I'm going to try to reply to a lot of what's being suggested in one post, rather than reply individually as I did on the first dozen replies.
First of all, I really appreciate all of the feedback, from people who consider this a good idea and from those who consider it, well, lets just say questionable. I'll try to fill in a little more of the details here.
Just buy from Dell/HP/Lenovo...
I don't think this is a bad idea (see replies above). My initial look at prices seemed to indicate that I couldn't come near what I had in my budget going that route, which is one of the reasons I thought we would just build them. Some of you suggested that I could get better prices than I was seeing, so I have contacted some vendors and they are getting pricing together for me.
I'll let you know when I hear more.
Warranties...
I've always had good luck with the computers we've purchased (or built) and I would consider it odd to have major problems with a lab of machines during the first few years of their life. Maybe a hard drive will flake out or a power supply will go bad. So I'm not so concerned whether I'm dealing with the warranty from Dell or from ASRock.
Of these 30 computers, 25 will go in a lab setting and 5 "spares" will go in the library. When a computer from the lab dies, one from the library will take it's place until we can take a look at it.
The learning experience...
There are students who are into gaming, and they want to know more about how to build their own computers. They ask me at school for advice. They ask you here for advice. I generally tell them what I know and them point them here.
I'll let our students know when we are doing this and there will be a dozen or so who are interested and available. Last time we did this we spent the morning talking about picking out parts and the afternoon building computers.
Last time everyone put together a couple of computers (we worked in pairs where some students knew more than their partners). And I had a few friends helping them test and trouble shoot them at the end. It would be more efficient and less error prone if we did it in more of an assembly line fashion, but less educational.
I also have students who help with the day to day technology related issues that come up, some of them will be interested and available for doing this and some will not be. It's not like I (or they) have to pick to do one or the other.
Future proofing...
It seems like that was a poor choice of words on my part. What I wanted to convey was that I knew that the build I proposed was better than what I actually currently need to run the software that we are currently running. I was trying to answer people questioning why I was considering 8GB of RAM or an SSD.
These computers will see at least one OS upgrade, one or two office upgrades and probably an Adobe Creative Suite upgrade if I can find the money for one. Along with whatever else happens in the next 5 years.
Current machines...
The current machines are mostly adequate to our current needs, but they are starting to fail in normal ways (which is fine) and in odd ways that are hard for me to replicate. This is what I would consider normal for 6 year old machines and to me it means that it's time to replace them.
Here are the specs for the current machines in the lab:
- Rosewill Ebony RA-HG-M-01 Black Steel Ultra High Gloss Finished MicroATX Computer Case with 400W (Model:LC-8400BTX) Power Supply
- LG 22X DVD±R DVD Burner Black IDE Model GH22NP20
- ASUS M3A76-CM AM2+/AM2 AMD 760G Micro ATX AMD Motherboard
- AMD Athlon X2 4850e Dual-Core 2.5GHz Socket AM2 45W ADH4850DOBOX Processor
- Western Digital Blue WD1600AAJS 160GB 7200 RPM 8MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
- Crucial Ballistix 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory Model BL2KIT25664AA80A
I made some mistakes last time that I'd like to not make again.
- That case/PSU has been bad in just about every way a case & PSU could be.
- The Optical Drives were used very little. To the point where I'm not going to include one in this build.
- The memory is now considered poor. I've had problems with it, but Crucial replaces it.
Building X computers every year...
This is an interesting idea, but there are a couple of practical problems with it. One is that I would have a lab with 5 different kinds of computers in it. From a students standpoint this isn't necessarily an issue, but it would be more work to maintain. I spend half my day teaching and half of my day as the technology coordinator. It's not a big school, but there are about 110 computers to keep working and all of the various technology that teachers use. I'm currently updating computers on a 5 year cycle: PC Lab, Mac Lab, Teachers, Office, Misc. I'm not doing that because I think it's a good idea, but because that's how much money I have.
Current specs...
Based on advice I've gotten here and elsewhere, I am leaning toward this set of parts (assuming, of course, that I don't get some good offers from vendors):
PCPartPicker part list /
Price breakdown by merchant
CPU: Intel Core i3-4160 3.6GHz Dual-Core Processor ($108.99 @ SuperBiiz)
Motherboard: ASRock H81M-ITX/WIFI Mini ITX LGA1150 Motherboard ($68.38 @ Newegg)
Memory: Crucial 4GB (1 x 4GB) DDR3-1600 Memory ($27.99 @ Newegg)
Storage: Intel 530 Series 120GB 2.5" Solid State Drive ($68.99 @ Newegg)
Case: Lian-Li PC-Q01B Mini ITX Tower Case ($54.98 @ Newegg)
Power Supply: SeaSonic 300W 80+ Bronze Certified ATX Power Supply ($37.98 @ Newegg)
Total: $367.31
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-05-28 17:40 EDT-0400
Here are the reasons for changes:
- There are lots of people with bad experiences with low end SSDs. I think it would be best to avoid them if I can afford to.
- I've backed off on the 8GB of RAM to save some cost. I imagine I will add the other 4GB in a few years.
- I've been convinced that spending an extra $60 on an i3 is worth it, and as long as I can fit it in my budget, I will go on believing that.
- I went with a slightly less expensive motherboard.
- I've still got that stupid Lian Li case in there even though I know that my motherboard and case costs go down if I switch to an ATX or mATX form factor. I think that adds about $30 to the build (just guessing here).
Thanks again for everyone who has given this some thought. All of your comments have been helpful. I'll be spending some time looking at some of the alternate builds you've proposed.