Acer Aspire 7720 User Manual

76 Chapter 4
Power-On Self-Test (POST) Error Message
The POST error message index lists the error message and their possible causes. The most likely cause is
listed first.
NOTE: Perform the FRU replacement or actions in the sequence shown in FRU/Action column, if the FRU
replacement does not solve the problem, put the original part back in the computer. Do not replace a
non-defective FRU.
This index can also help you determine the next possible FRU to be replaced when servicing a computer.
If the symptom is not listed, see “Undetermined Problems” on page 88.
The following lists the error messages that the BIOS displays on the screen and the error symptoms classified
by function.
NOTE: Most of the error messages occur during POST. Some of them display information about a hardware
device, e.g., the amount of memory installed. Others may indicate a problem with a device, such as the
way it has been configured.
NOTE: If the system fails after you make changes in the BIOS Setup Utility menus, reset the computer, enter
Setup and install Setup defaults or correct the error.

Acer Aspire 7720 Specifications

General

Stepping	M0
Tjunction	85 °C
Processor cache	2 MB
Processor cores	2
Processor model	T5750
System bus rate	- GT/s
Processor family	Intel® Core™2 Duo
Processor series	Intel Core 2 Duo T5000 Series
Processor socket	mPGA4
Processing Die size	143 mm²
Processor frequency	2 GHz
Processor cache type	L2
Processor lithography	65 nm
Processor manufacturer	Intel
Processor front side bus	667 MHz
Processor operating modes	64-bit
Thermal Design Power (TDP)	35 W
Number of Processing Die Transistors	291 M
HDD speed	5400 RPM
HDD interface	SATA
Card reader integrated	Yes
Total storage capacity	250 GB
Compatible memory cards	MMC, MS PRO, SD, xD
Display surface	Matt
Display diagonal	17 \
Display brightness	200 cd/m²
Display resolution	1440 x 900 pixels
Native aspect ratio	16:10
TV-in port	No
Modem speed	56 Kbit/s
Wireless technology	IEEE 802.11a/g/n
Memory slots	2x SO-DIMM
Internal memory	4 GB
Internal memory type	DDR2-SDRAM
Memory layout (slots x size)	2 x 2 GB
Discrete graphics card model	Intel® GMA X3100
Maximum graphics card memory	0.358 GB
Audio system	High Definition Audio
Front camera resolution (numeric)	0.3 MP
Networking features	Gigabit Ethernet
Operating system installed	Windows Vista Home Premium
TV-out type	S-Video
Charging port type	DC-in jack
Serial ports quantity	0
USB 2.0 ports quantity	4
Cable lock slot type	Kensington
Password protection type	BIOS
Battery life (max)	3.5 h
Number of battery cells	8
Pointing device	Touchpad
Processor code	SLA4D
Processor ARK ID	33915
Processor package size	35 x 35 mm

Weight and Dimensions

Depth	298 mm
Width	404 mm
Weight	3620 g
Height (rear)	43 mm
Height (front)	38 mm