[Bios] Maximus XI Extreme LLC problem

[A_sH79]

Hi everyone

System Spec
MB Asus Maximus XI Extreme
Bios 0805
CPU I9 9900K
Ram GSkill 4x8 4000 CL18
Samsung pro 970 512GB
PSU Bequied 1000W

CPU @5Ghz AVX offset -1, Bios vcore fixed @1.340 LLC 5, CPUz/HWinfo idle vcore 1.315 – Prime AVX max load 1.165v.
Sometimes the system crash at low load (1.26 to 1.28v)/load change. Tried LLC 4 to 8 but with every LLC aside from 5 crashes the System when the load changes from idle to full load.

Reset Bios to default (no OC all settings auto) Auto LLC 6 -> crash instant to 2sec in Prime
Switched LLC Auto to 5 and system runs prime / linpack 1h but random crash in Games at low load/load change
CPU and Ram tested in MSI Z390 ace at 5Ghz AVX -1, Bios vcore fixed @1.295v, CPUz/HWinfo idle vcore 1.286 – Prime AVX max load 1.270v runs without problems in Prime, Games, load changes etc.

Power draw and Temps about the same.
Advice needed cause I don’t know how to fix the problem. Why is every LLC setting beside level 5 crashing the system at load change?

[Phillyflyer]

A_sH79 wrote:
Hi everyone

System Spec
MB Asus Maximus XI Extreme
Bios 0805
CPU I9 9900K
Ram GSkill 4x8 4000 CL18
Samsung pro 970 512GB
PSU Bequied 1000W

CPU @5Ghz AVX offset -1, Bios vcore fixed @1.340 LLC 5, CPUz/HWinfo idle vcore 1.315 – Prime AVX max load 1.165v.
Sometimes the system crash at low load (1.26 to 1.28v)/load change. Tried LLC 4 to 8 but with every LLC aside from 5 crashes the System when the load changes from idle to full load.

Reset Bios to default (no OC all settings auto) Auto LLC 6 -> crash instant to 2sec in Prime
Switched LLC Auto to 5 and system runs prime / linpack 1h but random crash in Games at low load/load change
CPU and Ram tested in MSI Z390 ace at 5Ghz AVX -1, Bios vcore fixed @1.295v, CPUz/HWinfo idle vcore 1.286 – Prime AVX max load 1.270v runs without problems in Prime, Games, load changes etc.

Power draw and Temps about the same.
Advice needed cause I don’t know how to fix the problem. Why is every LLC setting beside level 5 crashing the system at load change?

Try these settings...
AI Overclock Tuner...XMP 1
BCLK...100.00
Asus Multicore Enhancement...disabled
SVID Behavior...Best Case Scenario
AVX Offset...0
Core Ratio ...Sync All Cores
1 Core Ratio Limit...50
Dram Frequency....4000 Mhz
Xtreme Tweaking ....Disabled
CPU SVID Support....Disabled
Dram Timing Control...Set Maximus Tweak to Mode 1
External Digi + Power Control...Set CPU LLC to 6
CPU Current Capability to 140 %
Dram Current Capability to 130%
Internal CPU Power Management...Set Intel Speedstep to disabled
Long Duration ....4095
Package Power Time Window...127
Short Duration Package Power Limit...4095
IA AC Load Line...0.01
IA DC Load Line ...0.01
CPU Core/Cache Current Limit Max...255.75
Min/Max Cache Ratio 43
CPU Core/Cache Voltage...1.24v or 1.245v
Dram Voltage...Will be set via XMP
CPU VCCIO and System Agent Voltages...use what is currently making ram stable.
In the Advanced Tab under CPU Power MGMT Control...
Set Boot Performance Mode to Turbo
Intel Speedstep....disable
Intel Speed Shift...disable
CPU C States...disable
CFG Lock Disable

[A_sH79]

With these settings i get the same result. Prime full load avx vcore to 1.199 - 1.208 10 sec. into the run system crash.
Run a few test with multi 49 to 47 and llc 6 (adjusted vcore / auto setting) at best 30sec till crash. Tried llc 7 even worse. Back to llc 5 and higher idle voltage 1.315v multi 50 axv -2 1h Prime stable avx/non avx. Avx offset 0 or -1 load voltage drops to 1.15 - 1.17 and get unstable single cores report error and stop the prime worker.
After testing i`m 99% sure this is caused by the vcore dropping to low. increasing voltage ends up with crashing non avx load

Load voltage is now just the same as llc 6 at 1.208 @5Ghz non avx prime and running
same load voltages, same power draw and right about same temps that i can read in tools @ same cpu multi llc5 running llc6 -8 crashing.
Only difference with llc6 and the right idle vcore i can run 5Ghz all core prime avx load over 30min (stopped the test) but then crashing shortly after starting prime non avx or cinebench 15

[orelha91]

Phillyflyer wrote:
Try these settings...
AI Overclock Tuner...XMP 1
BCLK...100.00
Asus Multicore Enhancement...disabled
SVID Behavior...Best Case Scenario
AVX Offset...0
Core Ratio ...Sync All Cores
1 Core Ratio Limit...50
Dram Frequency....4000 Mhz
Xtreme Tweaking ....Disabled
CPU SVID Support....Disabled
Dram Timing Control...Set Maximus Tweak to Mode 1
External Digi + Power Control...Set CPU LLC to 6
CPU Current Capability to 140 %
Dram Current Capability to 130%
Internal CPU Power Management...Set Intel Speedstep to disabled
Long Duration ....4095
Package Power Time Window...127
Short Duration Package Power Limit...4095
IA AC Load Line...0.01
IA DC Load Line ...0.01
CPU Core/Cache Current Limit Max...255.75
Min/Max Cache Ratio 43
CPU Core/Cache Voltage...1.24v or 1.245v
Dram Voltage...Will be set via XMP
CPU VCCIO and System Agent Voltages...use what is currently making ram stable.
In the Advanced Tab under CPU Power MGMT Control...
Set Boot Performance Mode to Turbo
Intel Speedstep....disable
Intel Speed Shift...disable
CPU C States...disable
CFG Lock Disable

I have the configuration 9900k, Xi extreme, H150i, 2080ti, 16gb 3600mhz, I followed this configuration, I turned p95 for 1 hour and I got stability! the maximum temperature was 93 degrees! fine? Can I change something to improve the temperature?
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