Acer Aspire 5538 Service Guide
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171Chapter 4 DLL Timing Control Registers, RCOMP settings Post CodeDescription 0x27 Enable DRAM Channel I/O Buffers 0x28 Enable all clocks on populated rows 0x29 Perform JEDEC memory initialization for all memory rows 0x30 Perform steps required after memory init 0x31 Program DRAM throttling and throttling event registers 0x32 Setup DRAM control register for normal operation and enable 0x33 Enable RCOMP 0x34 Clear DRAM initialization bit in the SB 0x35 Initialization Sequence Completed, program graphic clocks 0x43 Program Thermal Throttling
Chapter 4172 BDS & Specific action: Each PEIM entry point used in 80_PORT Post CodeDescription 0x00 Report the legacy boot is happening 0x12 Wake up the Aps 0x13 Initialize SMM Private Data and relocate BSP SMBASE 0x21 PC init begin at the stage1 0x27 Report every memory range do the hard ware ECC init 0x28 Report status code of every memory range 0x50 Get the root bridge handle 0x51 Notify pci bus driver starts to program the resource 0x58 Reset the host controller 0x5A IdeBus begin initialization 0x79 Report that the remote terminal is being disabled 0x7A Report that the remote terminal is being enabled 0x90 Keyboard reset 0x91 USB Keyboard disable 0x92 Keyboard detection 0x93 Report that the usb keyboard is being enabled 0x94 Clear the keyboard buffer 0x95 Init Keyboard 0x98 Mouse reset 0x99 Mouse disable 0x9A Detect PS2 mouse 0x9B Report that the mouse is being enabled 0xB8 Peripheral removable media reset(ex:IsaFloppy, USB device) 0xB9 Peripheral removable media disable 0xBB Peripheral removable media enable 0xE4 Report Status Code here for DXE_ENTRY_POINT once it is available 0xF8 Report that ExitBootServices() has been called 0xF9 Runtime driver set virtual address map Post CodeDescription 0x00 0x01 PEI_EVENT_LOG 0xA1 PEI_OEM_SERVICE 0xA2 PEI_SIO_INIT 0xA3 PEI_MONO_STATUS_CODE 0xA4 PEI_CPU_IO_PCI_CFG 0x06 PEI_CPU_IO 0x07 PEI_PCI_CFG 0xA5 PEI_CPU_PEIM 0xA6 PEI_PLATFORM_STAGE1 0xA7 PEI_VARIABLE
173Chapter 4 Each Driver entry point used in 80_PORT0xA8 PEI_SB_INIT 0x0C PEI_CAPSULE 0xAA PEI_PLATFORM_STAGE2 0xAC PEI_SB_SMBUS_ARP_DISABLED 0x0F PEI_HOST_TO_SYSTEM 0x40 PEI_MEMORY_INIT 0x41 PEI_S3_RESUME 0xAD PEI_CLOCK_GEN 0xAB PEI_OP_PRESENCE 0xAE PEI_FIND_FV 0x16 PEI_H2O_DEBUG_IO 0x17 PEI_H2O_DEBUG_COMM 0x16~0x1F PEI_RESERVED 0x20~0x2E PEI_OEM_DEFINED 0xAF PEI_DXE_IPL Post CodeDescription 0x30 RESERVED 0xB6 DXE_CRC32_SECTION_EXTRACT 0xB8 SCRIPT_SAVE 0xB9 ACPI_S3_SAVE 0xBA SMART_TIMER 0xBB JPEG_DECODER 0xBC PCX_DECODER 0xBE HT_CPU / MP_CPU 0xBF LEGACY_METRONOME 0xC0 FTWLITE 0xC1 RUN_RIME 0xC2 MONOTONIC_COUNTER 0xC3 WATCH_DOG_TIMER 0xC4 SECURITY_STUB 0xC5 DXE_CPU_IO 0xC6 CF9_RESET 0xC7 PC_RTC 0xC8 STATUS_CODE 0xC9 VARIABLE EMU_VARIABLE 0xD9 DXE_CHIPSET_INIT 0x45 DXE_ALERT_FORMAT 0xD6 PCI_HOST_BRIDGE 0xD7 PCI_EXPRESS 0xD5 DXE_SB_INIT 0xDA IDE_CONTROLLER Post CodeDescription
