Has a 2.0 cpu,can i upgrade it to a 2.8cpu.And how to tell if the motherboard will support it

Having a 32-bit or 64-bit operating system mainly depends upon the operating system that is loaded on your primary hard drive (generally drive C:). However, your motherboard's components, i.e., processor and amount of system RAM, will be a major factor in determining whether you can only run a 32-bit operating system, or upgrade to a 64-bit system.

go to this site and pick one that is better that whatever one you have( can't tell you what is an upgrade as you haven't said what CPU you have.)

http://h18000.www1.hp.com/products/quickspecs/12764_div/12764_div.HTML

Please run CPU-Z (http://www.cpuid.com/softwares/cpu-z.html) and tell me any information about your processor. Depending on the Socket, I can tell you all the upgrades possible.

Hello!

If you want upgrade you CPU, you must first know, specification of motherboard.
If the motherboard can´t see a new CPU, more exactly bios, you can try only one upgrade bios.
I give you a link for a manual and upgrade bios.

When you upgrade bios, try new CPU, if bios again don´t see a CPU, you can´t do anything about that.

More importantly RAM will give you better performance, if your computer is low on ram it doesn't matter much what the cpu is.

you can put up to 4GB of ram into it
4 x 184-pin DDR SDRAM DIMM socket support up to 4 GB
Support DDR400/333/266 unbuffered DDR SDRAM

here is a list of supported CPU's
http://www.ecsusa.com/ECSWebSite/Support/CPU_Support_Model.aspx?detailid=493&MenuID=69&LanID=0

I think any of the dual cores on that page will be a OK upgrade.

So if you upgrade your ram to 2GB and a Dual core 4800+ that should be good. but in the long run it might be smarter to upgrade to a new motherboard and even faster cpu, with DDR 2 memory, the memory ddr2 is really cheap these days.

You cannot change your fsb. You need to upgrade to a cpu with a fsb speed that your board can support. Once you install the new cpu your bios will set the fsb to the higher setting of your new cpu if your board supports it. If you have your board specs it will tell you something like supports fsb 1066/800. That would mean you could upgrade to a supported 1066 fsb cpu. Hope this helps & please remember to rate my answer. Thanks.

download and run everesthome
click on the + by motherboard
click on cpu then click on motherboard
the cpu will id the the processor
motherboard will id the FSB speed.

CPU-Z
click on the download latest version, left column
when you unzip and run this it will tell you if the processor is 478 or 479 pin both have 478 pins but location is different.

Abit KR7A-133R Motherboard
Socket A (also known as Socket 462) is the CPU socket
Best I can tell you should be able to get away with it.


http://www2.abit.com.tw/page/en/motherboard/motherboard_detail.php?pMODEL_NAME=KR7A-133R&fMTYPE=Socket%20A&pPRODINFO=Specifications&fSEARCHTEXT=KR7A-133R

Most of the newer processors use a different socket.

The Socket 939 chips go up to an Athlon 64 X2 4400+.

However: keep in mind that your computer's bios may not be setup to use newer CPU's. The only way to tell is to check compaq's web site for updates or just to buy a CPU and try it.

Good luck!

according to this cnet.com (http://reviews.cnet.com/desktops/dell-dimension-5100-pentium/4505-3118_7-31429803.html) the dual core is not an option. I'm not sure if that means that Dell doesn't offer an upgrade, or if it's not possible. First, open your tower and look over the Motherboard for the manufacturer and model. Once you have those, google them and look for the specs of what cpu's are supported by that motherboard. If you can and do decide to upgrade, check with the CPU manufacturer to see how strong of a power supply you need for the more powerful CPU. You're might be ok, but you might need to upgrade the PSU (Power supply) with the processor. From your description, I can't tell what motherboard is in your Dell. That will be the limiting factor. Get the motherboard specs and you'll know what you can do.