Toshiba Satellite L40-13g (PSL40E): CPU upgrade

[Calazar]

Now:
Celeron M 440 1.86
Yonah
65 nm

I tried to put 3 different ones:
1. core 2 duo t7700:does not work (not start; black sreen)
2. core 2 duo t7500:does not work (not start; black sreen)
3. core 2 duo t5750:does not work (not start; black sreen)

What processor can be selected for this laptop? Need to modificated bios?

[DeathBringer]

Post a screenshot of Mainboard tab of CPU-Z.

[Calazar]

Post a screenshot of Mainboard tab of CPU-Z.

[DeathBringer]

Your laptop has Socket M, so you can't use CPU with Socket P.
T7200, T7400 and T7600 are recommended for upgrade.

[Calazar]

Your laptop has Socket M, so you can't use CPU with Socket P.
T7200, T7400 and T7600 are recommended for upgrade.

And it is necessary to modify the bios for these CPU?
Thanks for the clarification. Otherwise he has already confused in the information due to the same and similar cpu on these sockets

[DeathBringer]

Come back with suitable CPU.

[Calazar]

Come back with suitable CPU.

Hi. I got a new processor (t7400) , installed it and it worked, haven't done any tests yet.

[DeathBringer]

OK. Do in BIOS Load Defaults, save and exit.
Make a screenshot of regedit with expanded key HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0

[Calazar]

OK. Do in BIOS Load Defaults, save and exit.
Make a screenshot of regedit with expanded key HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0

Hi. I have some time now. I did what you asked. I also tried to install more than 2 gigabytes of RAM, but it didn't work. When starting the laptop, it gave artifacts already on the BIOS logo. Is it possible to install more than 2 gigabytes of RAM?

[DeathBringer]

Hi. I have some time now. I did what you asked.

Thx. All OK now.

I also tried to install more than 2 gigabytes of RAM, but it didn't work. ...
Is it possible to install more than 2 gigabytes of RAM?

It's possible with some laptops based on 943GML chipset. Try fo find 1GB SODIMM with 4 chips on each side and 2GB SODIMM with 8 chips on each side.
Install such 1GB SODIMM in first slot and 2GB - in second.