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HP Omni 100-5158 20-inch All-In-One Desktop PC

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HP Omni 100-5158 20-inch All-In-One Desktop PC

HP Omni 100

©HP Inc.

The Bottom Line

Jan 20 2012 - HP's Omni 100 all-in-one is certainly designed for those on a budget. Its performance is certainly not going to be as high as more expensive systems but is sufficient for most users that just use their PC for the web, watching media and some productivity. The low cost does have other limitations in terms of limited expansion ports and wired peripherals. Still, there are not many options looking for a desktop all-in-one for under $600 that aren't based upon netbook internals.


  • Very Affordable
  • Easy To Upgrade Compared To Some All-In-Ones


  • Limited Performance
  • Wired Keyboard And Mouse
  • Lacks USB 3.0 Ports


  • AMD Athlon II X2 260u Dual-Core Desktop Processor
  • 4GB PC3-8500 DDR3 Memory
  • 500GB 7200rpm SATA Hard Drive
  • 8x DVD+/-RW Dual Layer Burner
  • 20" WSXGA (1600x900) Display With AMD Radeon HD 4270 Integrated Graphics
  • 5.1 Audio Support With Stereo Speakers
  • Fast Ethernet, 802.11b/g/n Wireless
  • Six USB 2.0, 6-in-1 Card Reader
  • 20" x 16" x 8.6"
  • Windows 7 Home Premium, Office Starter, Cyberlink DVD, Norton Internet Security

Review - HP Omni 100-5158

Jan 20 2012 - HP is best known for the TouchSmart all-in-one systems that feature the touchscreen software and interface but they also make a range of all-in-ones that drop the touch features to be much more affordable. The HP Omni 100-5158 is the latest 20-inch version of the system that comes with a very respectable $600 retail price tag that is hundreds less than most systems. Of course, there are a number of concessions that have to be made in order to achieve such a low price.

The Omni 100-5158 is based around the more affordable AMD platform. It would have been nice to see a new Fusion based processor but instead it relies on the Athlon X2 260u dual core processor. This processor is not going to be known for high performance but more for its low power consumption. It will get by just fine in basic web browsing, media watching or productivity applications but will struggle heavily if tasks with something like desktop video. The system also comes with just 4GB of DDR3 memory compared to most which feature 6GB or more. This will limit the performance a bit when multitasking but should still provide a generally smooth experience in Windows 7.

Storage space for the HP Omni 100-5158 is definitely less than what is found in many other all-in-ones. At just 500GB of space, it has roughly half what the average system has for storing applications, data and media files. A standard dual-layer DVD burner will handle playback and recording of CD or DVD media. Interestingly enough, these two storage features are pretty much identical to what the base Apple iMac 21-inch system comes equipped with for double the price. One big disappointment with the storage is the external peripheral ports. While many new systems come with either a USB 3.0 or eSATA port for high speed external storage options, this one is limited to just six USB 2.0 ports.

With its 20-inch display, the HP Omni 100 is one of the smallest on the market for an all-in-one. This helps reduce the overall size of the system that allows it to be placed just about anywhere but it does mean that it has a more limited 1600x900 resolution that doesn't support 1080p high definition video playback. The graphics are handled by the AMD Radeon HD 4270 integrated graphics system. This is to be expected with such a low cost system. The solution overall is a bit better than even Intel's latest HD Graphics because it does support Direct X 11 but it still doesn't offer much in terms of 3D performance for even casual 3D gaming.

The design of the Omni could almost be called a black plastic clone of the Apple iMac. It uses a very similar pedestal base with a glossy coated screen. With its price range, it obviously doesn't have the same level of quality exterior components. In addition, the system relies on a wired keyboard and mouse setup rather than wireless. This is a bit disappointing consider how inexpensive it is for wireless peripherals now but obviously this was done to keep the costs low. As a result, this also eats up two of the six available USB ports. On the other hand, if users want to upgrade the memory or internal hard drive it is very easy to remove a single panel without tools to access both.

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