Athlon64 Boards Found Lagging in Memory Support

Memory Test With Corsair, Infineon And TakeMS

The following memory types were used for this test :

Test Capacity Manufacturer Model Number Type Timings Cycle Time Voltage
2 x 512 MB Infineon HYS64D64320GU-5-B DDR400 CL 3.0-3-3-8 5 ns 2.5 V
2 x 512 MB takeMS MS64D64020U-5 DDR400 CL 2.5-3-3-8 7 ns 2.5 V
2 x 512 MB Corsair CMX512-4000 Pro DDR500 CL 3.0-4-4-8 4 ns 2.6 V

Memory modules from Corsair are available worldwide as a rule, whereas Infineon and TakeMS are mainly prevalent in Europe. In practice the purchase of two DIMM modules is a sensible option, with 1 GB RAM in total, as modules with larger capacities than 512 MB are still expensive.

We consciously used a branded memory, which does not however support any extremely fast timings - these can scarcely be maintained if two memory modules are used.

Acid Test With Prime95

Prime95 is a small program used to search for prime numbers. The arithmetic operations which this process involves make an ideal stability test for many computers. The developers have envisaged three test methods for this (see picture above). We opted for the memory test of course.

If the test unit from Prime 95 is run, the result should look something like this.

Detected calculation errors lead to the torture test being aborted. Unfortunately, this happened to us on several occasions during our memory test.

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