Case / MB Question

[daddog]

Forgive the quality of drawing. That was never my strong point.

Here is a simple diagram that pertains to my question.



The top drawing is what I have experienced before with the systems I have built over the years. The MB rests on the brass risers you screw into the case and then you screw the MB in to the brass risers with a paper washer between the screw and the MB.

The case I bought I can’t use brass risers. The case has little mounds or bumps that rise up and I have to screw into those. The MB is resting directly on the bottom of the case.

Is that OK???

[Irwink!]

I can't say that I've seen every single case design in existance but it's not anything I've seen before - not using the brass stand-offs. If you place the motherboard in the tray do the I/O ports line up properly with the backplane of the case?  Which case model? Have you checked the parts list?

[daddog]

HEC 6252 PRIME BLACK ATX mid tower w/585w power supply.

I/O ports line up fine without the brass stand offs. They don't line up at all if I try to use the brass stand off's. It is obvious they are not to be used and that is what has me stumped.

All the parts are there.

[TheZohan]

long as you dont have the risers hitting the motherboard where there is no hole you should be fine. if there is you may want to get some duck tape and put between the riser and board so it dont short out.

[AirFlyer]

Seems just like they are built in risers. Some cases do it but it's not like brass risers have been phased out, my Antec 1200 uses them. It's all about manufacturer preference I assume.

[TilDeath]

long as you dont have the risers hitting the motherboard where there is no hole you should be fine. if there is you may want to get some duck tape and put between the riser and board so it dont short out.

This is a good idea,  I use electrical tape on these cases.  I have seen a few like this in my time.  Place the electrical tape on the "bump", do your stuff, place motherboard, run the screws in.  It does not hurt to poke a lil hole in the tape to assist the screws in getting in and the tape not wrapping around the screw.

[daddog]

 

Thanks gents! I will do that. 

[llama]

Do be careful about pins on the underside of the poking through the electrical tape covering any bumps.

I had a client with a new whitebox machine that would randomly reboot. (I hadn't built it, BTW.)

The case had bumps instead of brass standoffs, and there were some bumps where there weren't screw holes. The system builder covered the unused bumps with electrical tape (good!) but unfortunately the PATA connector was over one of those taped-over pumps (bad!).

The underside of the PATA connector (and quite a few others) consists of many very sharp, needle-like pins. Over the course of a month, the pins were digging into and through the electrical tape, eventually contacting the metal bump and shorting out the system. D'OH!

I ultimately put a thicker piece of cardboard over that bump and then taped it down.

So do mind what components are going to be covering an unused bump.

-Warr

[Speed55]

If it's not to late, you might also consider using a dab of that liquid electric tape stuff on each bump.  I know after a while  electric tape can lose its stickiness due to heat and dust.

[daddog]

Thanks llama, Speed. I was careful about the use of the electrical tape. I am confidant it will be fine.

Just waiting for the DVD to arrive and I will boot it up. Should be later this week.