How do I find what PLC chip is on my motherboard.?

Question

I am trying to overclock my intel celeron m processor but i need to know what kind of plc chip I have so that i can tell if I can overclock with the program I have. I know that people think it is immpossible to overclock but I know its not so please can you tell me how to find what PLC I have?

I mean PLL and if it is possibly I would like a way without disassembling my computer. I have taken it apart before and i'm good at that but its to time consuming. I will if I have to but is there a scanner or something that wil find it for me?

Answer 1

Yea, I did this with my old 845GRG Intel board that had a Locked bios...You mean the PLL Chip, this is what changes the frequency of your FSB there by increasing your CPU speeds...went from 2.4Ghz to 2.67Ghz on my P4 CPU via raising the FSB using CPUFSB (Front Side Bus) . ;-)
You will need a good magnifying glass to read the tiny little letters and numbers on the chip...


You can modify the CPU frequency in two ways:

1) Changing the multiplier
2) Changing the FrontSideBus

The CPU frequency is the product of multiplier and FrontSideBus. Many mainboards support that the user can switch the FrontSideBus by programming the new frequency with some commands via the SystemManagementBus, so you could change the CPU frequency while windows is running without leaving the operating system.

There are only two disadvantages:

1) You must know the vendor and the version number of the PLL IC that is responsible for the FSB frequency. There are only eight major companies that sell these IC's (cypress bought icw so it is the same internet address)

http://www.cpufsb.de/FSB.HTM

Answer 2

The Celeron M is a laptop processor and you really shouldn't be even thinking about overclocking it (you shouldn't even be thinking about overclocking a desktop processor).

Underclocking the processor should be easy to do though (assuming the cost cutting of the Celeron M didn't result in that ability disappearing).