my gateway pc wont boot up there is no screen display and fan is only running, no light in front panel of the case, no sound. i have tried to pull out all the hard drives, ram, hdd, dvd drives and change new one but nothing happens. i also tried to pull out the battery and wait 1 hr to put it back but still nothing happens.. any idea how to fix this one? this was happen when i am reformatting my hdd and after reaching 98% in copying data files of windows xp the screen turns black and tried to wait and push the button of the monitor but the pc crashes i turn it on again and thats it the problem comes out

my specs is

Part Number: 5485Gateway GT5020j Desktop Computer
Model: GT5020j

Following are the specifications for the Gateway® GT5020j desktop computer.

Feature Specification
Processor Intel® Pentium® 4 processor 630 with Hyper-Threading Technology

* Operates at 3.0 GHz, 800 MHz FSB
* 2 MB L2 cache

Chipset Intel® 945G
# Memory Installed: 512 MB 533 MHz (PC4200) DDR2 memory (two 256 MB modules)
# Expandable to: 4 GB
# Video Intel® Graphics Media Accelerator 900
Audio Intel High Definition Audio subsystem consisting of:

* 8-channel (7.1) audio subsystem with five analog audio outputs and one S/PDIF optical digital audio output using the Sigmatel® 9220 audio codec

Hard Drive 200 GB 7200 RPM Serial ATA hard drive
Optical Drive DVD +/- RW, 16X Multi-Format Double Layer drive

* Up to 8.5 GB with Double Layer media
* Write max: 16X DVD +/-R, 6X DVD-RW, 8X DVD+RW, 4X DVD+R DL, 40X CD-R, 24X CD-RW
* Reads max: 16X DVD-ROM, 40X CD-ROM discs

Media Reader 8-in-1 Digital Media Manager supporting the following:

* CompactFlash Card
* IBM MicroDrive
* Memory Stick
* Memory Stick Pro
* SmartMedia Card
* Secure Digital(SD)/MMC
* Compact Flash
* Multimedia Card
* USB 2.0

Modem 56K ITU V.92 ready Fax/Modem
Network Intel Integrated 10/100 LAN
Power Supply 400 watt
# Interfaces PS/2 keyboard port
# PS/2 mouse port
# Seven USB 2.0 ports (four on rear panel, two on front panel, one in media reader)
# Three IEEE-1394a ports (one on rear panel, two on front-panel)
# One serial port
# One parallel port
# One RJ-45 LAN port
# Seven audio jacks (five on rear panel, two on front panel)
# One S/PDIF digital audio out
# Add-In Card Slots One PCI-E ×1
# Two PCI Conventional
# One PCI-Express ×16
# Drive Bays Two external 3.5-inch
# Two external 5.25-inch
# Two internal 3.5-inch
# Input Devices Premium multimedia keyboard (JP)
# USB optical mouse
Speakers Amplified stereo speakers
Dimensions (H × W × D) 15.4 × 7.3 × 17.9 inches
Weight 23.5 lbs (computer only, no packaging)

I understand u have new rams and all but are they the same and is it inserted properly?Try putting in only 1 ram at a time and both sides for example 2 rams use 1 ram on first slot then take out then 2nd ram on first slot then takeout then 1 ram on 2nd slot...And see if system is bootable

yes they are both the same i never tried putting 1 ram on it but i'll try it.. i'll be back here later..

i tried what you told me but still no good

So what u are saying is that computer after almost completing fresh install of xp will not boot up.Hmmm...possible that your bios is corrupted as your symptoms are quite similar to another problem i fixed regarding the acer aspire one zg5 model netbook.k back on track.It may not be your bios try unplugging everything from your computer leave only power to cpu and moniter and moniter cable.unplug usb,hard disk,ps/2 mouse/keyboard,all take out both ram take out (i know u did this before just give it another shot)the battery for 10 min put the battery back in .Ensure PSU properly connected.psu back switch is on 20/24 pin connector plugged in properly.Switch on your pc.If it is able to boot it may be ur ram/hard disk/other peripherals problem.pls try above steps .

actually it wasnt able to make a fresh installation coz it crashes when reaching 98% in copying windows xp files, i've tried all the steps you've mentioned above and none of them works, i dont know what is really happening on this pc. psu is connected correctly and still it cant boot up.

Then this could be motherboard side problem probably bios.When you on

switch the computer does your keyboard caps,shift,screen lock light up

and if yes how many times?

Possibly a corrupted bios somehow .SImilar to the acer aspire1

netbook.Which suddenly gets bios corrupted.Pls tell me the lights.