2002 Honda Civic Ex --Worklog

**vat2010** · 11-02-2010, 02:50 PM

Good project.

Screen and PSU are mixed up in the post.

Noobie here, which program did you use to create the diagram?

**HiJackZX1** · 11-02-2010, 03:02 PM

Originally Posted by cla1067

I might do the 2 switches. It seems like the easiest route, but I'm gonna look some more and see what I can find, so far though I've only found this: http://www.amazon.com/Pulse-Timer-wi.../ref=de_a_smtd and not really sure if it would work.

UMMMMM, just use a regular switch and a regular automotive relay. It doesnt have to be a fancy relay.

**cla1067** · 11-02-2010, 03:55 PM

I'm an idiot and used paint. I think autocad or something would work a lot better. I was to lazy to install autocad and try to learn it, but wasn't to lazy to spend even more time in paint? Technically paintdotnet

**BERTMAN** · 11-09-2010, 12:51 PM

any reason youre going with usb 3?

**HiJackZX1** · 11-09-2010, 01:09 PM

Originally Posted by BERTMAN

any reason youre going with usb 3?

USB 3 is backwards compatible with USB 2. Its the future, why not go with it?

**cla1067** · 11-09-2010, 02:12 PM

Originally Posted by HiJackZX1

USB 3 is backwards compatible with USB 2. Its the future, why not go with it?

^ what he said. Also I'll reply later about the switch and relay thing once I finish it. I'm going to end making a delay on break relay.

Anyways to add on to that. This is what I am thinking about the hub. If you ran a usb 2 cable to a usb 2 hub and then plugged say 4 devices up to it then you are splitting the data speed by 1/4. If you run a usb 3 cable to a usb 3 hub and run usb 2 devices from it well then your just splitting usb 3.0 into 4 usb 2.0 devices (usb 3.0 is 10x faster then usb 2.0), so that should be as good if not better then running a usb 2 cable for each device.

Well if i'm wrong it won't hurt anything and worst come to worst It will just be future proofing my setup more.

**HiJackZX1** · 11-09-2010, 03:33 PM

Originally Posted by cla1067

^ what he said. Also I'll reply later about the switch and relay thing once I finish it. I'm going to end making a delay on break relay.

Anyways to add on to that. This is what I am thinking about the hub. If you ran a usb 2 cable to a usb 2 hub and then plugged say 4 devices up to it then you are splitting the data speed by 1/4. If you run a usb 3 cable to a usb 3 hub and run usb 2 devices from it well then your just splitting usb 3.0 into 4 usb 2.0 devices (usb 3.0 is 10x faster then usb 2.0), so that should be as good if not better then running a usb 2 cable for each device.

Well if i'm wrong it won't hurt anything and worst come to worst It will just be future proofing my setup more.

OMG, That part I didnt know. F$*k for my install that would have worked out much better. Currently my install has 31+ devices and sometimes they dont play nice because of all the devices I have. Also, there is more power supplied to the devices too when using USB 3.

Wow, thanks for explaining, you actually taught me something new. Only thing that sucks is that I have already bought my MoBo, so I may have to get a PCIe based USB 3 card. Thats only if I can find a good USB 7.1 Surround Sound Card.

**blafrisch** · 11-09-2010, 04:03 PM

Originally Posted by cla1067

If you ran a usb 2 cable to a usb 2 hub and then plugged say 4 devices up to it then you are splitting the data speed by 1/4.

Two things about this statement that I should clear up for you and other readers.

The data speed is not in any way split by 1/4. You are splitting the bandwidth 4 ways. Each device would only experience 1/4 the bandwidth if all devices were operating at full capacity. If 2 devices are idle and 2 devices are operating at full capacity then the devices operating at full capacity would experience 1/2 the bandwidth, not 1/4.
USB hubs must do a small timing recalculation with every piece of data incoming to it so if you had 4 devices plugged into a 4-port hub you would actually have slightly less than 1/4 the data bandwidth if all 4 devices were operating at full capacity.

* Reference

Originally Posted by cla1067

If you run a usb 3 cable to a usb 3 hub and run usb 2 devices from it well then your just splitting usb 3.0 into 4 usb 2.0 devices (usb 3.0 is 10x faster then usb 2.0), so that should be as good if not better then running a usb 2 cable for each device.

This is actually an incorrect statement. A USB 3.0 hub actually contains 2 hubs: a USB 3.0 hub and a USB 2.0 hub. When you plug in a USB 2.0 device it uses the USB 2.0 hub which incurs the same limitations of a standalone USB 2.0 hub as I had mentioned above.
* Reference

Sorry to be a buzzkill on your idea about the 3.0 hub with 2.0 devices but that's the way it's currently implemented. I'm looking forward to seeing more progress on this car. I really should post my newest work to here some time.

**HiJackZX1** · 11-09-2010, 04:47 PM

D@mn..... That was a buzzkill, lol. i will say this though, because he posted that post, he gave me the idea to see if there is a PCIe to PCI adapter. Basically I spent a lot of money on a Sound Card (PCI based) and when I replaced the MoBo it came with a PCIe x16 slot. Turns out they make adapters to use PCI cards in a PCIe slot. That saved me having to replace the card.

**BERTMAN** · 11-10-2010, 08:22 AM

i see youre gonna use 8g wire for +12v to the psu... is that necessary?
im currently using 12 (i think).
im only asking these questions because im in the process of moving my carpc to my new car, and im tweaking/fixing/adding to it.

ps- anxious for in progress pics