View Single Post
Unread 09-16-2003, 12:42 PM   #7
Boli
Cooling Savant
 
Boli's Avatar
 
Join Date: Apr 2003
Location: Blackburn / Dundee
Posts: 451
Default

I think its a Lian Li PC-76 I was thinking a ut getting one myself but I told myself not to be stupid and got myself a PC-70 instead.

I agree with the above comments that a better was to dissipate the heat would be the best approach.

You have two real solutions, improve the radiator... or improve the water blocks. Improving the water blocks would get the heat from the cores easier into the water but you will still need to get rid of the excess heat even of you did see lower temps it would only be temporary as the water tem.



OK improving the radiator, you have to look at several factors:

- The speed of the air entering the rad

So in essence making your fan run faster will increase the airflow and thus lower the temps. but that makes the computer noisy and no one wants that. sop we look at the other factors.

- Restrictions in the airflow

At the centre of the radiator a you have it now is the so-called "dead zone" the is where the hub of the ran restricts the airflow and thus the radiator isn't being actively cooled at this point. Moving the fan away from the rad about 1"-2" will compensate for this. This is called the shroud technique and is much favoured, as you do not need more powerful/faster fans, but you still achieve better temps.

- The temperature of the air entering the rad

Another favoured technique (and one I will be using) is to make sure the radiator draws in the coldest air possible through its fins. Many rads are mounted on the front of their case for this very purpose air but you can construct a "shortcut" to the air by a number of means. Even a fan on the top of the case pulling in fresh air will help with your temps but the best way is to "seal off" the rad from the rest of the case in a wind tunnel. turbokeu has a fine example of this



What I am saying in essence is that you don’t run out and get some new hardware every time you discover an irregularity, you find out exactly what you can do to improve the existing hardware and that way you learn more than if you always buy the upgrade.

~ Boli
__________________
1800+ @ 2247 (214x10.5) - STABLE, 512MB PC3700 TwinX Cosair RAM, NF7-S v2.0, GeForce3 Ti200
Parallel BIM, 120.1 Thermochill, Eheim 1048, Maze 3, Maze4 GPU, "Z" chipset, 1/2" tubing, PC-70: 5x120mm & 9x80mm fans.
Internet Server & second machine (folding 24/7): 512MB DDR RAM, XP2000+
Boli is offline   Reply With Quote