According to the following website this processor supports 64 bits:
Instruction Set : 64 bits
So I would recommend running the Intel(R) Processor Identification Utility to verify if the system is properly recognizing the processor.
You can download the Intel(R) Processor Identification Utility at:
If it reports that the processor supports 64 bits, then I would suggest contacting Microsoft* Corporation to determine the reason that you cannot install the 64 bits version of your operating system.
In case you cannot read the screen shot....it says :
Intel(R) 64 Architecture
64-bit computing on Intel architechture requires a computer systemwith a processor, chipset, BIOS, operating system, device drivers and applications enabled for Intel(R) 64 architechture. Performance will vary depending on your hardware and software configurations. Consult with your system vendor for more information.
Your Motherboard has a socket 478. There are no Prescott cpu's for socket LGA 478. There are no 64-bit capable socket 478 cpu's as far as i know. The first 64-bit where made for socket 775. According to the Intel CPU Id utility, you have a P4 3.00E Processor which only has Hyperthreading and 800 FSB and 1MB L2 Cache memory.
Intel makes a 64 bit CPU that works in a 478 socket But it's a mobil CPU you could use it but you would probably have to fabricate a cooler to make sure you had good cooling . the cpu is a T7200. dual core at 2.0 800Mhz
I believe you've got some things mixed-up. T7200 is mobile processor but a Core 2 Duo one, meaning not a Pentium 4. It is compatible with sockets PBGA479, PPGA478 which are mobile sockets (correct), but not pin compatible with Desktop Socket 478. ASUS was the only company in those days that produced an adapter for Pentium M to socket 478 (ASUS's CT-479 Pentium-M to Socket 478 Upgrade Kit) and it was only compatible with some socket 478 Asus motherboards (P4C800-E Deluxe,P4P800-VM and P4P800 SE) with certain Bios versions only, and it came with fun cpu fun.
It supported only the following Families of Intel Pentium M CPU's:
Dothan 1.5GHz~2.26+ GHz
Baines 1.3GHz~1.7+ GHz
Celeron M 1.2GHz~1.7+ GHz
* Intel® Pentium® M processor Low Voltage & Ultra Low are NOT supported by this product.
These families run with FSB 400/533.
You are probably right , If I was this guy I would get a new Board and a new CPU , Because I think he's beating a dead horse.
Or XP pro 32 bit.
You can not ( reformat ) a Operating System from 32 bit to 64 bit , If you want to run 64 bit OS , you need to buy a new OS , windows XP Pro 64 Bit are on Ebay for about $60.00, New.
Doc I had to read this post four times before it hit me ,He's asking about changing the operating Sys. From 32 bit to 64 bit , That would be a good trick if you could do it ,, I don't think this has anything to do with the CPU.??