Easy Way to Silence my PIII 1GHz?

[karmasalad]

Well, I recently swapped out the original Antec PSU from my case with the Seasonic SS300, and the decrease in noise has been wonderful. But the problem now is that the whine of the HSF on my PIII 1GHz is driving me nuts.

Is it possible for me to just remove the fan, keep the stock heatsink, and mount an 80mm fan using the FB123 fan bracket? I have an extra NMB fan from SVC lying around. Will this be safe and adequate cooling? Or would I need a bigger/stronger fan?

I don't really want to go through the trouble and cost of getting a whole new HSF assembly for this old machine.

Currently, with the stock HSF, my CPU idles between 32C ~ 36C, depending on ambient temperature. Under load, the highest I've seen it go is 45C. However, I'll be converting this into a home server soon, so the computer won't be taxed much other than transferring files.

Thanks for any advice,
Peter

 

[Zepper]

What size fan is on there now? SVC has adapters to mount 80mm fans to just about anything - don't need that expensive arm. Take a look.
.bh.
:sun:

 

[karmasalad]

Originally posted by: Zepper
What size fan is on there now? SVC has adapters to mount 80mm fans to just about anything - don't need that expensive arm. Take a look.
.bh.
:sun:

I believe it's a 60mm fan right now; whatever the stock fan that comes with the retail P3 is.

Thanks for the suggestions on the adapter. However, the guy who runs SilentPCReview doesn't recommend them. Also, the price with shipping was comparable to getting the fan bracket from NewEgg. I think I might just try the bracket and see how it cools.

What is a safe temperature for a P3 1GHz at idle?

 

[Zepper]

I don't know about that. Those "aerodynamic" 80-60mm adapters look pretty slick to me and should reduce the "hot spot" effect under the fan hub. I'm going to order a couple of them, glue the 60mm ends together and put the stack between my 80mm fan and 80mm HS to see if I get any compress/expand coolant effect. I don't really need it since my CPU stays in the low 20s anyway, but it will be interesting to see if it works. For $5. what the hey...
. An adapter is $2.98 w/ first class mail shipping. I don't think you can beat that with the Zalman arm. You could even add another nice fan and still come out ahead.
.b.h.

 

[Acts837]

Get an GC68 or GC69 and a Panaflo L1A or a Zalman ZM-F1 from SVC. Lap the heatsink, use the new fan and you will be good to go. Real cheap option -- the $4.99 GC68 lapped with the 7 volt mod. on the fan that comes with the GC68.

 

[pelikan]

Bury it.

Your temps are so low I bet hanging a fan in front of that heatsink, if its really close to it will work. Or the adapter will work. Don't worry about adapters not being that great, because you don't need a high-performance option here.

 

[0roo0roo]

anything below 70c is safe. 80mm converters aren't bad, fans still loud though unless you get low rpm. any fan can be low rpm with speed controller. fanmate 1 works as a single speed controller, generally 3-4 bux. a fanbus would let you control all system fans.

 

[RalfHutter]

If he's using the retail Intel HSF an adaptor won't work because the fan mount is proprietary, it snaps on to the HSF and there's no way to attach a fan adaptor. I second the suggestion to get a GC-68 or GC-69 from SVC.com. The are very nice HSF and are dirt cheap. I've been putting them on all the PIII rigs I build for customers. A fan on a Zalman bracket + the stock heatsink would probably be sufficient too. You can run the PIII CPUs up to 70°C without hurting them so if you're idling in the low-mid 40°C range you'll be fine.

 

[hmsrolst]

Originally posted by: Acts837
Get an GC68 or GC69 and a Panaflo L1A or a Zalman ZM-F1 from SVC. Lap the heatsink, use the new fan and you will be good to go. Real cheap option -- the $4.99 GC68 lapped with the 7 volt mod. on the fan that comes with the GC68.

r

I also second this approach. P3 1Ghz don't require a lot of cooling. I ran one with a GC68 and an L1A at 8v and had idle temps a few degrees over ambient.

 

[karmasalad]

Thanks for all the great replies.

I decided to order the fan bracket and a fan mate. I'll try out some of the spare fans i have lying around to see if I can arrive at an adequate balance of temperature and noise.

If that doesn't work, I'll probably end up getting the GC-68/69 from SVC and mount an NMB on it.

Thanks again.