Thinkpads Forum

started out as an ordinary 1830 7cu with the 1400x1050 scrren
also has radeon 9000 in it
now has a upgraded CPU, upgraded FSB to 133mhz and 1gb of fast ddr memory to keep up. i will get exact clocks tonight
combo drive
wireless G atheros card
also has 40gb 5400 rpm HD. case screen and track point are all excellent. slight shine on a few keys. this is my personal home use laptop.

have been using Mepis on it but i might be able to include winxp home if the person wanted.

you will not go faster for cheaper. would like to see 300$ but any offer from a serious person would get my interest.

Would you please elaborate what exactly was upgraded on this machine?

133MHz was the FSB speed of the older T23.
Most T40s/T41s and R50s have a 400MHz FSB, some have a 533MHz FSB, depending on the used motherboard.
By putting a 533MHz Dothan CPU instead of a 400MHz Banias, your system FSB will never also change from 400 to 533!
It might actually reduce the FSB!
And the RAM recommendation for this machine is PC2100 (DDR266). It will also run on PC2700 (DDR333) RAM modules, but these are throttled back to PC2100 speed!
So what do you exactly claim with "upgraded FSB to 133mhz and 1gb of fast ddr memory to keep up. i will get exact clocks tonight" ?

Like ajkula66 asked: precise info please!

not true at all. 400 is 100mhz quad pumped. (you get 4 registers per rise and fall. this is not truly 400mhz) just intel market hype. that said, 133 x 4 is how you get 533 (roughly)

theres a hardware mod you can do to make the mainboard clock generator run at 133, not originally supported on these mainboards.

DDR (double data rate) same pump tech as intels fsb rating, just x2 not x4.

technically now this laptop will run memory at roughly ddr333 or ddr400 (theres a catch to this but that is the idea)

i covered all this in the thread i did on modding the R50 series mainboard.

the cpu im using is a 1.3g celery so its physical clock is 1.7ghz (same as stock BUT is now using the 133 clock instead of 100.) with the right cpu installed somewhere around 2.7ghz would be the max.

by the way this all holds true for all of the new stuff, ddr2, the fsb rating on all intel chips, etc. technically due to latency and other factors GOOD ddr set to the right clock speed and settings can handle the same bandwidth as ddr3. ddr-400 is actually FASTER then ddr2-800, when set up correctly. (its all in the latency) the downside is the higher voltage ddr takes.