Change from Celeron 2.00GHZ to Pentium 4 2.88 /im/888

Compatible Processors Pentium 4, Celeron D, Pentium Extreme Edition, Pentium D 64-bit Processors Compatibility Yes Processor Socket LGA775 Socket
Compatible Processors Pentium 4, Celeron D, Pentium Extreme Edition, Pentium D 64-bit Processors Compatibility Yes Processor Socket LGA775 Socket
Compatible Processors Pentium 4, Celeron D, Pentium Extreme Edition, Pentium D 64-bit Processors Compatibility Yes Processor Socket LGA775 Socket
Compatible Processors Pentium 4, Celeron D, Pentium Extreme Edition, Pentium D 64-bit Processors Compatibility Yes Processor Socket LGA775 Socket

It will take up to a Intel Pentium III 1Ghz or Intel Celeron 1.1GHz CPU.

Here are the specs on the two Pentium III 1GHz chips:
the 100mhz FSB chip:
http://www.cpu-world.com/CPUs/Pentium-III/Intel-Pentium%20III%201000%20-%20RB80526PY001256%20%28BX80526F1000256%29.html

and the 133mhz FSB chip:
http://www.cpu-world.com/CPUs/Pentium-III/Intel-Pentium%20III%201000%20-%20RB80526PZ001256%20%28BX80526C1000256%29.html

Here's the specs on the Celeron:
http://www.cpu-world.com/CPUs/Celeron/Intel-Celeron%201100%20-%20RB80526RY005128%20%28BX80526F1100128%29.html

The fastest Pentium 3 that will work in your board is a Intel Pentium III 1GHz chip. Here is a link to the specs:
http://www.cpu-world.com/CPUs/Pentium-III/Intel-Pentium%20III%201000%20-%20RB80526PY001256%20%28BX80526F1000256%29.html

You could also get a Intel Celeron 1.1 GHz but it only has half the level 2 cache size so it's actually a bit slower than the Pentium III 1GHz chip.
Here's a link to celeron specs:
http://www.cpu-world.com/CPUs/Celeron/Intel-Celeron%201100%20-%20RB80526RY005128%20%28BX80526F1100128%29.html

Well, you can see your computer spesification here:
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00255589&cc=us&dlc=en&lc=en&product=435558&tmp_track_link=ot_search

your socket is mPGA478, so it will be compatible with:
Celeron (Willamette) 1.5 GHz - 2 GHz RK80531RC041128 (BX80531P200G128) Celeron (Northwood) 1.5 GHz - 2.8 GHz RK80532RC072128 (BX80532RC2800B) Celeron D (FC-PGA2 package) 2.13 GHz - 3.2 GHz Celeron D 350 Mobile Celeron 1.2 GHz - 2.5 GHz RH80532NC060256 Mobile Pentium 4 processors (micro FC-PGA4 package) 2.4 GHz - 3.46 GHz Mobile Pentium 4 552 Mobile Pentium 4-M processors (FC-PGA package) 1.4 GHz - 2.6 GHz RH80532GC064512 Pentium 4 1.4 GHz - 3.4 GHz RK80546PG0961M (BX80546PG3400E)
RK80532PG096512 (BX80532PG3400D) Pentium 4 Extreme Edition 3.2 GHz - 3.4 GHz RK80532PG0962M (BX80532PG3400F)
Please Vote if you mind and thanks for using fixya!

Hi,
Compatible Processors Pentium 4, Celeron D, Pentium Extreme Edition, Pentium D 64-bit Processors Compatibility Yes Processor Socket LGA775 Socket
Compatible Processors Pentium 4, Celeron D, Pentium Extreme Edition, Pentium D 64-bit Processors Compatibility Yes Processor Socket LGA775 Socket
Compatible Processors Pentium 4, Celeron D, Pentium Extreme Edition, Pentium D 64-bit Processors Compatibility Yes Processor Socket LGA775 Socket
Compatible Processors Pentium 4, Celeron D, Pentium Extreme Edition, Pentium D 64-bit Processors Compatibility Yes Processor Socket LGA775 Socket


Seems that you need Socket LGA775,and CPU: Pentium 4, CeleronD, Pentium D, Pentium Extreme Edition. For more Details go here:

http://www.google.com/products/catalog?hl=en&q=p5nd2-sli+motherboard&cid=13414569805758042878&os=tech-specs

Yes you can.
Your motherboard is LGA775 socket and supports the folowing processors:
Core2 Duo / Pentium Dual Core (yours) / Pentium D / Pentium 4 / Celeron 4xx series/ Celeron D.

Intel® Core™2 Duo processor (with up to 800 MHz FSB)
Intel® Pentium® Dual-Core processor
Intel® Pentium® D processor
Intel® Pentium® 4 processor
Intel® Celeron® D processor
Intel® Celeron® processor
RICHARDM69

You should be able to upgrade the CPU, since it seems that the DV1000's motherboard uses a socket CPU design. But, obviously, HP would rather have you choose the CPU that you want from the beginning and stick with it.
The first thing to do is to check HP website to see what other configurations were/are sold for your model. If they sell it with faster CPUs then you can upgrade to one of them...

PLEASE NOTE:
In order for a particular processor to be compatible with a particular laptop:
(1) the processor must be physically compatible with the laptop socket, in your case I thing you have a Soket 479 processor
(2) the laptop chipset must support the processor.
(3) the chipset front side bus speed must match the processor front side bus speed, in your case 400Mhz.
(4) the laptop BIOS must support the processor.

So I listed here processors with FSB at 400Mhz, I gues that DV1000 as a 855GM Motherboard that supports only 400Mhz with Socket 479

Pentium M

Banias
Pentium M 1.3 1300 1024 400
Pentium M 1.4 1400 1024 400
Pentium M 1.5 1500 1024 400
Pentium M 1.6 1600 1024 400
Pentium M 1.7 1700 1024 400

Dothan
Pentium M 710 1400 2048 400
Pentium M 715 1500 2048 400
Pentium M 725 1600 2048 400
Pentium M 735 1700 2048 400
Pentium M 745 1800 2048 400
Pentium M 755 2000 2048 400
Pentium M 765 2100 2048 400

Celeron M

Banias-512
Celeron M 310 1200 512 400
Celeron M 320 1300 512 400
Celeron M 330 1400 512 400
Celeron M 340 1500 512 400

Dothan-512
Celeron 205 1200 512 400

Dothan-1024
Celeron M 350 1300 1024 400
Celeron M 360 1400 1024 400
Celeron M 370 1500 1024 400
Celeron M 380 1600 1024 400
Celeron M 390 1700 1024 400

Best Regards

Hi,
In most P4 motherboards there is no setup necessary to change from a Celeron to a Pentium CPU. Just remove your Celeron chip and insert your Pentium chip. All settings should be automatically configured by your mb bios and operating system. This is assuming that your bios setup is set to auto settings for your CPU.
Good luck!
Regards,
Graemevm

You should try to find the manual of your mobo. Search the manufagurer website for the same model number. It usually lists all compatible CPUs.

Socket 478 is for Intel Pentium 4, Intel Celeron, Celeron D and Pentium 4 Extreme. But that doesn't mean your motherboard supports them all. You should still check the manual.