Skylake Troubles With Prime95 Causes System Freeze, Fix Via BIOS Update On The Way

Shared by cck_my in the forum and also reported by Arstechnica UK, it appears that forum members of the Hardwareluxx.de community found an issue with Skylake using Prime95 workloads. The problem was later confirmed by mathematicians at Great Internet Mersenne Prime Search (GIMPS), the organization behind Prime95. Intel has confirmed the findings and made the following statement to Arstechnica:

"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 behaviour."

According to Arstechnica, a fix has been developed and will be distributed via the hardware partners via a BIOS update. The bug affects only specific workload scenarios and is not a concern for the majority of the Skylake users. It is confirmed that the issue occurs on both Windows and Linux and can be induces when configuring Prime95 to use Fast Fourier Transforms and an exponent size of 14,942,209.

A couple of sceptic overclockers hinted that this is a way for Intel to lock down the non-K overclocking, but that's not confirmed. Let's wait and see, but even in case the new BIOSes disable non-K overclocking you can still use the currently available versions for overclocking adventures.


10

Malaysia cck_my says:

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.


http://arstechnica.co.uk/gadgets/2016/01/intel-skylake-bug-causes-pcs-to-freeze-during-complex-workloads/

https://communities.intel.com/mobile/mobile-access.jspa#jive-content?content=%2Fapi%2Fcore%2Fv3%2Fcontents%2F524553

United States Gunslinger says:

cck_my said: 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.


http://arstechnica.co.uk/gadgets/2016/01/intel-skylake-bug-causes-pcs-to-freeze-during-complex-workloads/

https://communities.intel.com/mobile/mobile-access.jspa#jive-content?content=%2Fapi%2Fcore%2Fv3%2Fcontents%2F524553


So this is how they're disguising their non-K type overclocking c ockblock :D

Greece TASOS says:

I dont think the bios work arround is the right thing to do.

Funny thing is , they already released a newer stepping at late Oct 2015
Now they have to make a newer one.

RMA purpose
My cpu freezes during 768k FFT length calculations on Prime95
:D

United States cowgut says:

maybe its prime? oh maybe not

Indonesia speed.fastest says:

I don't think any human run Prime95 for daily usage :p

Belgium leeghoofd says:

Gunslinger said: So this is how they're disguising they're non-K type overclocking c ockblock :D


Exactly my thoughts...

United States sin0822 says:

The guy who found this issue and brought it to attention said hes a German overclocker who had access to 200+ Skylake CPUs, anyone know who he is?

Belgium leeghoofd says:

Should be TheFarmer Steven

United States sin0822 says:

ahh okay cool, just didn't know who it was :)

United States steponz says:

lol that roman guy lol

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