on ibm thinkpad 560 trying to upgrade bios to add 64meg ram chip.went to ibm website and got latest bios v1.20&put 64meg ram chip(edo as noted but not ibm oem)&ran upgrade. said upgrade not needed and still only showing 40megs.perhaps needs propriatary ibm ram or can't upgrade as ibm tech article tp560 memory options says? Help,don't want to mess up bios.

herb, If I am following you correctly? You put new ram in and flashed your bios. Lets go to step 1 first, Why did you want a bios update? Does your computer need this to see extra ram? If so then upon bootup screen what revision posted? Is it the new revision number or the old? Did you get the correct bios for your model? Step 2 did you get the exact ram as specified for your notebook? Does it match the documentation that came with your laptop? Meaning the same speed of ram? I would tell you this, to be on the safe side. I do recommend that you update your bios as it does fix a host of problems that were found after the laptop was sold. But I would recommend that you take the computer to a computer repair shop that could update the bios while you wait. They can also check the ram out and see if its compatible with your laptop.

The Bios update is necessary for the system to recognize the 64MB upgrade. Need Bios upgrade for the 64MB module. 2.ThinkPad 560 Series must have a BIOS version dated 11/6/96 or later I also know that the module you have needs to be a certain chip structure, 4x16. Can you read the info from one of the black chips on the module.

for both Daniel G& I help U,Thinkpad 560 needs a bios upgrade to recognize 64meg chip.my bios is dated '98.here's the number on the crutial 64meg edo 4x16 ram chip;mt4LC8M8C2. was original ram in micron p2 transport trek 2 running at 366hz. would go to local computer shop but only paid $25 for 560&backpack cd drive at garage sale last weekend&benchtime is $65 per hour. figured if i've got chip why not give it a try.

There is your problem. The module you have is using 8x8 structured chips. This is a single bank module. You need a module which is dual bank and using 4x16 structured chips. This is why you are only reading half the memory.

thanks to I help You, was worried that tp560 bios wasn't upgrading or i screwed it up.can buy ram chip on ebay for less than $30 and now that i know it'll work i will. thanks again! herb

Kudos my friend!! Let me know if you need help identifying the chip on the module you buy.