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n00b 0f l337
10-28-2005, 12:07 PM
I have a p5wd2 premium, its 955x chipset, how much heat does the nb and sb put out?
n00b 0f l337
10-28-2005, 07:14 PM
7 hours and not even a twiddle?
toledo
10-28-2005, 07:18 PM
i have never seen people using nothing more than the stock heatsink ...... so not much heat i guess , unless you volt moded your board .
harleybro
10-28-2005, 07:24 PM
Just to be on the safe side I stuck a 40mm fan on I had laying around. It never felt warm to the touch though from what I have seen. :)
http://img477.imageshack.us/img477/3329/picture16216no.jpg
The Stilt
10-29-2005, 04:33 AM
Intel i955X (rev. 81) Glenwood heat dissipation in normal conditions:

266FSB with 1:1 (DDR533) RAM divider.
MCH VCC = 1.5V
MCH VTT = 1.2V

Heat dissipation = 15W

That is the absolute maximum heat dissipation, that will be never reached in normal conditions.

Here is mine:

380FSB with 3:4 (DDR1000) RAM divider.
MCH VCC = 1.9V
MCH VTT = 1.52V

Heat dissipation = 34.31W

The actual heat dissipation is a bit higher.
Using "positive" ram dividers and tight memory latencies will increase the heat dissipation of MCH. The 34W heat dissipation is very similar to overclocked Dothan, so I highly recommend you to replace the original heatsink if you have a modded board.

----------------

Intel ICH7

The heat dissipation depends from various things.
For example how many USB devices you are using, etc.

With maximum devices supported attached to ICH7, the chip will never dissipate more than 4.5W of heat.

So no active cooling necessary.
[KoG]^weaZel
10-29-2005, 09:02 AM
Thank you The Stilt!

Another part that you need to worry aobut heat output from is the VRMs. That heatsink gets HOT. A little fan there wouldnt hurt either.
JoeBar
10-30-2005, 01:21 AM
^weaZel']Thank you The Stilt!

Another part that you need to worry aobut heat output from is the VRMs. That heatsink gets HOT. A little fan there wouldnt hurt either.
Or if u're using air cooling a huge hsf like zalman 7700Cu or Tt BT... ;)
IluvIntel
10-30-2005, 04:34 AM
It also depends on the type of case you house everything in and airflow inside it + ambient temps... ;)
wwwww
10-30-2005, 05:07 AM
The 34W heat dissipation is very similar to overclocked Dothan, so I highly recommend you to replace the original heatsink if you have a modded board.

Dothans seem to use quite a bit more than that once o/ced. I couldn't keep my 750 on P4P800se cool with an 80W peltier at 12V with the chip above 2.6GHz 1.5V, below that it's fine.

It's weird though, I could run my 745 24/7 at 1.7V 2.66GHz with a tiny chipset cooler and still keep it cool on the DFI 855GME.

They seem to dissipate alot more power on the desktop boards.


sorry lil off topic ;P
n00b 0f l337
10-30-2005, 07:29 AM
;)
So an 80watt tec should freeze my nb over just fine...
wwwww
10-30-2005, 03:33 PM
;)
So an 80watt tec should freeze my nb over just fine...

hehehe

why settle for 80W, go the full 226W and a nice cpu block :P


better still, move that container in harleybro's pic onto the nb :P
n00b 0f l337
10-30-2005, 03:52 PM
Cuase a 12v 80watter, on 5 volt line won't suck as much heat and may work just fine.
wwwww
10-30-2005, 03:56 PM
Cuase a 12v 80watter, on 5 volt line won't suck as much heat and may work just fine.

Oh, you were serious... :P

Well on 5V might not be enough given stilt's heat dissipation on load, a 15V 60W on 12V should be fine.
n00b 0f l337
10-30-2005, 05:10 PM
Bah. I'l get a 172 and then throw it to 12v instead of 24v.
[XC] moddolicous
10-30-2005, 06:11 PM
All I do is take the HS off, clean off with alcohol, apply some AS5 or ceramique if I have it. Usually stays a little warm without a fan. Thats on an old KM400.