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Old 10-04-2007, 10:51 AM   #49
dinos22
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Re: Adding a 3rd stage to my 2-Stager: turn a Dual-Rotary to a Triple-Rotary!

By before
Thx guys

Today testing gave -122.2C unloaded... so, the first aim which was -120C unloaded (cf. first post) has been achieved.

We consider performing tests under load on Monday the 16th... with a X6800 or a QX6700.
so you think you will still get around -100C + under heavy load
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Old 10-04-2007, 07:14 PM   #50
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Re: Adding a 3rd stage to my 2-Stager: turn a Dual-Rotary to a Triple-Rotary!

I really don't have a clue... I hope to get about -110C to -115C.
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Old 10-04-2007, 07:20 PM   #51
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Re: Adding a 3rd stage to my 2-Stager: turn a Dual-Rotary to a Triple-Rotary!

would love to see a photo pictorial of your insulation methods to keep condensation under control @ -110C temps
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Old 10-04-2007, 11:18 PM   #52
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Re: Adding a 3rd stage to my 2-Stager: turn a Dual-Rotary to a Triple-Rotary!

can u buy these things as a 'kit'





ps... really nice set up, i only wish i had the skill to do something like that

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Old 19-04-2007, 09:00 AM   #53
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Re: Adding a 3rd stage to my 2-Stager: turn a Dual-Rotary to a Triple-Rotary!

Thx

Few tests have been performed since Monday. Luigi's first charges were very good... but we wished for coldest temps.

We get -115C loaded evap during Spi 1M with my X6800 operating between 5200MHz to 5250MHz and 1.81V DMM. Only 1 degree lost between idle and Spi 1M, and 4 to 5 degrees between idle and Spi 32M. AFAIR HP were = 15bars in 2nd, and = 3bars in 3rd.

It was quite good but not enough... (don't look at times, just testing here not benching )



Yesterday, we tried the cascade after a dinner with some friends, boblemagnifique, umbre_tombetoile and koda. Both 2nd and 3rd stages were severely overcharged so we get -109C loaded evap with bob's E6600 L630A at about 5.1GHz @1.79V.



Finally, we removed some R1150 from 2nd and 3rd stages today but weren't able to try it loaded because of a matter with the huge 3rd stage cp.

Last edited by before; 19-04-2007 at 06:20 PM.
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Old 19-04-2007, 12:14 PM   #54
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Re: Adding a 3rd stage to my 2-Stager: turn a Dual-Rotary to a Triple-Rotary!

wow very nice indeed
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Old 20-04-2007, 08:43 AM   #55
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Re: Adding a 3rd stage to my 2-Stager: turn a Dual-Rotary to a Triple-Rotary!

oh man now i understand the idea behind tripple stagers after playing with LN2

those temps are PERFECT
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Old 21-04-2007, 06:51 AM   #56
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Re: Adding a 3rd stage to my 2-Stager: turn a Dual-Rotary to a Triple-Rotary!

Thx!
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