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post #4251 of 4257 (permalink) Old 06-12-2019, 06:21 AM
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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.


Last edited by MysteryGuy; 06-12-2019 at 06:36 AM.
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post #4252 of 4257 (permalink) Old 06-12-2019, 06:45 AM
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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.
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post #4253 of 4257 (permalink) Old 06-12-2019, 07:16 AM
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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.

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post #4254 of 4257 (permalink) Old 06-12-2019, 07:55 AM
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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
...

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post #4255 of 4257 (permalink) Old 06-12-2019, 08:34 AM
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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.

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post #4256 of 4257 (permalink) Old 06-18-2019, 12:08 AM
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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

Last edited by neroneuk; 06-18-2019 at 12:13 AM.
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post #4257 of 4257 (permalink) Old 06-18-2019, 06:13 AM
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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

Vaper
(4 items)
CPU
i9-99400x With evo and koolance vrm water blocks
Motherboard
ASUS x299 TUF Mark 2
GPU
Titan Xp with copper Water Block
RAM
Trident Z 3600C16 4x8gb's b-die default timings 16-16-16-36
Hard Drive
Samsung 850 Pro 256gb for os and 500gb evo for favorite games plus other wd hdd's for data and backup's
Optical Drive
LG Blu-Ray WH16NS40
Power Supply
evga 1200P2
Cooling
2-280GTX Black Ice Nemesis rads with D5 pump-res combo and D5 top before and after rads.
Case
corsair 450D with added 2nd floor to house radiator on top
Operating System
Win-7 pro & 10 pro Win-7 Primary os.
Monitor
ASUS VG248QE 24" 144Hz
Keyboard
Logitech G910 Orion spectrum
Mouse
redragon
Audio
Insignia 2.0 soundbar HSB318
CPU
i7-5930k with evo and koolance vrm water blocks
Motherboard
X99 Sabertooth
GPU
EVGA 1080ti FTW3 with Water block
RAM
Trident-Z 3200C14 4x8gb's b-die default timings 14-14-14-34
Hard Drive
Samsung 850 Pro 256gb for os and 500gb evo for favorite games plus other wd hdd's for data and backup's
Power Supply
EVGA 1000w P2
Cooling
2-240 GTX Black Ice Nemesis rads/ D5 pump-res combo and D5 top before and after rads.
Case
Corsair 450D with added 2nd floor to house radiator on top
Operating System
Win-7 and 10 pro Win-7 Primary os.
Monitor
AOC G2460PG 24"G-Sync 144Hz
Mouse
Red Dragon
Audio
Insignia 2.0 soundbar HSB318
Hard Drive
eLeaf MELO-3 4ml
Power Supply
SE US18650VTC6 3120mAh 30A 3.6V 18650 Li-ion Battery - GREENx4
Case
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Operating System
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