Acer Extensa 610 Service Guide

System Introduction1-13Table 1-4CPU Voltage (S1) SettingsCPU Voltage2.35V2.45V2.9V3.1VSwitch 1OffOffOffOffSwitch 2OffOnOffOffSwitch 3OnOffOffOffSwitch 4OffOffOffOnTable 1-5CPU Speed (SW3) SettingsCPU Speed120MHz133MHz150MHzSwitch 1OffOnOffSwitch 2OnOffOnSwitch 3OffOffOnSwitch 4OnOnOnTable 1-6Multi-Function Switch (SW2) SettingsSwitchONOFF1Keyboard Type (Default OFF)--2Keyboard Type88-key (Japan keyboard)84/85-key (U.S. keyboard)3PasswordBypassCheck4Generic boot-up screen show on screen inPOSTNoYes 

1-14Service Guide1.4Hardware Configuration and Specification
1.4.1Memory Address Map
Table 1-7Memory Address MapAddress RangeDefinitionFunction000000 - 09FFFF640 KB memoryBase memory0A0000 - 0BFFFF128 KB video RAMReserved for graphics display buffer0C0000 - 0CBFFFVideo BIOSVideo BIOS0E0000 - 0EFFFF
0F0000 - 0FFFFF128 KB system BIOSSystem BIOS
System BIOS10000 - 7FFFF
80000 - 27FFFExtended memoryOnboard Memory
SIMM memoryFE0000 - FFFFFF256 KB system ROMDuplicate of code assignment at...

System Introduction1-151
1
1
2
2
2
21
2
3
4
5
6
70083
0081
0082
Cascade
008B
0089
008AAudio
Diskette
Audio (option)/ECP(option)
Cascade
-
Spare
-1.4.4I/O Address Map
Table 1-10I/O Address MapAddress RangeDevice000 - 00F
020 - 021
040 - 043
048 - 04B
060 - 064
070 - 071
080 - 08F
0A0 - 0A1
0C0 - 0DF
170 - 177
178, 17A
1F0 - 1F7
3F6, 3F7
220 - 22F, 240 - 24F
300 - 301, 330 - 331
370 - 371, 388 - 38F
530 - 537, E80 - E89
278 - 27F
2E8 - 2EF
2F8 - 2FF
378, 37A
3BC - 3BE
3B4, 3B5, 3BA
3C0 - 3C5
3C6 - 3C9
3C0...

1-16Service Guide1.4.5M7101 GPIO (General Purpose I/O) Port Definition
Table 1-11M7101 GPIO Port DefinitionItemDescriptionGPIOA2Smart inverter contrast counter controlGPIOA30: Normal operation of system
1: Shutdown systemGPIOA4Serial data on X24C02GPIOA5Battery gauge communication controlGPIOA6Battery data lineGPIOA7Thermal sensor data lineGPIOC6VGA thermal sensor data lineGPIOC70: VGA  chip standby mode
1: Normal operationRegister E0h bit 8Serial clock on X24C02Register E0h bit 90: Disable 12V for flash...

System Introduction1-17ItemSpecificationBIOS vendorAcerBIOS versionv2.1BIOS in flash EPROM (Y/N)YesBIOS ROM size256KBBIOS package type32-pin TSOPSame BIOS for STN color/TFT color (Y/N)YesThe BIOS can be overwritten/upgradeable using the “AFLASH” utility (AFLASH.EXE).
Please refer to software specification section for details.
1.4.8System Memory
Memory is upgradeable from 8 to 64 MB, employing 8-/16-/32-MB 64-bit soDIMMs (Small Outline Dual
Inline Memory Modules).  After installing the memory modules, the...

1-18Service GuideThe following table lists all possible memory configurations.
Table 1-14Memory ConfigurationsSlot 1Slot 2Total Memory8 MB0 MB8 MB0 MB8 MB8 MB8 MB8 MB16 MB16 MB0 MB16 MB0 MB16 MB16 MB16 MB8 MB24 MB8 MB16 MB24 MB16 MB16 MB32 MB32 MB0 MB32 MB0 MB32 MB32 MB32 MB8 MB40 MB8 MB32 MB40 MB32 MB16 MB48 MB16 MB32 MB48 MB32 MB32 MB64 MB1.4.9Second-Level Cache
This notebook supports  256KB pipeline burst second-level (L2) cache. 

System Introduction1-191.4.10Video Memory
Table 1-15Video RAM ConfigurationItemSpecificationDRAM or VRAMDRAM(EDO type)Fixed or upgradeableFixedMemory size/configuration1MB (256K x 16 x 2pcs)Memory speed60nsMemory voltage3.3VMemory packageTSOP1.4.11Video
Table 1-16Video Hardware SpecificationItemSpecificationVideo chipC&T65550BWorking voltageC&T65550B: 3.3V
C&T65550XX: 3.3V/5V (“XX” represents codes other than “A” (i.e. “B1”))Video Chip substitutabilityYes
During power-on, system supplies 5V to video chip...

1-20Service Guide1280x1024x1686I60YY1.4.11.2LCD Resolution Support
Table 1-18Supported LCD ResolutionsResolution x Color on LCD OnlyTFT LCD (SVGA)STN LCD (SVGA)640x480x16YY640x480x256YY640x480x65,536YY640x480x16,777,216Y-800x600x16YY800x600x256YY800x600x65,536Y-1024x768x16YY1024x768x256YY· DSTN color number:  256 colors
· TFT color number:  65536 colors
· Maximum resolution (LCD Panel): 800x600
· Maximum resolution (External CRT): 1280x1024Using software, you can set the LCD to a higher resolution than...

System Introduction1-211.4.12Parallel Port
Table 1-19Parallel Port ConfigurationsItemSpecificationNumber of parallel ports1ECP/EPP supportYes (set by BIOS setup)Connector type25-pin D-typeLocationRear sideSelectable parallel port (by BIOS Setup)· Parallel 1 (3BCh, IRQ7)
· Parallel 2 (378h, IRQ7)
· Parallel 3 (278h, IRQ5)
· Disable1.4.13Serial Port
Table 1-20Serial Port ConfigurationsItemSpecificationNumber of serial ports116550 UART supportYesConnector type9-pin D-typeLocationRear sideSelectable serial...

1-22Service Guide1.4.14Audio
Table 1-21Audio SpecificationsItemSpecificationChipsetYMF715Audio onboard or optionalBuilt-inMono or stereoStereoResolution16-bitCompatibilitySB-16 , Windows Sound SystemMixed sound sourcesVoice, Synthesizer, Line-in, Microphone, CDVoice channel8-/16-bit, mono/stereoSampling rate44.1 kHzInternal microphoneNoInternal speaker / quantityYes / 2 pcs.Microphone jackYesHeadphone jackYes1.4.15PCMCIA
PCMCIA is an acronym for Personal Computer Memory Card International Association....