Originally Posted by blacklight115
I finally found my overclock of 2.9 with completely safe temperatures. It is stable on orthos (cpu stress) for 12+hrs, and stable on memtest for 12+ tests.
However, when I run the orthos blend test, it fails anywhere between 10 minutes and 2 hrs. I raised the vcore a notch after it failed first and it actually caused orthos blend test to stop quicker.
Any ideas? For now, I will keep raising the vcore to see if that is the problem...
The Blend test is, as the name suggests, a test of the combined overclock settings of your CPU and your RAM. For me it's the last test used to see the ultimate stability of your OC.
Failures in blend are frequently caused by a RAM timing issue. MemTest86+ is good for checking basic RAM settings and for checking for defective DIMMs, but is not nearly as brutal as a blend test, I'd say.
Increasing VCore will just produce more heat and will not solve the problem, especially on Intels, where there is no IMC (Integrated Memory Controller).
You may try increasing chipset voltage (though I don't recommend this myself), but my chosen tactic would be to analyze your RAM timings and see where you can find some stability. Loosening timings a tad a setting at a time will often buy you some stability, albeit at the expense of a tiny bit of performance.
Hope this helps!