Asrock P4i65G motherboard/CPU

2 versions of the motherboard shown here http://www.asrock.com/support/download.asp?Keyword=P4I65G&Type=&Socket=
p4i65g p4i65gv
The AC97 drivers are listed here download and install

Only if the processor is specified for a Socket 478.

From ASROCK's web-site:

http://www.asrock.com/mb/overview.asp?Model=P4VM8&s=478

CPU - Socket 478 for Intel® Pentium 4/Celeron processor
- FSB 800/533/400 MHz
- Supports Hyper-Threading Technology
- Prescott support

So, it should work. What CPU did you remove?

Prescott 800 is not the model number, that's only a series name/designation. Asrock made several mb's that have the Prescott 800 designation. It's a socket 478 motherboard and could have one of the following model numbers:

P4Dual-915GL
P4i65G
P4i65PE
P4i65PE-M
P4VM890
P4V88+

for a complete list of socket 478/775, go here: http://www.asrock.com/support/download.asp?c=478

or select a matching model number from this page: http://www.asrock.com/support/download.asp

no, the fan is for a socket 775 cpu, you have a socket 478 cpu so the bracket will be different

Here is the link for the Users Manual for the ASRock P4165G.
http://download.asrock.com/manual/P4I65G.pdf
This next one is for the quick installation guide.
http://download.asrock.com/manual/qig/P4I65G.pdf
Hope this helps. And Happy New Year to you too!

ok so its a 478 socket

best board available is an asrock P4I65g
Specification Value Product Description ASRock P4I65G - motherboard - micro ATX - i865G Product Type Motherboard Form Factor Micro ATX Dimensions (WxDxH) 24.4 cm x 19.8 cm Chipset Type Intel 865G / Intel ICH5 Max Bus Speed 800 MHz Processor 0 ( 1 ) - Socket 478 Compatible Processors Pentium 4, Celeron D RAM 0 MB (installed) / 2 GB (max) Supported RAM Technology DDR SDRAM Storage Controller ATA-100, Serial ATA-150 USB Ports Configuration 4 x USB Storage Ports Configuration 2 x ATA, 2 x SATA Graphics Controller Intel Extreme Graphics 2 Dynamic Video Memory Technology 2.0 Audio Output Sound card - 5.1 channel surround Networking Network adapter - Realtek RTL8101L - Ethernet, Fast EthernetView extended Specifications

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According to the product website your board supports all intel socket 478 cpu's. Maybe you bought a faulty cpu ?
M266A

1. Socket 478 for Intel® P4 processor
2. VIA® P4M266A chipset

• FSB 533MHz
• Supports Hyper-Threading Technology
• Hybrid Booster - a safe overclocking feature
• 2xDDR 266/200
• Integrated ProSavage8 3D Graphic

Socket 478, Intel® Pentium 4 / Celeron
- FSB 533/400MHz

If the CPU is dead the problems can be

1. no power
2. no fans etc or
3. power, no beeps (errors)

If the Ram is not compatible it would be constant beeping.

With the board in, and power supply 20pin + 4pin Pent 4 power attached,(#2 and #7 of motherboard layout) remove power cord from power supply.
CLRCMOS0 allows you to clear the data in CMOS. The data in CMOS includes
system setup information such as system password, date, time, and system
setup parameters. To clear and reset the system parameters to default setup,
please turn off the computer and unplug the power cord from the power
supply. After waiting for 15 seconds, use a jumper cap to short 2 pins on
CLRCMOS0 for 5 seconds. Remove the jumper. Remove heatsink and fan from CPU. disconnect cpu and reseat it. Re-install heatsink and fan. Plug in the power cord. Try to boot up. If it still does not boot and (no power, no fans etc.) problem would then be cpu is fried.

Your current motherboard is an mATX form factor. I recommend staying with that form factor for your new motherboard if staying with your current case. When upgrading to the new board you choose don't forget that you may need to upgrade the power supply unit also. You should upgrade to either a socket AM2+ board with dual core amd cpu or socket 775 board with Intel Duo Core2 cpu.