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Piggy back Deltas on a thermo engine. Interesting results!!!

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Slain

Member
Joined
May 15, 2001
Location
Woking (near London) U.K.
The results of my lastest meddling.
test bed:-

athlon axia 1GHz @1.38 Ghz indicated voltage 1.86 volts
[email protected]
Ambient temp 24C (amazing for the UK)

First I tried my Delta FFB8012 80mm 67 cfm
After 15 mins of seti I had a reading of 47C

Next I used my Delta AFB6012 38 cfm
After 15 mins of seti 45C

Hmmm Lets see what happens if you put the 80mm ontop of the 60mm
10 mins, a roll of double sided tape and some cardboard later (yes I did watch Blue Peter) I was ready to go.

After 15 mins of Seti I had a reading of 36C !!!!!!!!!!!!!!!!!!!!!!!!!!! 8)
*WOOOT* 9C temp reduction, only 12C above ambient achieved with a £15 themoengine sink.
My averaged fan speed for the 60mm delta had gone up from 6900 rpm to 8150 rpm !!!!
Maybe this is a way to overcome the poor performance of axial fans blowing against the back pressure created by the heatsink.

[edit] The no load temps are 24c ambient 24c CPU awesome :)
 
OP
Slain

Slain

Member
Joined
May 15, 2001
Location
Woking (near London) U.K.
*&^&%$$£^%$ CPU will still not go any higher than 1400 MHZ
1400 MHZ fine 1410 MHz fails miserably
OMG I might have to go back to watercooling at this rate!!!!!!!
 

Pitspawn

Member
Joined
Apr 25, 2001
Location
Essex, UK
I think this delta generation of fans is getting silly. If anyone is going to use a fan as noisy as a delta, they should seriously think about going for watercooling instead.

How much is a good watercooling system?
And I fear condensation, If I dont have a peltier, what implications will this have?
 

WyrmMaster

I'm a little teapot Senior
Joined
Dec 17, 2000
Location
Montana, USA
I just tried it on my FOP32 with a standard 80mm fan. Same results but on a small scale. Increase of RPM on CPU fan of about 500, and decrease of about 1C in temp. Not a lot more noise either.
 

Hoot

Inactive Moderator
Joined
Feb 13, 2001
Location
Twin Cities
If you can find two fans that revolve opposite of one another while delivering the same flow direction, they work even better. I paired up two 80mm run-of-the-mill fans that way and the improvement was significant. So was the noise as it went from mostly the sound of air rushing to a whine like the Deltas with the de-spiraling vanes.

Hoot
 
W

William

Guest
Hoot (May 29, 2001 08:48 a.m.):
If you can find two fans that revolve opposite of one another while delivering the same flow direction, they work even better. I paired up two 80mm run-of-the-mill fans that way and the improvement was significant. So was the noise as it went from mostly the sound of air rushing to a whine like the Deltas with the de-spiraling vanes.

Hoot

what about taping two YS tech 60mm fans toghether so you don't have the deadzone? Have you tried this, I am curious about how this performs.
 
OP
Slain

Slain

Member
Joined
May 15, 2001
Location
Woking (near London) U.K.
Just to add this is not the first time I have piggy backed fans, before I had pretty average results. It seems to me the fixed vanes on the 80mm add considerably to the cooling, the 60mm really seems to chugg on the straightened airflow.
Plus I think the thermoengine is suited to this because of its central core, I must be getting extra cooling due to the air blast hitting the die mount (where the L1 bridges are)
Looked at cluboverclocker web site today, their results show a t-bird 1.33Ghz @ 1.8v cooled by an OCZ gladiator + delta at 42C. I am still feeling smug :cool: that I can run a 1.38 Ghz @ 1.86 V at 36C with a thermoengine.
*head swells and explodes* hehehe