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To: Tenchusatsu who wrote (41846)5/9/2000 2:36:00 PM
From: Bilow  Respond to of 93625
 
Hi Tenchusatsu; Forgive me for being at all doubtful of Dell's ability to put out a cheap 800MHz RDRAM machine. I thought that they already had one, until I discovered that the Dimension XPS B series, who's prices have been quoted frequently on this thread, was actually running at 566MHz.

For the Dimension XPS B series memory rate, go to the following Dell website:
rcommerce.us.dell.com

Aside: Prices (for PC600 memory, undoubtedly:)
256MB add $480
384MB add $1420
512MB add $1820

Press "Help me choose" next to the Memory link. You get the following notes:
Why RDRAM© (on the XPS B only) is better than SDRAM (on the XPS T and L series)
Peak memory bandwidth is 33% greater with RDRAM than with PC100 SDRAM


And in the table, they give the memory speed as 566MHz. No mention of any advantage to plugging PC700 or PC800 memory into those slots. The implication is that the Dimension XPS B could only run at PC600 rates (i.e. 566MHz). Kind of makes you wonder why they didn't build the motherboards to run with faster memory...

Did you catch that Jdassoc post re PC800 with small RDRAM count being incompatible with the Intel i840 motherboard? This technology probably still has a few minor bugs to work out.

The above instructions don't work on the Optiplex, because they do not (yet?) have a "Help me choose" button on the configuration. Maybe they will get one later.

Until then, well we all know what happens when you plug PC133 memory into a PC100 system.

-- Carl