Sprocket Redux

**lynx** · 11-24-2005, 06:16 PM

Originally Posted by gripper103.2

What liquid go's in the resevoir ordainary tap woter or what?

It often depends on water quality, in particular water hardness. If you live in a hard water area it may be better to use distilled or de-ionised water. It is usual to add an anti-bacterial/anti-fungal agent, and some people like to add a wetting agent too.

**clocker** · 11-24-2005, 06:33 PM

I always use distilled water with a touch of antifreeze.
My current supply of antifreeze (which is what I had left over from my "winterize the Z" project a few weeks ago) is a pale yellow- hence the vaguely "urine-like" appearance of the liquid.
Water has the best heat transfer properties of any easily available ( and non-toxic) liquid, so one tries not to dilute it too much.

Assuming that there is no mixing and matching of metals in the loop (i.e. aluminum and copper) the need for an anti-corrosive is minimal so the antifreeze is added primarily to inhibit any growth of algae, etc.

**clocker** · 11-24-2005, 08:47 PM

Not shown (mainly cause I don't know how to do it) is Aquamark3 which was run three times in a row just before the screenshot (so basically, every part of the machine was being stressed here).

I'm still amazed at the temp response of these a64 chips....the second I stopped Prime (which had been running just over three hours here) the CPU temp dropped to 22c.
Room temp is just under 70F (@20c) so my deltaT is very good (bordering on unbelievable actually, which is why software reported temps are meant to be seasoned with grains of salt).

Almost turkey time.