Ensure that no special memory, Your computer

Light Pattern	Problem Description	Suggested Resolution

	No memory modules are detected.	• If you have one memory module
		installed, reinstall it and restart the
		computer. For information on
		reinstalling memory modules, see your
		online User’s Guide.
		• If you have two or more memory
		modules installed, remove the modules,
		reinstall one module, and then restart
		the computer. If the computer starts
		normally, reinstall an additional module.
		Continue until you have identified a
		faulty module or reinstalled all modules
		without error.
		• If available, install properly working
		memory of the same type into your
		computer.
		• If the problem persists, contact Dell. For
		information on contacting Dell, see your
		online User’s Guide.

	Memory modules are detected, but a	• Ensure that no special memory
	memory configuration or compatibility	module/memory connector placement
	error exists.	requirements exist.
		• Verify that the memory modules that
		you are installing are compatible with
		your computer.
		• If the problem persists, contact Dell. For
		information on contacting Dell, see your
		online User’s Guide.

	A failure has occurred.	• Ensure that the cables are properly
		connected to the system board from the
	This pattern also displays when you enter	hard drive, CD drive, and DVD drive.
	This pattern also displays when you enter	• Check the computer message that
	system setup and may not indicate a	• Check the computer message that
	system setup and may not indicate a	appears on your monitor screen.
	problem.	appears on your monitor screen.
	problem.	• If the problem persists, contact Dell. For
		• If the problem persists, contact Dell. For
		information on contacting Dell, see your
		online User’s Guide.

	After POST is complete, all four	None.
	diagnostic lights turn green briefly before
	turning off to indicate normal operating
	condition.

Quick Reference Guide

GX620 specifications

The Dell OptiPlex GX620 is a desktop computer that was launched in the mid-2000s and quickly became popular in business environments. Despite its age, the OptiPlex GX620 remains notable for its build quality, upgradeability, and reliability, traits that have made Dell a respected name in the commercial PC market.

One of the key features of the GX620 is its compact form factor. The system was available in several configurations, including a small form factor (SFF) and a mini-tower, allowing it to fit comfortably in various workspace environments. This flexibility makes it an attractive option for businesses looking to save space while maintaining performance.

The GX620 was powered by Intel processors, specifically the Intel Pentium D and Intel Core Duo. These efficient processors provided ample power for productivity tasks, making the GX620 suitable for typical office applications such as word processing, spreadsheets, and web browsing. The system supported a maximum of 4GB of DDR2 RAM, which, while modest by today’s standards, was ample for the typical uses of its time.

In terms of storage, the GX620 offered several options, including traditional hard drives with variable capacities. This allowed users to select the right balance of performance and storage size according to their specific needs. Additionally, the system featured numerous connectivity options, including USB 2.0 ports, audio jacks, and an optional PCI Express slot for expanding capabilities with additional graphics or network cards.

The OptiPlex GX620 was equipped with Dell's management technology, which included remote management features that allowed IT departments to efficiently deploy and maintain multiple units across an organization. This was particularly advantageous for larger businesses that required centralized management tools to streamline operations.

Moreover, the GX620 was built with Dell's focus on sustainability and energy efficiency. The design considered environmental factors, and users appreciated its low power consumption relative to performance, aligning with corporate sustainability goals.

In conclusion, the Dell OptiPlex GX620 remains a notable example of robust desktop computing designed for business environments. With its compact design, reliable performance, and management features, it served well in various office settings despite being a product of an earlier era, showcasing Dell's commitment to quality and functionality.

Dell GX620 Ensure that no special memory, Verify that the memory modules that, Your computer

Models: GX620

Light Pattern

• If you have one memory module

installed, reinstall it and restart the

computer. For information on

online User’s Guide.

• If you have two or more memory

the computer. If the computer starts

Continue until you have identified a

without error.

• If available, install properly working

memory of the same type into your

online User’s Guide.