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Aug 31, 2022 · Desktops generally offer better bang for your buck compared with laptops, delivering more power and performance per dollar spent. Depending on the model you choose, you may have to supply your...
Apr 2, 2024 · We’ve tested uninterruptible power supplies and surge protectors from these companies in the past, and all three have long-held reputations as reliable makers of electronics.
- Sarah Witman
- What fits? Power-Supply Form-Factor Basics
- Got Good Leads? Getting to Know PSU Cables
- All Mod Cons: Understanding Modular PSU Cables
- Watts The Deal: How Much Power Do You Need?
- PSU Certifications: Understanding The 80 Plus Program
- Assessing PSU Quality: The Homework Stage
Power supplies, as we know them in desktop PCs, go all the way back to the original IBM PC. But a brief history of today'sPSU designs really begins a little later, in a time before the now-familiar ATX form factor existed, to the IBM PC AT and PS/2 of the 1980s. From these, we got the AT form-factor motherboard with dual six-pin power connectors, a...
The individual cables coming off a PC power supply are often referred to as "leads." Intel's original ATX power spec required only a 20-pin motherboard connector, later adding a separate square four-pin "P4" connector to provide a 12-volt lead to power the CPU independently. (This latter development showed up in the specification update called "ATX...
As more and more cables started poking out of power supplies, it became increasingly obvious to PC upgraders and builders that stashing the unused ones in a big wad between the PSU body and the case wasn't a good option. That's why most top-quality power supplies today make use of modular cable connectors: that is, cables you can plug in as you nee...
When motherboard and graphics-card manufacturers started powering CPUs and GPUs from separate 12-volt connectors, many older power supplies were still designed to put out a substantial portion of their amperage to 5-volt and even 3.3-volt leads. That led to widespread advice and articles recommending wildly exaggerated power-supply ratings to cover...
80 Plus is a power-supply certification program that guarantees a minimum of 80% efficiency across a wide variety of loads, with different levels offering increased energy savings via reduced PSU waste heat. (The more efficient the PSU, the less of the wall power that it draws is dissipated as waste heat before reaching your PC components.) The les...
Now, efficiency is one thing to pay a premium for, but the more nebulous "quality" of manufacture matters more. And quality beats quantity in power supplies, as a generic 800-watt unit is far more likely to fail under a 400-watt load than a 450-watt unit from a top-quality supplier. Assessing quality, though, is a hazy business with PSUs, unless yo...
- Thomas Soderstrom
- Contributor
Mar 18, 2024 · Whether your utility is planning outages to prevent wildfires or you’re preparing for other blackout scenarios, here’s the best gear for backup power and lighting.
3 days ago · Our reviews simplify new technology to help you choose the best desktop for your needs. View our ratings and reviews and browse our buying guide to find the best computers.
Jan 11, 2022 · 1. Corsair AX1000. The best PC power supply. Specifications. Form factor: ATX. Capacity: 1000W. Efficiency rating: 80 Plus Titanium. Modularity: Full. Warranty: 10-year. Today's Best Deals....
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May 16, 2024 · Products at a glance. Best uninterruptable power supply overall. APC UPS, 1500VA UPS Battery Backup & Surge Protector. Capacity: 1500VA / 900W. Voltage : 120 Volts. Outlets: 10. Dimensions: 15.04″D x 3.94″W x 9.84″H. Shop on Amazon. Best uninterruptible power supply for consoles. APC Bundle – 600VA UPS Battery Backup. Capacity: 600VA / 330W.
