Computer Repair

Dave's Computers

Black Lines on a Laptop Screen: Vertical vs Horizontal, and the One Test That Tells You What’s Wrong

Jun 15, 2026

Vertical lines usually mean a cable or connection problem; horizontal lines usually mean the panel. One five-minute external monitor test tells you whether the screen is even the culprit — here’s how to read what your laptop is telling you.

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Dave's Computers

Dead Pixels on a Laptop Screen: Stuck vs Dead, and the One Fix That Sometimes Works

Jun 14, 2026

Dead pixels are black and permanent; stuck pixels are colored and sometimes recoverable with a pixel-cycling tool. Here’s how to tell which you have, the one fix worth running, and the three signs the panel itself is on its way out.

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Dave's Computers

Screen Bleeding on a Laptop: Backlight Bleed vs LCD Damage (and How to Tell in One Minute)

Jun 14, 2026

“Screen bleeding” covers two very different problems: backlight bleed (a cosmetic glow at the edges) and liquid crystal leak (a dark blotch that spreads). A one-minute black-screen test tells you which one you have — and whether to act now.

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Laptop Screen Flickering? What Causes It, and the One Fix to Try First

Jun 10, 2026

Laptop screen flicker splits into two families: software (driver and app issues, fixable at home) and hardware (a failing cable or panel that worsens with every lid flex). The Task Manager test and one driver fix tell you which side you’re on.

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How to Fix My Prebuilt PC Won’t Start After Upgrade: PC Build Turn On Issues

May 3, 2025

PC Repair · Dave’s Computers Somerville, NJ  ·  5 min read How to Fix a Prebuilt PC That Won’t Turn On After an Upgrade You upgraded your prebuilt PC — new RAM, a GPU, maybe a fresh SSD — and now it won’t post. The fans might spin for a second and die, or nothing […]

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How to Fix a Custom-Built PC That Won’t Turn On

Apr 27, 2025

How to Fix a Custom-Built PC That Won’t Turn On Building a custom PC can be a rewarding experience, giving you the power to tailor your machine to your exact needs. However, nothing is more frustrating than that moment when your freshly assembled powerhouse refuses to turn on. If you’re wondering how to fix a […]

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How to Upgrade Prebuilt Gaming PC: Upgrade Your Pre-built PC for Improved Gaming

Apr 24, 2025

How to Upgrade Prebuilt Gaming PC: Upgrade Your Pre-built PC for Improved Gaming Upgrading a pre-built gaming PC can breathe new life into your gaming experience, offering enhanced performance without the stress of a complete overhaul. At Dave’s Computers, we understand the importance of getting the most out of your rig — whether it’s a […]

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Dave's Computers

Is My Computer Worth Fixing

May 4, 2023

If your computer is more than a few years old and broken or has lots of issues, you might be wondering, “Is it worth it to fix my computer?” Or would it just be better to buy a new computer? As a computer repair store, we spend a lot of time fixing computers and we […]

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Dave's Computers

Benefits of Custom Built PC

Jan 21, 2023

Are you looking for the best way to get a PC that fits your needs? A custom-built PC may be your answer. A custom PC builder can help make this process easier and more efficient. With the right components, knowledge, and expertise, it is possible to construct a powerful computer with superior performance compared to […]

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Dave's Computers

What You Need to Know About Becoming a Computer Technician

Nov 24, 2022

What is a Computer Technician As a computer technician, your primary responsibility is to help individuals ensure that their computers and computer networks are running smoothly. Suppose an individual is having an issue with their computer or network. In that case, that is where a computer technician will come in and troubleshoot the problem. As […]

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