Beep Codes Post Description | HP 2116AH, 2500, 2183AF, 2182US, 2182AT

	Beep Codes	POST Description
	2-1-4-4	Initialize MultiBoot
	2-1-4-4

	2-2-1-1	Display CPU type and speed
	2-2-1-1

	2-2-1-2	Initialize EISA board
	2-2-1-2

	2-2-1-3	Test keyboard
	2-2-1-3

	2-2-2-1	Set key Select if enabled
	2-2-2-1

	2-2-2-2	Enable USB devices
	2-2-2-2
	2-2-3-1	Test for unexpected interrupts
	2-2-3-2	Initialize POST display service
	2-2-3-2
	2-2-3-3	Display prompt "Press F2 to enter SETUP"
	2-2-3-3
	2-2-3-4	Disable CPU cache
	2-2-3-4
	2-2-4-1	Test RAM between 512 and 640 KB
	2-2-4-1
	2-3-1-1	Test extended memory
	2-3-1-1
	2-3-1-3	Test extended memory address lines
	2-3-1-3
	2-3-2-1	Jump to UserPatch1
	2-3-2-1
	2-3-2-3	Configure advanced cache registers
	2-3-2-3
	2-3-2-4	Initialize Multi Processor APIC
	2-3-2-4
	2-3-3-1	Enable external and CPU caches
	2-3-3-1
	2-3-3-2	Set up System Management Mode (SMM) area
	2-3-3-2
	2-3-3-3	Display external L2 cache size
	2-3-3-3

	2-3-3-4	Load custom defaults (optional)
	2-3-3-4

	2-3-4-1	Display shadow-area message
	2-3-4-1

	2-3-4-3	Display possible high address for UMB recovery
	2-3-4-3

	2-4-1-1	Display error messages
	2-4-1-1

	2-4-1-3	Check for configuration errors
	2-4-1-3

	2-4-2-3	Check for keyboard errors
	2-4-2-3

	2-4-4-1	Set up hardware interrupt vectors
	2-4-4-1

	2-4-4-2	Initialize Intelligent System Monitoring
	2-4-4-2

	2-4-4-3	Initialize coprocessor if present
	2-4-4-3

	3-1-1-1	Disable onboard Super I/O ports and IRQs
	3-1-1-1

	3-1-1-2	Late POST device initialization
	3-1-1-2

	3-1-1-3	Detect and install external RS232 ports
	3-1-1-3
	3-1-1-4	Configure non-MCD IDE controllers
	3-1-1-4
	3-1-2-1	Detect and install external parallel ports
	3-1-2-1
	3-1-2-2	Initialize PC-compatible PnP ISA devices
	3-1-2-2
	3-1-2-3	Re-initialize onboard I/O ports
	3-1-2-3
	3-1-2-4	Configure Motherboard Configurable Devices (optional)
	3-1-2-4
	3-1-3-1	Initialize BIOS Data Area
	3-1-3-1

3-24	Troubleshooting and Diagnostics		Service Manual

2547EA, 2550CA, 2552AI, 2541AH, 2543AH specifications

The HP 2135US is a versatile all-in-one desktop computer designed to meet the needs of home and small office users. This robust machine is particularly attractive for individuals who seek a blend of performance, aesthetics, and user-friendly features.

At the heart of the HP 2135US is its powerful Intel Core processor. This series of CPUs provides reliable performance for multitasking and productivity tasks, ensuring smooth operation whether you're working on documents, browsing the web, or streaming multimedia content. Complementing the processor is a competent amount of RAM, allowing users to run multiple applications simultaneously without experiencing slowdowns.

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Storage is another significant feature of the HP 2135US. It comes equipped with a sizeable hard drive, providing ample space for files, applications, and media libraries. Furthermore, the device offers options for solid-state drives, which enhance the system's speed and responsiveness. This blend of storage solutions ensures that users can choose configurations that best fit their needs.

Connectivity is a strong suit of the HP 2135US, as it includes a range of ports and wireless options. Multiple USB ports allow for easy connection of peripherals such as printers, keyboards, and external storage devices. Additionally, integrated Wi-Fi and Bluetooth capabilities enable seamless networking and device pairing, enhancing the overall user experience.

The integrated graphics in the HP 2135US ensures decent performance for everyday tasks and light gaming. Combined with its multimedia features, the computer serves as a capable entertainment hub for users who enjoy watching movies or playing games.

In terms of design, the HP 2135US boasts a sleek, modern aesthetic that fits well in any environment. Its compact form factor makes it space-efficient, an important consideration for users with limited workspace. The ergonomics of the design also contribute to comfortable usage over extended periods.

To sum up, the HP 2135US represents a blend of performance, connectivity, and design sophistication. Its comprehensive set of features makes it an excellent choice for users seeking an all-in-one solution for both work and play, proving itself to be a worthy addition to any modern workspace or home office setup.

Beep Codes

POST Description

2547EA, 2550CA, 2552AI, 2541AH, 2543AH specifications