Page 2 - LN2/DICE Pot

Its time for me to do cycle. Need to rep Brian again

well a little update as I was in the process of setting up the DFI board when I noticed that over @ hwbot that this guy S.C.T. from Hardware Team Italy edged me out by 46MHz and had a better time by about a half a second. Funny thing was he was using a full modded P5B and from what I saw with the CPUz shot it appeared he was @ 1.7v on vCore.

From Mr.Hyena's knowledge I went out and picked up a good set of pencils to do a vCore mod on the board as the one I was using was not high enough quality of graphite.

If I am successful I should be able to edge him out as I have seen this chip post much higher and feel that if I had the proper voltage I could make it happen..

Here is a better Bios shot of my temps.



As you can see from the pic there is some water that was present when I removed the pot from the first run I did. I benched for about 5 hours, I had to apply a hairdryer to the board after this run as condensation had built up around the socket. None of it actually reached any components but this was the worst I have seen it.I have done much better w/ setup since then as to where I do not see this anymore.(Practice makes perfect! )



Here are some more pics




And just for kicks, I have been going through these little AS5 containers left and right, I have tendencies to use more than a grain of salt.....here is my solution.

I thought you were using Ceramique? Not sure if AS5 is the best for those sub zero temperatures. Also have you been monitoring your temps? Might want to get a thermometer and keep an eye on them. One last thing as a result you might not have to fill up that pot so much just keep it at a steady sub zero temp.

On ambient temperatures AS5 is better than ASC (AS Ceramique).

Link: here. Brazilian Review, but the graphic-comparisons need no language knowledge at all.

AS5 is alright for sub-zero temps too. Ceramique is usually recommended because it doesn't needs that "long" amount of time to for curing. Curing is that period, when you apply first time the AS5 and then it needs a ~150-200 hours until the silver particles gets spread over the way they should and offer the best heat transfer/conductivity for a few months. Therefore using sub-zero cooling at the very first time when applying AS5 is `bad` choice because it totally prevents "curing." That bad means a difference of a few degrees, 3-5C max.

If you still want to use AS5 and sub-zero cooling, then run on air cooling for 150+ hours straight or so; that's basically one week. Do a mild overclock but let it burn... burn! Ceramique needs no curing, AFAIK. That's why insane overclockers and benchers recommend and use Ceramique instead, they haven't got that amount of time to waste for curing. Curing happens after 30-35C degrees with Artic Silver 5.

Even though, the difference between uncured AS5 versus ASC would be around 1-2C degrees, nothing more.

About AS5's official specification:

Extended Temperature Limits:
Peak: –50°C to >180°C Long-Term: –50°C to 130°C

good info. Hyena

I have read that some argue that if you have an air tight seal that no thermal paste is even required.
As for the 3~5 degrees difference.....I know that if I had the properly modded board that could exceed my needs as far as voltages go it would be a huge difference in the end IMO.

But as of now w/ the P5W I can not even get the voltages that would put me up high enough to really worry about those few degrees. When I do bench the netburst chips w/ the DFI board I might actually get into a situation where the ceramic will be needed for maximum temp. efficiency.

@bball

I have been looking for the right Temp. monitor to see what my temps are under load and am seriously thinking about going with a UEi Digital thermometer.

The DTO150 is a durable, versatile and fast responding digital thermometer. Able to use three thermocouple types, value priced and it's highly accurate. With its backlit display, rubber boot, time stamp and wide temperature ranges, you'll have lasting confidence in your decision.

Features
• -328 to 2498°F (-200 to 1370°C)
• Dual display
• Backlit
• Time-stamped multifunction record
• Relative function displays temperature change
• Accepts type J, K and T thermocouples
• Data hold
• Includes oven clip and temperature probe
• Five year limited warranty

The best deal I could find was on eBay for $75
If you have any recommendations, It would be greatly appreciated.

Almost forgot.....

About keeping it full......
I am hoping that it will be different w/ the Core2 CPU's but man, the 805 & 640 were going through it like no tomorrow! If I did not keep it topped off at all times in a blink of an eye it would be dam near the bottom!

Ya something like that would work, you could also go to like home depot and see if they have any.

hahahaha.....I went there....they looked at me like I was crazy and told me that I would have to find somewhere that was involved w/ some type of HVAC work. They directed to me a local refrigeration business and they gave me the name of the business that they order from. In other words, I found that you can not just go and pick this up at your local "do it yourself" big box store.

Hmm thats odd... Well then ebay it is

BTW you gottan a usb flash drive to install gaim yet

My Presler 950

Hi Brian
great result
as you say it mine p5b dlx has the V-droop, V-core, V-ddrII, V-mch.
I have noticed that under liquid I improve until @1,66
nn I dare to imagine where volt can arrive yours cpu with 1,7 volt
nn sò that nationality you have but from me in Italy
dry ice nn it exceeds the -68° to empty
while under pi devout arrival to -35° -45°
as you make to arrive to -78° in bios?
I renew compliments for your result with D805 pi 1m
nn to think but that I surrender
excuse my poor English nn I know the language use the translator of google
Hi
Io N-Bello

Just to give you an idea of how I have been keeping the NB chipset heat under control on this DFI board.....






Forgive the lights.....CompUSA is going out of business and they were marked down to $5 each...

get over it Snod....

*edit*
This was as high as the board would allow me to go.
Seems for some reason that after 546FSB that the board stops scaling with clockgen.
Oh well........Hopefully the P5B will fair better.

That's awesome, I didn't know that this was popular enough for someone to start making this cylinders and sell and ship them. HOw long does the dry ice and LN2 last? I guess this would be pretty expensive to run all the time.

There would be no way to run LN2 or DI for 24/7, you would have to be constantly monitoring temps and adding more LN2 or DI to the pot in order to keep it cool enough for the clocks. Let alone most of the overclocks are barely stable enough to run some super pi, unless its a suicide run

There a couple of people that are starting to produce them for sale. While it is in small quantities, if you look around you can find them. Some tend to cost far more than others depending on materials and where it is made but you can find quite a deal if you research it.

Anyone wannna have fun with a 400mhz celeron?