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Acer Aspire 7230 Service Guide

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Page 161

Chapter 4151
0x09 TCG log event failed DXE TCG
0x09 Setup event log failed DXE TCG
0x12 TIS set active locality failed DXE TCG
0x12 TIS relinquish active locality failed DXE TCG
0x12 TIS wait command ready failed (prepare to send) DXE TCG
0x12 TIS abort send command due to timeout DXE TCG
0x12 TIS abort sendAndGo command due to timeout DXE TCG
0x04 TIS wait bit set failed before send last byte DXE TCG
0x12 TIS abort command due to timeout before send last 
byteDXE TCG
0x04 TIS wait bit clear failed when...

Page 162

152Chapter 4
0x1A Initialize DMA command register with these settings: 
1. Memory to memory disabled 2. Channel 0 hold 
address disabled 3. Controller enabled 4. Normal 
timing 5. Fixed priority 6. Late write selection 7. 
DREQ sense active 8. DACK sense active low.LBT Core
0x22 Reset the keyboard. LBT Core
0x40 Test A20 line LBT Core
0x67 Quick initialization of all Application Processors in a 
multi-processor systemLBT Core
0x32 Compute CPU speed. LBT Core
0x69 Initialize the handler for SMM. LBT Core...

Page 163

Chapter 4153
0x4C Shadow video BIOS ROM if specified by Setup, and 
CMOS is valid and the previous boot was OK.LBT Core
0x59 Register POST Display Services, fonts, and 
languages with the POST Dispatch Manager.LBT Core
0x57 Initialize 1394 Firewire LBT Core
0xD6 Initialize PC card LBT Core
0x58 Test for unexpected interrupts. First do an STI for hot 
interrupts. Secondly, test the NMI for an unexpected 
interrupt. Thirdly, enable the parity checkers and 
read from memory, checking for an unexpected...

Page 164

154Chapter 4
0x6A Display external cache size on the screen if it is non-
zero.LBT Core
0x6C Display shadow message LBT Core
0xCA post EISA init LBT Core
0x70 Check flags in CMOS and in the TrustedCore data 
area for errors detected during POST. Display error 
messages on the screen.LBT Core
0x72 Check status bits to see if configuration problems 
were detected. If so, display error messages on the 
screen.LBT Core
0x4F Initialize MultiBoot. Allocate memory for old and new 
MultiBoot history tables.LBT...

Page 165

Chapter 4155
0x8B Setup interrupt vector and present bit in Equipment 
byte.LBT Core
0x95 1. Check CMOS for CD-ROM drive present 2. 
Activate the drive by checking for media present 3. 
Check sector 11h (17) for Boot Record Volume 
Descriptor 4. Check the boot catalog for validity 5. 
Pick a boot entry 6. Create a Specification PacketLBT Core
0x92 Jump to UserPatch2. LBT Core
0xB6 If password on boot is enabled, a call is made to 
Setup to check password. If the user does not enter 
a valid password,...

Page 166

156Chapter 4
0xB5 Fade out OEM Logo or post string LBT Core
0xC5 End hotkey detection (Server BIOS) LBT Core
0xBE If BCP option is enabled, clear the screen before 
booting.LBT Core
0xB6 If password on boot is enabled, a call is made to 
Setup to check password. If the user does not enter 
a valid password, Setup does not return.LBT Core
0xBC Clear parity-error latch LBT Core
0xB7 Initialize ACPI BIOS. LBT Core
0x9B Enable CPU management (Geyserville I) LBT Core
0xBD Display Boot First menu if MultiBoot...

Page 167

Chapter 5157
Jumper and Connector Locations
Top View
No.JumperDescriptionNo.JumperDescription
1 CN5 MODEM CONN.  10 LED2 BATTERY LED
2 CN7 FINGER CONN. 11 LED1 SYSTEM LED
3 CN6 TOUCH PAD CONN. 12 U1 TRANSFORMER
4 CN8 NEW CARD CONN. 13 U2 LAN CHIP
5 CN10 BLUE TOOTH CONN. 14 CH1 LCD CONN.
6 U17 CARD READER CHIP 15 CN3 SWITCH BOARD CONN.
7 U12 EC WINBOND 16 CN2 POWER BOARD CONN.
8 U14 BIOS 17 CN4 KEYBOARD CONN.
9 U13 AUDIO CHIP
Chapter 5 

Page 168

158Chapter 5
Bottom View
No.JumperDescriptionNo.JumperDescription
1 PJ1 DC JACK 15 CN30 SUBWOOFER CONN.
2 CN11 RJ5 CONN. 16 U34 CIR
3 CN12 DOCKING CONN. 17 CN28 2nd HDD CONN.
4 CN14 FAN CONN. 18 CN33 MINI CARD
5 CN15 CRT CONN. 19 VR1 VOLUME WHEEL
6 CN16 MXM CONN. 20 CN31 CARD READER
7 CN17 HDMI CONN. 21 CN26 1st HDD CONN.
8 CN18 USB CONN. 22 CN19 ODD CONN.
9 CN20 USB CONN. 23 J1 SODIMM CONN.
10 CN29 S/PDIF JACK 24 PCN1 BATTERY CONN.
11 CN25 MIC CONN. 25 T90 CPU SOCKET
12 CN23 LINE-IN CONN. 26 CN13 RTC...

Page 169

Chapter 5159
Clearing Password Check and BIOS Recovery
This section provide you the standard operating procedures of clearing password and BIOS recovery for 
Aspire 7230/7530/7530G. Aspire 7230/7530/7530G provide 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,...

Page 170

160Chapter 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...
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