Tag Archives: ddr3

bizarro @HP and @Lenovo Intel i5 notebook 4GB DDR3L SODIMM memory problem

bizarro @HP and @Lenovo Intel i5 notebook 4GB DDR3L SODIMM memory problem

got some wierd crucial memory that crashes a HP EliteBook and a Lenovo ThinkPad notebooks

crashes on boot ! and fails memory test ! with the msg “Pa_sed” which i assume means FAILED ! bizarely works fine when “mixed” with a 2GB non crucial ram in a Thinkpad X220 and X410

so the mystery is what is the difference between crucial part no 171994 and no 313550 ?

every other param is IDENTICAL

  • 4GB DDE3L-1600 SODIMM 1.35V CL11 (171994  – B.M16FKD)
  • 4GB DDE3L-1600 SODIMM 1.35V CL11 (313550 – BJ.M8FP)




DDR2 and DDR3 memory is now available in 3 types (@amd, @intel and dualmode)

DDR2 and DDR3 memory for desktops and notebooks is now available in 3 types (@amd, @intel and dualmode)

  • Intel DDR2/3 are 10bit with 8K blocks (DO NOT WORK WITH AMD HW)
  • AMD DDR2/3 are 11bit with 16K blocks (DO NOT WORK WITH INTEL HW)
  • Dual Mode should work with both AMD HW and Intel HW


hp & lenovo and #amd & #intel #memory bus nightmares


lost a few hours yesterday to some hp & lenovo and amd & intel memory bus nightmares started when i tried swapping DDR3 / PC3 / PC3L ram between an HP and two LENOVO notebooks

  • HP 255 G2 with AMD A4 memory bus FIXED at 1600Mhz
  • Lenovo T410 with Core i5 memory bus ONLY works at 1333Mhz
  • Lenovo Z50 with AMD FX7500 memory bus FIXED at 800Mhz

Basically the T41o refused to work with any of the other memory whereas i thought DDR3 ram was downwards compatible.

Actually just looking at my photos maybe PC3L is not downwards compatible with PC3 ?

now is not a good time to buy a #DDR2 #notebook

now is not a good time to buy a #DDR2 #notebook if you want to put 8G of RAM in it

so just add £100 to your DDR2 notebook budget and buy a DDR3 notebook instead


before spending a lot of money to upgrade your notebooks ram check the price difference between DDR2 and DDR3 since if you need a lot of ram it might be cheaper to replace your DDR2 notebook with a new DDR3 notebook !

for example on 13 may 13 the prices were

ie DDR2 is TWICE as expensive as DDR3