[QUOTE=Madpoo;424938]I'll have to remember the motherboard makers who were actually on top of this and paid close attention.[/QUOTE]
:tu: Same here. Looking for a mobo for about 2 months now (x99, 4 way PCIe x16 spaced at 2 slots is a must) and I was just cutting Asus from the list after making huge efforts to get a hand on their x99e-ws mobo. This is one more reason for me to stay away for now.

[QUOTE=Madpoo;424938]Sigh... I guess not every MB manufacturer is as hip and cool. They just twiddle their thumbs and wait for the official Intel errata to even start anything.

It does give me food for thought when I buy my next home system... I'll have to remember the motherboard makers who were actually on top of this and paid close attention.[/QUOTE]
I am disappointed in Asus. I have used, or recommended their boards for a long time. Both boxes in this house run on Asus boards.

Am I correct in thinking that Asrock was quick out of the gate on BIOS updates with the new micro-code? Maybe MSI?

[QUOTE=kladner;424955]I am disappointed in Asus. I have used, or recommended their boards for a long time. Both boxes in this house run on Asus boards.

Am I correct in thinking that Asrock was quick out of the gate on BIOS updates with the new micro-code? Maybe MSI?[/QUOTE]

Having around 5 ASRock rigs working here... none have really given me any trouble at any time.

Well... I got an ASUS board, and the recently released bios 1402 fixed the 768k thing. That was a week before I read that ASRock fixed it. I think they did a quick-fix but want to go public only after Intel releasing more info.

EDIT: It's the Z170 Hero, the MC is 6a.

ASUS Z170
 

I got an ASUS Z170 gamer motherboard with Skylake 6770k cpu. Haven't updated the BIOS since I got the machine back in November. I tried to reproduce the bug following exact steps a few times and couldn't do so. Maybe I got lucky or maybe the CPU already had the accidental fix from Intel. Either way I am not going to update the BIOS unless I see anything for risk of unsettling a perfectly functioning system.

[QUOTE=Scottyboy99;424972]I got an ASUS Z170 gamer motherboard with Skylake 6770k cpu. [/QUOTE]

Are they out, yet?

[url]https://geizhals.de/195421249[/url]

Yep, sorry I meant 6700k

[QUOTE=Scottyboy99;424974]Yep, sorry I meant 6700k[/QUOTE]

Actually I am very curious to see the Devil's Canyon of Skylake. There is a lot of room for performance with this chip.

Just wanted to give everyone an update on my situation. I'm now on day 9 of continuous uptime with the new EVGA G2 750 PSU. I should note though that I had HWInfo logging turned on for the 1st 7 days, and there's a possibility that was keeping the CPU from going into any deep sleep states. I turned it off at pegnose's suggestion that it was very unlikely to provide any useful info.

I'll report back in a week or so and let you know definitively if it was the PSU that did the trick. That would be highly surprising to me as my previous PSU (Seasonic G650) is supposed to be very good and Haswell (C6/C7) certified. But when I looked at the JohnnyGuru reviews of that PSU and the EVGA one I have now, the EVGA one does much better on ripple suppression and voltage regulation than the Seasonic one. Perhaps Skylake-S is just that much more sensitive to power delivery? I even tried an older Corsair RM750 PSU that was in my previous Sandy Bridge build and it exhibited the same idle hangs.

Anyhow, I don't want to get too hopeful yet, If I can go another week, then I'll declare victory.

Sometimes power supplies may be slightly damaged from electrical surges. I've seen it happen.

[QUOTE=Mark Rose;425081]Sometimes power supplies may be slightly damaged from electrical surges. I've seen it happen.[/QUOTE]

Fair enough, but to have it only affect idle operation, and to have 2 PSU's exhibit the exact same behavior? Seems odd to me. I'm still not confident this will actually be the end of it. Next week can't come fast enough :)