6.2 No Display
There is no display on both LCD and VGA monitor after power on although the LCD and monitor is known-good.
No Display
Monitor
or LCD module
OK?
Replace monitor
or LCD.
Board-level
Troubleshooting
System
BIOS writes
error code to port by Mini
PCI-E debug
card?
Yes
No
Yes
No
Refer to port error code
description
section to find out
which part is causing
the problem.
Make sure that CPU module,
DIMM memory are installed
Properly.
Display
OK?
Yes
No
Correct it.
Check system clock,
reset circuit and
reference power
Replace
Motherboard
1.Try another known good CPU module,
DIMM module.
2.Remove all of I/O device ( HDD,
ODD…….) from motherboard
except LCD or monitor.
Display
OK?
1. Replace faulty part.
2. Connect the I/O device to the M/B
one at a time to find out which
part is causing the problem.
Yes
No
SMB_CLK
SMB_DATA
LCD_DDC_CLK
LCD_DDC_DATA
M96_HDMI_DDCK
M96_HDMI_DDDA
LCD_A_CLKP
LCD_A_CLKN
KBC_RESET#
H_CPURST#
LPC_RST#
ACZ_RST#
Check following parts and signals:
U705
U712
U704
U16
J701
J705
J1
SB_PWRBIN#
BCLK_CPUP/N
CLK_PCIE_M96P
CLK_PCIE_M96N
PEB_CLKREQ_NEWCARD#
PEC_CLKREQ_MINI#
Parts:
Signals: