jfoust

hello all. i am fixing a computer for a friend and have narrowed the problem down to either the cpu, mobo or maybe even both. here's the situation:

They have a compaq presario 6420nx desktop pc that's a few years old:

US Product # DA236A
Chassis (Color) Minitower – Silver/Black
Color detail Black/Gray
Microprocessor AMD Athlon XP2200+ 1.8 GHz
Frontside Bus Speed 200/266 MHz
Processor Architecture PGA462 Socket A
Chipset Via KM266
Hard Drive 80 GB Ultra DMA
Drive RPM 5400 RPM
Memory 256 MB DDR SDRAM
Memory Max 1 GB
Memory Speed 2100 MB/Sec
Total DIMM Sockets 2-184 pin
Available DIMM Sockets 0-184 pin open
Primary Cache (L1) 128 KB
Second-Level Cache (L2) 256 KB
Multimedia Drive 16X maximum speed DVD-ROM
CD, DVD Rewritable Drive CD-RW (40X/10X/40X)
Diskette Drive 3.5” (1.44 MB)
Fax/Data Modem Lucent V.92 56K modem
Network Integrated 10/100 Base-T
Keyboard Compaq Internet Keyboard (PS/2)
Mouse Internet Scroll Mouse (PS/2)
Sound Integrated Realtek ALC201 (AC97)
Speakers N/A
Speaker Form Factor N/A
Total Expansion Slots (3) PCI (1) AGP 4X 1.5v
Available Slots (2) PCI (1) AGP 4X 1.5v
Total Drive Bays Ext. (1) 3.5” (2) 5.25” Int. (2) 3.5”
Available Drive Bays (1) 3.5” Int.
Total External Ports (1) Serial (6) USB 2.0 (1) Parallel (2) PS/2
Available External Ports (1) Serial (6) USB 2.0 (1) Parallel
Front Mounted Ports (2) USB 2.0
Video Graphics (AGP) Integrated ProSavage AGP (Via KM266 Chipset)
Graphics Memory 32 MB of DVM
Tower Dimensions 22.25 x 11.25 x 19.875 inches
Power Supply 200 Watts

The problem is the computer will not even post - only the power lights come on along with power supply and case fan and cpu fan. i happen to have a home built pc with a pc chips mobo with these specs:

Brand PC CHIPS
Model M848A (V5.0)
Supported CPU
CPU Socket Type Socket A (Socket 462)
CPU Type Athlon XP / Athlon / Duron / Sempron
FSB 400(OC)/333/266MHz
Chipsets
North Bridge SiS 746FX
South Bridge SiS 963L
Memory
Number of Memory Slots 2×184pin
Memory Standard DDR 400
Maximum Memory Supported 2GB
Expansion Slots
AGP Slots 1 x AGP 4X / 8X
PCI Express x16 None
PCI Slots 4
Storage Devices
PATA 2 x ATA100 up to 4 Devices
Onboard Video
Onboard Video Chipset None
Onboard Audio
Audio Chipset Realtek ALC655
Audio Channels 6 Channels
Onboard LAN
LAN Chipset VIA VT6103L
Max LAN Speed 10/100Mbps
Rear Panel Ports
PS/2 2
COM 1
LPT 1
USB 4 x USB 2.0
Audio Ports 3 Ports
Onboard USB
Onboard USB 1 x USB 2.0 connector supports 2 ports
Physical Spec
Form Factor ATX
Dimensions 12.0" x 7.5"
Features
Power Pin 20 Pin
Packaging
Package Contents M848A (V5.0)
Driver Disk
User Manual
Rear I/O Panel Shield
IDE/PATA Cable
FDD Cable

i'm using an athlon xp also.
my post reports clock of 1100 mhz.

any way, since i have a socket a mobo, i took their cpu out and installed it in my system. the same thing happend to my system, no post. i figured for sure it was their cpu but i figured i should try my athlon xp in their machine before i order another one for them. when i did, their pc still did the same thing. now what? could the mobo be bad too? i put one of my mem sticks in their system also and removed theirs just to see if mem was bad but same deal. is there a better way to troubleshoot this?

brian

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formerly brianmay27
Main laptop: hp dv9005us | turion 64 X2 1.6 ghz | 3 GB ram | Vista ultimate | 240 GB HD
First build: pentium e2160 3.2 GHz | gigabyte GA-P35-DS3L | 2.5 GB ram | 160GB HD
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