HP Compaq Pro 4300 Maintenance & Serice Guide

Power LED flashes Red four times, once every second, followed by a two second pause, and the computer beeps
four times. (Beeps stop after fifth iteration but LEDs continue flashing.)
Cause Solution
Power failure (power supply is overloaded). 1. If equipped with a voltage selector, check that the
voltage selector, located on the rear of the power supply
(some models), is set to the appropriate voltage. Proper
voltage setting depends on your region.
2. Open the access panel and ensure the power supply
cable is seated into the connector on the system board.
3. Check if a device is causing the problem by removing
ALL attached devices (such as hard drives or optical
drives and expansion cards). Power on the system. If
the system enters POST, then power off and replace
one device at a time and repeat this procedure until
failure occurs. Replace the device that is causing the
failure. Continue adding devices one at a time to ensure
all devices are functioning properly.
4. Replace the power supply.
5. Replace the system board.
The incorrect external power supply adapter is being used on
the All-in One or USDT.
The power supply adapter must be at the correct power
rating and use the Smart ID technology before the system
will power up. Replace the power supply adapter with the
HP-supplied power supply adapter.
Solving Power Problems 99

HP Compaq Pro 4300 Specifications

General

Full HD	No
Panel type	TN
LED backlight	Yes
Display diagonal	20 \
Display resolution	1600 x 900 pixels
Native aspect ratio	16:9
Tcase	65.3 °C
Bus type	DMI
Processor cache	3 MB
Processor cores	2
Processor model	i3-3240
System bus rate	5 GT/s
Processor family	Intel® Core™ i3
Processor series	Intel Core i3-3200 Desktop Series
Processor socket	LGA 1155 (Socket H2)
Processor threads	4
Processor codename	Ivy Bridge
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	2.0
Processor operating modes	64-bit
PCI Express configurations	1x16, 2x8
Thermal Design Power (TDP)	55 W
CPU multiplier (bus/core ratio)	34
Memory types supported by processor	DDR3-SDRAM
Memory channels supported by processor	Dual
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
Product type	All-in-One PC
Motherboard chipset	Intel® H61
Internal memory	4 GB
Memory slots type	SO-DIMM
Memory clock speed	1600 MHz
Maximum internal memory	16 GB
Memory layout (slots x size)	1 x 4 GB
HDD speed	7200 RPM
HDD interface	SATA
Storage media	HDD
Optical drive type	DVD Super Multi
Total storage capacity	500 GB
Compatible memory cards	SD
Autonomy mode	-
Storage drive interface	Serial ATA
On-board graphics card ID	0x152
Discrete graphics card model	Not available
On-board graphics card model	Intel® HD Graphics 2500
On-board graphics card family	Intel® HD Graphics
On-board graphics card base frequency	650 MHz
On-board graphics card dynamic frequency (max)	1050 MHz
Number of displays supported (on-board graphics)	3
RMS rated power	4 W
Wi-Fi standards	Not supported
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Headphone outputs	1
USB 2.0 ports quantity	6
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	0
Bundled software	Adobe Flash Player\\r HP Marketplace\\r Bing\\r Microsoft Internet Explorer\\r PDF Complete Corporate Edition\\r WinZip Basic\\r Yahoo\\r Compre Office
Recovery operating system	Windows 8 Pro
Operating system installed	Windows 7 Professional
Processor ARK ID	65690
Processor package size	37.5 x 37.5 mm
Supported instruction sets	AVX, SSE4.1, SSE4.2
Thermal solution specification	PCG 2011C
Intel Secure Key Technology version	0.00
Intel Identity Protection Technology version	1.00
Product color	Black
Country of origin	China
Total megapixels	1.3 MP
AC adapter power	150 W
Operating temperature (T-T)	5 - 35 °C
Operating relative humidity (H-H)	15 - 80 %
Sustainability certificates	ENERGY STAR

Weight and Dimensions

Depth (with stand)	220 mm
Width (with stand)	507 mm
Height (with stand)	406 mm
Weight (with stand)	5730 g