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Project: ITX Switch PC

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visbits

Member
Joined
Jan 20, 2009
Hi guys, I've got a 16 port switch that recently died. So I've decided to mod it into an ITX pc with a good bit of storage.

Specs of system:
Motherboard: Zotac 775 Nvidia 7050
PSU: FSP ATX-200-50PLB (FSP20050PLB) 200-Watt Power Supply
Ram: 2gb Crucial value 5300 2x1gb
CPU: Conroe E4600 2.4ghz Dual Core
Storage: 2x Toshiba 200gb 4200rpm 2.5" laptop drives, Raid1


Just wanted to make a very important note here, I feel its more than appropriate. I order parts from performance-pcs.com quiet often and every order has been smooth and precise. On the recent batch of parts for this mod, one of them was defective. I promptly took pictures and emailed them, I received a reply within the hour stating that a replacement has been shipped via first class postal service. I just wanted to thank the people at performance-pcs.com for being so good to me over the past years.

Thanks Guys! :)


100% DONE!!!! FINALLY LOL

1cfabfe97e217b5f13761bca45a683f3.jpg



On with the MOD! LOG
Here is an idea of the case size I'm working with, only limitation will be height.

ae3de863d36de418a8fb5fb0d28b160d.jpg



Let work begin!

Removed unwanted standoffs.
73f6dc9c43d27472a5f2cfca6471dad1.jpg

eb13892abf6e67df2c3f23defd1afb3c.jpg


Cut down the switches actual PCB and mounted the ports back on the front.

1a01e0772704452859bdcca0e8ff85f1.jpg


The motherboard will have a PCI-E 1x riser (flexible) with intel gigabit adapter. This will be re-traced directly to the uplink port.

Perfect fit!
97dc94f773356e71e9a11f19534856ec.jpg
 
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Got rid of the audio stack, going to use the front panel header for the ports any way.
16feb66b9d67df6a71c0e8830ba0529d.jpg


Theres a few pieces in those stacks.. I had to slowly peal/break away, and used toe nail cutters to clean it up at the board.
c31eead5a9fcf46fe8aa11d5b284a3bb.jpg


The psu arrived!
Sparkle 200watt Flex atx.
12v = 12amps
5v = 15amps
3.3 = 16amp

PSU stripped modded and ready to be installed.
ab28bd3e3be5faca3cb25538dff0722f.jpg

Cables will require modification and sleeving!

4887f1289e4ce2de414b27232fe8b8fc.jpg


Stole this for 25$
cd1a530837df6293bf7ee00903e7e6ec.jpg


573cf71168d9b0563ca6683c9879c149.jpg


Testing the psu to make sure its gona be okay.

Everything is within spec, the 5v is a little high at 5.10 but once the hard drives are in it should be down around 5.05 :D


Working on the PWM to voltage regulated circuit to drive the blower next!

d6671f528f4fbb7e449b2ebc352f5f8a.jpg



If you want to see it in action

http://www.falstad.com/circuit/

Import:

Code:
$ 1 5.0E-6 24.46919322642204 83 5.0 99
v 144 304 144 224 0 5 88.0 5.0 0.0 0.0 0.5
f 272 224 352 224 0 5.0
162 400 240 464 240 1 12.0 1.0 0.0 0.0
v 464 288 352 288 0 0 40.0 12.0 0.0 0.0 0.5
w 352 240 352 288 0
g 144 304 144 352 0
w 352 208 400 240 0
w 464 240 464 288 0
r 272 224 272 304 0 10000.0
g 272 304 272 352 0
r 144 224 272 224 0 100000.0
c 272 224 272 144 0 9.999999999999999E-5 0.07224759680712044
g 272 144 272 112 0
o 0 64 0 35 5.0 3.90625E-4 0 -1
o 2 64 0 35 10.0 9.765625E-5 1 -1


Stay tuned for more updates!
 
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I would like to, I don't think it will handle 2x laptop drives + the heavy blower and LCD that's going into it. What all do you have in your system?
 
Are you going to make some sort of ducting to go over the heatsink to direct the air over the PSU and then out of the case? I figure that it would help to keep the temps down and make sure that heat doesn't build up anywhere.
 
Thanks guys, the heatsink should be perfect. With the E2200 and no fan on the heatsink it idles near 35C :)clap::clap:).

I'm using the motherboards PWM header to control a mosfer which will control the high amp blower. I will most likely run the mosfet circuit to the fan at 7v. I can see no need for it ever needing 12v.

Thanks guys! :D
 
How much space is between the hard drives, and are you gonna have any fans blowing directly on them? In my experience, drives in tight spaces get hot quick and die much faster.
 
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