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06-18-2019 06:13 AM
ThrashZone
Quote: Originally Posted by neroneuk View Post
Hi, I got the usb3.1 version with the 6850k and with the last w10 may edition I lost the O.C. With the XPM setting I read max 4000mhz for the first core and 3800mhz for the rest(HWINFO64). Just installed the latest 3901 firmware but cannot see any changes. What am I doing wrong, please help. Do I need a microcode? how did the rest of you sorted it out? Recently tried a W10 hack which I found and it worked but obviously the PC would be unprotected, is there another way round to it that I do not know??
Thanks
Hi,
Broadwell-e thread yes it's a micro code update you need to deal with links in quotes here should help
https://www.overclock.net/forum/5-in...l#post27994668
06-18-2019 12:08 AM
neroneuk Hi, I got the usb3.1 version with the 6850k and with the last w10 may edition I lost the O.C. With the XPM setting I read max 4000mhz for the first core and 3800mhz for the rest(HWINFO64). Just installed the latest 3901 firmware but cannot see any changes. What am I doing wrong, please help. Do I need a microcode? how did the rest of you sorted it out? Recently tried a W10 hack which I found and it worked but obviously the PC would be unprotected, is there another way round to it that I do not know??
Thanks
06-12-2019 08:34 AM
ThrashZone Hi,
Bios rarely if ever address Intel security flaws it's all Intel micro code updates for one and like I said MS is handling them plus any other os security flaws to workaround other flaws
New bios may have a micro code installed in it or new management engine but that's about it other than performance improvements usually related to memory.

It's just a game of whack a mole of threats one is so unlikely to get hit by it's silly to even entertain any worries over.
06-12-2019 07:55 AM
MysteryGuy
Quote: Originally Posted by nodezero View Post
as far as I know the updates that mitigated zombieload and other subsequent mds exploits were pushed by Windows, and the bios update from Asus then mitigates (as much as possible) the performance hit that resulted fromthe Windows updates. this is actually what 3803 did by re-enabling the overclock that many lost as a result of the previous Windows spectre/meltdown updates.
I got the impression that you needed the BIOS CPU Microcode updates to after reading https://portal.msrc.microsoft.com/en...sory/ADV190013. This suggests checking your mitigation status (of the Specter-like things) by running a program in Powershell (See https://support.microsoft.com/en-us/...ngs-powershell).

Running that program on my X99-E WS USB/3.1 with BIOS 3803 seems to say that L1TF is mitigated, but MDS/Zombieload is not:

"...
Speculation control settings for CVE-2018-3620 [L1 terminal fault]

Hardware is vulnerable to L1 terminal fault: True
Windows OS support for L1 terminal fault mitigation is present: True
Windows OS support for L1 terminal fault mitigation is enabled: True

Speculation control settings for MDS [microarchitectural data sampling]

Windows OS support for MDS mitigation is present: True
Hardware is vulnerable to MDS: True
Windows OS support for MDS mitigation is enabled: False"

I have no idea if the 3901 BIOS update (which I assume would allow MDS protection) also somehow increases performance compared to 3803 (without MDS protection) though. The 3901 BIOS description claims some type of improved system performance, but doesn't seem to make it clear where this would be expected.

Also, I did see that a recent Windows 10 update has enabled 'retpoline' mitigation (at least for my CPU) for an older flaw. This appears to be faster than what they used to do before:

...
BTIHardwarePresent : True
BTIWindowsSupportPresent : True
BTIWindowsSupportEnabled : True
BTIDisabledBySystemPolicy : False
BTIDisabledByNoHardwareSupport : False
BTIKernelRetpolineEnabled : True
...
06-12-2019 07:16 AM
ThrashZone Hi,
Only close way to mitigate all these security flaws is to turn off hyper threading
Doubt any bios updates going to do anything worth wild otherwise

Windows updates is offering micro code updates no need for bios updates when that's going on unless a system has a problem with them being installed

Ever bsod help person I've ever read says update bios which is a lame response bios usually solves nothing and only adds more issues.
06-12-2019 06:45 AM
nodezero
Quote: Originally Posted by MysteryGuy View Post
I just saw that the 3901 BIOS update for my X99-E WS/USB 3.1 is available.



Are you saying that the 3901 update will make things faster (than 3803)?



I was thinking that the 3901 update would update the Processor Microcode and that would enable protection against 'zombieload', but probably degrade performance some more in the process. (As I think was the case when Meltdown/Specter updates came along).



If 3901 would boost performance (compared to 3803 under Windows 10) I would probably apply it...



Thanks.
as far as I know the updates that mitigated zombieload and other subsequent mds exploits were pushed by Windows, and the bios update from Asus then mitigates (as much as possible) the performance hit that resulted fromthe Windows updates. this is actually what 3803 did by re-enabling the overclock that many lost as a result of the previous Windows spectre/meltdown updates.
06-12-2019 06:21 AM
MysteryGuy
Quote: Originally Posted by nodezero View Post
welp, just flashed the 3901 bios that dropped today. seems the performance issues resulting from the microcode updates have been mostly mitigated.
I just saw that the 3901 BIOS update for my X99-E WS/USB 3.1 is available.

Are you saying that the 3901 update will make things faster (than 3803)?

I was thinking that the 3901 update would update the Processor Microcode and that would enable protection against 'zombieload', but probably degrade performance some more in the process. (As I think was the case when Meltdown/Specter updates came along).

If 3901 would boost performance (compared to 3803 under Windows 10) I would probably apply it...

Thanks.
06-10-2019 07:55 PM
Villanelle
Quote: Originally Posted by J7SC View Post
The plot thickens - when I checked the Asus site, Bios 3901 for the regular X99 E-WS (non USB 3.1) was still there, but for X99 E-WS/USB 3.1, it only showed Bios 3803 from August 2018 as the latest...may be one got pulled, or who knows ?
You can find it in Drivers & Tools. Select DOS as OS and it shows up.

Direct link: https://dlcdnets.asus.com/pub/ASUS/m...-ASUS-3901.zip
SHA512 checksum: b3bb40ae0dee5c274e9ce6626e5e5b5c8ca5cf7d5afb487be6 8164d9f1bc9de4752df3d211ad5e6b8b895e5c47cd9e4bf543 2e6c524c90808070b21c6cac9f8b
05-29-2019 10:27 AM
jsutter71 Well this is it for me and the X99-E WS USB 3.1. I finally have decided to list mine and my CPU and my Titan XP's on ebay. If you have seen my posts then you will know that I have been interactive in support of this community. Now that my wife has signed our final divorce agreement I don't have any limitations on how I choose to spend and upgrade. I haven't decided yet on where to go next, but it's a safe bet that an Asus WS motherboard will be at the top of the list.
05-27-2019 07:45 PM
J7SC The plot thickens - when I checked the Asus site, Bios 3901 for the regular X99 E-WS (non USB 3.1) was still there, but for X99 E-WS/USB 3.1, it only showed Bios 3803 from August 2018 as the latest...may be one got pulled, or who knows ?
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