Jump to content

PSA: OC suddenly not working after recent windows update? Culprit found.

pyrojoe34
By pyrojoe34
in CPUs, Motherboards, and Memory
 Share
Posted

This is confirmed for many people with Broadwell-E (likely also affects other generations but I can't confirm, comment if you can). The OC shows up in the BIOS but not in windows (everything stays stock).

 

Turns out there was a recent bios update from MSI (my board is the x99a sli plus, CPU is 6800k) which fixed the issue.

 

The problem was the result of update KB4100347 which was an Intel microcode update. The BIOS update did the trick for me and now I have my OC back.

 

Having said that, I am seeing a ~4% decrease in Cinebench score after this update using the same OC so it seems to result in a performance hit. Can anyone else confirm this?

Primary PC-

CPU: Intel i7-6800k @ 4.2-4.4Ghz   CPU COOLER: Bequiet Dark Rock Pro 4   MOBO: MSI X99A SLI Plus   RAM: 32GB Corsair Vengeance LPX quad-channel DDR4-2800  GPU: EVGA GTX 1080 SC2 iCX   PSU: Corsair RM1000i   CASE: Corsair 750D Obsidian   SSDs: 500GB Samsung 960 Evo + 256GB Samsung 850 Pro   HDDs: Toshiba 3TB + Seagate 1TB   Monitors: Acer Predator XB271HUC 27" 2560x1440 (165Hz G-Sync)  +  LG 29UM57 29" 2560x1080   OS: Windows 10 Pro

Album

Other Systems:

Spoiler

Home HTPC/NAS-

CPU: AMD FX-8320 @ 4.4Ghz  MOBO: Gigabyte 990FXA-UD3   RAM: 16GB dual-channel DDR3-1600  GPU: Gigabyte GTX 760 OC   PSU: Rosewill 750W   CASE: Antec Gaming One   SSD: 120GB PNY CS1311   HDDs: WD Red 3TB + WD 320GB   Monitor: Samsung SyncMaster 2693HM 26" 1920x1200 -or- Steam Link to Vizio M43C1 43" 4K TV  OS: Windows 10 Pro

 

Offsite NAS/VM Server-

CPU: 2x Xeon E5645 (12-core)  Model: Dell PowerEdge T610  RAM: 16GB DDR3-1333  PSUs: 2x 570W  SSDs: 8GB Kingston Boot FD + 32GB Sandisk Cache SSD   HDDs: WD Red 4TB + Seagate 2TB + Seagate 320GB   OS: FreeNAS 11+

 

Laptop-

CPU: Intel i7-3520M   Model: Dell Latitude E6530   RAM: 8GB dual-channel DDR3-1600  GPU: Nvidia NVS 5200M   SSD: 240GB TeamGroup L5   HDD: WD Black 320GB   Monitor: Samsung SyncMaster 2693HM 26" 1920x1200   OS: Windows 10 Pro

Having issues with a Corsair AIO? Possible fix here:

Spoiler

Are you getting weird fan behavior, speed fluctuations, and/or other issues with Link?

Are you running AIDA64, HWinfo, CAM, or HWmonitor? (ASUS suite & other monitoring software often have the same issue.)

Corsair Link has problems with some monitoring software so you may have to change some settings to get them to work smoothly.

-For AIDA64: First make sure you have the newest update installed, then, go to Preferences>Stability and make sure the "Corsair Link sensor support" box is checked and make sure the "Asetek LC sensor support" box is UNchecked.

-For HWinfo: manually disable all monitoring of the AIO sensors/components.

-For others: Disable any monitoring of Corsair AIO sensors.

That should fix the fan issue for some Corsair AIOs (H80i GT/v2, H110i GTX/H115i, H100i GTX and others made by Asetek). The problem is bad coding in Link that fights for AIO control with other programs. You can test if this worked by setting the fan speed in Link to 100%, if it doesn't fluctuate you are set and can change the curve to whatever. If that doesn't work or you're still having other issues then you probably still have a monitoring software interfering with the AIO/Link communications, find what it is and disable it.

Link to comment
Share on other sites
Link to post
Share on other sites
Posted
21 minutes ago, pyrojoe34 said:

This is confirmed for many people with Broadwell-E (likely also affects other generations but I can't confirm, comment if you can). The OC shows up in the BIOS but not in windows (everything stays stock).

 

Turns out there was a recent bios update from MSI (my board is the x99a sli plus, CPU is 6800k) which fixed the issue.

 

The problem was the result of update KB4100347 which was an Intel microcode update. The BIOS update did the trick for me and now I have my OC back.

 

Having said that, I am seeing a ~4% decrease in Cinebench score after this update using the same OC so it seems to result in a performance hit. Can anyone else confirm this?

I can't confirm, though the 4% decrease in Cinebench score would make sense given the microcode update is a Spectre variant 2 patch.

Main Rig: CPU: AMD Ryzen 7 5800X | RAM: 32GB (2x16GB) KLEVV CRAS XR RGB DDR4-3600 | Motherboard: Gigabyte B550I AORUS PRO AX | Storage: 512GB SKHynix PC401, 1TB Samsung 970 EVO Plus, 2x Micron 1100 256GB SATA SSDs | GPU: EVGA RTX 3080 FTW3 Ultra 10GB | Cooling: ThermalTake Floe 280mm w/ be quiet! Pure Wings 3 | Case: Sliger SM580 (Black) | PSU: Lian Li SP 850W

 

Server: CPU: AMD Ryzen 3 3100 | RAM: 32GB (2x16GB) Crucial DDR4 Pro | Motherboard: ASUS PRIME B550-PLUS AC-HES | Storage: 128GB Samsung PM961, 4TB Seagate IronWolf | GPU: AMD FirePro WX 3100 | Cooling: EK-AIO Elite 360 D-RGB | Case: Corsair 5000D Airflow (White) | PSU: Seasonic Focus GM-850

 

Miscellaneous: Dell Optiplex 7060 Micro (i5-8500T/16GB/512GB), Lenovo ThinkCentre M715q Tiny (R5 2400GE/16GB/256GB), Dell Optiplex 7040 SFF (i5-6400/8GB/128GB)

Link to comment
Share on other sites
Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing CPUs, Motherboards, and Memory

×