I have received a T61 that is supposed to replace my old T60 as work PC. HW is out of warranty and processor smaller in performance than in current T60 that I’m replacing. This results to 3x longer time when opening Excel files in T61 using Win7 compared to T60 using WinXP.
When attempting to upgrade T61 current processor Intel T7100 to newer Intel T7700 the PC refuses to boot. During first tests the T7700 did boot to bios but after CMOS reset (bios battery removal) T7700 will not boot to bios (only flashes battery and AC leds once). When attempting the same with T7200 from my current T60 I receive the same affect, it will not boot to bios. Only the original T7100 is accepted and it will boot to Windows without issues.
What is causing the T61 for not accepting any other processor? How to adjust T61 to accept processor upgrades?
Lenovo PC is T61 version 7661-HS7. Bios is updated to the latest.