t800's small, cased, daily cascade ;-) | WORKLOG

[n00b 0f l337]

Can we see a load temp at 225 watts? Also can we then get a temp full load and oc from you T800 when you get it? I Think you might be underestimating the power of a quad core Pio.

[tim-]

n00b_0f_l337:


225watt load.

[n00b 0f l337]

Okay so now we just gotta know the full oc load of quad core temp

[piotres]

Hey, n00b that aren't only mine estimations but pure experiences from mine Friend from Warsaw who has tested one of mine cascades on QX6700 and then QX6850 .

And eg. that cascade :

225W dummy same like tested t800 cascade = -93.5*C
QX6700 around 4.3-4.4 Ghz 1.7v = -94*C the highest seen ever, even with 4x sp2004

So ...I just bet that 225W is enought .

Regards
Peter

[t800]

Received, tested and pics





175w load:



HX temp on load -30c

[n00b 0f l337]

Wait what?
Couple posts up shows -72.5 for 225 watts.

[Marvin]

Wait what?
Couple posts up shows -72.5 for 225 watts.

show me. That was a great job, IMHO.

[n00b 0f l337]

Post 102...

[t800]

Wait what?
Couple posts up shows -72.5 for 225 watts.

Well i decided re-test and:

room temp 24..27c

mins evap hx
0 -81,1 -31.1
5 -72,2 -29,5
10 -71,7 -27,5
20 -71,3 -28,4
30 -70,8 -29,0
40 -70,6 -27,2
50 -70,6 -27,9
60 -70,2 -26,4
90 -70.5 -26.4

loadtester same 175w

[n00b 0f l337]

Do you have the ability to test on 175? Looks decent though with only a 10C delta.

[piotres]

Looks like t800's Tenmars is reading few degresses higher temperatures than mine UEI and Voltcraft.

In mine house cascade goes to -85*C unloaded and -72*C @225W. HX also never goes up to -26*C , max. -29*C .

[n00b 0f l337]

Piotres ya might want to do a ice test and check your UEI, they often read wrong with two probes in.

[piotres]

No no n00b, I've measured evaporator temperature in that cascade with UEI and then Voltcraft K302 with only one probe attached . I know that's VERY frequent bug in all thermocouple about wrong readings with 2 probes . So I always measure with only one probe . Only for picutre I've attached two, and I'm sure read is Ok there too (not changed compared to one probe) .

Maybe t800 and I live on the another level over the see ? But so various that it makes around 4*C difference in temperature ?

[t800]

Do you have the ability to test on 175? Looks decent though with only a 10C delta.

You mean 225w? Well, i would have to order&switch one resistor in current loadtester to raise wattage to 225w..current tester is 3*100ohms in serie with 230v

Looks like t800's Tenmars is reading few degresses higher temperatures than mine UEI and Voltcraft.

In mine house cascade goes to -85*C unloaded and -72*C @225W. HX also never goes up to -26*C , max. -29*C .

I got unloaded -82c~, so there's same variation (3-5degrees). I will make ice-test on my tenmars and borrow another thermometer to see is there any difference.

[t800]

Some results and temps:

idle (evap -79c):


superPI (evap -78c)


Orthos (evap -74c)


seems that cpu is very bad overclocker ....only 4040mhz is fully stable.

Insulation works well, cpu -65c at 18h = no condensation problems what so ever ...maybe upgrading 2nd stage to R1150 somepoint

[t800]

imagelinks fixed

[Freddie123]

-41 under full load is nice. That'll be some cold gaming

[Clemmaster]

1st stage isn't strong enough for R1150

[piotres]

@Clem : can be too weak, but rather not . I see that with 225W when plate HX is around -35*C, R1150 in 2nd stage condense at 15-16 bara which is OK .