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post #11 of 19
Quote:
Originally Posted by ScaryFatKidGT View Post

Haha super technical, but exactly what I was thinking there are 2 or 3 things the make a laptop

1. Power, you don't have to powerdown to move it
2. Attached screen and keyboard, but atleast an attatched screen
3. Size, while not really a huge factor, something with a built in keyboard that was 5 inches deep wouldn't really be comfortable to use.

You could just buy a bunch of 18650's and make what ever battery you wanted? There like $15 a piece for good ones.

Personally id say a 47/4800MQ is powerful enough I'm more concerned with running a desktop GPU

1. I am by no means an electrical engineer, but a UPS + add-on battery was my idea for this. If it can link up with the OS and downclock everything and dim the screen when power is cut, that would be excellent. For this sort of thing I would consider 1 hour idle, 15 minutes under full load a good target. I'm not sure how feasible a super-long battery life is without it doubling as an IED. My laptop's power brick is rated for like 75W, and this system would be pulling maybe 250W, though likely at a higher efficiency.

2. Yup. This is supposed to fit in a briefcase or something along those lines with a screen and speakers in the lid. I'm thinking a metal cage in a shock-proof hard case, preferably one that can withstand a small explosion because this is my baby and nobody will hurt her, and then a padded carrying case like you see for laptops. At least a 720p panel, hopefully 1080p.

3. As long as my spine stays intact while it's slung over my shoulder, I deem it an acceptable weight. Depth could be an issue, yeah, but a closed-loop, thin-rad liquid cooler (Corsair H55 springs to mind) would be the optimal CPU cooler since the waterblock is so low-profile. Dual-slot PCIe cards aren't too big and lower-end GPUs (e.g. a 260X or 260 for my ideal build) are fairly short. I do want a mechanical keyboard integrated, but if a panel can flip out and act as a wrist wrest then it only needs to be ~7-7.5" to accommodate the motherboard and GPU. Alternatively, a keyboard that can lock into place but be detachable would be acceptable. The screen might force it to be bigger however.

Again, not an electrical engineer, but taking a couple laptop batteries, wiring them in parallel, and hooking them up to a UPS does seem workable. I'm not sure how safe it would be. Lithium tends to go boom when cells are ruptured.

You're no fun! Really, if you downclock, you should be fine. In my research to replace my 25W TDP dualcore laptop CPU, I came across a couple quadcore, unlocked models that would fit in the socket: 45W! That's a pretty good indicator of power consumption since solid state electronics easily convert electrical energy into thermal. I decided to go with the low-end 35W tricore CPU in the end though. Laptop CPUs are basically cut-down desktop chips anyway. It's the same stuff, but it runs slower so it uses less power and produces less heat. Remember that power usage scales roughly linearly with clockspeed and is multiplied with the voltage (volts = Watts / amperes). If you can cut the voltage and clockspeed in half, you'll use a quarter the power. If you can cut it in half with just 70% the stock voltage and clockspeed.
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post #12 of 19
Quote:
Originally Posted by CynicalUnicorn View Post

1. I am by no means an electrical engineer, but a UPS + add-on battery was my idea for this. If it can link up with the OS and downclock everything and dim the screen when power is cut, that would be excellent. For this sort of thing I would consider 1 hour idle, 15 minutes under full load a good target. I'm not sure how feasible a super-long battery life is without it doubling as an IED. My laptop's power brick is rated for like 75W, and this system would be pulling maybe 250W, though likely at a higher efficiency.

Again, not an electrical engineer, but taking a couple laptop batteries, wiring them in parallel, and hooking them up to a UPS does seem workable. I'm not sure how safe it would be. Lithium tends to go boom when cells are ruptured.

Tesla Roadster uses like 2000 18650's, they might catch fire but they don't blow up lol, I wouldn't even use it on battery power it would just be nice to not always have to power it down.
Edited by ScaryFatKidGT - 1/12/14 at 1:10am
post #13 of 19
Quote:
Originally Posted by ScaryFatKidGT View Post

Tesla Roadster uses like 2000 18650's, they might catch fire but they don't blow up lol, I wouldn't even use it on battery power it would just be nice to not always have to power it down.

Holy walls of text outside a spoiler tag, Batman! wink.gif Yes, it's my wall of, but whatevs. I suppose a single 6-cell laptop battery would be enough to let it enter sleep mode, but I plan on all SSDs for every mobile machine I make from now on. If it means waiting for a sale or skimping on capacity, then so be it. I do not trust mechanical HDDs enough to survive all that shock, especially not in a case I myself designed.

I would definitely not want to rear-end somebody while driving that car. It's still lithium. Sure, the reports of people crashing their Volts and then catching fire were blown way out of proportion (it happened a month later after not being taken to a mechanic) but alkali metals go boom and readily react with oxygen and water, both of which are extremely common in the air.
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post #14 of 19
Quote:
Originally Posted by CynicalUnicorn View Post

Holy walls of text outside a spoiler tag, Batman! wink.gif Yes, it's my wall of, but whatevs. I suppose a single 6-cell laptop battery would be enough to let it enter sleep mode, but I plan on all SSDs for every mobile machine I make from now on. If it means waiting for a sale or skimping on capacity, then so be it. I do not trust mechanical HDDs enough to survive all that shock, especially not in a case I myself designed.

