[Video] Attenuating a noisy Falcon fan

[Badwolf]

I've still very little soldering time, so what I can do quickly?

How about sorting out that replacement Falcon fan that sounds like a VC10 on a takeoff roll?

What's the most inelegant solution I can come up with?

Will I ever stop asking questions?

Will you click and find out?



BW

[JezC]

Interesting...I may well follow your example here as I'm getting tired of the noisy fan in my Falcon too!

It seems louder since I fitted the Exxos PSU in place of the original PSU too...but that may just be subjective

[TheNameOfTheGame]

Nice video. My stock fan is noisy also. I have an additional noctura fan on my ct60 which is basically silent so I always wondered if I could just disconnect the stock fan. Is there any reason to keep the original fan going in that case?

[Badwolf]

Nice video. My stock fan is noisy also. I have an additional noctura fan on my ct60 which is basically silent so I always wondered if I could just disconnect the stock fan. Is there any reason to keep the original fan going in that case?

Opinion's divided. The CT60 fan is likely only enough for the 060, but without the PSU in there, the heat being pumped into the case is much reduced anyway.

I don't see it hurts to have a bit of forced airflow around the Combel, Video and SDMA chips -- the expensive guts of the system. Whilst more is probably better, it's a trade off against one's aurally-influenced sanity.

BW

[Steve]

I don't think you need it... especially if you have a Noctua. Personally, on my ct60e, I used to have a fan - but one day I felt the heatsink and it was barely warm. So I removed the ct60e heatsink and re-instated the little fan at the bottom of the Falcon instead (My reasoning being: the DSP and DSP-RAM gets 2x hotter than the 060 CPU, so they need more local cooling) but of course, you can run both.

[TheNameOfTheGame]

Nice video. My stock fan is noisy also. I have an additional noctura fan on my ct60 which is basically silent so I always wondered if I could just disconnect the stock fan. Is there any reason to keep the original fan going in that case?

Opinion's divided. The CT60 fan is likely only enough for the 060, but without the PSU in there, the heat being pumped into the case is much reduced anyway.

I don't see it hurts to have a bit of forced airflow around the Combel, Video and SDMA chips -- the expensive guts of the system. Whilst more is probably better, it's a trade off against one's aurally-influenced sanity.

BW

Yeah, best to go with the side of caution. Your attenuation method is a good compromise to decrease the sound level a bit.

Can't recall, what were the values of the quad-resistors and the dual-resistors you used? Maybe edit the OP to include the parts used?

I don't think you need it... especially if you have a Noctua. Personally, on my ct60e, I used to have a fan - but one day I felt the heatsink and it was barely warm. So I removed the ct60e heatsink and re-instated the little fan at the bottom of the Falcon instead (My reasoning being: the DSP and DSP-RAM gets 2x hotter than the 060 CPU, so they need more local cooling) but of course, you can run both.

Well, my ct60 runs overclocked at 90MHz so I think the fan is a good idea for it considering how hard it is to find the 68060s nowadays.

But I agree, the mainboard needs a little cooling so the stock fan is going to stay in there.

[stephen_usher]

@Badwolf I'd still be concerned about the temperature with the fan slowed. I guess the next upgrade would be a temperature control with a thermocouple controlling the resistance.

[JezC]

@Badwolf I'd still be concerned about the temperature with the fan slowed. I guess the next upgrade would be a temperature control with a thermocouple controlling the resistance.

I can see this being one of those projects where you add a modern micro to control it which is more powerful than the original Falcon

[Badwolf]

Can't recall, what were the values of the quad-resistors and the dual-resistors you used? Maybe edit the OP to include the parts used?

Will do.

I started with 2x330, which was nice aurally, but I thought things got a bit too warm for my liking when DFB1 was in full flow during a test.

I halved the resistance down to 4x330 in the end. Maybe even went too far the other way, 3 might be the sweet spot.

BW