View Full Version : Modded Mach 2 GT, enought for Quad core?
barrymaldon
03-25-2007, 05:44 AM
Hi,
I just won a modded mach 2 GT on ebay which has been modded with a new condensor, chilly1 lineset/evap and 402a and was tuned for a load of 250w, is this going to be enough for quad core intel (when i upgrade) or will i need a retune?
thanks
Barry
Big SturL
03-25-2007, 05:52 AM
If it truly IS tuned for 250W load, then it should be sufficient.
barrymaldon
03-25-2007, 06:00 AM
pazza316 did it (well this is what i was told from the buyer), so hopefully it should be ok, and the unit was cheap so a retune won't be the end of the world as it has everything i needs for the load now.
pazza316
03-25-2007, 08:02 AM
Hey,
If I did it for 250 watts it is tuned for that. I have done several of these mods recently. PM me your MSN and I can let you know which one it is and what mods where completed on it.
Regards
Pazza
Clemmaster
03-25-2007, 08:05 AM
Is there any succion line accumulator in the system?
If he uses it with a C2D @ IDLE there will be a hard floodback :|
Blaster
03-25-2007, 08:43 AM
Is there any succion line accumulator in the system?
If he uses it with a C2D @ IDLE there will be a hard floodback :|
a well balanced system with a good evap might not have floodback or need a accumulator
barrymaldon
03-25-2007, 09:07 AM
This mod was done to it Mach 2 Mod, including the condensor (http://cgi.ebay.co.uk/Mach1-Mach-2-and-Mach2-GT-Chilly1-mod-86_W0QQitemZ330102239671QQcategoryZ101194QQssPageN ameZWDVWQQrdZ1QQcmdZViewItem?hash=item330102239671 ), any good?
thanks for the replies :)
I don't like his placement of DHC, ever builder i know space them a bit on each coil but also has it in line of air flow as it's ment to be cooled but meh,
Shame the photos on that ebay unit show it missing the lcd cover
Clemmaster
03-25-2007, 11:10 AM
a well balanced system with a good evap might not have floodback or need a accumulator
A system that is charged to carry 250w load with +28° superheat won't have any floodback @IDLE (30w max) with an entire insulated succion line??
n00b 0f l337
03-25-2007, 11:22 AM
The problem is at no load or idle, our evaporators can have as little as a few degrees of superheat. The liquid refrigerant begins to floodback to the rest of the low side until its all at the temperature of the refrigerant at that low side pressure. Then the only heat source is the compressor.
Blaster
03-25-2007, 11:32 AM
A system that is charged to carry 250w load with +28° superheat won't have any floodback @IDLE (30w max) with an entire insulated succion line??
are you talking of evaporator superheat? :confused:
the owner of this unit (http://www.xtremesystems.org/forums/showthread.php?t=116823) benchs with a qx6700, the unit has no floodback or succion accumulator
http://img410.imageshack.us/img410/6753/kriofm5.jpg
Gray Mole
03-25-2007, 12:11 PM
I agree Blaster.
A unit that is properly set up and correctly built for the purpose of high load, does not have to flood back when there is no load, and doesn't necessarily need an accumulator.
Heat transfer and suction volume.
There are times where it is not possible to attain the correct level of suction volume due to space constraints. That is one of the primary reasons accumulators are used, at least in our diminuitive systems.
The only 'issue' I've ever had with that Ebay ad, is the fact that it's called a 'Chilly1' mod but I can clearly see one of LD's evaporators, or at least an identical mounting system. If the mod isn't done by Chilly1, and isn't using a Chilly1 evaporator, why is it called the 'chilly1 mod'?
Like I said before though, if you have any issues with it, just drop a PM and I'll have a look at it for you. Hope it works well though, you sure got a good deal on it!
Gray
Clemmaster
03-25-2007, 12:30 PM
are you talking of evaporator superheat? :confused:
the owner of this unit (http://www.xtremesystems.org/forums/showthread.php?t=116823) benchs with a qx6700, the unit has no floodback or succion accumulator
http://img410.imageshack.us/img410/6753/kriofm5.jpg
I'm talking about superheat, the delta-temp between the end of captube and the succion connector.
Anyway, blaster did the owner test the system without any load? If you insulate all the succion line when the environment the liquid meet during the cycle is at the same temperature there's no heat transfert and then the liquide doesn't vaporize until it enters the compressor :confused: .
I've seen just once the liquide vaporizing just before entering the compressor (due to the heat conduction from the compressor itself to the succion line and believe me the system wasn't able to carry any load a those temperature .
barrymaldon
03-25-2007, 12:43 PM
Back on topic, i've pm'ed pazza and will be getting the details of what was done, and when i get the unit we'll see. I have heard some good things about his work :).
Thanks for the help Gray, will let you know when i get the unit, will need some help with the insulation anyway ;)
barrymaldon
04-03-2007, 09:29 AM
I got the unit delivered to me today, i needed to update the firmware which i did via the guide on extremeprometeia, everything seemed to be fine untill i restarted and then i got the message fan fail on the screen and the unit then promptly shut itself down. The temp got down to an indicated (for a mach) -81.