
As the DVD drive has PATA interface (connector), for this I'll need a SATA to PATA caddy (a 12.7mm one), which you can buy anywhere for around 10-15 euros. Next thing I'll do is putting a 120GB SSD into my optical bay. Don't be afraid to flash the BIOS, just do it manually and do not use any automatic updater or other software. This upgrade costed me 15 euros, it's a joke.

The CPU temperature is stable, always around 50 celsius, + - 2. The overall performance of the laptop is hugely improved, in one word I can't recognise my 12 years old laptop. Removed 1GB of RAM and put a 2GB stick in one slot, with 1GB in other. After this came the disassemble: cleaned the heat sink and fan, removed the old CPU and installed the T7500, with new thermal paste applied. AHCI offers maximum performance though, but I don't want to reinstall the OS at the moment, cause the Windows 10 with the latest update works surprisingly great. Unless you want to install a fresh copy of OS, revert back to IDE in BIOS and it will work fine. After the BIOS update HDD was automatically put in AHCI mode and Windows wouldn't boot up. You can put a CPU with lower FSB but it doesn't make sense and a higher won't work. Then google for it and verify what is it's FSB. On the top of the tab You will see: Device Name XXXXX and Chip Type: XXXXX. Don't check digital signatures (click NO) and go to second bookmark: Display. Try to verify your chipset clicking: start/run, type: dxdiag and hit enter. I won't pay Ł20 for 0.1GHz and all other parameters are exactly the same. T9500 (2.6GHz) is my limit but it's expensive. Originally on my Toshiba I had T2310 (1.46GHz and FSB 533MHz) and currently I'm running T8100 (2.1GHz and FSB 800MHz).

I taped in Google Intel 965 Chipset and on Intel site I found Intel 965 FSB is 800MHz. Using Hirens BCD I checked my chipset and I found some programs say it's GL960 and some others say it's Mobile Intel 965 Express. When You tape in Google GL960 and open Intel site You will find GL960 FSB is 533MHz so there is no chance to run any 800MHz rated CPU. I've just checked how it's on my Toshiba.
