Acer Aspire 8940 Service Guide
Page 28
... 75 85 Specification Insyde H20 V0.07 Flash ROM W25x16 8-pin SOIC • Flash ROM 1MB • Support ISIPP • Support Acer UI • Support multi-boot • Suspend to RAM (S3)/Disk (S4) • Various hot-keys for system control • Support SMBUS 2.0, PCI2.3 • ACPI 2.0 compliance with Intel Speed Step...
... 75 85 Specification Insyde H20 V0.07 Flash ROM W25x16 8-pin SOIC • Flash ROM 1MB • Support ISIPP • Support Acer UI • Support multi-boot • Suspend to RAM (S3)/Disk (S4) • Various hot-keys for system control • Support SMBUS 2.0, PCI2.3 • ACPI 2.0 compliance with Intel Speed Step...
Acer Aspire 8940 Service Guide
Page 35
..., SACD (Hybrid), UDF DVD, DVD-R, DVD-R DL, DVD-R 3.95 GB, DVD-R Authoring, DVD-R Multi-Border, DVD-RW, DVD+R, DVD+R DL, DVD+R MultiSession, DVD+RW, DVD-RAM V1.0, DVDRAM V2.0 & 2.1 & 2.2 CD-DA, CD-ROM Mode-1, CD-ROM/XA Mode-2 Form-1 and Mode-2 Form-2, CD-i, CD-i Bridge, Video-CD (MPEG-1), Karaoke CD, Photo...
..., SACD (Hybrid), UDF DVD, DVD-R, DVD-R DL, DVD-R 3.95 GB, DVD-R Authoring, DVD-R Multi-Border, DVD-RW, DVD+R, DVD+R DL, DVD+R MultiSession, DVD+RW, DVD-RAM V1.0, DVDRAM V2.0 & 2.1 & 2.2 CD-DA, CD-ROM Mode-1, CD-ROM/XA Mode-2 Form-1 and Mode-2 Form-2, CD-i, CD-i Bridge, Video-CD (MPEG-1), Karaoke CD, Photo...
Acer Aspire 8940 Service Guide
Page 36
... (Single and Dual Layer) DVD+R (Single and Double Layer) DVD-R (Single and Dual Layer) DVD+RW (Single Layer) and DVD-RW (Single Layer) discs DVD-RAM (Ver.2) CD-ROM CD-R CD-RW Drawer (Solenoid Open), Tact SW (Open), Emergency Release (draw open hole) DC 5 V +/- 5% Item Vendor & model name Performance Specification ..., CD extra, I-Trax CD and UDF DVD-ROM, DVD-Video, DVD-Audio, DVD-R single/multi border(s) DVD+R single/multi session(s) DVD-RW DVD+RW DVD-RAM BD-ROM ver2.0, UDF2.5 BD-R ver1.0 and ver2.0, UDF2.5 BD-RE ver2.0 and ver3.0, UDF2.5 BD-hybrid (only BD part) Drawer (Solenoid Open), Tact ...
... (Single and Dual Layer) DVD+R (Single and Double Layer) DVD-R (Single and Dual Layer) DVD+RW (Single Layer) and DVD-RW (Single Layer) discs DVD-RAM (Ver.2) CD-ROM CD-R CD-RW Drawer (Solenoid Open), Tact SW (Open), Emergency Release (draw open hole) DC 5 V +/- 5% Item Vendor & model name Performance Specification ..., CD extra, I-Trax CD and UDF DVD-ROM, DVD-Video, DVD-Audio, DVD-R single/multi border(s) DVD+R single/multi session(s) DVD-RW DVD+RW DVD-RAM BD-ROM ver2.0, UDF2.5 BD-R ver1.0 and ver2.0, UDF2.5 BD-RE ver2.0 and ver3.0, UDF2.5 BD-hybrid (only BD part) Drawer (Solenoid Open), Tact ...
Acer Aspire 8940 Service Guide
Page 203
...? Screw it well Replace Ext. Do not replace non-defective FRUs: START Replace LCD panel/ No LCD cable LCD module OK? DDRRAM module OK? DDR RAM module Replace M/B CPU thermal module well No screw? Drain any memory cards and CD/DVD discs. Connect an external monitor to correct the problem. Disconnect...
...? Screw it well Replace Ext. Do not replace non-defective FRUs: START Replace LCD panel/ No LCD cable LCD module OK? DDRRAM module OK? DDR RAM module Replace M/B CPU thermal module well No screw? Drain any memory cards and CD/DVD discs. Connect an external monitor to correct the problem. Disconnect...
Acer Aspire 8940 Service Guide
Page 213
... DRAM refresh Test 8742 Keyboard Controller Set ES segment register to 4 GB Enable A20 line Autosize DRAM Initialize POST Memory Manager Clear 512 KB base RAM RAM failure on address line xxxx* RAM failure on data bits xxxx* of low byte of memory bus Enable cache before system BIOS shadow... RAM failure on data bits xxxx* of high byte of memory bus Test CPU bus-clock frequency Initialize Phoenix Dispatch Manager Warm start shut down Shadow ...
... DRAM refresh Test 8742 Keyboard Controller Set ES segment register to 4 GB Enable A20 line Autosize DRAM Initialize POST Memory Manager Clear 512 KB base RAM RAM failure on address line xxxx* RAM failure on data bits xxxx* of low byte of memory bus Enable cache before system BIOS shadow... RAM failure on data bits xxxx* of high byte of memory bus Test CPU bus-clock frequency Initialize Phoenix Dispatch Manager Warm start shut down Shadow ...
