big fan, big difference

[unacceptable_risk]

Here in Brisbane, weeks of 36humid degrees celsius + are not uncommon. It takes it's toll, I have the broken monitors and underclocked athlon 1600 to prove it. Two monitors in three days sets a pace my wallet can't keep up with.

So, down to my last monitor, I have installed (read; placed on top) a single 100mm server style fan. Problem completely solved.
It's actually cool up there, cooler than neutral.

And then the case, Two 80mm fans in 4bay tower.....not cutting it.
Out with the cdrom and removable hd rack, in with the 100mm fan. Right in the front of the case, under the remaining cdrw.

This dropped my cpu temp by at least 7 degrees C. A thermaltake volcano 6 gave 2 more off and I'm back to comfortable.

With this in mind, I would like to advise anyone in a hot place to cool their monitor if they want it to last. And also ask for suggestions on how best to power these fans? (they currently have they're own plug pack transformers.)

Water soon.

[Drake]

Why stop at fans? A window and a few LEDs (http://www.pimprig.com/modules.php?op=modload&name=mediaGallery&file=index&do=showpic&pid=677&orderby=dateD) might look nice.

[unacceptable_risk]

I do have a small blue 12v neon and lots of little holes in my side panels if that helps :rolleyes: But I need a way to power that effectively too. At the mo I use a 4amp car battery charger.
not very convenient/pretty/efficient.

Any thoughts about aux power supply?

[Farabomb]

If the neons are 12v you can power them off the computers PSU.

[unacceptable_risk]

thats what I would like to do. With the fans also.

Neither of these devices were interested in firing up on a few different AT style power supplys that I tried them on. I had assumed the current was insufficient.

I have a multimeter but lent the probes forever, will make new ones this week.

Perhaps the newer 300w+ atx unit will do the trick.

Thanks for your thoughts.

[gntlmn]

To use the switching powersupplies you will need to place a load on them to similate a motherboard then they will power up. I am not sure where you could buy them in Australia

[Drake]

A hearty :D:DWELCOME:D:D to ya, gntlmn! And a very merry Christmas as well :santa2:!

[unacceptable_risk]

Thanks gntlmn,

That would certainly explain some things around here. I knew that the atx psu needs to be switched on by one of the cables going to MB, but was unaware that a load was required for full functionality. I assume that would hold true on the older AT psu with its external power switch.

Can you confirm this ?

And can anyone suggest a suitable way to simulate that load?
Besides the obvious plug in a mobo scenario of course.;)

:2guns: :confused:

[Drake]

On the ATX connector, if you connect two of the wires together the PSU should work. I cant remember the wires, but pin 14 and ground come to mind... I would double check it, though.

[Farabomb]

Getto but you get the idea :D

[unacceptable_risk]

Thanks guys,\

So with that in place PSU powered up and running,(providing power to an 80mm case fan happilly) it should by rights be capable of powering up a larger 120mm server style fan?

because it does'nt, for one reason or another.

Currently it is happily running from a plug pack transformer, rated @ 500MA the other is on similar pack but 300MA.

The fans areNidec Beta V TA450DC 12v.dc rated @ .28 amp

the pc power supply should be powering them up, shouldnt it?

I have tried 3 or 4 different psu's that all seem to work otherwise.

Ponderous, Oh the blue tube that i have didnt want to go from the psu either. should it? It is sold as a car accessory with a car lighter plug on it.

All thoughts welcome.