Dimension 8400 seems dead

 

 

System Type: Dimension 8400 Ship Date: 9/30/2004 Dell IBU: Americas Quantity Parts # Part Description 1 C3824 PROCESSOR..., 80547, PENTIUM 4 PRESCOTT DT..., Pentium 4 Prescott DT, 3.0GHZ, 1 MEGB, 800FSB..., SKT-T 1 J3492 CARD (CIRCUIT)..., PLANAR (MOTHERBOARD)..., DIM8400 1 7N242 KEYBOARD..., 104, UNITED STATES..., SILITEK..., LOW COST..., MIDNIGHT GRAY... 1 F2854 KIT..., MOUSE..., PERSONAL SYSTEM 2..., 2BTN, WHEEL..., PRIMAX ELECTRONICS LTD... 1 X0956 PRINTER/PRINTER ACCESSORIES..., CABLE..., USBD4B-10, LIGHT..., BLACK... 1 D3431 KIT..., SPEAKER..., 120V, NMB..., A215, SHIP IN BOX... 1 X2749 MODEM..., V.92, DATA FAX..., INTERNAL..., DONNY..., DELL AMERICAS ORGANIZATION... 1 U5945 ASSEMBLY..., DIGITAL VIDEO DISK DRIVE..., 16X, HALF HEIGHT..., HITACHI LG DATA STORAGE..., CHASSIS 2001... 1 N1192 COMPACT DISK READ WRITE..., 680M, IDE (INTEGRATED DRIVE ELECTRONICS) ..., 5.25" FORM FACTOR..., 48X32, HITACHI LG DATA STORAGE..., CHASSIS 2001... 1 P0151 DISPLAY..., CATHODE-RAY TUBE..., 17, DUAL..., E773C, MIDNIGHT GRAY..., DELL AMERICAS ORGANIZATION... 1 P5288 CARD (CIRCUIT)..., GRAPHICS..., 128, X300, SERVER ENHANCED..., MRMGA8, 2 1 N2999 KIT..., SOFTWARE..., MNY-2K4, STANDARD..., ORIGINAL EQUIPMENT MFGR...., ENGLAND/ENGLISH... 1 P2643 KIT..., SOFTWARE..., MSENC-2K4, ORIGINAL EQUIPMENT MFGR...., ENGLAND/ENGLISH... 1 T7166 KIT..., SOFTWARE..., WP-PRDCT-STE12, ENGLAND/ENGLISH..., V2 1 R2553 KIT..., SOFTWARE..., OVERPACK..., WXPHSP1A, COMPACT DISKETTE W/DOCUMENTATION..., ENGLAND/ENGLISH... 1 G4874 KIT..., DOCUMENTATON ON FLOPPY DISK..., SOFTWARE..., POWERDVD..., 5.1 1 T4340 HARD DRIVE..., 160GB, Serial ATA..., 7.2K, 8MB, Maxtor Calypso... 2 U2414 DUAL IN-LINE MEMORY MODULE..., 512, 400M, 64X64, 8, 240, 1RX8

Hi,

 

I've never posted before, so I hope you will bear with me. Above are the specs to my nieces computer. When you push the button to turn it on, it clicks and does nothing else. With the computer open you can see the small green light on the motherboard. No fans, or anything else. Tried replacing the powersupply but it's still doing the same thing. I hope you can help me.