HP 355 G2 Maintenance And Service Guide

Questions and answers
1. How can the BIOS settings be restored (returned to default settings)?
a. Turn on or restart the computer and press F10 when prompted near the bottom of the display.
b. Select File, then select Restore defaults.
c. Follow the on-screen instructions.
d. Select File, save changes and exit, then press Enter.
2. What kind of configuration data is stored on the DIMM Serial Presence Detect
(SPD) memory module? How would this data be written?
The DIMM SPD memory contains information about the memory module such as size, serial
number, data width, speed/timing, voltage and thermal information. This information is written by
the module manufacturer and stored on an EEPROM. This EEPROM cannot be written to when the
memory module is installed in a PC. Third party tools do exist that can write to the EEPROM when
the memory module is not installed in a PC. There are various third party tools available to read
SPD memory.
3. Does the “Firmware Hub for System BIOS” contain the BIOS program? Is this chip
writable, and if so how?
The Firmware Hub does contain the BIOS program and is writable. A utility is required to perform
the write function.
4. In some PC systems, the Firmware Hub for System BIOS is a flash memory chip
so that updates can be written by the customer. Is this true for these BIOS chips?
Yes, they are flash memory chips.
5. What is meant by “Restore the nonvolatile memory found in Intel-based
system boards?”
This relates to clearing the Real Time Clock (RTC) CMOS memory that contains PC
configuration data.
6. Does resetting the CMOS configuration memory return the PC back to
factory defaults?
The process of resetting the CMOS will return certain system settings to factory default but will not
reset many of the system data and configuration defaults to their default settings. To return these
system data and configuration defaults to default settings, refer to question and answer 1 and
follow the instructions for returning the BIOS settings to factory defaults.
Questions and answers
143

HP 355 G2 Specifications

General

Form factor	Clamshell
Product type	Laptop
Product color	Black, Silver
Country of origin	China
Processor cache	2 MB
Processor cores	4
Processor family	AMD A4
Processor frequency	1.8 GHz
Processor cache type	L2
Processor manufacturer	AMD
Motherboard chipset	-
Memory slots	2x SO-DIMM
Internal memory	4 GB
Memory clock speed	1600 MHz
Internal memory type	DDR3L-SDRAM
Maximum internal memory	- GB
Memory layout (slots x size)	1 x 4 GB
HDD speed	5400 RPM
HDD interface	SATA
Storage media	HDD
Optical drive type	DVD Super Multi DL
Card reader integrated	Yes
Total storage capacity	500 GB
Number of HDDs installed	1
Display diagonal	15.6 \
Display resolution	1366 x 768 pixels
Native aspect ratio	16:9
Discrete graphics card model	AMD Radeon R5 M240
Discrete graphics card memory	2 GB
Discrete graphics memory type	GDDR3
Audio system	DTS Sound+
Number of built-in speakers	2
Wi-Fi standards	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Bluetooth version	4.0
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Charging port type	DC-in jack
DisplayPorts quantity	0
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Pointing device	Touchpad
Operating system installed	FreeDOS
Battery capacity	41 Wh
Battery life (max)	- h
AC adapter power	65 W

Weight and Dimensions

Depth	384 mm
Width	261 mm
Height	23.1 mm
Weight	2300 g