I have a Computer with a SIS648 / SIS693 chipset on an Asus board. Actually, it's quite old, but I would still like to use it, because it has 1.5GB of RAM and a lot of hardware installed. The processor is a pentium IV with 2533MHz. But I have a big problem with memory performance, which is so severe, that I cannot use this computer for serious tasks, if I cannot fix this:
I have 2243 MB/s memory read performance (which is not good, but still acceptable), but 451 MB/s memory write perfomance, which is absolutely unacceptable. I also searced Google for this particular chipset and memory problems, but nothing found. There are some reports of good!!! memory performance. Or is the problem the memory itself? There are three Samsung DDR333 512MB modules installed; but of course, I also tried, what happens with only one of them: It's the same. I have no idea, what could make writing so much slower than reading. Does anyone know, what could be the problem? The BIOS settings are according to the EEPROMs on the DIMMs, so should be OK. The bus clock is 133.3MHz, and in fixed ralation to the processor clock of 2533MHz (*19). I even checked the bus clock with a frequency counter. The memory clock is 167.3 MHz. This should also be OK for a DDR333. Thank you very much! -- Author: Steffen Maisch INET: [EMAIL PROTECTED] Fat City Hosting, San Diego, California -- http://www.fatcity.com --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB CHIPDIR-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
