New case, PSU from previous case and NO POWER!

[killercow]

I know something always will go wrong when I upgrade or change something and so far my record is at or around 98-100% of the time. This time I got a new Chieftec case (http://www.newegg.com/app/ViewProduct.asp?description=11-125-220) (the one in the link) and I switch everything from my old case (including the PSU). I believe the PSU is 350 watts, it may be 300 I forget. I install everything; optical drives, mobo, processor, HDD, etc. and connect all the USB wires, power wires, and cables. Then I hook up the power and press the on button. and said, "LET THERE BE LIGHT!" Guess what ... no light. No LED's no nothing. I check to see if I hooked up the on/off/reset switches correctly and they were. In a previous thread I saw someone had no power and all they had was their JCMOS jumper in the wrong position and it fixed it. The jumper is in the correct place. I did check to see if, on the back of the PSU, the switch was set to "|" onstead of "0" and it was. I hope I didn't damage anything in the transport process (IE. mobo, PSU, ets.:eek: :eek: ) There are a few more case fans connected and some of those continuos connections of fans have gotten long. Can the PSU not handle it? Or did I do something wrong? Any help?
:eek:
THANKS!!!

[killercow]

I was just thinking a power surge, static/electric shock, and just recently saw in a post by Budfred magnetic touch/shock. There couldn't have been a power surge, nor do I remember being shocked and I did touch the case every so often (every other second). Magnetic touch/shock. Will that do anything? I don't believe the screwdriver nor the pliers that I used were magnetic.

[Budfred]

Magnetic factors are not likely to effect your power supply. It is more likely that something got messed up in the transfer. I know you said you checked connections, but I would try again. Also, what is the brand and rating on the 12 volt leg of the power supply and what is the total wattage? It is possible that the PS just can't handle the load, but it should at least show turning fans and such.

[killercow]

Ok...well these past 3 posts were usuless and I solved my own problem but now I am asking why. I read somewhere in my mobo manual that if the USB wires aren't cennected correctly then it can do stuff to your system. So I noticed that in my previous case and mobo upgrade I never had an over current pin. In this new case I have an overcurrent pin connector. So I plugged it ALL in and it wouldn't turn on so I unplugged all USB wires and it turned on. Then I plugged all of them in EXCEPT the overcurrent and it turned on still. Any reasons why?

[gwallen4]

It's a good idea when building a system to test it as you build, adding components one at a time to make sure they work.

Start over. Disconnect everything except the motherboard including drives, video, other cards, etc. and see if it will come on. Add things back one at a time to make sure they work.

If it won't come on, get back to us.

[Paul Komski]

Case and Mobo manufacturers have made this an easily confused area by having no single standard. Quite a few mobos have been fried as a result.

http://www.frontx.com/cpx108_2.html describes just some of the combinations. Gigabyte mobos are even more "non-standard".

Gnrd-Shield/Over-Current seems to never be mandatory - but as to why your connections to the "Over-Current" mobo header pin (10) caused such a problem is unclear. Did this wire connect to the metal surround on the front usb connectors - or was it something else maybe? - or indeed could there be a short somewhere.

Some "sparky" may be able to explain the difference between ground shielding and over-current protection - or are they interchangeable terms perhaps? Is the shielding a mechanism for shielding the system from overcurrent or is the term used to describe electromagnetic shielding as in a coaxial cable?? Just interested to know for sure.

[andyswork@beci.net]

I agree with Paul, there should be standards for all boards and cases.
This can and will give you fits.