MachIIGT Shutting Down??????????

[pumbertot]

Ok got my holdown kit for S775.

so put the rig together.

8800gtx+mcw60 cooled by DDC+petras top+120.3PA.

QX6700 cooled by MachIIGT regassed to R507a with extra condesnor(modded by Berkut off XS).

Mounted everything and turned power on. Prommy drops steadily to -35C and PC powers on. Went into BIOS, saw CPU temp is -5C(normal for P5B-D+Quad+phase).

Evap temp was -36C and getting lower. It hits -39C then all of a sudden starts to gain temperature 1C every 1-2 seconds. Continues until it reaches -10C, by now CPU temp has risen and approaching 10C then whole rig shutsdown.

Ok I can accept the CPU temps as wasnt a great mount(hard with this homemade holdown kit) but why did the prommy do this weird behaviour?

I then tried just the prommy(not mounted) off a tripped PSU. goes down to -36C then just goes Idle and temp starts to increase.

Anyone can shed any light on this? Is the unti fooked? Closest person for repair is Kayl in perth and would cost me $100AUD just to ship it to him and I dont know for sure if theres anything wrong yet.

 

[fatty]

Have you tried flashing the firmware on the unit ??

Does it still run the mach2 software??

and last but not least it does sound like a leak but how long have you had the unit for and how long has it been playing up for??

and there are people in the uk who do repairs

 

[pumbertot]

Have you tried flashing the firmware on the unit ??

Does it still run the mach2 software??

and last but not least it does sound like a leak but how long have you had the unit for and how long has it been playing up for??

and there are people in the uk who do repairs

ahh I should update my location, I live in Sydney now in Oz.

yes the software runs fine, and I updated to latest firmware on ECT website.

This unit was used for 2 months after the regas/mods. Then it has been unused for pretty much 1 year. These problems werent there when it was last used in February 2006. It has since then made a long journey to Oz so I was worried it may have been damaged in transit.

But if its a leak how come it can reach the maximum evap temp and hold it for a minute or so before this happens?

Obviously I know nothing about the workings of these compressors.

 

[pumbertot]

the colour of wires on the USB plug are different to those on the ECT website. mine are white-green-red-grey-black. what is the correct orientation to the USB port?

also in trying to get the yellow connectorto mobo power) and blue/white(to case power) I pulled them out the circuit board accidently. can anyone tell me which pins they go into on the on/off 4-pin jobby on prommy circuit board.

 

[fatty]

Sorry was trying to look for a picture for you ok blue/white wires go to the two pins marked on and the yellow wires go to the two pins marked off

Ok as for usb all are different mine is wired white/green/red/black on the controller pin 1 is white my motherboard is wired the same way

Heres a poor pic for you as well

 

[pumbertot]

thanks mate all connected now. USB not important to test it. but need to soruce some dielectric grease first as im out.

btw do you guys recommend the heat plate or not for QX6700. most people say no but just wondered anything for it?

 

[fatty]

do you meen the heater pad at the back of the cpu ?? I personaly always use mine I have a stockish mach2 back plate on my unit but I have a chilly1 headed unit if you dont use the heater pad then you increase the risk of condensation

 

[pumbertot]

yeah that heater pad. i thought that with quad core you dont need it but if it reduces condensation risk I will definitely be using it. thanks.

 

[Wellcomef3-a]

Hey fatty, why would you use a stock Mach II back plate and heater pad on the rear of your mobo directly behind the cpu socket in conjunction with a Chilly1 head? :? I thought the idea was to first seal the area in question with non-conformal coating, then put a sheet of neoprene closed cell insulation and fix it there using the hold-down kit and back plate (not the Mach II version).

I don't see how condensation could occur behind the cpu socket if you did just exactly what I said above. After all, you have excluded all of the air using the neoprene sheet and it is the presence of air that allows condensation to form.

Please explain your reasoning behind this. Or are you just being very cautious?

Regards,

Peter.

PS. I hope you will still be giving us the benefit of your experience after you have relocated and settled down down under!