Hot air rises, but heat will be equally distributed throughout the base (or at least the part above the core), regardless of height. This is because the hotter regions of the base are still a solid, and cannot rise due to differences in density.
[Edit] What I was describing was a heatsink...
If the fan is blowing air towards the heatsink, the air first makes contact with the coolest parts of the heatsink, moving onto the center of the block afterwards. This is technically the most efficient flow, since convection depends on the temperature differential.
If you have the air being...
Having it blow over your motherboard is probably a better idea. That way it'll avoid letting the air get stale, and increase turbulence, which I think would improve the convection.
Correct me if I'm wrong, though.
If I've proven that my RAM runs perfectly at 250MHz, but I want to push my CPU further, is it unsafe to downclock it to 200MHz in one step when I'm switching to 5:4? What about pushing it back up to 250 from 200 if I'm unhappy with the results? I've heard the rule of thumb about incrementing...
That would be a completely useless mod; heatspreaders barely do anything as is. Don't worry about it. If you have decent case ventilation, that should be more than enough.
Do NOT spread it out before placing the heatsink on the chip.
The reason they tell you to apply a tiny glob and then squash it with the heatsink is so that air bubbles are minimized, thereby improving heat transfer.
Just place a small drop on the very center, place your heatsink directly...
Alright, I cleaned the old stuff off, applied some Antec Silver using the "rice grain" method, and reinstalled the heatsink. At idle, I'm getting about 1-2 degrees lower, and at load, around 6-7, so I'm pretty satisfied. I also ripped off the fan hole covers machined into my case with a set of...
I'm using a Zalman passive aluminum heatsink on mine, attached using the included thermal adhesive. So far I've been able to get my FSB to 250 on my 2.4C at 1:1, so it seems like it's doing its job pretty well. You might want to look into it...
After owning this computer for about a year and a half, I decided to overclock the processor. Before I go on, here are my system specs:
Abit IC7 w/ Zalman silent northbridge heatsink
Intel Pentium 4 2.4C w/ Zalman CNPS7000A-AlCu
Kingston ValueRAM (C3) DDR400 - 2 x 512mb (dual channel mode)...