Chapter 4174 0xDB SATA_CONTROLLER 0xDD SB_SM_BUS 0xE7 ISA_ACPI_DRIVER 0xE8 ISA_BUS 0xE9 ISA_SERIAL 0xED BUS_PCI_UNDI 0xEC PCI_BUS 0xF6 BOOT_PRIORITY 0xF7 FVB_SERVICE 0xF8 ACPI_PLATFORM 0xFB PCI_HOT_PLUG 0xFC DXE_PLATFORM 0xFD PLATFORM_IDE 0x97 SMBIOS 0x98 MEMORY_SUB_CLASS 0x99 MISC_SUB_CLASS 0x82 CON_PLATFORM 0x83 SAVE_MEMORY_CONFIG 0x84 ACPI_SUPPORT 0x85 CON_SPLITTER_UGA_VGA / CON_SPLITTER 0x88 VGA_CLASS 0x89 DATA_HUB 0x60 DISK_IO 0x8B MEMORY_TEST 0x62 CRISIS_RECOVERY 0x8D LEGACY_8259 0x8E LEGACY_REGION 0x8F LEGACY_INTERRUPT 0x70 BIOS_KEYBOARD 0x71 BIOS_VEDIO 0x72 MONITER_KEY 0x73 LEGACY_BIOS 0x75 LEGACY_BIOS_PLATFORM 0x76 PCI_PLATFORM 0x6C ISA_FLOOPY 0x6D PS2_MOUSE 0x6E USB_BOT 0x6F USB_CBI0 0x74 USB_MOUSE 0xFA SETUP_UTILITY 0x90 FW_BLOCK_SERVICE 0x78 SMM_USB_LEGACY 0x86 GRAPHICS_CONSOLE Post CodeDescription
175Chapter 4 Each SmmDriver entry point used in 80_PORT0x87 TERMINAL 0x8A DATA_HUB_STD_ERR 0x7C FAT 0x7D PARTITION 0x7E ENGLISH 0x7F FRENCH 0x9E HII_DATABASE 0x9F OEM_SETUP_BROWSER 0x8C OEM_BADGING_SUPPORT 0xF9 SETUP_MOUSE 0x72 MONITOR_KEY 0xBD PLATFORM_BDS 0x8D RESERVED 0x8E RESERVED 0x8F RESERVED 0xA0 DXE_H2O_DEBUG_IO 0xB3 DXE_TPM_TCG 0xB4 DXE_TPM_PHYSICAL_PRESENCE 0xB7 DXE_OEM_SERVICE 0x9B DXE_ SECURITY_HDD_PASSWORD_SERVICE 0xA9 DXE_LAN_IDER_CONTROLLER 0x9C DXE_ SECURITY_SYSTEM_PASSWORD_SERVICE 0x9D DXE_ SECURITY_ PASSWORD_CONSOLE 0xCB DXE_ DATA_HUB_RECORD_POLICY 0xB5 DXE_TPM_DRIVER 0x11 CHINESE 0xB0 JAPANESE 0xB1 DXE_UNICODE_COLLACTION Post CodeDescription 0xD4 SMM_ACCESS 0xDE SMM_CONTROL 0xCC SMM_BASE 0xD2 SMM_RUNTIME 0xDF SB_SMM_DISPATCH 0xD0 SMM_THUNK 0xCA SMM_ACPI_SW_CHILD 0xFE SMM_PLATFORM 0xD8 SMM_GMCH_MBI 0x90 SMM_FW_BLOCK_SERVICE 0x91 SMM_VARIABLE Post CodeDescription
Chapter 4176 0x92 SMM_IHISI 0x93 SMM_INT15_MICROCODE 0x94 SMM_PNP 0x95 SMM_INIT_PPM 0xD3 SMM_OEM_SERVICE Post CodeDescription
Chapter 5177 Jumper and Connector Locations Top View ITEMDESCRIPTIONITEMDESCRIPTION JP2 Connect to IO/B (FFC) U61 Side-port memory (for UMA) JP3 Connect to CAP/B (FFC) U65 / U68 VRAM (for DIS) JP4 Connect to Bluetooth (Cable) LED9 LED10 LED11 LED12Battery Charging Indicator LED10 / LED12 AMB LED9 / LED11?Blue JP7 Connect to Touch pad (FFC) JP8 Connect to Keyboard JP9 Connect to Power BTN board (FFC)JP21 Connect to IO/B (Cable) JP19 Connect to Digital MIC PBJ1 RTC battery JP20 Connect to speaker Chapter 5
178Chapter 5 Bottom View ITEMDESCRIPTIONITEMDESCRIPTION PJP1 Connect to Battery JREAD1 Card reader PJP2 DC-IN jack JCRT1 CRT Connector JDIM1 / JDIM2DDR2 Memory socket JHDMI1 HDMI Connector JLVDS1 Connect to LED Panel JP13 FAN Connector JSATA1 Connect to SATA ODD JSATA2 Connect to SATA HDD JCPU1 CPU socket JMINI1 Connect to WLAN U3 NB JMINI2 Reserved U14 SB JUSB1 / JUSB2USB Connector U64 M92-S2LP VGA JMIC1 Connect to external microphone U66 / U67 VRAM (for DIS) JHP1 Connect to external SPDIF
