Has anyone made fan RPM sensors for Deltas?

[Xaeryan]

OK, I have a Delta fan with a 3-pin connector that I converted to a 4-pin power supply connector so that it won't damage my motherboard... would it work if I found an extra 3-pin connector (empty), spliced the fan RPM sensor wire into it, then plugged that connector into the motherboard without the power or ground wires? I want to try and monitor my CPU fan speed with it still using power supply connectors.

[{PMS}fishy]

Yep that works, and by the way my newest delta 80mm came just like that. It works great. Good Luck.

[Cooler666]

if your ears can stand the noise :eek: Delta's are great

[The Doors]

It works only if the fan go @12v, otherwise you'll loose the Rpm signal, like for example with the 7v mod ;)

[Xaeryan]

The Doors: 7 volt mod???
Well, I think the Delta 60mm are 12v... (???)

[The Doors]

Yes, they works @12v,
but if you connect the + wire of the Delta's to the 12v of the Power Supply & the - wire to the 5v, you'll got a tollerable 7v sound :)

[Xaeryan]

Hmmm. With that mod, is the fan still working full force? If so, how does it become quieter? And do you definitely lose the ability to use the RPM signal? Thanks.

[The Doors]

No, the fan will not work at full force, this is the reason of the less and tolerable noise levels, but I can confirm you, like many others here, that the temps will rise of few degree C, and for sure you'll lose the Rpm signal ;)

[Xaeryan]

OK thanks. Actually, I'm using the milder 30cfm Delta, which is a bit more tolerable than the 38cfm version, so I think I'll leave it and use the RPM sensor. Thanks again.

[The Doors]

You're welcome Xaeryan ;)
this mod is very good for the stronger & noisy Delta38Cfm, not for Delta30Cfm, especially considering that you're using a SK6 that wants a great airflow onto the fins, coz the copper tends to retain the hot more than the alluminium.

[Xaeryan]

Originally posted by The Doors
especially considering that you're using a SK6 that wants a great airflow onto the fins, coz the copper tends to retain the hot more than the alluminium.

yeah, I noticed that... my temps dropped by about 4-6 degrees Celsius just from switching from a 23cfm fan to the 30cfm!!!

[The Doors]

Like you can see in my signature, I'm using the same HeatSink with a Delta50Cfm (60x60x38mm) absolutly crazy @12v, and just tolerable @7v, so I would eventually recommend an high output 92mm fan with a 60 to 92mm fan adapter, there are some interesting discussion about on the Forum into the proper section, Cooling ;) What are yor temps @idle & full load now?

[BigRed]

get what im getting
the one at the bottom
http://www.plycon.com/fanadpt.htm
and this :D
http://www.plycon.com/delta92.htm
im connecting it to a rheostat so i dont go deaf ;)

[Xaeryan]

it's hard for me to say exactly what my temps are, because I am in a college dorm where the ambient temperature is never the same, and most of the time it is at the extremes (icy cold or very hot). But for the most part, here they are:

Idle 31-32 C
Load 39-40 C

Like I said, they change too much with the ambient here, I just ran a burn test and full load went to 43 degrees C -- during 3dmark it went to 45. Idle is 34 right now. That's probably the absolute max it will get; it's warm in here.

[BigRed]

Originally posted by Xaeryan
it's hard for me to say exactly what my temps are, because I am in a college dorm where the ambient temperature is never the same, and most of the time it is at the extremes (icy cold or very hot). But for the most part, here they are:

Idle 31-32 C
Load 39-40 C

Like I said, they change too much with the ambient here, I just ran a burn test and full load went to 43 degrees C -- during 3dmark it went to 45. Idle is 34 right now. That's probably the absolute max it will get; it's warm in here.
those are good temps, whats your voltage at?

[The Doors]

I have to agree with you BigRed,
those temps are good, and very good if the system is Rock Stable!

[Xaeryan]

Everything's set as it reads in my sig - I didn't think my temps were that good. Yeah, it's rock stable... it's survived many nights of full torture burn-ins. Actually, it will go a little higher "partially stable" (157 is good) --- only after an entire night of burn-in does it crash (and not always) at 157.
I think part of the reason it's so cool is because of the excellent case I have; the Antec SX1030B filled with 4 x 80mm fans.

[The Doors]

Well, at this point you need of a new HS fan, or another idea can be a blow hole on the left panel of the case that blows fresh air directly onto the HS, preferribly with a duct ;)