I would definitely not want to rear-end somebody while driving that car. It's still lithium. Sure, the reports of people crashing their Volts and then catching fire were blown way out of proportion (it happened a month later after not being taken to a mechanic) but alkali metals go boom and readily react with oxygen and water, both of which are extremely common in the air.
But that's what I mean you could make a 9 or 10 cell or a 12 cell or a 20 cell what ever you wanted, or even use a portable 12v power supply.

I think the batteries are along the bottom of the car? They generally only blow up when they are severely over discharged and then recharged.
Edited by ScaryFatKidGT - 1/13/14 at 4:35pm
post #15 of 19
This project is less and less viable as:
Laptop CPU's are closing the gap between "laptop performance" and "desktop performance". No, laptop CPU's aren't 'as' powerful as desktop CPU's, but they're powerful enough to give power users the ability to perform tasks on the road.

Discrete desktop graphics are becoming an option for laptops equipped with PCI-Express ports or ThunderBolt ports.

You'd be much more rewarded if you were to build a laptop platform that has a discrete graphics card inside of it and the guts of a power supply that can power it. I plan on building something similar to a laptop case that has discrete graphics and a PSU inside of it. I want it to be easily disassembled for removal/installation of the desktop card and take advantage of the internal LCD. By doing this, I save on building costs and I can just keep it in my backpack or in my car and use it whenever I want to game.
post #16 of 19
Quote:
Originally Posted by TrollingThunder View Post

This project is less and less viable as:
Laptop CPU's are closing the gap between "laptop performance" and "desktop performance". No, laptop CPU's aren't 'as' powerful as desktop CPU's, but they're powerful enough to give power users the ability to perform tasks on the road.

Discrete desktop graphics are becoming an option for laptops equipped with PCI-Express ports or ThunderBolt ports.

You'd be much more rewarded if you were to build a laptop platform that has a discrete graphics card inside of it and the guts of a power supply that can power it. I plan on building something similar to a laptop case that has discrete graphics and a PSU inside of it. I want it to be easily disassembled for removal/installation of the desktop card and take advantage of the internal LCD. By doing this, I save on building costs and I can just keep it in my backpack or in my car and use it whenever I want to game.
I'm with you on the CPU's but desktop graphics are so much better/cheaper, and the whole PCIe/thunderbolt thing isn't really practical, I'm looking into it right now but you need about $250-$350 just to get the adapters and then all this stuff is just sitting in a pile next to your laptop.
post #17 of 19
Quote:
Originally Posted by ScaryFatKidGT View Post

I'm with you on the CPU's but desktop graphics are so much better/cheaper, and the whole PCIe/thunderbolt thing isn't really practical, I'm looking into it right now but you need about $250-$350 just to get the adapters and then all this stuff is just sitting in a pile next to your laptop.

Plus getting the top level GPU to go along with it is another $300. So, you're spending another 650-700 just to have a better GPU? And that's cheaper than buying a gaming laptop how? Most of those laptops that actually have the Thunderbolt port are already in the $1200 range, so you'd be better off buying a Sager with a 780M in the long run.

It's a cool idea, but impractical due to how much more powerful most laptop GPUs have become.
     
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post #18 of 19
Yeah, um. According to our AMD rep, only R7 240s and 250s are supported (well, he said "recommended") for hybrid crossfire. That's... Not good. Suddenly my idea has gone south. Kaveri Athlon? It's only negligibly better than Richland. 7850k + 250? That's 768 shaders, or 128 less than a 7790/260X. Welp. This sucks. At least they can hit 5GHz on air again.
Triumvirate
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For Sale: [FS] Z97 system: Xeon and RAM
$160 (USD) or best offer
CPUMotherboardGraphicsGraphics
i7-5775C ASUS Sabertooth Z97 Mark 2 Sapphire RX 480 (reference) MSI Low-Profile 750Ti 
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Triumvirate
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Osmium
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For Sale: [FS] Z97 system: Xeon and RAM
$160 (USD) or best offer
CPUMotherboardGraphicsGraphics
i7-5775C ASUS Sabertooth Z97 Mark 2 Sapphire RX 480 (reference) MSI Low-Profile 750Ti 
RAMHard DriveHard DriveHard Drive
Corsair Dominator Platinum - 2x8GB Crucial M500 - 960GB Samsung 840 - 250GB WD Scorpio Blue - 1TB 
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ADATA SP900 - 64GB Scythe BIG Shuriken 2 Rev. B PNY Quadro 600 blower Windows 10 
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ASUS VE247H - 1080p Gateway FPD1960 - 1280x1024 Samsung S20D300 - 900p, portrait Rosewill RK9000I - Cherry MX Blue 
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Rosewill HIVE 650W Riotoro CR1080 SteelSeries Rival 100 CyberPower 1500PFCLCD 
CPUMotherboardRAMHard Drive
AMD A10-7870K ASRock FM2A88X-ITX+ G.Skill Ripjaws X - 2x4GB @ 2400MT/s Samsung 840 120GB 
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post #19 of 19
Quote:
Originally Posted by Imglidinhere View Post

Plus getting the top level GPU to go along with it is another $300. So, you're spending another 650-700 just to have a better GPU? And that's cheaper than buying a gaming laptop how? Most of those laptops that actually have the Thunderbolt port are already in the $1200 range, so you'd be better off buying a Sager with a 780M in the long run.

It's a cool idea, but impractical due to how much more powerful most laptop GPUs have become.
Even a 760 is better than a 780M but, I think its more for Mac users sense they have crappy graphics and have had Thunderbolt ports sense 2011.
Edited by ScaryFatKidGT - 1/17/14 at 6:10pm
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