Chapter 5179 Clearing Password Check and BIOS Recovery This section provide you the standard operating procedures of clearing password and BIOS recovery for Aspire 5538. Aspire 5538 provides one Hardware Open Gap on main board for clearing password check, and one Hotkey for enabling BIOS Recovery. Clearing Password Check Hardware Open Gap Description Steps for Clearing BIOS Password Check If users set BIOS Password (Supervisor Password and/or User Password) for a security reason, BIOS will ask the password during systems POST or when systems enter to BIOS Setup menu. However, once it is necessary to bypass the password check, users need to short the HW Gap to clear the password by the following steps: 1.Flash to BIOS v1.04 (or later version), and enter BIOS Setup Utility. 2.Set the Supervisor password, User Password, and power on password. Press F10, and save and exit. After the Save, the notebook auto re-starts. 3.After power-on, the system prompts to input the password. Enter the password set in step 1 and allow the device to startup. 4.Press and hold the power key to shutdown the system. 5.Open the memory door and remove the memory modules. 6.Remove the battery pack and AC adapter. 7.Short the R72 Pins shown above (ensure that the circuit is complete). 8.Replace the memory modules and close memory door. 9.Replace the battery pack and power on the system. 10.Press F2 at the prompt to enter BIOS. Check the Security screen shows Supervisor and User Passwords are clear. ItemDescriptionLocation R397 Clear CMOS Jumper Memory Bay
180Chapter 5 BIOS Recovery by Crisis Disk BIOS Recovery Boot Block: BIOS Recovery Boot Block is a special block of BIOS. It is used to boot up the system with minimum BIOS initialization. Users can enable this feature to restore the BIOS firmware to a successful one once the previous BIOS flashing process failed. BIOS Recovery Hotkey: The system provides a function hotkey: Fn+Esc, for enable BIOS Recovery process when system is powered on during BIOS POST. To use this function, it is strongly recommended to have the AC adapter and Battery present. If this function is enabled, the system will force the BIOS to enter a special BIOS block, called Boot Block. Steps for BIOS Recovery from USB Storage: Before doing this, prepare the Crisis USB key. The Crisis USB key could be made by executing the Crisis Disk program in another system with Windows XP OS. Follow the steps below: 1.Save ROM file (file name: JAL90x64.fd) to the root directory of USB storage. 2.Plug USB storage into USB port. 3.Press Fn + ESC button then plug in AC. The Power button flashes once. 4.Press Power button to initiate system CRISIS mode. When CRISIS is complete, the system auto restarts with a workable BIOS. 5.Update the latest version BIOS for this machine by regular BIOS flashing process.