Power supplies are responsible for feeding clean, stable juice to the sensitive components inside your PC. Calling it one of the most important components you'll buy is not an overstatement. The Tom's Hardware team can help you find the right PSU to keep your system running reliably all day long.
Modular Power Supplies Less Efficient Say Makers
Jun 7, 2009 - in News
It's all about power efficiency these days.
Enermax to Bring More Efficient Power Supplies
Jun 4, 2009 - in News
The 80-Plus power supply standard while good, just isn't good enough, so says Enermax.
Small Business Battery Backup: Eaton's 3,000VA PW5130
May 8, 2009 - in Reviews
Uninterruptible power supplies (what most people call battery backup) are essential for protecting servers and bridging power outages. We looked at a high-end solution from Eaton, which offers impressive flexibility in a small business environment.
Apple Sued Over MagSafe MacBook Adapters
May 6, 2009 - in News
Apple is at the center of another class action lawsuit regarding the MagSafe connectors on its laptop adapters.
OCZ's First UPS, Made by PC Power & Cooling
Apr 8, 2009 - in News
OCZ Technology announced this week that it has stepped into the UPS arena with the release of its Pro-Source 1500 UPS.
Google Picks Gigabyte for Efficiency/Reliability
Apr 2, 2009 - in News
Google this week released details of how it builds servers at its major data centers. Not surprisingly, Google focused on efficiency and power, two big criteria for running an always online operation.
APC’s Universal Notebook Battery Booster
Mar 27, 2009 - in Reviews
The Universal Notebook Battery is a sleek, carry-on battery stack that can double your notebook battery capacity and run time, while providing an additional USB port to charge other devices.
AMD: Let's Revamp Laptop Battery Metrics
Mar 16, 2009 - in News
Tech giant AMD sees current laptop battery life projections as outdated and inaccurate. In order to better serve the consumer, AMD wants to approach battery life times like the car companies approach miles per gallon.
Lian Li Releases New Mini-Tower Chassis
Jan 23, 2009 - in News
Lian Li’s new PC-A05N case is small and to the point. Utilizing a front-mounted power supply design, the chassis achieves a unique short and small profile
Upcoming Performance Thermaltake PSUs
Jan 13, 2009 - in News
Thermaltake was showcasing its upcoming Toughpower XT series of power supplies at CES 2009, along with its new Evo_Blue power supply.
Corsair Launches 850W TX series PSU
Dec 18, 2008 - in News
Corsair launches its new 850-watt TX power supply
Tom's OC Competition: Mid-day Pics
Nov 9, 2008 - in Picture Story
Check out mid-day pictures from our overclocking competition!
Power Supply Roundup: Part II
Nov 7, 2008 - in Reviews
In Part I of our power supply roundup, we went through five mainstream PSUs rated at up to 700 W. Round two sees us tackle another seven mid-range units in an effort to determine which power supply deserves your attention.
Panasonic Unveils Notebook Fuel Cell
Oct 21, 2008 - in News
Panasonic announced it will showcase a new methanol fuel cell prototype this week that can output up to 20 W of power for 20hours
PSU Roundup: Performance, Price, Efficiency
Oct 16, 2008 - in Reviews
Good performance, high efficiency and low price: It’s not easing choosing a power supply that offers all three of these features. Tom’s Hardware tests mainstream power supplies of up to 700 watts to determine which will meet your needs best.
Corsair Shows New Energy Efficient and Quiet PSU Line
Oct 15, 2008 - in News
In need of a quiet, energy-efficient power supply for that new build? Announced today, Corsair brings you a new line of economical, quiet, energy-efficient desktop computer power supply units – dubbed Corsair Power.
IDF 2008: Intel Imagines Wireless Power For Your Laptop
Aug 22, 2008 - in News
Intel traditionally closes its Developer Forum with a visionary keynote that provides a glimpse into Intel's labs and how the company's engineers think about how technology could shape the world in five, ten or - in this case - 40 years
Battery Cell Shortage Still Looming
Aug 22, 2008 - in News
Despite that some industry players expect battery cell supply will reach an equilibrium in the fourth quarter, sources at Taiwan notebook battery module makers have noted that it is still too early to tell whether supply will be enough to feed demand.
Silent PSUs: Fortron Versus Silverstone
Aug 20, 2008 - in Reviews
Home theater PCs should be as quiet as possible. Since most of the noise is caused by the fans on the CPU and power supply, we tested two passive power supplies that use no fans.
Gigabyte Goes Extreme Cold Overclocking
Jul 2, 2008 - in News
Gigabyte launches its first State-side overclocking competition and plans for more in the coming months.
FSP/Fortron: Boxed Mobile PSUs and Modular PSUs in a Box
Jun 5, 2008 - in News
FSP decided to ship its new top model PSU in a stylish aluminum box. It also showed off a boxed power supply with adjustable voltage for mobile computers.
Power Supply OEM ManufacturerCWT Claims 90% PSU Efficiency Crown
Jun 5, 2008 - in News
We wrote about Coolermaster’s 80plus Silver certification, which stands for 87% maximum power efficiency. The Taiwanese PSU manufacturer CWT, Channel Well Technology, now claims to have reached 90%.
Enermax Turns Up The Heat At Computex
Jun 4, 2008 - in News
Taipei (Taiwan) - Just when you thought power supplies and fans were boring, Enermax is showing off some pretty hot (literally) gear at this year's Computex convention in Taipei.
Making Computex Green. Literally.
Jun 2, 2008 - in News
Computex 2008 isn’t only growing, but it is transforming. This year, Computex has two different venues and it is emphasizing environmental by trying to be green - literally.
Computex: Coolermaster Launches 80plus Silver PSU
Jun 1, 2008 - in News
Power supplies still have opportunities for improving power efficiency. Coolermaster is the first PSU manufacturer to release a unit that complies to 80plus silver, reaching between 85 and 88% efficiency.
Gigabyte: Asus Lied & Fooled Customers
May 13, 2008 - in News
Last week Tom’s Hardware had the opportunity to sit down with Gigabyte’s technical team in Taiwan and discuss motherboards, energy efficiency and the competition. Gigabyte’s technical team wasted no time in jumping into charts, benchmarks and comparisons
PC Power Supplies: More Important than You Think
Aug 9, 2007 - in Reviews
Despite their importance and the sometimes demanding requirements they must satisfy, power supplies just don't get enough attention. We illuminate everything worth knowing about power supplies here, using Gigabyte's new Odin GT series as an illustration. The Odin family brings software monitoring and configuration into an already very interesting picture.
5 Power Supplies Get the Full Juice Treatment
Feb 7, 2006 - in Reviews
We give five new power supply units the full juice treatment after our previous stress tests laid many supposedly high-end units to rest in the scrap heap. Did vendors take heed of the hard lessons they learned during our past tests?
Stress Test: Power Supplies Under Full Load
Jul 11, 2005 - in Reviews
We put PC power supplies from 300 to 850 watts under continuous load to see if they can satisfy the power appetite of potent Athlon and P4 systems. Are they efficient and stable? Click into the THG Laboratory to find out!
How THG Tests Power Supplies
Jul 11, 2005 - in Reviews
Power supply performance specs are going through the roof, but you can't tell from looking at a device whether it will actually deliver the 600 watts it claims to. That's why we put them through their paces in the lab - and this is how we do it.