HP Z240 User Manual

Troubleshooting scenarios and solutions
This section presents troubleshooting scenarios and possible solutions for a Windows-based system.
Solving minor problems
Problem Cause Possible Solution
Workstation appears frozen and
does not shut down when the
power button is pressed.
Software control of the power
switch is not functional.
1. Press and hold the power button for at least four seconds
until the computer shuts down.
2. Disconnect the electrical plug from the outlet.
3. Restart the computer.
Workstation seems to be frozen. Program in use has stopped
responding to commands.
1. If possible, use the Windows Task Manager to isolate and
terminate the oending process.
2. Attempt the normal Windows shutdown procedure.
3. Restart the computer using the power button.
Workstation date and time
display is incorrect.
Real-time clock (RTC) battery might
need replacement.
1. Reset the date and time in the Control Panel.
2. Replace the RTC battery.
Workstation appears to pause
periodically.
Network driver is loaded and no
network connection is established.
Establish a network connection, or use Computer Setup (F10)
Utility or Microsoft Windows Device Manager to disable the
network controller.
Cursor does not move using the
arrow keys on the keypad.
num lock is on. Press num lock. The num lock key can be disabled or enabled in
Computer Setup (F10) Utility.
Poor performance is
experienced.
Processor is hot. 1. Verify that airow to the computer is not blocked.
2. Verify that chassis fans are connected and working
properly. Some fans operate only when needed.
3. Verify that the processor heatsink is installed properly.
Hard drive is full. Transfer data from the hard drive to create more space on the
hard drive.
Workstation powered o
automatically and the Power
LED ashes red 2 times (once
every second), followed by a 2-
second pause, and then two
simultaneous beeps sounded.
Processor thermal protection is
activated.
A fan might be blocked or not
turning.
OR
The processor heatsink is not
properly attached to the processor.
1. Verify that the computer air vents are not blocked.
2. Open the access panel and press the computer power
button.
3. Verify that the system fan is running.
4. Verify that the processor heatsink fan spins. If the fan is
not spinning, verify that the heatsink fan cable is plugged
into the system board connector and that the heatsink is
properly seated.
5. Replace the processor heatsink.
System does not turn on, and
the LEDs on the front of the
computer are not ashing.
System cannot power on. Press and hold the power button for less than four seconds. If
the hard drive LED turns green:
1. To nd a faulty device, remove all devices one at a time:
a. Disconnect AC power to the computer.
b. Remove a device.
c. Reconnect AC power and turn on the computer.
66 Chapter 4 Diagnostics and troubleshooting

HP Z240 Specifications

General

Chassis type	Tower
Product color	Black
Country of origin	China
Water cooling system	No
Product type	Workstation
Motherboard chipset	Intel® C236
Memory slots	4x DIMM
Internal memory	8 GB
Memory channels	Dual-channel
Memory clock speed	2133 MHz
Internal memory type	DDR4-SDRAM
Maximum internal memory	64 GB
Memory layout (slots x size)	2 x 4 GB
HDD speed	7200 RPM
HDD interface	SATA
Storage media	HDD
Optical drive type	DVD Super Multi
Card reader integrated	-
Total storage capacity	1000 GB
Number of HDDs installed	1
On-board graphics card ID	0x191D
Discrete graphics card model	Not available
On-board graphics card model	Intel® HD Graphics P530
Graphics card Open GL support	Yes
On-board graphics card family	Intel® HD Graphics
Maximum on-board graphics card memory	1 GB
On-board graphics card OpenGL version	4.4
On-board graphics card base frequency	400 MHz
On-board graphics card DirectX version	12.0
On-board graphics card dynamic frequency (max)	1150 MHz
Number of displays supported (on-board graphics)	3
Power supply	400 W
Recovery operating system	Windows 10 Pro
Operating system installed	Windows 7 Professional
Operating system architecture	64-bit
Ethernet LAN data rates	10, 100, 1000 Mbit/s
USB 2.0 ports quantity	4
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	6
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity	0
Tcase	- °C
Bus type	DMI3
Stepping	R0
Processor cache	8 MB
Processor model	E3-1245V5
System bus rate	8 GT/s
Processor series	Intel Xeon E3-1200 v5
Processor socket	LGA 1151 (Socket H4)
Processor threads	8
Processor codename	Skylake
Processor frequency	3.5 GHz
Processor cache type	Smart Cache
Configurable TDP-down	- W
Processor lithography	14 nm
Processor manufacturer	Intel
PCI Express slots version	3.0
Processor boost frequency	3.9 GHz
PCI Express configurations	1x16, 1x8+2x4, 2x8
Thermal Design Power (TDP)	80 W
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, 1866, 2133 MHz
Memory bandwidth supported by processor (max)	34.1 GB/s
Scalability	1S
Processor ARK ID	88173
Processor package size	37.5 x 37.5 mm
Supported instruction sets	AVX 2.0, SSE4.1, SSE4.2
Intel Secure Key Technology version	1.00

Weight and Dimensions

Depth	442 mm
Width	170 mm
Height	399 mm
Weight	8600 g