1. DM3D/L Training course
by Nick Lai

2. Agenda
DM3D and DM3L
No Power
No Post
How to debug
Key signals

3. DM3D and DM3L The difference between DM3D and DM3L CPU Memory SIO
DM3D is using Intel graphics (915GM North bridge, FSB 533MHz)
DM3L is using Intel graphics (910GML North bridge, FSB 400MHz)
CPU
Banias 400
Dothan 533
Memory
DM3D/L is DDRII which is not compatible with DDR. The socket key is different.
SIO
DM3D/L series are Mac III

4. DM3D and DM3L Video Cardbus LOM MDC Support Express card
DM3D/L is Intel graphic
Cardbus
DM3D/L series are TI cardbus
LOM
DM3D/L series are PCI bus 10/100Base LAN
MDC
DM3 low cost MDC
Support Express card

5. Block Diagram

6. Top

7. Bottom

8. I/O board

9. LED board

10. Touch pad board

11. No Power Short Open Debug skill (Use Power sequence)
Capacitor cracking
Metal garbage
PCB
Assembly issue
Bad parts
Burn parts
Open
Debug skill (Use Power sequence)
Power switch (the current on power supply)
+3VALW
SUN_ON
Flash and SIO interface.
Thermal protector (U8)
Power good (ICH_PWROK)

12. No Post Power level Thermal protector Power good (ICH_PWROK) Clock
Use debug card
POST LED
LCD or CRT no display

13. How to debug
Q&A

14. Key signals Review the schematics CPU NB VGA ICH6 SIO SMbus
CPUPWRGD
CPURST#
ADS#
CPU_VID0~5
Vref NB
VGA
LCD power or LCD signals
Inverter
ICH6
ICH_PWR
PLTRST#
PERST#
SIO
SUS_ON
Most of GPIO
SMbus
Voltage level
Review the schematics

15. Q&A