?? Memtest86+ Interpretation ??

[tlbaxter]

Hi all,

I just upgraded my memory from 1GB of PC-5300 to 8GB of PC-6400 and I was hoping someone might be able to explain some Memtest86+ results. My specific question is about the MHz reported on the third line of output shown below but any other comments are appreciated, of course.

With 1GB of PC-5300 installed, here is what Memtest86+ reported:

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Memory  : 895M   1665 MB/s
Chipset : AMD K8 (ECC : Disabled)
Settings: RAM : 351 MHz (DDR703) / CAS : 5-5-5-15 / DDR-2 (64 bits)

Notice the 351 MHz on the third line, above.

With 8GB of PC-6400 installed, here is what Memtest86+ reported:

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Memory  : 8063M   2681 MB/s
Chipset : AMD K8 (ECC : Disabled)
Settings: RAM : 401 MHz (DDR803) / CAS : 6-6-6-18 / DDR-2 (128 bits)

In comparing the first line of output from each test, I'm glad to see the PC-6400 memory is faster (1665 MB/s vs. 2681 MB/s). I believe (please correct me) this is the transfer rate from memory to...the L1 or L2 or CPU. I'm not exactly sure.

The third lines have me more confused. PC-5300 is supposed to run at 667 MHz while PC-6400 should run at 800 MHz. Are the third lines of output telling me the PC-5300 is only running at 351 MHz while the PC-6400 is only running at 401 MHz? If so, why would this be? Is my interpretation wrong?

Thanks

[martini161]

its because thats the bus speed of the memory. this is before it is multiplied by 2 to get the effective transer rate, which is 800mhz (as shown in the parenthesis)