DFI Blood-Iron P43-T34, User Manual

Page: 116 / 118

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116
Debug LED POST and Troubleshooting
POST
(hex)
25 26 41 50
Debug
Code
Action
00
-> C1
-> C3
->
Stopped at
25
00
-> C1
-> C3
->
Stopped at
26
C3
-> 25
-> 26
->
Stopped at
41
Power on
-> Stopped at
50
BIOS Pr
ogram De
fi nition
Enumerating PCI bus number
.
Assigning memory & I/O resource -searching for a valid
VGA
device &
VGA
BIOS then placing it in C000:0.
Initializing display card. Initializing onboard clock generator
.
Disabling respective clock resource to empty PCI & DIMM slots. Initializing onboard PWM3. Initializing onboard H/W
monitor
devices. Initializing the FDD device. Initializing USB devices.
Possible
Cause
1.
Incompatible PCI devices.
2.
Incompatible USB devices.
3.
Defective graphics card. (VGA
BIOS did not initialize)
4.
The graphics card was not installed properly
.
1.
Defective graphics card.
2.
Initialized wrong BIOS process. (Clock-gen circuit / Super IO circuit)
Detected
fl oppy
error
.
*
Mixed-up BIOS data could be one of the causes too.
1.
USB failed to boot. (BBS issue)
2.
Incompatible USB devices.
Solution 1.
Remove all PCI/PCIE devices and leave only the graphics card to test fi
rst.
T
est the devices one at a time to
determine the one with problem.
2.
Remove all USB devices including the USB keyboard and instead use a PS/2 keyboard to test.
3.
Replace the graphics card.
4.
Remove and reinstall the graphics card.
1.
Replace the graphics card.
2.
Clear the CMOS data.
Unplug the FDD cable and check for errors or check the BIOS settings. *
Replace a new BIOS chip.
1.
Clear the CMOS data
fi rst.
2.
T
ry connecting the device to another
USB port.
3.
T
est the USB devices one by one.
4.
Set the USB power source to 5V
by
means of the 5V/5Vsb select jumper
.