PC won`t start up EVERYTIME !! PLZ HELP

[mastercool]

Hello everybody!

i have a pc with paramtres as below,below.built it myself.

The problem is:

After i installed Windows xp sp2 restarted it and it showed the boot page os Asus Logo as here and never boot.

i have te restart the pc about 2-10 time so it can boot normally,when it boot normally it works fine and is very fast,too normal.
but
if i shut it down or restart it has the same problem,,plz anybody help,couze i dont wnat to buy another mootherbord.

Also i have made e bios reset,updated bios,changed bios battery.

Parametres:

Operating System Microsoft Windows XP Professional
OS Service Pack Service Pack 3, v.3264


CPU Type - Intel Core 2 Duo E4600, 2400 MHz (12 x 200)
Motherboard Name - Asus P5N-MX (2 PCI, 1 PCI-E x1, 1 PCI-E x16, 2 DDR2 DIMM, Audio, Video, LAN)
Motherboard Chipset - nVIDIA nForce 7050-610i
System Memory - 1920 MB (DDR2-800 DDR2 SDRAM)
DIMM1: Hexon Tech. HEXON 2 GB DDR2-800 DDR2 SDRAM (6-6-6-18 @ 400 MHz) (5-5-5-15 @ 333 MHz) (4-4-4-12 @ 266 MHz)
BIOS Type Award (01/02/08)

Display:
Video Adapter NVIDIA GeForce 7050 / NVIDIA nForce 610i (512 MB)
3D Accelerator nVIDIA GeForce 7050

Storage:
IDE Controller Standard Dual Channel PCI IDE Controller
IDE Controller Standard Dual Channel PCI IDE Controller
Disk Drive ST3360320AS (335 GB, IDE)
Optical Drive HL-DT-ST DVD-RAM GSA-H55N (DVD+R9:10x, DVD-R9:10x, DVD+RW:20x/8x, DVD-RW:20x/6x, DVD-RAM:12x, DVD-ROM:16x, CD:48x/32x/48x DVD+RW/DVD-RW/DVD-RAM)
SMART Hard Disks Status OK

Input:
Keyboard Standard 101/102-Key or Microsoft Natural PS/2 Keyboard
Mouse HID-compliant mouse

NAYBODY CAN HELP ME?????

 

[Rogue71]

you just installed sp 3 not sp2 correct??? id try getting rid of sp3 and see if your problems go away. easy way to test that is throw another small harddrive in there and reinstall xp to sp2 and see if you have your problems.