To: pae who wrote (340 ) 3/8/1998 3:24:00 PM From: Zeuspaul Respond to of 14778
Memory reuse strategy..... The idea of working a motherboard/chipset from the PII 233 single CPU to the dual PII 333 with a memory upgrade along the way as prices come down certainly seems like a sure method of playing the upgrade path given the options available to us today. The short term horizon has the BX chipset and the 100 MHz bus. Estimates are for April 15 for motherboards and the 350-400/100 CPU. The 350-400/100 PII CPU's will require PC100 compliant RAM. In most cases 100MHz RAM available today will not service the 100MHz systems. I have seen PC100 compliant RAM for sale as of the last week or so. $329 64 MB, 8x64, SDRAM CM654S64-BX at ESC Technologies esc-tech.com A stiff premium to pay for buying into the future. Compare to $200.07 for Corsair 64 MB, 8x64, Unbuffered, SDRAM CM654S64-10 Both of the above will work in todays LX motherboards with at least one exception. The Intel LX motherboards do not appear to work with PC100 RAM. (from ESC above link PC100 modules are backward compatible, except for Intel AL440LX, R440LX, DK440LX, NX440LX motherboards that require specific modules. ) Anand also indicates that the PC100 compliant RAM is downward compatible in his just released review of PC100 RAM.anandtech.com excerpts >>What became obvious to many users, as well as manufacturers was that a mutual standard for the manufacturing and mass production of SDRAM chips and Printed Circuit Boards (PCB's)had to be initiated. << >>The reason the industry giants, more specifically, the microprocessor industry giant, Intel,never stepped up to set a standard was because they were quite aware that a huge jump was about to be made in the memory bus speed the System RAM would have to operate at. Any standard Intel might have set would have simply been replaced by a more advanced standard in under a year, most likely angering the users that upgraded to the new standard of SDRAM only to realize that their DIMM's won't work with future motherboards<< >>Conclusion As a first look, there is not much we can tell about the compatibility of upcoming PC100 SDRAM DIMMs, however the current tests show that the DIMMs have no problems with even the most picky LX motherboards, older TX and VP2 boards don't seem to have any problems with the more expensive modules either. The bottom line is that if you're planning to buy SDRAM that will last you for some time, don't go after anything but modules that officially meet the PC100 specification. << bold added One might envision building on your hardware base PII 233 followed by PII 333 (X2?) followed by new motherboard and PII 400+. The following components should? may? follow thru to the next machine. Millenium II video(s), case, power supply, independent SCSI card, modem :( Network ,21 in monitor(s) and PC100 RAM. Need a little cost analysis on paying an upfront premium for RAM, SCSI, SOUND. Also, one must consider keeping the machine alive as a secondary networked computer for back-up or... Also, PC100 spec is relatively new and there will most likely be a revision or two :( Regards Zeuspaul