You need red and black, yellow is an RPM sensor. Red should be positive.

Some of those two pin connectors are made in such a fashion that you can jam a 3 pin connector on there and just forget it has a yellow. If not though, you'll need to do a bit of soldering, as I've not seen adapters.

Well, I can put it in this way:

Of course it needs to be the other way around. The little plastic bar prevents me from just flipping the connector. I could just break off the bar?
BTW, I was under the impression that yellow was 12V and the red one was RPM/optional.

dada wrote:

Well, I can put it in this way: […]
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Well, I can put it in this way:

Of course it needs to be the other way around. The little plastic bar prevents me from just flipping the connector. I could just break off the bar?
BTW, I was under the impression that yellow was 12V and the red one was RPM/optional.

Black is usually ground, and red is usually +12v.

It's DC, does it run like it is now? The fan might just spin backwards (and work less efficiently). I suppose it could also crap out sometime down the line, but I doubt it.

You could also break it off too, but that seems harsh on the old girl. Can you pull the plastic guide off of the motherboard? Sometimes they will slide out with some finagling, but other times you'll kill the connector completely. Give it a gentle pull and see what happens.

SavantStrike wrote:

It's DC, does it run like it is now? The fan might just spin backwards (and work less efficiently).

Nope, I did it once and the fan FRIED!
Twas some crazy old overclocking experiment back in my newbie days 😁

Shouldn't be TOO hard to just use another fan (preferably one with molex instead of the fan connector, or use a fanheader2molex adapter), or a different HSF altogether.
If you're unsure and want to experiment, test with an expendable (noisy or rattling) fan first 😉

If it needs to be on the connector the other way around, yes you could break it off. I'm just not sure if it will stay in the connector that way?

The female "pins" are easily removed from the plug by pressure applied to the exposed area of metal(on the side of the plug) for each pin, while pulling gently on the wire.

Went ahead and pushed back the little plastic guide. I didn't have to break it off like I thought. The fan now works fine after flipping the connector. 😀 Thanks for your help!

dada wrote:

Went ahead and pushed back the little plastic guide. I didn't have to break it off like I thought. The fan now works fine after flipping the connector. 😀 Thanks for your help!

Thats good news! And always a + if you test something out without anything breaking!

Hmm...a tidbit of information I just recollected. The oldest motherboard with an onboard fan header I ever saw was a Socket 3!
It's mentioned in TH99 along with the mention theres a fan header somewhere on the motherboard, but mentions it's present location is unknown.
If only us Vogoners could update some of the files there...
I do actually in my offline database, like undocumented jumper settings and stuff.

Tetrium wrote:

Nope, I did it once and the fan FRIED! Twas some crazy old overclocking experiment back in my newbie days :D […]
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SavantStrike wrote:

It's DC, does it run like it is now? The fan might just spin backwards (and work less efficiently).

Nope, I did it once and the fan FRIED!
Twas some crazy old overclocking experiment back in my newbie days 😁

Shouldn't be TOO hard to just use another fan (preferably one with molex instead of the fan connector, or use a fanheader2molex adapter), or a different HSF altogether.
If you're unsure and want to experiment, test with an expendable (noisy or rattling) fan first 😉

If it needs to be on the connector the other way around, yes you could break it off. I'm just not sure if it will stay in the connector that way?

Interesting. I suppose there are a ton of different designs to factor in when running things with reversed voltage 🤣.

And pulling the pins from the plug is a much better idea, so that was sage advice.

Tetrium wrote:

If it needs to be on the connector the other way around, yes you could break it off. I'm just not sure if it will stay in the connector that way?

You were right, it's not very stable this way. I didn't break off the plastic guide completely but I had to push it back a little. Guess I'll go out and buy some tape tomorrow and then I'll carefully try to tape it to the guide.

Theres also 5cm fans that you can hook up to a Molex. This was very common during the P1 and before age 😉

Well, taping the thing to the plastic guide wasn't a good plan. Just far too tiny. So I'm going to just buy a 3 pin to 2 pin adapter.

So I'm going to just buy a 3 pin to 2 pin adaptor.

Which is still not going to do you any good because the header on that motherboard is wired opposite of the modern standard fan header. Perhaps you should consider listening to the people who already suggested swapping the wires around in your existing 3-pin connector. Remove red and black wires from housing, switch them around, clip them back in, problem solved.

Old Thrashbarg wrote:

So I'm going to just buy a 3 pin to 2 pin adaptor.

Which is still not going to do you any good because the header on that motherboard is wired opposite of the modern standard fan header. Perhaps you should consider listening to the people who already suggested swapping the wires around in your existing 3-pin connector. Remove red and black wires from housing, switch them around, clip them back in, problem solved.

Or just use a Molex 😜

Old Thrashbarg wrote:

So I'm going to just buy a 3 pin to 2 pin adaptor.

Which is still not going to do you any good because the header on that motherboard is wired opposite of the modern standard fan header. Perhaps you should consider listening to the people who already suggested swapping the wires around in your existing 3-pin connector. Remove red and black wires from housing, switch them around, clip them back in, problem solved.

You're right. 😀 I was just really afraid that I'd break it but I tried it and it was far easier than I expected.

So looks like everything works now! Here's the tentative result:

Time to format, reinstall and search for drivers.

Damn, an FW900 and a first-gen AEK. That is a sweet setup. 😳

Yeah I bought the AEK from someone who was clearing out his attic, practically for free. 😀 Need to figure out if I can set things up so that I can use it on this computer, that would be perfect (it's connected to the Powerbook G4 right now, through ADB/USB adapter).

What game is that btw?

Tyrian 2000, fantastic game that was released open source a few years ago: http://code.google.com/p/opentyrian/
If you want to use Dosbox, google for the original which is now freeware.

Cheers! I think I already downloaded it not that long ago actually 😀

Course I won't be playing it in Dosbox though 😜