Motherboard won't boot

[Tom Hill]

I am unable to boot a new ASRock K7VM3 motherboard that I am installing in
an
e-machines H2482 computer case.
I am using an Athlon XP 2400 CPU and 512-meg of DDR RAM, which both were
working correctly in another computer.
After installing the RAM, CPU and CPU fan, and connecting a 300 watt power
supply, I:

1. Connected the power cable to the motherboard
2. Connected a monitor
3. Connected the front panel power switch
4. Turned on the power switch on the power supply
5. Turned on the front panel power switch

The first time I followed these steps, the monitor did indicate the
motherboard was booting (startup routines, prompting to insert boot floppy).

I then did the following:

1. Turned off the power supply switch
2. Conncted the Hard Drive, Floppy Drive, CD Burner and CD ROM to the
mother board with ribbon cables
3. Connected the power supply cables to the Hard Drive, Floppy Drive, CD
Burner and CD ROM
4. Turned on the power switch on the power supply
5. Turned on the front panel power switch

At this point the CPU fan began spinning, but the motherboard would not
boot - nothing would appear on the monitor screen.

Then I did the following:

1. Disconnected everything from the motherboard except the monitor and the
power supply
2. Turned on the power supply switch
3. Shorted the power switch pins on the Front Panel Connector.

Again, the CPU fan began spinning but the motherboard would not boot -
nothing would appear on the monitor screen.

I tried resetting the CMOS but this had no impact.

Any ideas on what's going on here?

 

[Willi]

I am unable to boot a new ASRock K7VM3 motherboard that I am installing in
an
e-machines H2482 computer case.
I am using an Athlon XP 2400 CPU and 512-meg of DDR RAM, which both were
working correctly in another computer.
After installing the RAM, CPU and CPU fan, and connecting a 300 watt power
supply, I:

1. Connected the power cable to the motherboard
2. Connected a monitor
3. Connected the front panel power switch
4. Turned on the power switch on the power supply
5. Turned on the front panel power switch

The first time I followed these steps, the monitor did indicate the
motherboard was booting (startup routines, prompting to insert boot
floppy).

I then did the following:

1. Turned off the power supply switch
2. Conncted the Hard Drive, Floppy Drive, CD Burner and CD ROM to the
mother board with ribbon cables
3. Connected the power supply cables to the Hard Drive, Floppy Drive, CD
Burner and CD ROM
4. Turned on the power switch on the power supply
5. Turned on the front panel power switch

At this point the CPU fan began spinning, but the motherboard would not
boot - nothing would appear on the monitor screen.

Then I did the following:

1. Disconnected everything from the motherboard except the monitor and the
power supply
2. Turned on the power supply switch
3. Shorted the power switch pins on the Front Panel Connector.

Again, the CPU fan began spinning but the motherboard would not boot -
nothing would appear on the monitor screen.

I tried resetting the CMOS but this had no impact.

Any ideas on what's going on here?

Presuming keyboard is connected, have you tried holding down the insert key
on boot up.
Just a idea.
Regards, Will

 

[mdp]

Common causes are HW not seated well (e.g. memory, video card) - try
removing and reseating, and incorrect jumpers/connections on the MB (default
settings from mfg may not be correct for your CPU). For the XP 2400+ CPU,
according to the manual you should have

FSB = 266MHz (FSB_SEL1 - no jumper)
Jumper = 15x (FID0,FID1,FID2,FID3,FID4 = 2-3, 2-3, 2-3, 1-2, 2-3)
CPU Fan is connected to the CPU Fan header (many MBs won't boot if the CPU
fan is not detected)

 

[Rob]

What are the beep codes?
When you know them you can use this site to troubleshoot
http://www.totally-hardware.co.uk/tutorials/hw/beep/

Rob
www.Totally-Hardware.co.uk