Can I use this CPU in my Dell XPS 400???

I was looking into upgrading my CPU on my Dell XPS 400. Here's what I'm running right now:

Windows XP Media Center Edition Service Pack 3
2.80 gigahertz Intel Pentium D
16 kilobyte primary memory cache
1024 kilobyte secondary memory cache
64-bit ready
Multi-core (2 total)
Not hyper-threaded
Board: Dell Inc. 0FJ030
Bus Clock: 800 megahertz
BIOS: Dell Inc. A05 05/30/2006
NVIDIA GeForce 9600 GT [Display adapter]
Proview 22.0 [Monitor] (22.0"vis, s/n FKSI76109399U, June 2007)
3584 Megabytes Usable Installed Memory

Slot 'DIMM_1' has 1024 MB (serial number 060A1910)
Slot 'DIMM_3' has 1024 MB (serial number E8239AD0)
Slot 'DIMM_2' has 1024 MB (serial number 060A1B14)
Slot 'DIMM_4' has 1024 MB (serial number E8239ADD)

Here are a few of the CPUs I've been looking at. I don't know if these are the right ones.

Intel Pentium D 925 Dual Core 3GHz 4M/800 SL9KA 775 CPU
Intel Pentium D Dual Core 775 3.2ghz 2m/800 CPU _ SL88R
Intel Pentium D Dual Core 775 3.4ghz 4m/800 CPU _ SL9QB

Now I know a little bit about computers. But when it comes to processors I'm clueless. I've seen a bunch of posts here and on other sites saying to just buy a new computer. Well I don't have that kind of cash to shell out. I'm on a very tight budget. All I want is to know what is the MAX CPU I can put into this badboy. Can anybody help???
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  1. I don't think it would be worth the upgrade, but any of the cpu's you listed will work.
  2. Thanks. I'll give one of these a try. They're pretty cheap now. I know it's not worth it to most of you guys, but I like to wait until I can't upgrade anymore. I'm actually going to start building a new comp soon. This is the last upgrade I can really do to my XPS.
  3. I forgot to ask if I need a new fan for the:

    Intel Pentium D Dual Core 775 3.4ghz 4m/800 CPU _ SL9QB
  4. You wouldn't need a new fan.
    If you're looking to build your own soon I'd start off buy purchasing something that you will migrate to the new build ( psu, gpu )

    Something you could also try would be Clockgen ( google it ), it has been used to overclock Dell's ( may or may not work on your board ) and would cost nothing for a little more performance.
  5. I don't really feel comfortable overclocking. I just need something with a little more kick so I can use my comp for another year or so. From what I was told on other sites, this chip:

    Poweredge 850 Pentium D 840 3.2GHZ 2MB Dual Core SL8CM

    would work perfectly in my motherboard. But nobody is 100% certain that it will. Now I've been told that I have to buy a heatsink for the new chip as well. Anyone know of a good tutorial on how to put a heatsink on? What kind would I put on this chip?
  6. How did this work out for you? I also have a Dell 400 and the processor is going out (fast). I have a DIY kit coming with all ATX items, just wanted to know if I can do anything with this machine besides a boat anchor. Details on what you bought for a processor would be helpful, all my other components are in great shape...thanks.
  7. This thread is almost a year old the chances of them responding is slim to none. Start a new thread with your specs and a question if you need assistance.
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