Acer ASPIRE 553G, Service Manual

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26 Chapter 1
System Memory
* For Discrete models only
Item (SB Cont.) Features
*Power Management
ACPI specification 3.0 compliant power management schemes
Supports CPU C1e, C2, C3, C3 pop-up, C4, and C5 states
Supports system S0, S1, S3, S4, and S5 states
Wakeup events for S1, S3, S4, and S5 generated by:
Any GEVENT pin
Any GPM pin
USB
Power Button
Internal RTC wakeup
SMI event
Consumer IR
CPU SMM support, generating SMI message upon power management events
CLKRUN# support for PCI power management Provides clock generator and
CPU
vSTPCLK# control Supports hardware monitoring and fan control
ALPM (HIPM) on SATA
DIPM on SATA
*Consumer IR
Media center infrared with wake from all states
Two transmitters
IR receiver and wideband learning receiver
*Hardware Monitoring
Temperature monitoring
Monitor temperature range from 0 to 95‹C, with an accuracy of +/-5‹C
Voltage monitoring
Fan control
Supports up to 5 fans
Access to ACPI Features through
SMBus
ASFBus
GPIO
*Integrated Clock Function
Provides 25MHz, 14.318MHz, and 48MHz clocks
Provides CPU_HT and NB_HT clocks
Provides graphics, A-Link Express II, and nine general PCIe Rclocks
Item Specification
Memory size 0MB (No on-board Memory)
DIMM socket number 204-pin sockets
Supports memory size per socket 4GB
Supports maximum memory size 8GB or 12GB *
Supports DIMM type DDR3 SoDIMM
Supports DIMM Speed 400 MHz fCK for 800Mb/sec/pin, 533MHz fCK for 1066Mb/sec/pin.