Table B-2Diagnostic Front Panel LEDs and Audible Codes (continued)

Activity

Beeps

Possible Cause

Recommended Action

 

 

 

 

 

Red Power LED flashes two

2

Processor thermal

1.

Ensure that the computer air vents are not

times, once every second,

 

protection activated:

 

blocked and the processor cooling fan is

followed by a two second

 

A fan may be blocked or

 

running.

pause. Beeps stop after fifth

 

2.

 

iteration but LEDs continue

 

not turning.

Open hood, press power button, and see if

until problem is solved.

 

OR

 

the processor fan spins. If the processor fan

 

 

 

is not spinning, make sure the fan's cable is

 

 

The heat sink/fan

 

plugged onto the system board header.

 

 

 

 

 

 

assembly is not properly

3.

If fan is plugged in, but is not spinning, then

 

 

attached to the processor.

 

replace heat sink/fan assembly.

 

 

 

4.

Contact an authorized reseller or service

 

 

 

 

provider.

 

 

 

 

 

Red Power LED flashes three

3

Processor not installed

1.

Check to see that the processor is present.

times, once every second,

 

(not an indicator of bad

2.

Reseat the processor.

followed by a two second

 

processor).

pause. Beeps stop after fifth iteration but LEDs continue until problem is solved.

Red Power LED flashes four

4

Power failure (power

times, once every second,

 

supply is overloaded).

followed by a two second

 

OR

pause. Beeps stop after fifth

 

iteration but LEDs continue

 

The incorrect external

until problem is solved.

 

 

 

power supply adapter is

being used on the USDT.

1.Open the hood and ensure the 4 or 6-wire power supply cable is seated into the connector on the system board.

2.Check if a device is causing the problem by removing ALL attached devices (such as hard, diskette, or optical drives, and expansion cards). Power on the system. If the system enters the 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.

3.Replace the power supply.

4.Replace the system board.

OR

The USDT power supply adapter must be at 135W and use the Smart ID technology before the system will power up. Replace the power supply adapter with the HP-supplied USDT power supply adapter.

138 Appendix B POST Error Messages

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Image 148
HP C7A35UT#ABA, Pro 3515 E3S87UTABA, D3K31UTABA, 3500p D8C44UTABA, C7A34UT Activity Beeps Possible Cause Recommended Action
Page 147 Page 149

E3S87UTABA, Pro 3515 E3S87UTABA, Pro 3400 XZ939UT#ABA, C7A31UT#ABA, Pro 3400 A7L25UT#ABA specifications

The HP D3K31UTABA, 3500p D8C44UTABA, C7A35UT#ABA, D3K31UT#ABA, and D8C44UT#ABA are part of HP's extensive lineup of business laptops and desktop computers, designed to meet the demanding needs of professionals and enterprises. Each model showcases HP's commitment to performance, durability, and user-friendly features, making them suitable for a range of applications in various business environments.

The HP D3K31UTABA is a compact and lightweight laptop that emphasizes portability without compromising performance. It typically features an Intel Core i5 or i7 processor, ensuring smooth multitasking and efficient handling of various applications. The device is usually equipped with a 13.3-inch or 14-inch display with Full HD resolution, offering vibrant colors and sharp visuals that enhance productivity during long hours of work. With a robust battery life, users can work on the go without worrying about frequent recharges.

In contrast, the 3500p D8C44UTABA is a more performance-oriented model tailored for enterprise users who require enhanced processing power and reliable connectivity. This laptop often includes features such as a durable chassis, spill-resistant keyboard, and advanced security options like fingerprint readers and TPM (Trusted Platform Module) for data protection. The 3500p is known for its balance of performance and mobility, making it ideal for professionals who travel frequently.

The C7A35UT#ABA is another strong contender in HP's portfolio, designed to provide exceptional versatility. This model typically features an AMD Ryzen processor, catering to users who prefer AMD for its robust performance in multi-threaded applications. Additionally, it often boasts a larger storage capacity through SSD options, ensuring fast data access and improved overall system responsiveness.

The D3K31UT#ABA and D8C44UT#ABA share similarities in design and performance but may differ in specifications such as RAM size, graphics capabilities, and ports for connectivity. Both models offer scalable configurations, allowing businesses to customize them according to their specific needs.

All these models benefit from HP's proprietary technologies such as HP Fast Charge, allowing users to recharge their batteries quickly, and HP Sure Start, which provides self-healing BIOS protection. They also come with HP’s security suite, ensuring data integrity and user privacy.

In summary, the HP D3K31UTABA, 3500p D8C44UTABA, C7A35UT#ABA, D3K31UT#ABA, and D8C44UT#ABA collectively represent HP's dedication to producing high-quality computing devices that cater to the diverse needs of today’s professionals. With a focus on performance, security, and durability, these models are well-equipped to enhance productivity in any business setting.
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