09-22-2018 07:43 AM
i've tried to upgrade my old T61 (which currently holds a Merom T7300) to a Penryn T9500 that i've got on ebay. I followed all the steps carefully (BIOS Middleton flash, instructions, forums/google) but i couldn't get the system to boot up.
The screen stays completely black, the LED status indicator though shows that the system is currently "active", the drive is trying to boot up, the fan spins for a few seconds and there's no signal tone. The system will remain at this state if it is not shut down.
I've tried several workarounds like CMOS-Reset (hook off mainboard battery, pushing power-on button with different patterns), set default BIOS settings after flashing, all kinds of BIOS CPU settings - still no use. The old T7300 works perfect after inserting.
The BIOS shows the correct version of the Middleton BIOS Mod and SATA II is working - so i guess that the flash was successful.
I've tried to boot up without any CPU inserted and the symptoms were exactly as mentioned above (with the T9500).
So my question is: is it due to hardware limitation (Mainboard: 41w1487) or just a defective CPU?
My system information:
Lenovo Thinkpad T61
CPU: Intel Core Duo T7300 - Merom - Socket P (478)
Display: 14,1" 1280x800 - WXGA TFT Widescreen
Graphics: Intel GMA X3100
Chipset: Intel 965 Express Chipset
Storage: Kingston SSD 120GB
i know, 2018 and still with the T61, but i love this thing!
Thank you for any help you can provide! :-)
09-27-2018 08:22 AM
Did you update the BIOS to the latest version beffore swapping CPUs?
09-27-2018 09:01 AM
According to https://thinkpads.com/t61/ your motherboard is an older version not compatible with Penryn without Middleton BIOS.
However it should give a clear error message about temperature sensor and not proceed unless with Middleton. Hence more evidence pointing to the processor itself.
09-28-2018 12:24 AM
thank you for your kind support!
@richk: yes, i flashed the latest version of the Middleton BIOS before swapping.
@freddellmeister: yes, fan and heatsink are in order. I also thought that it should at least give me an error message so i'm pretty sure now it's a defective CPU. I will buy a new one and keep you updated.