HP ProDesk 490 G1 User Manual

Resetting the password jumper
CAUTION: If you enable the stringent security feature in Computer Setup and you forget the setup
password or the power-on password, the computer is inaccessible and can no longer be used.
Enabling the stringent password disables the ability to reset the password by moving the jumper on the
system board.
If you lose or forget the password, the system board must be replaced. This scenario is not covered
under warranty.
To prevent the computer from becoming permanently unusable, record your configured setup password
or power-on password in a safe place away from your computer. Without these passwords, the
computer cannot be unlocked.
To disable the power-on or setup password features, or to clear the power-on or setup passwords,
complete the following steps:
1. Shut down the operating system properly, then turn off the computer and any external devices,
and disconnect the power cord from the power outlet.
2. With the power cord disconnected, press the power button again to drain the system of any
residual power.
WARNING! To reduce the risk of personal injury from electrical shock and/or hot surfaces, be
sure to disconnect the power cord from the wall outlet, and allow the internal system components
to cool before touching.
CAUTION: When the computer is plugged in, the power supply always has voltage applied to
the system board even when the unit is turned off. Failure to disconnect the power cord can result
in damage to the system.
Static electricity can damage the electronic components of the computer or optional equipment.
Before beginning these procedures, ensure that you are discharged of static electricity by briefly
touching a grounded metal object. See the Safety & Regulatory Information guide for more
information.
3. Remove the access panel.
4. Locate the header and jumper.
NOTE: The password jumper is green so that it can be easily identified. For assistance locating
the password jumper and other system board components, see the Illustrated Parts & Service Map
(IPSM). The IPSM can be downloaded from
http://www.hp.com/support.
5. Remove the jumper from pins 1 and 2. Place the jumper on either pin 1 or 2, but not both, so that
it does not get lost.
6. Replace the computer cover or access panel.
7. Reconnect the external equipment.
204 Chapter 10 Password security and resetting CMOS

HP ProDesk 490 G1 Specifications

General

Tcase	72.72 °C
Bus type	DMI2
Stepping	C0
Processor cache	8 MB
Processor cores	4
System bus rate	5 GT/s
Processor family	Intel® Core™ i7
Processor series	Intel Core i7-4700 Desktop series
Processor socket	LGA 1150 (Socket H3)
Processor threads	8
Processor codename	Haswell
Processor frequency	3.4 GHz
Processor cache type	Smart Cache
Processor lithography	22 nm
Processor manufacturer	Intel
Processor front side bus	- MHz
PCI Express slots version	3.0
Processor boost frequency	3.9 GHz
Processor operating modes	64-bit
ECC supported by processor	No
PCI Express configurations	1x16, 2x8, 1x8+2x4
Thermal Design Power (TDP)	84 W
Number of processors installed	1
Maximum number of PCI Express lanes	16
Memory types supported by processor	DDR3-SDRAM
Memory voltage supported by processor	1.5 V
Memory clock speeds supported by processor	1333, 1600 MHz
Memory bandwidth supported by processor (max)	25.6 GB/s
Maximum internal memory supported by processor	32 GB
Memory slots	4x DIMM
Internal memory	16 GB
Memory channels	Dual-channel
Memory clock speed	1600 MHz
Maximum internal memory	- GB
HDD size	3.5 \
HDD speed	7200 RPM
HDD interface	SATA
Storage media	HDD
Optical drive type	DVD Super Multi
Card reader integrated	Yes
Total storage capacity	1000 GB
Intel segment tagging	Enterprise, Small Business
Intel® Virtualization Technology (Intel® VT)	VT-d, VT-x
On-board graphics card ID	0x412
Discrete graphics card model	NVIDIA® GeForce® GT 630
On-board graphics card model	Intel® HD Graphics 4600
Discrete graphics card memory	2048 GB
Discrete graphics memory type	GDDR3
On-board graphics card family	Intel® HD Graphics
Maximum on-board graphics card memory	2 GB
On-board graphics card OpenGL version	4.3
On-board graphics card base frequency	350 MHz
On-board graphics card DirectX version	11.2/12
On-board graphics card dynamic frequency (max)	1200 MHz
Number of displays supported (on-board graphics)	3
Bundled software	HP Client Security\\r HP Trust Circles Standard\\r HP Wireless HotSpot\\r HP PageLift\\r HP Recovery Manager\\r HP Support Assistant\\r HP ePrint\\r CyberLink PowerDVD\\r CyberLink Power2Go\\r Buy Office
Recovery operating system	Windows 8.1 Pro
Operating system installed	Windows 7 Professional
Cabling technology	10/100/1000Base-T(X)
Ethernet LAN data rates	10, 100, 1000 Mbit/s
HDMI ports quantity	0
PS/2 ports quantity	2
USB 2.0 ports quantity	6
Chassis type	Micro Tower
Product color	Black
Country of origin	China
Audio system	Realtek ALC221
Product type	PC
Motherboard chipset	Intel® H87
Scalability	1S
Processor code	SR149
Processor ARK ID	75122
Intel TSX-NI version	0.00
Processor package size	37.5 x 37.5 mm
Supported instruction sets	AVX 2.0, SSE4.1, SSE4.2
Thermal solution specification	PCG 2013D
Intel Identity Protection Technology version	1.00
Power supply	300 W
Sustainability certificates	ENERGY STAR

Weight and Dimensions

Depth	402 mm
Width	182.8 mm
Height	357 mm
Weight	7140 g