Hephasteus

Ok. I'm old. I'm so old i used to overclock by soldering in crystal sockets and buying bags of crystals. I just did a new build and went from p4 northwood and nvidia 7600gs to AMD 5850e with onboard nvidia 8200. I ran the temp sensor software from nvidia and was getting 37c on gpu 47c on mcp (southbridge) and 37c on hard disk. The other day I removed the heat sink from cpu and gpu and flattened out the surfaces on kitchen counter with sandpaper and gave them a coating of thermal dispersant (it's a black coating for metal that is like a stain for metal. It doesn't paint over the metal but penetrates into it and makes for a more radiative surface). I still need to convert the GPU heatsink from using those little plastic spring tensioners to a couple screws and nuts that I can lightly torque without crushing the core into the chip and find the right tension for maximum heat transfer.

I decided last night to take down system and sawed off pieces of cooling sinks and glued them on the southbridge and even on the sound/lan chip. I used arctic aluminum so don't really know when it will settle in and provide maxiumum cooling but what i noticed freaked me out just a bit. Systems used to be seperated some on buses but today they are all so driven and directly connected to cpu AC currents that changing characteristics of anything changes everything.

1 super super tiny heat sink on the lan/sound chip and 1 piece of 3 rows from a thermaltake video card memory heat sink on my southbridge only dropped the south bridge from 47c to 44c but what shocked me was my hard disk temps dropped from 37 to 30 c even though the hard disk is run through the northbridge. But even more shocking was my on board GPU went from 37 to 34 celsius. I also run a killawatt meter on the system to keep eye on power usage and system used to use from 119 to 126 watts for monitor/system/sound and now it's down to 116 to 121.

The only chip on entire system that isn't heatsinked now is the codec and sound plug in sensing chip. I haven't hooked up the sata and set linux up on it yet but got this system so I could run windows in virtual machine cause i'm just tired of rebooting into windows all the time.

I just thought this was interesting though since there will be quite a time period on this new high k gate silicon where you will be mixing old school silicon with new high k gate silicon and it seems to me that temperature involved current rushes are happening at much lower temps than they do in p-type silicon. If you're going to overclock this new stuff you need to keep all your old school silicon very very very cold and focusing on single chips isn't going to work. It's all too interdependant now. These new capacitors seem to be necessary on this stuff now too because current and voltage is so tied to each other. Current causes drops in voltages and tighter regulation is necessary with change in temps from idle to full use situations.

Next I'm switching over to a pure DC system using this.
http://www.mini-box.com/M3-ATX-DC-DC...=8&category=13

Coupled with a 100 amp hour battery and 2/12/25 amp charger. I should have a freakishly tightly regulated cold system from which to start with. And a 5 hour Uninterruptable Power Supply to boot.

BradleyW

cool

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