Building Cheap Educational Computers

yahn

New Member
I'm flirting with the idea of starting a small business where I'll need a lot of computers. The computers won't need to run any computationally exhausting software -- Eclipse would require the most and that runs fine on my seven year old P4 with 756 MB of RAM. Also, these computers will not need Windows.

I'm able to easily build a lot of different configurations (including keyboard and mouse but no monitor) that would be fine for $200 or less. My biggest problem is that I can't find a decent case/power supply combo for less than $75 and I can't find a decent monitor for less than $150. So, my finished product (with monitor) always ends up around $400-$450 -- which is fine, but I want to see if I have better options.

Also, I can't decide whether to go AMD or Intel. With AMD, I can get AM3 socket 2.6 GHz Sempron's for $30 and those have the possibility to expand up to at least six core bulldozers in the future. With Intel, I can get a $42 Celeron at 1.8 GHz with the possibility to expand to Core 2 Quad in the future. It seems like AMD is a clear winner since the Sempron seems to be significantly more powerful than the Celeron and the future seems brighter also.

Anyway, the build that I'm thinking of using is this:

CPU: AMD Sempron 2.6 GHz
http://www.newegg.com/Product/Product.aspx?Item=N82E16819103944

MOBO: Biostar
http://www.newegg.com/Product/Product.aspx?Item=N82E16813138179

RAM: Kingston 4 GB
http://www.newegg.com/Product/Product.aspx?Item=N82E16820139046

HDD: Seagate 250 GB 7200 RPM
http://www.newegg.com/Product/Product.aspx?Item=N82E16822148699

PSU: Rosewill 200W 3.3 V & 5V / 180W 12V
http://www.newegg.com/Product/Product.aspx?Item=N82E16817182006

Case: Antec25
http://www.newegg.com/Product/Product.aspx?Item=N82E16811129098

Basically, I'm thinking that these systems will be able to last a long time and allow the option to add a halfway decent graphics card. I'm a little worried about the PSU, but the case seems solid to me. And, as I mentioned before, a Sempron is enough power for what I need (at the moment) -- that's the least of my worries. The motherboard seems solid as well.

The total (with keyboard and mouse and shipping) comes to about $250. The cheapest enterprise solution I can find is from Dell and that is the Optiplex 380 (http://configure.us.dell.com/dellst...d&c=us&l=en&s=bsd&cs=04&model_id=optiplex-380) for $325. However, the PSU and Mobos look sketchy (as usual). I doubt that I'd be able to put any graphics card using more than 20W in the Optiplex and it has a max of 4 GB of memory. It does come with Windows which is kind of enticing, but it seems like a much worse deal for me than the $250 custom machine.

I've been trying to build a decent machine for what I need for the past few days and beside the PSU (and I'd like the price to be $25-$50 less), I'm very satisfied with what I've been able to find. But, if anyone has any words of wisdom, I'd really appreciate it. I've always given up on building budget computers (I've never needed to before), so I'm kind of winging it.

Thanks,
 
CPU - where is your cooler? I think it would be better spending more to get dual core these date.
http://www.newegg.com/Product/Product.aspx?Item=N82E16819103903

Motherboad. AMD 770 don't have on board VGA!!! And you haven't choose video card!!!
Get a cheap AM3+ Mobo such that you can upgrade in future!!!
http://www.newegg.com/Product/Product.aspx?Item=N82E16813128504

HDD - don't pay $5 for shipping
http://www.newegg.com/Product/Product.aspx?Item=N82E16822136098

PSU - consider these instead.
http://www.newegg.com/Product/Product.aspx?Item=N82E16817151085
http://www.newegg.com/Product/Product.aspx?Item=N82E16817815007
 
Motherboad. AMD 770 don't have on board VGA!!! And you haven't choose video card!!!
Get a cheap AM3+ Mobo such that you can upgrade in future!!!
http://www.newegg.com/Product/Produc...82E16813128504

Thanks for the heads up on the motherboard. I totally didn't check to see if it had integrated video. That would have been bad if I'd have purchased that board.

With the CPU, I didn't include the heatsink/fan. But, with it, it's less than $10 less than the X II. So, as much as I don't need the extra power (ATM), I think that I'll just spend the extra $10 and get a way better processor.

For the PSU, both of those are rated pretty low on the 3.3V and 5V lines. I wanted to get 200W minimum so that I had the potential to get a 6 core in the future. They both would be much nicer if I added in graphics cards in the future, though.

Switching out the motherboard and CPU brings the total to just under $300. I'm starting to wonder if it's worth it to build these instead of buying the Optiplexes from Dell. I just wish that I could get it to under $250.

Honestly, I need barely any processing power at all. I think that the E-350 motherboard/APU combo would be more than adequate and I can get those for well under that price point. I just don't like the idea of being locked into a 1.6 GHz processor. If I'm only buying for the moment, I could just buy used P4 business machines for about $100 a piece...

Decisions, decisions =/
 
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