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38 Chapter 1
Hardware Specifications and Configurations
NOTE: Stage 1-4 is normal situation. Stage 5 is protection while the CPU is at extremely high temperature or
at critical situation. DTS refers to the CPU’s temperature; and Local means the temperature of the IC on
the main board.
Processor
Item Specification
CPU type
Intel
®
Core
TM
Duo processor T2300/T2400/T2500/T2600 (2 MB L2 cache,
1.66/1.83/2/2.16 GHz, 667 MHz FSB) for Aspire 5550
Intel
®
Celeron
®
M Processor 410/420/430 (1MB L2 cache, 1.46/1.60/1.73
GHz, 533 MHz FSB) or higher for Aspire 3670
Core logic Intel 945GM/PM+ICH7M (for Aspire 5550)
Intel 940GML+ICH7M (for Aspire 3670)
CPU package Intel socketable 478pin Micro-BGA
CPU core voltage 0.944~1.3V
CPU Fan True Value Table
Stage DTS(degree C) Local Fan Speed (rpm) Acoustic Level (dBA)
Stage 1 50 56 2800 29
Stage 2 60 60 3200 32
Stage 3 70 65 3600 35
Stage 4 82 70 4000 38
Stage 5 93 77 4300 40
BIOS
Item Specification
BIOS vendor Phneoix
BIOS Version V1.05 (MP version)
BIOS ROM type Flash ROM
BIOS ROM size 512KB Flash BIOS
BIOS package 32-pin PLCC
Supported protocols ACPI 1.0b/2.0/3.0 compliance, PCI2.2, System/HDD Password Security
Control, INT 13h Extensions, PnP BIOS 1.0a, PC Card 95(PCMCIA 3.0
Compliant Device), SM BIOS 2.4, BIOS Boot Specification, Simple Boot
Flag 1.0, Boot Block, PCI Bus Power Management Interface Specification,
USB 1.1/2.0, IEEE1394 1.0, USB/1394 CD-ROM Boot Up support, IrDA
1.0, HD Audio, WfM 2.0, PXE 2.1, BIS 1.0, PC99a and Mobile PC2001
Compliant, Intel Enhanced SpeedStep Technology, DMI 2.0, PS/2
keyboard and mouse
BIOS password control Set by setup manual
Second Level Cache
Item Specification
Cache controller Built-in CPU
Cache size
2MB for Intel
®
Core
TM
Duo processor
1MB for Intel
®
Celeron
®
M Processor
1st level cache control Always enabled
2st level cache control Always enabled
Cache scheme control Fixed in write-back