View Single Post
Old January 20th 16, 09:55 PM posted to,alt.electronics
Ian Field
external usenet poster
Posts: 37
Default How does the Skylake fix work?

"Mr Macaw" wrote in message news
On Thu, 14 Jan 2016 11:37:56 -0000, Trent .****of wrote:

On Wed, 13 Jan 2016 13:05:47 -0000 "Mr Macaw" wrote in
Message id: :

On Wed, 13 Jan 2016 13:01:40 -0000, Trent .****of wrote:

On Wed, 13 Jan 2016 12:03:30 -0000 "Mr Macaw" wrote in
Message id: :

Just out of interest, how does a hardware bug in a CPU get fixed by a
software BIOS update? Isn't the bug a physical misconnection in the

Microcode updates.

So the bug was in the firmware of the CPU, not the physical circuitry?

I've never heard of or done a CPU firmware update. Are they included
with motherboard BIOS updates?

Yes, the manufacturer of the MB releases a BIOS update to correct the
issue. For this particular errata, Intel has given the MB manufacturers
the information needed to do this.

I've read in MB BIOS update instructions that it fixes X to do with the
CPU, but I always assumed that was a motherboard fault where it didn't
work with new types of CPU etc.

Is that another one you broke on purpose?