New to this, what can this SS do?

[hifiking]

I bought a used custom buildt SS and I don't know the specs.

Can you guys help me out based on this pics? Is it even possible without knowing everything else?

S.S. R507/Chilly1 evap (Evap@-40C med C2D@4GHz)

[runmc]

It's not quad ready. Your condenser would need to have more passes. Can you show us More pictures :D

[hifiking]

One more.

[Marvin]

you need a better condenser...

[hifiking]

Thanks for the advise guys, about the comressor, is that big enough for a quad? And if I get a local AC shop to put a bigger condenser on, how much of the tubing do they have to change? Or is it enough to just change the condenser.

[jinu117]

I would rather go to trusted local builder for such jobs. Might actually cost less to you as well as properly tuned which most HVAC/R people just don't have time to do it right (load testing can take hours for fine tuning) or will charge you more than getting new unit. (well at least in here in US, unless you are their friend, it would be).
I think compressor if I remember it right is about 1/4 to 1/3 hp. Which should have enough :)

[jinu117]

Eeek... http://www.the-acc-group.com/ACCDocs/99.pdf
Displacement and motor info tells me it is actually more like 1/5hp... :P
Can handle quad but not necessarily great temp.

[hifiking]

Well, there is 2, maybe 3 people i Norway that build SS. And they don't live in my part of the country, as far as I know at least.

But what should I look for when using this on a dual core? Since it is a bit small?

[jinu117]

Well, anywhere from -40 to -35c would be my first stab at it if it was tuned right on evap temp. Decently tuned could be down to -30c... below that... unacceptable to be honest with you. However, considering condenser utilized, I can't be so sure :P Why don't you give it a whirl first and see what it can do ? :) Now the temp I am talking would be dual priming or orthos at quite decent overclock and voltage ;P

[hifiking]

I tried my q6600 for 3dmark06 only, and at 1.49vcore and 4150 mhz in 3dmark the lowest temp was -31.1. And my roomtemp is 23C.

[n00b 0f l337]

It seems to have an SLHX, that might be helping with the load.

[hifiking]

What is a SLHX?

Ran wprime 1024 with the quad, min -29.9

With a 6850 at 4700 with 1.7vcore min is -40.2 over several hours of use :- )

[[XC] gomeler]

suction line heat exchanger, uses the cold suction gases to cool the discharge to help with condensing the refrigerant and such. Raises up the suction pressures a bit which isn't necessarily a bad thing in some cases.

[PhilippF]

As far as I understood it, in our units a SLHX does basically 2 things:

1. Change the cap tube from adiabatic to non-adiabatic. Which means, more flow through same length of cap tube because the refrigerant is more in the liquid state because of subcooling.

2. Subcool the refrigerant, which adds more capacity to it. Your CPU hast first to dump some heat to warm up the refrigerant before boiling it. Makes quite a difference!

The easiest "SLHX" is made by wrapping the captube around the suction line. to get better contact between the two you can solder the captube to the suction line. This is one of the easiest mods you can do with a Vapo LS to get it hold a quad.

Regards,

Philipp

[[XC] gomeler]

Can also use thermal paste in lieu of solder, works nearly as well albeit a bit messy. Good if you have to make adjustments though.

[killermiller]

What kind of solder do you use?

[[XC] gomeler]

I used my generic resin core solder that I picked up from Home Depot for next to nothing. Felt no need to splurge on expensive silver solder for wiring and such.

[PhilippF]

You can use soft solder as it does not have to withstand any forces. I use soft solder for water installations plus some soldering flux also for water installation (but must be cleaned after thoroughly or you will get the copper looking like a 100 years old in just 2 days...).

[killermiller]

I was hoping it wasn't 45% silver.

[hifiking]

So, I have been using this unit for a few benching sessions now, and I have two questions.

1. When I stop the unit to change CPU or something, I have to wait to the unit has reached roomtemp before it will start again, if I try too soon it chokes. It starts and stops violently after a few secs. Why?

2. It forms ice on the tubes inside, which falls of when I stop it and flood my office. Can I insulate the tube in question as much as i see fit?

[[XC] gomeler]

1) It's because the pressures within the system hadn't equalized and the compressor will not start with great pressure differentials between the suction and discharge sides. Typically takes 2-3 minutes to equalize.

2) Honestly the insulation looks like garbage, the entire suction side should be sealed up where no air can enter or escape. You can insulate up the entire suction side up to the compressor shell.

[hifiking]

Thanks, equalizing takes at least 30 min with this unit, even overnight one time. But it's at least normal to some extent.

So I should redo all the insulation that already is there. Well, I love to do things with my hands, so that was nearly the answear I hoped for .- )

[[XC] gomeler]

Wow 30 minutes? I find that hard to believe unless the capillary tubing is partially blocked and is impeding the flow, anything over 5 minutes would be "out of spec". In regards to the insulation, just grab some armaflex tubing and insulating tape and make sure everything is sealed up properly.

[jinu117]

It is possible.... believe it or not.
Since condenser is so tiny, what probably was done was to have extremely high condenseing temperature to increase capacity and overcharging system accordingly to get the load. The big thing probably is mostly suction accumulator to compensate for this. Wonder how long that unit will last...

[hifiking]

The comp gets very hot. But the air coming out of the unit isnt any warmer than from my watercooing, 30-40 C max. Which part will fail first, is there anyting else than the comp that can die?

[jinu117]

Well, compressor will die first.... how hot is comrpessor? (Also, the hottest pipe out of compressor temp (don't touch it... just measure the temp with something)

[hifiking]

I will measure the temps next time I use it.

[hifiking]

With my cooking thermo I got 44C on the hottest line out after hours of use, and the comp itself about the same. But I guess the real temp is closer to 50-60C on both. The feel so hot at least.

[jinu117]

Cooking thermo? 50-60c is actually not something to worry about at all :)
I recently saw compressor temp of 95c on someone's unit and almost knocked my socks off (didn't bother measuring discharge as it probably was even hotter).
Was that under some load or just idling? If it was under load, than you have proerly tuned system with low load design. Compressor WON'T likely to die.
If it is without load, we still have no idea :P
(and you do need to run it for an hour or so before actually getting correct measure on... overcharged systems tend to slow down compressor warm up due to lot of cooling coming back from refrigerant initially).

[hifiking]

This was after hours and still under benching a E6850 at 4600 1.7 vcore, so it was under load. Roomtemp around 18C.

But evap and CPU temp has a huge delta. Evap says -45 and bios says -30 at 1.7 vcore. And I belive it get bigger at load, cause the evap temp never goes under -43 during benching, 3dmark etc.

[jinu117]

Well just keep an eye out for temp of compressor. Honestly, none of those "benching load" are considered heavy load for us but if that's all you do... you are fine :)

[hifiking]

Thats about all the load I'm going to give it, benchmarking. Feel no need for orthos or folding when I'm using the SS :- )

Thx for the help :- )