06-26-2008 07:42 AM
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06-26-2008 11:32 AM
06-26-2008 01:14 PM
10-24-2008 12:27 AM
im running a t61p with 2GB(original) of DDR2-5300 RAM so is should be 66MHz FSB or?
systemmanager and CPU-Z tool show a rated FSB of 800MHz!!
my CPU is a T7700
the T61 maintainance manual from IBM/Lenovo shows that DDR2-5300 should be used
so whats going on?
is LENOVO overclocking ?
are the tools displaying the FSB wrong
i'd like to ugrade to 3 or 4GB so what do i buy? DDR2-5300(667) oder DDR2-6400(800)
10-24-2008 03:23 AM
you won't be able to get the speed boost and it would as much as 1.5 times more for the same amount of ram, also all the new Thinkpads use DDR 3, so it is a redundant investment.
In my opinion it is not worth it, but in the end it is up to you.
01-09-2009 12:39 PM - edited 01-09-2009 12:44 PM
Note that those of you with X61 laptops from April 2008 onwards are likely to be using Penryn processors which do run at 800 MHz FSB. Therefore you can install the PC2-6400 modules and take advantage of the minor speed increase. I am running two PC2-6400 2GB modules on this laptop, having taken out the old 1GB PC2-5300 ones.
In any case the bus speed will adjust the RAM speed to 667 if you buy the new memory for the older Santa Rosa platform.
Apparently the X61 will support up to two 4GB modules, though of course, you will never use this memory and it will cost you in the range of €350
X61 T8300 2.3GHz 4GB PC2-6400 Vista SP1 Business x64