OCZ Technology's Cryo-Z is an advanced cooling solution for the extreme overclocker using phase-change technology to achieve sub-zero temperatures at the CPU. The built-in temperature monitoring and control circuitry keeps the temperature at a steady level of -45 to -50 degree Celsius at the nozzle. If the temperatures fall outside a predefined range, the system will automatically be shut down by the Cryo-Z control unit. The same control unit also pre-chills the system and automatically turns on the computer once a temperature of approximately -30 degree Celsius is reached. If the compressor and condensation units are reaching a critical high temperature threshold, the Cryo-Z will automatically initiate a shut-down sequence of the computer.

The Cryo-Z was developed with optimal user-friendliness in mind, including the insulation of the cooled parts as a necessary precaution against condensation. The novel approach to air-tight insulation using layered close-cell material greatly simplifies phase-change cooling to extreme temperatures by establishing an air-tight seal around the chilled structures. By preventing humidity from penetrating the insulation, icing-up can largely be avoided. Individual results will vary depending on climate conditions and user habits.

Cryo-Z Manual

Warranty = 30 Days From Date of Purchase

Now LGA 1156 & LGA 1366 Compatible ! !

*Note: The compatibility for LGA 1156 and LGA 1366 is available only at FrozenCPU.com. We have tested this additional hardware extensively and have brought to you the Cryo with the capability to use it on the latest hardware!

We made a custom Intel mounting plate that is adaptable for LGA 775, LGA 1156, LGA 1366 out of aluminum and powder coated it black. Next we took the best backplate we could find for these sockets and added that as well.

Collar Replacement Instructions

How does it work?

• The Cryo-Z uses a compressor to actively cool the nozzle mounted on your CPU in order to chill it down to sub-zero temperature. The Cryo-Z uses sophisticated internal control logic to prevent damage to your system caused by power outages or incorrect power-up sequences. *Before the system can be powered up, the Cryo-Z needs to pre-cool the head. Once the temperature at the CPU reaches -30 centigrade, the control logic allows power-up of the computer. If for some reason the temperature at the nozzle increases above 70 centigrade, the Cryo-Z will initiate the shutdown sequence of the computer to avoid damage from overheating. In order to achieve these capabilities, the connection between the power button of the system and the motherboard needs to be routed through the Cryo-Z, please follow carefully the installation instructions.

What precautions are taken against condensation and ice build-up?

• Condensation and ice build-up are some major concerns in any cryogenic environment. To reduce any exposure of cold surfaces to the ambient case air, every chilled surface of the Cryo-Z has been carefully insulated. In addition, a heating element is provided to be attached to the back of the motherboard, in order to prevent condensation behind the motherboard. Please consult the installation section of this manual for details of installing additional insulation material and the heating pad.

Why does my BIOS hardware monitor show a temperature above zero degrees when the Cryo-Z displays minus temperatures?

• Some Hardware monitors have a fixed lowest temperature that is displayed in the BIOS irrespective of the actual CPU thermal diode. *Please check for BIOS updates from your motherboard manufacturer.

AC Input:	110V
Compressor:	ZEL GQY70AD
Refrigerant:	R-507
Max Stable Load:	120W
Idle, 0W:	-40 to -55 C
Dimensions (DxWxH):	18.0in x 8.2in x 10.1 in
Weight:	26 kg/ 50.6 lbs
Includes:	Cryo-Z Insulation Foam Resistive Heater CPU Brackets for AM2, 775 Mounting Screws
Included By FrozenCPU:	Variable Backplate (LGA775/1156/1366) Variable Mounting Plate (LGA775/1156/1366)
Warranty:	30 Days from date of purchase

06-26-2010
Reviewer: rocky9mm (2)
Bought here , delievered US Postal for best care heads up from Frozen Cpu to me . Let me say that this unit I am very surprized what it does with AMD Thuban . Its hold temp load with on LinX . I bench at 4.8GHz plus , I validated 5.1GHz . Its unbelievably quiet . I opened it up and the build is clean . It works as advertised . I prepped my board using eraser ect. I use this unit for everyday use . I recommend this for AMD users . It works fine for i7 but could not hold linX load . I give it a thumbs up a great bang for the buck . I hope OCZ steps up and releases a follow up model with a greater refrigerant charge . Like I say for AMD Thuban 1090T it does hold 100% linX load no problem . Very happy with it !

06-09-2010
Reviewer: Jeff (1)
I am a system builder and have had a 1 in 3 success rate with the Cryo-Z through FrozenCPU. The first was DOA and returned, the second worked, the third had a build defect that I figured out only after the unit was out of warranty. I have no confidence that the working unit will last more than a few months. OCZ no longer provides any warranty and no longer makes these units. FrozenCPU has purchased their remaining stock and offers only a 30 day warranty. If you think ANYTHING might be wrong with your unit, return it immediately while it is still under warranty. On the specifications tab on this site, note the 120W max stable load. That is a pathetic number and not suitable for overclocking most modern CPUs to their full potential. In my problematic unit that is out of warranty, I figured out that the copper tube leading to the chiller head was badly kinked and was preventing the coolant from cycling to the chiller head. You would never see this kink unless you opened the case and removed the insulation. With that assembly defect, that particular unit did not have much of a chance at lasting very long from the start. Trying to straighten out the kink caused the copper tube to depressurize and made the unit useless...you get what you pay for.

03-29-2010
Reviewer: JM (1)
I bought one of these units almost 1 month ago and it works like it should. one bad thing is i was missing the mounting hardware the case was scratched front to back, wires weren''t connected right and I had to recover all the copper tubes because the crappy job that ocz did was real bad. On the bright side it gets colder faster and now goes down to - 51 before it only went to -39/41*c. I think OCZ needs to take more pride in the quality of there work. just because its cheap dont mean you need to cut corners to save some money.

12-15-2009
Reviewer: JS (4)
Bought one several months ago for my Extreme i7 rig and while it looked great, heard rattling and found a loose electrical connector inside and the 120VAC wires were touching the case (case is very difficult to get into). Then after install found compressor would not run due to defective board. Not wanting to do RMA after all the work done to get it going and installed, I made my own board to run the system only to find out afterwards that there was slow leak of refrigerant (symptom was that it took longer and longer to cool down). Turned out to be just a loose valve but too much had leaked to work, so replaced refrigerant (need to know what your doing). With a few other mods, it now works better than the original would have, getting to 30 C in less than 2 minutes (refrigerant I used has a much better efficiency than original). Concept of inexpensive phase change is great but you get what you pay for. For those who want to mod this, it is fine since the key components would cost you more to buy yourself, but would not recommend to anyone but advance modders. P.S. Coollaboratory liquid metal works great as melting point is 8 degrees C, so it solidifies into a block of metal giving a near perfect thermal interface (trick is to use dielectric under and along sides of CPU topped off with a silicone sealant to prevent any from getting to CPU during application and afterwards. I also lapped the Cryo-Z and CPU to 1/2000 and applied the liquid metal to both interfaces and put a small bead in center with a lot of clamping pressure.

skinneelabs.com November 16th, 2009