure to avoid condensation. O_o

Natural Sub-Zero Overclocking - Cases and Cooling 6
This is a 6-day forecast for my area. -21C on Monday?!
Awww man! 🙁

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