Its not cool, but underclocking!

hogfather

hogfather

hogfather

Soldato
Joined
8 Jun 2004
Posts
3,074
Location
Sarrrf London
Hi guys back again!

I've been in here before regarding my antec aria / xp2000 system. Basically, the old girl is running 57 C idle, up to 65 load.

Got a silent (but usual rpm) akasa hs+f, 1x akasa amber 80mm and 1 x 60mm Silenx fans all at full 12 v goodness.

So basically she's running HOT! And there's not much more I can do because I want it lovely and quiet, and as the case is tiny temps will be high, but not this high. The only other fan I could replace is the 120mm jobee in the psu - its quite loud and honestly it barely pushes any air at all!

So on my old board (k7s5a) I could bring the cpu FSB from the 133 down to 100 to give me a clock speed of 1215mhz. Given that I'm not gaming these days, this is now a viable option. Will it reduce heat much?

Also 1 problem - the bios doesnt allow fsb changing. Its an Asus k7S8x-mx micro atx board. I was going to try doing it through Clockgen, but the board isnt supported.


What are my options for underclocking? Or is it not worth it in terms of reduced heat?
 
It used to run at 45 idle in the old case, so I'm a little concerned - that was with stock heatsink!

James, is the akasa bad? Damn. Only cost a fiver I suppose. Would the stock one be any better? its smaller, so airflow would improve - at the mo the cpu fan is about 1mm from the bottom of the psu - with only half the fan clear.

Obviously that's the problem, but I can't move the psu or board so.
 
No voltage options. All I can change is Ram:cpu ratio :(

But I would change that to give 1215mhz, but sadly there isnt an option to make the ram go at 133, cpu at 100 (4:3) only 3:4, 1:1, auto etc.

Case is brand new, but the aria is tiny - I've got a 60mm cos its the only size that will fit in the pci slots gap at the rear.
 
The xp2000 palomino is just about the hottest athlon xp they made, but even so! I'm reluctant to cut holes in my case really, I don't have the tools or skill!

I've a 120mm amber akasa fan on order now, so that'll go in the psu to aid airflow.

Thanks chaps, wil report back!
 
I haven't reseated it, no.

I've got some Arctic Ceramique sitting at home unused as the Akasa had some gloop on it already, and i didnt have any stuff to remove it with.

I'm thinking of going back to the stock heatsink, reseat it using the ceramique and with the stock sink being physically smaller, getting heat away will be easier as the fan isn't blocked so much by the cpu.

Sound ok?

I really didnt *** to reseat the heatsink, Socket A HS application is a terrifying experience. I don't know how it all doesnt just break! It does mean I have to take the entire PC to bits though :(
 
Alreet boyos,


I've opened up the psu. Warranty now void so now going back!

The fan in the psu is a 120mm with a 2 pin connection - red and a black wire. The akasa amber 120mm I'll be replacing it with is 3 pin. How do I go about connecting it up?
 
For sure I'll take some pictures bruv. I'll upload em around 8ish tonight.

I've ordered a few 3 pin to 4 pin converters for my fans - so even if I'm too retarded to rewire this fan in the psu, I'll just route it out of the psu and connect up to the molex. Its all about the backup plan!

I've not got the tools to drill holes really, though I think it would help. I'm going to see how it all fares with the mesh still on the rear, if it needs removing, lo it shall be done.
 
Cheers mate, believe me I was crapping myself next to those badboys.

Luckily it was just a case of unplugging the fan plug. I think I'm just going to bypass the psu plug and take it out of the side of the psu, so there's no thermal throtling in effect on it. Also then there's no messing with 2 / 3 pin conversions. And I stay away from those damn capacitors.

I'm also going ot look at mounting the fan at the front of the case, instead of the rear. Will report back.
 
And lo, I have returned.

Amber is instaled in the psu, and its pushing more air, but around the same noise level sadly. Little bit annoyed about that, but I suppose if I do bypas the thermal throttling antec provide then its going to run at full whack.

CPU temps are still around 58-60 idle. Gah!


paradox I would defo recommend if you do the psu fan mod, you should make those holes. I think the problem is that the amber in the psu just isnt able ot suck enough air out since the holes are too small. If I had a dremel I'd do it, but I don't sadly.

I didn't plug the amber into the 2 pin in the psu, I just took it out and attached it via a molex converter. Also discovered the 9700 pro fan is actually quite loud, which I didnt think it was previously.
 
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