ASUS P4C800 Deluxe (875P)

ASUS P4C800 Deluxe: Stress Testing

We managed to stress test the P4C800 Deluxe in several different areas and configurations, including:

1. Chipset and motherboard stress testing was conducted by running the FSB at 243MHz.
   
2. Memory stress testing was conducted by running RAM at 333MHz and 400MHz in dual DDR operation at the most aggressive timings possible.

Front Side Bus Stress Test Results

As usual we ran a large load of stress tests and benchmarks to ensure the P4C800 Deluxe was absolutely stable at each overclocked FSB speed we experimented with. We ran our usual array of stress tests, including Prime95 torture tests, which were run in the background for a total of 48 hours. We also proceeded to run lots of other tasks such as data compression, various DX8 games, and light apps like Word and Excel while Prime95 was running in the background. Finally, we reran our entire benchmark suite, which includes Sysmark 2002, Quake3 Arena, Unreal Tournament 2003, SPECviewperf 7.0, and XMPEG. In the end, 243MHz FSB was the highest overclock we were able to achieve with our conservative overclocking setup without encountering any reliability problems.

Memory Stress Test Results

This first memory stress test tests how well the P4C800 Deluxe is able to handle dual DDR333 operation, which has been more than validated by Intel for this 875P motherboard. In other words, this should be a breeze for any motherboard that claims to be dual channel DDR400 compatible (or dual DDR333 compatible for that matter), though results will vary of course. Anyway, here were the timings we were able to achieve at the following settings:

This certainly isn't anything surprising, as a dual channel DDR400 motherboard should have no issues running in dual channel DDR333 mode with the two additional banks filled. These are the most aggressive timings possible, and you certainly won't see better DRAM timings than this from any 875P motherboard on the market.

Now on to the more strenuous scenario of four memory modules running in dual DDR400 mode with all banks filled:

CAS2/2T/6T/2T with four banks filled and running at 400MHz isn't bad at all. Thankfully, this 875P-based board was able to run at similar timings compared to other 875P and SiS 655 motherboards we've tested in the past. This is encouraging to see as DDR400 is becoming more and more mainstream by the day.

As usual, we ran several memory stress tests and general apps to make sure all these timings were stable. We started off by running Prime95 torture tests; a grand total of 24 hours of Prime95 was successfully run at the timings listed in the above charts. We also ran Sciencemark (memory tests only) and Super Pi. Neither stress test was able to bring the P4C800 Deluxe to its knees.