Great games need great hardwareAt E3 2017, PC games were everywhere, and because great software needs hardware to run, PCs lurked in every nook and cranny of the show, too. Hell, even the mock diner set up in Bethesda\u2019s booth bristled with gaming rigs.\nFrom that atmospheric setting to the 16-core Threadripper rigs at Alienware\u2019s exhibit to some\u00a0really\u00a0wild modded rigs, these are the glorious PCs that powered E3 2017.Bethesda's PC gaming bunkerImage by Adam Patrick MurrayAnd you thought that diner looked dreary. Both the diner and this WW2 resistance-style bunker were set up to demo\u00a0Wolfenstein II: The New Colossus, which wound up being one of our 10 favorite PC games of E3 2017.Microsoft's masterpiecesImage by Hayden DingmanNot all of E3\u2019s PCs were shoved into dingy diners and dark rooms. Several swanky rigs were held up on a pedestal\u2014literally, in the case of this amazing mod by Marciel Baretto in Microsoft\u2019s booth.Microsoft's masterpieces, part twoImage by Hayden DingmanAnother modded masterpiece, this one from Modder Crow, stood nearby at Microsoft\u2019s booth.Quake meets RyzenImage by Adam Patrick MurrayThis drop-dead gorgeous \u201cAMD Ryzen 7 Nyx Edition\u201d also graced Bethesda\u2019s booth, decked out to celebrate\u00a0Quake Champions. It rocks a Ryzen 7 1800X processor, an 8GB Radeon RX 580, a 240GB Sandisk SSD, and a 1TB Western Digital Blue hard drive. What, no WD Black drive? That\u2019s would\u2019ve tied right in to the theme.Sim racingImage by Adam Patrick MurrayAt the Thrustmasters booth, a racing game was hooked up to a full-blown simulation station complete with a racing wheel, a racing seat, and VIRTUAL REALITY powered by the Oculus Rift. Eat your heart out, Dale Earnhardt Jr.\u00a0Intel's wireless VR techImage by Adam Patrick MurrayOne of the biggest problems with PC virtual reality\u2014neatly side-stepped by the configuration of the aforementioned Thrustmaster sim rig\u2014is the wires that tether headsets to PCs. Intel\u2019s WiGig-powered wireless VR technology eliminates cables while adding next to no latency. Seriously! We tried it. And even though it was demoed on the HTC Vive, which is embracing WiGig sometime in 2018, Intel says the technology is VR-neutral and compatible with any headset that wants to integrate it.More sim racingImage by Origin PCThe\u00a0Project\u00a0Cars booth also sported sim stations, albeit without VR. If you peer closely at the boxes sitting behind the rigs you\u2019ll see these setups were powered by Origin PC.A full sensory experienceImage by Adam Patrick MurrayOrigin PC\u2019s beastly rigs were much more prominent at Creative Labs' booth, where they were equipped with the beefy new 32-bit\u00a0Sound BlasterX AE-5 sound cards that launched earlier this week. Great visuals need great audio to match.\u00a0Cougar ConquerImage by Hayden DingmanCougar brought its wild new kind-of-sort-of open air Conquer case to E3 2017, decked out with high-end PC gear to show what it can do.\u00a0Alienware AuroraImage by Adam Patrick MurrayAlienware\u2019s booth featured all kinds of potent PCs, from the Aurora desktop...\u00a0Alienware 15Image by Adam Patrick Murray...to the Alienware 15 gaming laptop. But one rig in particular stole the show.Alienware Area-51 ThreadripperImage by Adam Patrick MurrayThis iconic Area-51 PC standing tall in Alienware\u2019s booth held a powerful secret: AMD\u2019s monstrous 16-core Threadripper CPU, which will be exclusive to Dell\u2019s Alienware systems among major PC vendors. Alienware showed off the system\u2019s chops by simultaneously playing a 4K game, running a 4K video, rendering a 3D image, and broadcasting the game using OBS.Pure powerImage by Adam Patrick MurrayThis single table holds both the diamond-shaped HP Omen X and a potent Cyberpower PC packing Intel\u2019s new Skylake-X chips and Nvidia\u2019s powerful GeForce GTX 1080 Ti.