Intel fix to i7-6700K bug, is it in the chip or the chipset ?!

Amyrro

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Oct 23, 2015
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Hello everyone

I have been planning a build for while now, and when I was almost sure about the CPU I would purchase, I was frustrated with the news of the bug in the Skylake i7-6700K. I will be using that build for an up-coming project involving a lot of CFD (computational fluid dynamics), FEA (Finite Element Analsyis) & Engineering Analysis (MATLAB, ...etc), which all require a heavy amount of calculations, and the Skylake suffer from a bug in performing heavy calculations involving Prime numbers, a scenario that is possible to occur when carrying out some heavy CFD & FEA.

Intel issued a fix as I found online. However, I am not quite sure what was fixed exactly, the chipset, chip or firmware. I found some CPUs from a local retailer, which is going to be better in terms of the local warranty, time to received the CPU (pay & pick), and the price, as it is sold locally (middle east) a few dollars cheaper than online, and I will not need pay for the shipping from the USA. However, I highly doubt the retailer is selling any newly produce CPU from Intel, as I suspect that the retailer is selling CPU from a stock that received a while ago (which is a very genuine scenario for small local retailers). I will order the MoBo from the Internet.

Thus, I would like to know if it is going to make any change if I order the CPU from a large retailers, such as Newegg or Amazon, that would probably sell a CPU from the latest bunches produced by Intel, or get an older stock CPU from a local retailer.

If the fix has nothing to do with the CPU, will what I mentioned be applicable to the motherboard. So, if I order a new MoBo that was produced after the fix had already been deployed by Intel, is it more likely that the fix was already implemented by the manufacturer to the MoBos ?!

Thanks in advance

Regards

 
Solution
It's a cpu issue but the micro code can be updated through a bios update which is how they are deploying the fix. So just check with the mobo if there was an updated bios fix for the cpu bug.

Amyrro

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Oct 23, 2015
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So, does this mean that there will be no difference whether I get a CPU produce in 2016 or one that was produced in 2015 ?!

Plus, where could I look up for the available updates of motherboards ?! I am planning to get an Asus MoBo, most likely the Z170-A, otherwise a Z170-Deluxe.

Thanks for you reply

Regards
 
It is a bug in the CPU. Intel has issued one microcode update. I saw on another forum that Intel is going to issue a second microcode update, but I don't have confirmation.

The fix will come from your mainboard's manufacturer, in the form of a BIOS update.

ASUS issued new BIOSes in January with new microcode, but it says nothing about whether it fixes the Skylake bug or not. Therefore, we assume it's not fixed yet.

As far as where to find BIOS updates for your board, they will be on the manufacturer's web site in the Support section. Search for your board and they will show you a list of the BIOSes available and when they were released, plus the reason why.
 

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