HP EliteDesk 800 G3 Maintenance And Service Guide

7 POST error messages and diagnostic front
panel LEDs and audible codes
This appendix lists the error codes, error messages, and the various indicator light and audible sequences
that you may encounter during Power-On Self-Test (POST) or computer restart, the probable source of the
problem, and steps you can take to resolve the error condition.
POST Message Disabled suppresses most system messages during POST, such as memory count and non-
error text messages. If a POST error occurs, the screen will display the error message. To manually switch to
the POST Messages Enabled mode during POST, press any key (except F10, F11, or F12). The default mode is
POST Message Disabled.
The speed at which the computer loads the operating system and the extent to which it is tested are
determined by the POST mode selection.
Quick Boot is a fast startup process that does not run all of the system level tests, such as the memory test.
Full Boot runs all of the ROM-based system tests and takes longer to complete.
Full Boot may also be enabled to run every 1 to 30 days on a regularly scheduled basis. To establish the
schedule, recongure the computer to the Full Boot Every x Days mode, using Computer Setup.
NOTE: For more information on Computer Setup, see Computer Setup (F10) Utility on page 57.
POST numeric codes and text messages
This section covers those POST errors that have numeric codes associated with them. The section also
includes some text messages that may be encountered during POST.
NOTE: The computer will beep once after a POST text message is displayed on the screen.
Control panel message Description Recommended action
002-Option ROM Checksum Error System ROM or expansion board option ROM
checksum.
1. Verify the correct ROM.
2. Flash the ROM if needed.
3. If an expansion board was recently added,
remove it to see if the problem remains.
4. Clear CMOS. (See Password security and
resetting CMOS on page 104.)
5. If the message disappears, there may be a
problem with the expansion card.
6. Replace the system board.
003-System Board Failure DMA or timers. 1. Clear CMOS. (See Password security and
resetting CMOS on page 104.)
2. Remove expansion boards.
3. Replace the system board.
005-Real-Time Clock Power Loss Invalid time or date in conguration memory. Reset the date and time under Control Panel
(Computer Setup can also be used). If the
POST numeric codes and text messages 97

HP EliteDesk 800 G3 Specifications

General

Display included	No
Keyboard included	Yes
Operating system architecture	64-bit
Sustainability certificates	ENERGY STAR
Power supply	65 W
Product type	Mini PC
Motherboard chipset	Intel® Q270
Product color	Black, Silver
Country of origin	China
Number of 2.5\" bays	1
HDMI ports quantity	-
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.
VGA (D-Sub) ports quantity	0
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	6
Antenna type	2x2
Cabling technology	10/100/1000Base-T(X)
Top Wi-Fi standard	Wi-Fi 5 (802.11ac)
WLAN controller model	Intel Dual Band Wireless-AC 8265
Ethernet LAN data rates	10, 100, 1000 Mbit/s
SSD capacity	The Solid State Drive's storage capacity in Gigabytes.
SSD interface	NVMe, PCI Express
Storage media	SSD
Total storage capacity	256 GB
Memory slots	2x SO-DIMM
Internal memory	8 GB
Memory clock speed	2400 MHz
Internal memory type	DDR4-SDRAM
Maximum internal memory	32 GB
Memory layout (slots x size)	1 x 8 GB
Bus type	DMI3
Tjunction	80 °C
Processor cache	6 MB
Processor cores	4
Processor model	i5-7500T
System bus rate	8 GT/s
Processor family	Intel® Core™ i5
Processor socket	LGA 1151 (Socket H4)
Processor codename	Kaby Lake
Processor frequency	2.7 GHz
Processor cache type	Smart Cache
Processor lithography	14 nm
Processor manufacturer	Intel
PCI Express slots version	3.0
Processor boost frequency	3.3 GHz
PCI Express configurations	2x8, 1x8+2x4
Thermal Design Power (TDP)	35 W
Configurable TDP-down frequency	1.7 GHz
Maximum number of PCI Express lanes	16
Memory types supported by processor	DDR3L-SDRAM, DDR4-SDRAM
Memory voltage supported by processor	1.35 V
Memory clock speeds supported by processor	1333, 1600, 2133, 2400 MHz
Maximum internal memory supported by processor	64 GB
On-board graphics card ID	0x5912
Discrete graphics card model	Not available
On-board graphics card model	Intel® HD Graphics 630
On-board graphics card OpenGL version	4.4
On-board graphics card base frequency	350 MHz
On-board graphics card DirectX version	12.0
On-board graphics card dynamic frequency (max)	1100 MHz
Number of displays supported (on-board graphics)	3
HP segment	Business
Scalability	1S
Processor ARK ID	97121
Processor package size	37.5 x 37.5 mm
Supported instruction sets	AVX 2.0
Thermal solution specification	PCG 2015A
Intel Identity Protection Technology version	1.00

Weight and Dimensions

Depth	175 mm
Width	177 mm
Height	34.2 mm
Weight	1210 g