Please see below image of my cpu burn it test. Are these results/settings acceptable for a 4.7 GHz overclock? The only changes made so far are 100MHz clock with 47 multiplier.
ASUS P8Z68 DELUXE/GEN3 LGA 1155 Intel Z68 SATA 6Gb/s USB 3.0 ATX Intel Motherboard with UEFI BIOS
Intel® Z68 chipset:
1 x SATA 6Gb/s port, gray: SSD (AHCI/RAID)
Crucial M4 CT128M4SSD2 2.5" 128GB SATA III MLC Internal Solid State Drive (SSD)
1 x SATA 3Gb/s port, blue: HDD1 RAID 0 array (AHCI)
1 x SATA 3Gb/s port, blue: HDD2 RAID 0 array (AHCI)
Marvell® PCIe 9128 controller :
1 x SATA 6Gb/s port(s), navy blue: optical drive
WIN7 64 ULT and games on 120 GB Crucial M4 SSD
WD Caviar Black 1TB x2 RAID 0
Chenbro Gaming Bomb II case
Zotac ZT-50104-10P GeForce GTX 580 3 GB
G.SKILL Ripjaws X Series 16GB (4 x 4GB) DDR3 1866 (PC3 14900)
Intel i7-2600K Sandy Bridge 3.4GHz (3.8GHz Turbo Boost, overclocked to 4.6GHz)
Corsair H50 CPU Water Cooler with dual push/pull fans
ASUS VG236H 23-Inch 120 Hz 3D Ready Panel Monitor/nVidia 3D Vision Kit
Samsung 42" Multisystem TV LCD
Thermaltake Black Widow 850W PSU
The H50 is not that great a cooler to be honest and works about as well as a lower end air cooler. Those temps are way too high. Also you need to keep your CPU voltage under 1.4v. Many people have found that 1.4v and over degrades the Sandy Bridge chips over time. I am 100% stable at 4.5Ghz with hyperthreading on at 1.36v.
Lower core voltage. And keep in mind the temp you see during that test will be much higher (20 degrees +) than what you would see in any real cpu intensive work. IE, overclocked my q9550 to 4 ghz, hit 72 on burn test, never see it get to 50 in real work when it's at 100% usage.
Thanks for your help! I realized that the H50 radiator fan has to be installed so as to suck cold air from outside into the radiator per Corsair. With this change, also configured the top fan as an exhaust and not intake fan. Below are new numbers with modified fan configuration. Does it still seem that I need to reseat the heatsink against the CPU?
Your CPU voltage is still 1.46v. After seeing all the articles about 1.4v and higher killing Sandy Bridge chips I would not run mine that high. You may get lucky and have a chip that does not happen to.
Thanks, will lower the vcore voltage! Below are some screens of stress tests over time. Looks roughly like it stays at 40 and jumps to 70 during parts of the test.
Here are the asus control panel settings.
What should I lower my CPUVoltage setting from the 1.32 V presently set at? Looks like a 0.1 V difference between CPUVoltage reported from the asus control panel and Core Voltage reported from the monitors.
Beeing an owner of the 2600k i would say that your temps are OK in the burn test. I have a titan Fenrir Evo 2 cooler (a socket 775 cooler) witch i mounted on the Asrock z68 pro 3 MB.
My temps @ 4,4 Ghz - Idle - 29 - 30 degrees celsius
- full load - 81 degrees celsius max /core 1,2,3 WHILE Core 0 never passes 68 degrees.
The only thing that concerns me @ your OC is the voltage and the Gflops output of your CPU. I meen i get 101 Gflops @ 4,4 Ghz and you get only 71 -76 Gflops. That meens something is not working as intended even if you pass the test. Overclock meens more performance witch meens it should result in more Gflops.