Now the laptop from 2005 is far faster than it was when it was new!

So now my laptop is working again

Turned my aging T420 into an incredibly speedy laptop

if you know some basics hardware instalation, my laptop got a lot faster after i installed it ran windows in it.

My old Y580 laptop has a slow HDD disk running at 0.5M/s, and the laptop is always frozen because Disk is running 100%

but you needn't worry as it's right around its stated maximum speeds out of the box

Slid right into an Acer Aspire S7 and worked as it is supposed to.