[rescue] Wanted: 133MHz DIMMS

Sandwich Maker adh at an.bradford.ma.us
Wed Mar 7 10:08:23 CST 2007

" From: "Geoffrey S. Mendelson" <gsm at mendelson.com>
" On Wed, Mar 07, 2007 at 10:13:24AM -0500, Sandwich Maker wrote:
" > mine is an early desktop with a rev1 prom.  it's technically pc66
" > though it can be jumpered to various speeds.  sadly, the chips will do
" > pc100 but they don't bring the relevant pin to a jumper block...
" That may be a problem then. If it's PC66, then PC100 or PC133 may not
" work. I have an Intel motherboard that uses PC66 RAM and it refuses
" to work with PC100 or PC133. I actually get a message on the screen
" that the RAM is the wrong speed.
" Some PC100 RAM will work at the slower speed, some won't.

never heard that before...  a little surprised they're -that-

" I've never
" tried PC133, but the refresh may be too slow and data will fall off......

some pc133 is 'high density', some is 'low density'; afaik the
difference is the # of bits in the refresh counter.  low density is
pc100 compatible and as i understood, pc66 also.
speaking of which, i've long known of 256M pc100/133 sticks,
essentially 128M on both sides.  but i was recently in a pc store
helping my gf and her son buy a notebook [lenovo] and noticed -512M-
pc100 sticks.  didn't get a chance to ask details - anyone know?
Andrew Hay                                  the genius nature
internet rambler                            is to see what all have seen
adh at an.bradford.ma.us                       and think what none thought

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