Oh don't Rollie......I'm petrified enough as it is doing this.
So the latest news.....restarted the system with just gas in it and booted up the computer......again thankfully ok.......went into the bios hardware monitoring and saw the chipset was at -29c...so sort of confirms that it was as I thought...internally things are a lot colder than the external temp sensor is indicating...that's the sort of temp I was getting with my previous build and this pc setup.
So decided to go for it and introduce the liquid butane phase.......real scary stuff.....I just let it in a bit at a time....constantly checking that the chamber pressure was still negative......real scary watching that stuff start to lap over the sides of my mobo tray and progressively upward....over the chipset heat sink and I finally stopped transferring just as it was lapping onto the surface of the cpu heat sink.....I was just too scared to go any further at that time in case I have difficulties returning the liquid to the pressure bottle.
The liquid is like a boiling cauldron as it is permanently right at its boiling point which is being determined by the balance of temperature and pressure (negative pressure actually) It's so counter intuitive to see it boiling like that while there is a negative pressure in the chamber, you associate boiling liquid with high pressure production ....weird stuff .
I booted to windows just at default cpu settings (2700k)......I don' think temps are representative of normal use as yet as I didn't have the liquid right over the cpu heat sink it was just lapping at the edges.
Did a very quick Intel burn test on standard which gave +7c on one core and zero on the rest......but the purpose of this was really to see if there was any pressure build up in the chamber while under load......but it was still negative....so good there.
I'm now trying the fluid return procedure......so I have the cylinder in the freezer with the valve wide open.....I've turned the ac unit off so as the chamber warms and the bottle cools the liquid should be forced in the opposite direction back into the bottle....still monitoring with the web cam...here's hoping.