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Simple instructions for freezing a Skylake Processor

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Nebulous

Señor Senior, Senior
Joined
Oct 11, 2002
Location
The Empire State
Very interesting read for those with Skylake cpus

orlich Jan 6, 2016 2:33 PM (in response to Henk_NL)

Hello All,

Intel has identified an issue that potentially affects the 6th Gen Intel® Core™ family of products. This issue only occurs under certain complex workload conditions, like those that may be encountered when running applications like Prime95. In those cases, the processor may hang or cause unpredictable system behavior. Intel has identified and released a fix and is working with external business partners to get the fix deployed through BIOS.

Source
 

wingman99

Member
Joined
Dec 10, 2003
QUOTE:It is my fear that like the infamous FDIV bug this issue will require a new stepping and a product recall, since this has security implications as well. looks like they may disable something in bios until the new stepping.
 

MNMadman

Member
Joined
Dec 13, 2015
Woohoo! Those of us with 6600K (or any other non-HyperThreading CPU) seem to be safe.

The "fatal combo" is...

- Skylake AND
- HyperThreading AND
- AVX2 AND
- 768K FFT size

If you are going to test this and you are running v28.7 you need to disable FMA3 by entering "CpuSupportsFMA3=0" into the local.txt file. Previous versions don't need to do this.
 
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