Intel Pentium D CPU 2.80 GHz

[Brent N]

Ok I was given a Dell Dimension 9100 It has an Intel Pentium D cpu 2.80GHz. I am trying to find out if this is a 32 or 64 bit. I currently have no operating system installed on it as I am in the process of changing it over to use it for storage back up. The Bois reads as:
Processor Type = Intel Pentium D CPU 2.80 GHz
Processor Clock Speed = 2.80GHZ
Processor Bus Speed = 800Mhz
Processor L2 Cache = 2MB
Processor L3 Cache = 0
Processor ID = 0F44
Multiple Core Capable = Yes (Dual)
Hyper Threading Capable = No
64-Bit Technology = Yes (intel EM64T)

I have looked through several sites including Intel and getting different answers. Some say it is 64-bit while others say it is not true 64-Bit while others just say it is 32-bit.

I was looking in the Dell website looking up the service code and it says it had Windows XP 32-bit installed. Why would they put a 32-bit Windows on it if it were a 64-Bit? If this is not a 64-Bit is there a way to upgrade it to a 64-bit?

Thanks in Advance.

 

[MrN1ce9uy]

Intel says it has a 64-bit instruction set- http://ark.intel.com/products/27512/Intel-Pentium-D-Processor-820-2M-Cache-2_80-GHz-800-MHz-FSB

 

[Brent N]

Intel says it has a 64-bit instruction set- http://ark.intel.com/products/27512/Intel-Pentium-D-Processor-820-2M-Cache-2_80-GHz-800-MHz-FSB

So the 64-bit Software should wok just fine on this machine then? Just don't make since why they would put a 32-bit windows system on a 64-bit computer.

 

[TechyInAZ]

From my personal experience with a Pentium D 840, the CPU runs faster with a 32-bit operating system. I'm not precisely sure why, but after running both 64-bit and 32-bit versions of windows 7, the 32-bit seemed to be quicker and it allowed my overclocking to go a lot further.

 

[TechyInAZ]

Intel says it has a 64-bit instruction set- http://ark.intel.com/products/27512/Intel-Pentium-D-Processor-820-2M-Cache-2_80-GHz-800-MHz-FSB

So the 64-bit Software should wok just fine on this machine then? Just don't make since why they would put a 32-bit windows system on a 64-bit computer.

Yeah 64 bit software will work fine.

 

[akseli]

All Pentium D's are 64 bit capable.

As for why normal computers from that era has 32 bit XP, well 64 bit XP was a very rare option. Just about no one had it, and it was more expensive. As such 64bit XP driver support was weak, because not was not mainstream.

All typical computers did not have enough memory to benefit/require from 64 bit OS anyway even when upgraded. 64 bit Windows started to become common only around Windows 7 onwards. Vista was available with same license(meaning same price) for 64 bit and 32 bit but it didn't really become common either.


If you have license for any 64 bit WIndows you could install it and have no disadvantages. Majority of 32 bit drivers work just fine. But neither would you have any advantages either for going 64 bit. Even as the computer supports 4 GB and if you'd have that much, the CPU is too weak to use it effectively.

Overclocking Netburst(Pentium 4 and Pentium D and few others) CPUs and running 32 bit probably overclocked better. They were likely more restricted by CPU and it's heat production, than bus speed as later geneneration Core.

 

[Nine Layer Nige]

Yeah, I have a spare DELL OptiPlex 745 with a Pentium D 3.00Ghz chip. I have got it running Win 10 64bit and Linux Mint 18 64 bit. This is an old box from around 2006 and built for XP but still runs modern OS. Ok, its not a rocket ship, but it works.