Acer Aspire 8940 Service Guide
Page 214
... keyboard Set key click if enabled Test for unexpected interrupts Initialize POST display service Display prompt "Press F2 to enter SETUP" Disable CPU cache Test RAM between 512 and 640 KB Test extended memory Test extended memory address lines Jump to UserPatch1 Configure advanced cache registers Initialize Multi Processor APIC Enable...
... keyboard Set key click if enabled Test for unexpected interrupts Initialize POST display service Display prompt "Press F2 to enter SETUP" Disable CPU cache Test RAM between 512 and 640 KB Test extended memory Test extended memory address lines Jump to UserPatch1 Configure advanced cache registers Initialize Multi Processor APIC Enable...
Acer Aspire 8940 Service Guide
Page 216
... F5h Boot to Mini DOS F6h Clear Huge Segment F7h Boot to Full DOS * If the BIOS detects error 2C, 2E, or 30 (base 512K RAM error), it displays an additional word-bitmap (xxxx) indicating the address line or bits that error 30 cannot occur on 386SX systems because they have...
... F5h Boot to Mini DOS F6h Clear Huge Segment F7h Boot to Full DOS * If the BIOS detects error 2C, 2E, or 30 (base 512K RAM error), it displays an additional word-bitmap (xxxx) indicating the address line or bits that error 30 cannot occur on 386SX systems because they have...
Acer Aspire 8940 Service Guide
Page 217
.../ Front SPK conn. Description Charger IC Subwoofer, rear, center SPK connector KB connector T/P connector BIOS ROM USB MMB & VR EC/ KBC 32.768KHz ID ROM RAM PWR USB BT connector RTC BAT Chapter 5 207 Chapter 5 Jumper and Connector Locations Top View U6/ PWR/B FFC conn. CN1/ MMB2 FFC con. Y4/ 32... wire con. CN15/ USB U24/ EC/ KBC U22/ ID ROM CN16/ USB CN10/ RTC BAT U23/ BIOS ROM CN13/ MMB & VR Y5/ 32.768KHz PU3/ RAM PWR CN14/ BT conn.
.../ Front SPK conn. Description Charger IC Subwoofer, rear, center SPK connector KB connector T/P connector BIOS ROM USB MMB & VR EC/ KBC 32.768KHz ID ROM RAM PWR USB BT connector RTC BAT Chapter 5 207 Chapter 5 Jumper and Connector Locations Top View U6/ PWR/B FFC conn. CN1/ MMB2 FFC con. Y4/ 32... wire con. CN15/ USB U24/ EC/ KBC U22/ ID ROM CN16/ USB CN10/ RTC BAT U23/ BIOS ROM CN13/ MMB & VR Y5/ 32.768KHz PU3/ RAM PWR CN14/ BT conn.
Acer Aspire 8940 Service Guide
Page 219
... in the G3 power state), the RTCRST# input must always be high when all other RTC power planes are on. Open the Hard Drive and RAM doors. 3. This signal resets the manageablility register bits in the picture. • G2 is the RTC Reset. Use an electric conductivity tool to BIOS Setup... SRTCRST# input must always be high when all other RTC power planes are on the platform, the RTCRST# pin must rise before the RSMRST# pin. 6. Aspire 8940 provides one Hardware Open Gap on the platform, the SRTCRST# pin must rise before the RSMRST# pin. • G3 is the Secondary RTC Reset...
... in the G3 power state), the RTCRST# input must always be high when all other RTC power planes are on. Open the Hard Drive and RAM doors. 3. This signal resets the manageablility register bits in the picture. • G2 is the RTC Reset. Use an electric conductivity tool to BIOS Setup... SRTCRST# input must always be high when all other RTC power planes are on the platform, the RTCRST# pin must rise before the RSMRST# pin. 6. Aspire 8940 provides one Hardware Open Gap on the platform, the SRTCRST# pin must rise before the RSMRST# pin. • G3 is the Secondary RTC Reset...
Acer Aspire 8940 Service Guide
Page 231
MAINBOARD PM55 DIS W/CARD READER EXPRESS CARD W/O CPU RAM MB.PJJ06.001 Memory Thermal Module Memory MICRON SO-DIMM DDRIII 1066 2GB MT16JSF25664HY-1G1D1 LF 128*8 0.07um Memory ELPIDA SO-DIMM DDRIII 1066 2GB ....22700.011 40.PJJ07.001 47.PDA07.001 47.PDA07.002 47.PDA07.003 47.PDA07.004 47.PDA07.005 Chapter 6 221 Category Mainboard Description Acer PN.
MAINBOARD PM55 DIS W/CARD READER EXPRESS CARD W/O CPU RAM MB.PJJ06.001 Memory Thermal Module Memory MICRON SO-DIMM DDRIII 1066 2GB MT16JSF25664HY-1G1D1 LF 128*8 0.07um Memory ELPIDA SO-DIMM DDRIII 1066 2GB ....22700.011 40.PJJ07.001 47.PDA07.001 47.PDA07.002 47.PDA07.003 47.PDA07.004 47.PDA07.005 Chapter 6 221 Category Mainboard Description Acer PN.