Voltage Question?

eGoCeNTRoNiX · Post by **eGoCeNTRoNiX** » Wed Jul 02, 2003 8:18 pm

Hey Guys.. I've got this fan, some of you have seen it in the modding forum, and it says DC17V.... Will I be able to use this fan? I sure hope so! If not, I'm not gonna bother modding my case to accept it.. But I though I would ask the question about the voltage before getting out the dremel and cutting the case and modding a power cable for it.. LMK Thanx.. eGo

Sean · Post by **Sean** » Wed Jul 02, 2003 8:52 pm

I can't read it...

I would think so, maybe try looking up the specs for the fan itself, like starting voltage? To make sure it can start with at least 12v.

eGoCeNTRoNiX · Post by **eGoCeNTRoNiX** » Wed Jul 02, 2003 9:05 pm

Me hands are just too shaky! lol.. eGo

Sean · Post by **Sean** » Wed Jul 02, 2003 9:07 pm

Aw, I was just giving you a hard time. I forgot the

I'll give it a search and see what I come up with.

This page has HMK 3404 on it, not much help though... :-\

http://webpages.charter.net/ohlandl/959 ... Power.html

OOO, this'll be helpful

http://www.hosiden.co.jp/web/english/index.htm

look under DC Motors. I haven't found HMK 3404 yet, but maybe there is something similar?

I found this: http://www.hosiden.co.jp/web/english/we ... _motor.pdf

Doesn't have your model number, but it descibes it. I wonder why I don't see any info on yours?

eGoCeNTRoNiX · Post by **eGoCeNTRoNiX** » Wed Jul 02, 2003 9:17 pm

Any of this make sense to you guys? If I'm reading it right, it's referring to taking both a +5 and a +12 and adding them together??? I don't konw.. This might not be worth the hassle.. lol..

Deriving 17vdc from the power connector
OK, you have a 9595-3Px, fully loaded with RAID drives and memory. BUT you notice strange erratic performance after a few minutes. After checking, you notice (to your horror) that you have NO voltage (or not enough) from J28.
Just trot down to Best Buy and pick up the dual serial/parallel planar for $49.99 and pop it in? Or will you whip out your trusty 25W soldering iron and take charge of your own destiny? If you are of the adventurous type, read on!

>So if J28 does not have 17vdc present, can you come off pin 9 and pin 4?
Yes - sure. The Pin 9 is the unused -5V source (PS/2 don't use that - it is not even mentioned in the HMM). You pick the voltage preferably at the underside ... but ... if there is no +17V at J28 ... then there is something basically wrong. The +12V should be present anyways (the HD-motors run on it) ... if the -5V is missing then the PSU had "a bad day". Or the line is cracked on the board somewhere. This should be easy to trace down.

>That was my intent- how to derive an alternate source of 17vdc from the planar power socket...
Alternatively: pin 7 of the PSU-connector deliveres -12V, pin 3 +5V ... both add to +17V as well. Only need to watch the polarity. (Ed. Verify the polarity with a voltmeter/DMM. Do not assume anything with a 9595 dual serial/parallel planar. One bzzt! and you may burn something else on the planar. The Power Supply will be fine though...)

eGo

Sean · Post by **Sean** » Wed Jul 02, 2003 9:21 pm

I was just looking at that same article. Is it mainly covering the fan you have?

I can't make any sense of it, sorry...

eGoCeNTRoNiX · Post by **eGoCeNTRoNiX** » Wed Jul 02, 2003 9:24 pm

This fan.. That Connector it's talking about is also on this fan.. But I'm not one to go in and start crossing wires and $h1t without knowing what's gonna happen.. I'd be a little more comfy if I knew I could just connect the yellow and black wires to yellow and black on apower supply output and fire it up.. I'll just have to keep lookin' lol.. Thanx for the ad btw Sean!

eGoCeNTRoNiX · Post by **eGoCeNTRoNiX** » Wed Jul 02, 2003 9:28 pm

Check this out!!! I wish I could sell this stuff for this price.. I've got all kinds of this old $h1t here. But I know I can't get that kind of loot for it.. That's crazy.. eGo

Sean · Post by **Sean** » Wed Jul 02, 2003 9:34 pm

I've been looking for that fan for ages!!! LOL

Yeah, no problem. Google works so great...I'm seriously amazed. I have never used such a good search engine.

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