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Phase Change Owners - Page 2

post #11 of 13
I'm running a Opteron 175 Denmark w/ VapoChill LS at -48C, CPU runs at -8C at load, -19-22C at idle. My only problems that I've had are that in installation, you need to be very careful with the case mod and the evap hose - there is a temp sensor in the hose, and if you pull or stretch the hose a bit too much (i.e. tower case), you'll break the sensor, thus making the system inoperable. A call to Asetek will get you a new sensor - they are very accomodating, but not overly speedy, so word to the wise and don't pull the hose.

Also, a good friend told me that certain AMD's have a cold bug in the memory controller - there is a serial build number that will indicate whether you have one of these or not. I don't recall what he said was a good one or bad, as I'd have to take my CPU out to check it, and well, once you get it installed with all that heat goo on the CPU, forget taking it out and checking it. You should check the boards and google as I'm sure it's well documented. I problably have this bug because if I leave the PC idle at -20C for more than 10M or so, it tends to lock up in Windows. I haven't overclocked the CPU more than 3.0Ghz yet, and I hope that it'll subside once I put more current into it.

The last issue is the worse one of them all. It's related to the Chill Control board that comes with it. IF you have a DFI Mobo, then you'll need to NOT fully use this board as I'm told (and read) that it's got compatibility issues (see asetek's tech forum for workarounds). My issue is that once in a while when you power it off, it spikes the electrical circuit it's on, thus flipping everything on it - I have a UPS and line conditioner and a power surge and it doesn't help. It will reboot all my obther devices on the circuit including my router, WAP, and servers that are also attached to the circuit. The circuit is a 20A wall circuit in a 10x15 room, so only way to get around it is to run an extension cable from another room just for the Vapo.

Hope this helps.
post #12 of 13
Quote:
Originally Posted by dmhnc
Would some of you post your temps and your likes or dislikes on your phase change units. Give me advice also that you think would help me in deciding what to buy. I'm planning a whole new rig as soon as AMD releases their new socket and the 7900 comes out. I plan on SLI and want to cool them as well as the cpu, thanks.
Have you thought about getting one of the new Crossfire boards? They're breaking OC records everywhere and have a TON of OC options in the BIOS. (more than Nforce4)
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel 2500k Asus P8P67 Galaxy GTX580 8GB G Skill Ripjaws 
Hard DriveOSMonitorKeyboard
Intel 80 gb SSD, Raptor 150 Windows 7 Home Premium 24" Samsung LCD Saitek Eclipse 
PowerCaseMouse
PCP&C 750W Antec P180 Logitech MX-510 blue 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel 2500k Asus P8P67 Galaxy GTX580 8GB G Skill Ripjaws 
Hard DriveOSMonitorKeyboard
Intel 80 gb SSD, Raptor 150 Windows 7 Home Premium 24" Samsung LCD Saitek Eclipse 
PowerCaseMouse
PCP&C 750W Antec P180 Logitech MX-510 blue 
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Reply
post #13 of 13
I found this one has the cold bug:
175 CCBWE 0544 XMPW good/great on air up to 2.7 - 2.8GHz. Cold bug @ -10c

Link:
http://wiki.extremeoverclocking.com/...eron_Steppings

I have a different stepping:
Opteron 175(CCBWE0546XPMW)

I would like to find out if mine will be affected.
My System
(13 items)
 
  
CPUMotherboardOSPower
Opteron 175 DFI Expert Windows XP Pro Turbo-Cool 510 
Case
Antec 1080B 
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My System
(13 items)
 
  
CPUMotherboardOSPower
Opteron 175 DFI Expert Windows XP Pro Turbo-Cool 510 
Case
Antec 1080B 
  hide details  
Reply
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