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Hi guys, I tested 4770K under my TEC block (KOC T38). As expected, core temperature improve dramatically over water cooling, and I was able to get some decent results. This particular 4770K I used is about average, with VID at 1.056V. So I couldn't crack 5.1Ghz stable this time. Maybe a re-mount will help rolleyes.gif Anyway here are the results:
(The stock paste on silicon die was replaced with MX-4 in all tests)

5.3Ghz Super Pi, 1.55V, TEC at about -20C:


5GHz Cinebench, 1.44V, Score 10.88, TEC at -5C max


I can run 5GHz AIDA tests for a while, but I didn't test it for like 12hrs. The load TEC cold plate temperature saturates around 1-3C at 5Ghz. This is the TEC block I use. See This Thread for details.



Comparison of core temps using different cooling methods:

*Benchmark software used: AIDA (ver 3.0) stability test. Core temps are taken from the core package average after all temps are stabilized. Water temperature is taken at the water block inlet. Ambient temperature is between 23-26C.

Detailed results:
Koolance CPU380
KOC WXE, IHS on
KOC WXE, IHS off
KOC T38


This is something that can be best measured using TEC: Core temp v.s. IHS temp. Since I have a controller that can lock the cold plate at any given temperature. Here are the results:

Core temp scaling of 4770K:

Yes, the slope is >1! It means if you lower your heatsink temperatue for 10C, you will lower your core temps for more than 10C. It has been like that since the first generation of Core i processor. Ivy bridge has a slope of 1.33 in this temperature range.
The graph is easy to read, for example when cold plate is at 25C you will have average core temps of 71C, and when cold plate is at 0C you will have 42C average core temp.
GT core I think is the graphics core temp. I use PCI-E video card so the GT core is not enabled. It shows the temperature at that part of silicon die.
Obsidian
(22 items)
 
CPUMotherboardGraphicsRAM
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OCZ RevoDrive3 X2 OCZ Vertex 4 WD 640GB  Swiftech 360 Radiator 
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MCP 35X pump Swiftech Apogee XT waterblock Foxrena's Water Rack KOC TEC and Fan controller 
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KOC 62mm TEC block Windows 7 Ultimate Dell UltraSharp IPS 27'' 2560x1440 Razor Black Widow Ultimate 
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Obsidian
(22 items)
 
CPUMotherboardGraphicsRAM
i7-3930K ASUS P9X79 Deluxe XFX HD 7970 Black Edition Double Dissipation Patriot Viper Xtreme Series 4x 4GB DDR3 2000 9-... 
Hard DriveHard DriveHard DriveCooling
OCZ RevoDrive3 X2 OCZ Vertex 4 WD 640GB  Swiftech 360 Radiator 
CoolingCoolingCoolingCooling
MCP 35X pump Swiftech Apogee XT waterblock Foxrena's Water Rack KOC TEC and Fan controller 
CoolingOSMonitorKeyboard
KOC 62mm TEC block Windows 7 Ultimate Dell UltraSharp IPS 27'' 2560x1440 Razor Black Widow Ultimate 
PowerCaseMouseAudio
Corsair AX1200i Corsair 800D Logitech G9X Logitech Z4 
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Reply