What happen when a 32 Bit Processor run on 64 Bit Windows?

Hi, as the subject line ask, I just wonder what happen, because I'm running on an older PC which is a 32 Bit PC, and a 32 Bit CPU, but my PC spec is capable of running the 64 Bit windows but the problem is just only the CPU doesnt support 64 Bit Windows, and because of I used to read the difference between 32 Bit and 64 Bit, but I just wonder is it possible for my pc to install the 64 Bit windows without damaging my processor?

here is my PC spec:
Intel Pentium 4 550J HT 3.4Ghz
3.2GB of RAM (2.89GB Usable, 3xGB, 1x256MB DDR400 PC3200)
660GB (1X160GB, 2x250GB Serial ATA)
ATi HIS Radeon HD 4650 512MB PCI-E
Windows 7 Ultimate (Build 7600)

and I have about 4x2GB more, from my cousin which he wont use it n has gave to me, but If i can install the 64Bit PC, I will upgrade all the RAM to 8GB.

[DTKT]

If you are correct, you just taught me something new about processors. I thought there was no such things as a 32/64 bit processor. The difference is in the Windows software itself. You pick 64bit if you want to have 4GB or more of RAM.

[borg_7_of_9]

I one word NO your cpu dosn't have the 64bit instruction set!

[kdawgmaster]

i think it may limit the amount of memory the CPU can access as a whole. im not 100% sure so some one correct me if im wrong.

[darkkterror]

You won't be able to install a 64-bit operating system on a machine with a 32-bit CPU.

[borg_7_of_9]

Originally Posted by kdawgmaster

i think it may limit the amount of memory the CPU can access as a whole. im not 100% sure so some one correct me if im wrong.

According to intel it Has I64A for large memory access enabling it to address 64bit for memory but I don't know if a 32bit os can use it all!

Originally Posted by darkkterror

You won't be able to install a 64-bit operating system on a machine with a 32-bit CPU.

You have answer the exact sentence as I expect someone would give this answer, so if I want to install the 64Bit windows then I will have to get a new processor, and which processor should it be? can u suggest some of the budget processor that is kinda popular?

[madpistol]

You won't even be able to start the install of a 64-bit OS if your CPU doesn't support 64-bit.

Call it a safe guard against terrible disappointment.

Originally Posted by borg_7_of_9

According to intel it Has I64A for large memory access enabling it to address 64bit for memory but I don't know if a 32bit os can use it all!

as I read and understand from the support page - difference between 32Bit and 64Bit in MS Technet, they said sth like the 32Bit can address about 3.3GB of memory (assuming you have more than 3.5GB RAM).

[madpistol]

Originally Posted by CGSDR

You have answer the exact sentence as I expect someone would give this answer, so if I want to install the 64Bit windows then I will have to get a new processor, and which processor should it be? can u suggest some of the budget processor that is kinda popular?

In order to answer this, we need to know what motherboard you have and what your budget is to upgrade.

[Dragunovhun]

Is that a Socket 478 motherboard? In that case, a completely new build is in order.

[masta121]

Pentium 4 and before are 32 bit CPU's on Intel's side, Athlon and before for AMD's side. No, 64 bit wont work.

[madpistol]

Originally Posted by Dragunovhun

Is that a Socket 478 motherboard? In that case, a completely new build is in order.

http://processorfinder.intel.com/det...px?sSpec=SL7PY

It's socket 775.

Originally Posted by madpistol

http://processorfinder.intel.com/det...px?sSpec=SL7PY

It's socket 775.

Yeap It's a 775 LGA socket, the mainboard mfg is Asustek model Puffer, on intel chipset i915P/i915G. and as I know, i wont be able to overclock that CPU too because of it's an OEM from HP.

[madpistol]

That chipset isn't going to support anything but the P4's. You're going to need a new computer if you want to upgrade to a 64-bit OS.