[Kal-EL]

Originally Posted by ny_driver

OK well after a fresh new batch of 70% antifreeze and water the chiller still goes below -30 C, just not when there is slush on the evaporator. Should get down to -45 or so by morning I'm hoping. Seems like I have hit a wall with my OC at ~4800MHz. I was able to boot 4765 the other day, but haven't been able to get 4800. The chiller is working the best it has though, so maybe with a little colder temps.

Awesome bro, it was just a matter of time before you figured out the ideal setup for your chiller. Maybe you'll see a dramatic drop in temps at the cpu this time.

[ny_driver]

Still waiting for the thermometer from Hong Kong. I could stick this old F probe in there but it's a lot of work to remove the block and all and I'm not sure just how accurate it is. EDIT: it doesn't even read negative when I stick the probe in the bottom of the chiller @ -10 F

I must stiffen up the gpu loop mix a little as it froze in the lines last night, but no slush on the evap today.

[ny_driver]

It seems that once the air gets out of the antifreeze it thickens up some or something, because my pump isn't moving as much liquid as before. I need to add some water I guess.

Here we go again.............

Only difference is I removed the submersible from the chiller so it wasn't adding any heat to the equation. Weird shit if you ask me.

Probably wouldn't ever have a problem with LN2 not getting my cpu cold enough to suit me.

[Kal-EL]

Nice work bro, never give up never surrender!

[ny_driver]

Dude with the coolant at -30.......the chiller can almost keep up with the heat from 4.5GHz/1.5v with the GPU loop in there.

In a 1/2 hour @ idle the coolant temp has risen less than 1/2 a degree. .....in fact I'm not even sure it has risen.....ahhhh I don't think it's gone up. It's hard to tell looking @ this regular outdoor thermometer.

Yessssssssss, I am so happy. 4.5GHz sub-zero racing. Everything seems better sub-zero. Gonna let it idle for another hour just to be sure.

[Kal-EL]

Originally Posted by ny_driver

Everything seems better sub-zero.

QFT!

[ny_driver]

OK it's OFFICIAL now!

I accidentally left the pump running all night, which not only limited the cooling ability of the chiller by a few degrees, it also caused a bunch of unnecessary condensation. So I broke it down and made sure nothing was wet before I started up.

The chiller cooled down another 3-4 C while I was working on the block. The block is 3-4 F right now @ 4.5GHz/1.5v......which is way sub-zero in Celsius.

EDIT: all zeros picture added Goal reached.

Sorry about the picture size, I think on a larger monitor than I have you could easily read the zeros.

[Kal-EL]

You run thru all the benches now buddy?

[Patch]

Sweet chiller bro.

Just want to chime in on the making your own LN2 question.

There have been some retail attempts at home LN2 making setups.

Problems:
1) They make it too slow to be very useful for our purposes. 1L/day doesn't cut the mustard when you consider that the stuff is evaporating while you're trying to make and save it.
2) Still expensive.
3) The energy costs of running it all day to make your 1L of LN2 cost more than buying 1 L of LN2.

Same problem with getting a big CO2 cylinder and making your own DICE. Still much cheaper to just buy the DICE.

[ny_driver]

EDIT: Just having some fun right now.

Benches are on the list for eventually. I don't really know much about benching yet. My new memory is shipping from Taiwan today, and although only 1600MHz cas7 I'll feel better about doing benchmarks with a good working kit installed.

Only benchmarks I've done are racing and seeing that the cpu now stays cold enough to run @ 4.5GHz/1.5v for many hours.

I gotta get my system set up better for benching. I plan to do a XP install, but I have to clean off that HD first........so how will I find time to race?

I guess while waiting for the memory I can find the time to do the OS install.

-------I just switched from air-cooling in June. I'm on my way to full blown addict, never fear. Benchmark running is inevitable.

Thanks Patch.