I installed the Koolance waterblock for the RIVE and the EVGA/Swiftech waterblock for the GTX570 GPU.
Here is a photo of the stock heatsink on the RIVE. Notice that it does not cover all the MOSFETs!
Here is the Koolance RIVE waterblock. It covers all the MOSFETs.
I had to go to plan B and then plan C on the loop layout between the CPU waterblock and the MOSFET & PCH waterblocks. The problem is the height difference between the Raystorm CPU waterblock and the MB waterblocks. So, right now I have them connected with barbs and a very unsightly tall sharp bending loop. It works, but it doesn't look good.
I installed it all back into the case and after a few hours of leaking testing, i booted it again. I re-ran my 30 minute Prime95 tests to see the temperature differences and they are great.
I used a Fluke 561 IR Thermometer to measure the MOSFET temperatures before and after I installed the Koolance waterblock on the MOSFETs. The temps went from 88 deg C to 68 deg C when running Prime95 for 30 minutes at 4.4GHz and Vcore of 1.352.
I also use the IR Thermometer to measure the RAM while running Prime95. The RAM temps were typically about 42 Deg C when running at their specified speed of 2133 MHz and 1.5V. (4x4GB ofDominator GT's).
So, now that the MB waterblock is installed, I re-started my overclocking process starting at 4.4GHz. This time, the "training wheels" are off and I am setting parameters away from "Auto".
I completed a 12 hour run of Prime95 at 4.4GHz with the following settings:
Ai Tuner: XMP
Turbo Multiplier: 44
CPU Load-Line Calibration: Medium
CPU Current Capability: 150%
VCCSA Current Capability: 120%
DRAM Current Capability: 130%
CPU Spread Spectrum: Enabled
PCIe Spread Spectrum: Enabled
I then completed a 12 hour run of Prime95 at 4.6GHz by just changing the Multiplier. I did not have to change anything else.
I then tried 4.8GHz with the settings from above plus these changes:
Turbo Multiplier: 48
CPU Load-Line Calibration: High
CPU Current Capability: 160%
One thread failed after 1 minute of Prime95.
I changed the CPU LLC to Ultra-High and the CPU Current Capability to 170% and re-started Prime95. It failed after about 1.5 hours. It was a "soft" failure. Meaning that Prime95 simply reported an error in one thread and continued with the other threads. Windows is still running. Even though I set the Vcore to 1.370 in the BIOS, CPU-Z reports it as 1.416V when fully loaded by Prime95.
So, I could be happy with 4.6GHz, but I am open to any ideas of what BIOS settings to change next to try 4.8GHz.
Thanks in advance.
PS: I did slide in a run of BOINC overnight now that the GPU is watercooled. The fully loaded GPU tempature was 77 deg C on air and now it is 35 deg C on water! (as reported by GPU-Z when the GPU was 98% loaded for 30+ minutes)