Desktop gaming to laptop build

For the peripherals I would just connect standard USB devices to the USB headers on the motherboard. As for power, something like this 200W high power 24pin mini-ITX DC ATX power supply w/16V-24VDC wide range input | eBay and the biggest battery you can get is probably going to be your best bet. As for the TV, try and find so etching designed to work in a car. This should run off 12v and so could be powered either with the same PSU or a separate 12v regulator. The closest thing to this that I know of is the Ben heck vs. Hack 5 case mod challenge where Ben built a portable LAN party friendly rig. I have thinking of trying this myself for a while and would be interested to see how much success you have.

the power connector there would work wonders going to order it in a few weeks and go to the local battery depot im thinking that all will fit in a suitcase size package or smaller the main constraint being laser cuts and cnc work being outsourced to the local college and the battery i was thinking of using a group of high amp hour batteries but to find a way to keep all under 30lbs

200 watt power supply will not be enough power to run a high end gaming rig (which usually average 400 to 700 watts) and a battery to run it will weigh so much that it would not be portable. The cheaper and easier route would be to buy a decent laptop and buy a external graphic card.

You could just use 2 of the PSU's wired in parallel for a little extra currant, or even a 12 and 5v regulator as the graphics card, HDD, DVD etc. only use those voltages. As for battery life, I would accept that play time will be limited an try and run off mains where possible. Alternatively, removable, exchangeable battery's can be very helpful. Also, I recommend using a solid state hard drive if at all possible. They are lighter and more shock resistant than regular drives and also have a huge impact on boot and load times.

but using two power supplies will double the weight of the power supply and the battery unless you want to cut available power in half by using one battery with two power supply.. Its like Newton's third law, For every action there is a equal and opposite reaction. Example adding the second power supply increases the weight, not adding a second battery saves weight but cuts available power.

As difficult as it may seem there are and and Intel platforms of higher power than most laptops that offer a 12v ac/DC adapter plug like a laptop with a pci-e x16 slot now with that being said a charge controller DC/DC convertor and a single deep cycle lawnmower battery with 120amp hours at 200watt will give roughly 3 hours of life. A lawnmower battery being about 5-10 lbs there are lithium ion rechargables with better amp hours like multiple laptop batteries in a series setup will allow the same voltage with higher amp ie the DC/DC convertor. I have tested the lawnmower battery on a 450watt system and it lasted 1.25 hours while pushing the system with prime 95 and I was able to get stable current from said battery with an automotive capacitor.

Exactly, the system you want to build will weigh in between 15 to 20 pounds at the least versus a laptop with a external graphic card weighing in at about 8 pounds. when I am out in the rv and running movies threw my projector at the campground weight is my concern. My Alienware with external graphic card works but right now I am hoping to win the build Ben did last week or buy a Raspberry Pi to build a media center so I have light machine for movies and use the Alienware to game on. Together these would be only 9 pounds versus 15 pounds. Balancing power versus weight is the name of the game. Plus I get 8 hours of my laptop versus 3.

I personaly cannot get along very well with laptops, so a system like this is still prefferable compared to a laptop, despite the extra weight. The extra weight is also not too bad for me. In the past I have carried a 24 pound ossiloscopoe as hand luggage on an international flight. Don't get me wrong, I understand that this device will be very impracticle, but I stiill feel it is worth trying to build.

Samuel Doye said: "I personally cannot get along very well with laptops, so a system like this is still preferable compared to a laptop, despite the extra weight."

You did read the title, right? The author wants a LAPTOP made with the motherboard of a desktop. Its still a laptop that will be unwieldy, costly, heavy, and not very heat efficient.When I did a preliminary price run down you are looking at around 2000 dollars versus my alienware and external graphic card costing me 1800, and I maxed out specs on the alienware and not the device suggested. Using two power supplies, high end graphic card (or two), a battery charging system, and a decent CPU will spike heat inside to high levels. The size alone will not make it practical since a standard power supply on the short side is still two inches, most cpu heat sinks get thick (around 2.5 to 3 inches), if you used a water cooling system it would be thinner but you would need more power from the power supply. Using a briefcase would not be large enough you would need something the size of this at the very least 11 In x 7 In x 4 In Aluminum Case but more likely you will need this http://www.harborfreight.com/tool-storage/tool-boxes/18-in-x-6-in-x-13-in-aluminum-case-69315.html and that will not fit very well on a airplane tray to use.

For all of these reason I belive this is not a good build idea for Ben.

Ah, when I talked about disliking laptops I was referring to myself. I agree that the build would not be a good fit for Ben, but for about a week prior to this post I was considering attempting a proof of concept version of this mod using various outdated parts that I have lying around. I also agree that this will be very impractical to use, but I am interested in doing it largely as an engineering challenge to myself. I was also looking at just running off of mains for my build since battery power actually does not matter that much to me. I understand why you are trying to dissuade people from attempting this build, and I agree that most of your points are perfectly valid, but I feel that in my case, purely as a hobby project this build is worth attempting, even if the end result Is going to be a little disappointing.