\u00a0Game readyImage by Adam Patrick MurraySpeaking of the GTX 1080 Ti, you could find them in spades at Nvidia\u2019s booth. Demos of\u00a0Destiny 2\u00a0at 4K\/60 all ran on GeForce\u2019s champion, and it was one of the prettiest PC games we\u2019ve ever seen.GeForce everywhereImage by NvidiaGeForce-rocking rigs weren\u2019t limited to Nvidia\u2019s booth. You could find GeForce PCs powering demos of Crackdown 3 (pictured), Lawbreakers, and Rainbow Six: Siege, among many others.Tiny, powerful laptopsImage by NvidiaThis\u00a0Absolver demo at Nvidia\u2019s booth ran on a laptop built around the company\u2019s new\u00a0Max-Q technology, which crams potent GeForce GTX 1070 and GTX 1080 graphics into thin-and-light notebooks.GeForce G-AssistImage by NvidiaNvidia brought a surprise to E3 2017, too: real-life \u201cGeForce G-Assist\u201d flash drives based on the company\u2019s April Fools' Joke this year. It won\u2019t eliminate AFKs or give you a BossBoost\u2122 like the joke version, but the GTX USB drive holds up to 64GB of data. Nvidia passed G-Assist drives out to some E3 2017 booth visitors and held giveaways for others, but you won\u2019t be able to buy it in stores.\u00a0Razer Thresher UltimateImage by Adam Patrick MurrayNvidia\u2019s not the only green-loving hardware vendor with fresh gear at E3. Razer introduced the $250 Thresher Ultimate, a new wireless gaming headset built with Dolby 7.1 surround sound. It comes with a charging station broadcasting a 2.4GHz signal to provide a connection range of up to 40 feet. Razer\u2019s mostly pushing this for consoles, but it\u2019ll work with Windows PCs, too.I heard that!Image by Adam Patrick MurrayDid somebody say gaming headphones? This MSI Aegis X3 gaming desktop has antennas that look like perked-up puppy ears.Alienware gaming monitorsImage by Adam Patrick MurrayAlienware\u2019s moving beyond PCs alone, and into the fiercely competitive world of peripherals. First up: Gaming monitors. This\u00a024.5-inch TN display packs a 1080p resolution, a blazing-fast 240Hz refresh rate, and a scant 1ms response time. This beast is\u00a0perfect for\u00a0Counter-Strike, in other words. You can snag it with AMD\u2019s stutter- and tear-killing FreeSync technology for $500, or Nvidia\u2019s rival G-Sync tech for $700.Hands-onImage by Adam Patrick MurrayAlienware also rolled out new gaming keyboards and mice\u2014some more enticing than others. This\u00a0AW568 Advanced Gaming keyboard looks pretty slick.\u00a0Dell hearts AMDImage by Adam Patrick MurrayAlienware parent company Dell also had AMD Ryzen-based Inspiron rigs running games. Put away those controllers and break out the keyboard and mouse!DXRacerImage by Adam Patrick MurrayDXRacer\u2019s booth was all about the one of the most crucial bits of PC hardware\u2014gear for your butt. Don\u2019t overlook the importance of a comfortable desk chair. Bonus points for the streamer broadcasting to Twitch straight from the show floor.Games, games, gamesImage by UbisoftThat wraps up our look at the show\u2019s powerful PC hardware, but E3\u2019s really all about the software. Don\u2019t forget to check out PCWorld\u2019s roundup of 40 must-see gaming gems from E3 2017. We\u2019ve rounded up the trailers from all the hottest new PC games into one handy-dandy article so you don\u2019t need to scour the web for info.