F5F Stay Refreshed Power Users Overclocking Can't modify CORE RATIOS for your i7 5820k without causing BSOD

Can't modify CORE RATIOS for your i7 5820k without causing BSOD

Can't modify CORE RATIOS for your i7 5820k without causing BSOD

T
ThroatSlash
Junior Member
35
01-02-2024, 05:41 PM
#1
I revised my initial post but it was flagged as solved; I couldn't find a way to unmark it, so here it is with the update... 4 months have passed.
I'm attempting to overclock an i7 5820K on an ASUS X99 Pro motherboard (latest BIOS). When starting with default BIOS settings that let me boot into Windows, changing the CPU Ratio from AUTO to SYNC ALL CORES in BIOS will trigger a BSOD upon saving and restarting—regardless of other adjustments. I've tried keeping every other setting at their defaults, setting the Ratio to stock speed (33), and even reducing clock speeds. Still, I end up with a 9C blue screen until I revert the Ratio back to AUTO. Using the "OC TUNER" in BIOS attempts an automatic overclock to 4GHz while leaving all other parameters at Auto. I've also increased the core voltage without success, which raises the question: why would I need to raise core voltage if I'm maintaining the CPU speed at or below stock levels?
Thanks in advance for any help.
UPDATE: 4 Months later, my PC still isn't working.
I returned the motherboard to ASUS RMA, but they sent me the identical board again. Then I bought a brand new ASUS x99 Pro from my local microcenter and installed the parts on the new motherboard. The same problem persisted. Must it be the CPU? I sent the board back with RMA, and they replaced the CPU with a new one from Intel. Still facing the exact same issue. Is it related to the AI Tweaker settings?
The problem seems so specific to the CPU configuration in the AI Tweaker.
It's quite odd—I can reach Windows easily if I load OPTIMIZED DEFAULTS, then just switch the PCH Storage Sata controller to RAID to access my RAID volume and boot.
But certain actions will still cause the BSOD after Windows logo appears... (without touching anything else!)
1) Changing CPU Core Ratio from AUTO to SYNC ALL Cores, even if I leave all cores at Auto (stock) or even if I downclock the CPU!
2) Disabling Intel Speedstep.
If I do both, I can re-enable it to access Windows, but if I only change to AUTO, the issue persists until I reload optimized defaults (even though other settings in AI Tweaker remain unchanged).
I've run MEMTEST with several passes on my G.Skill Ripjawz 2666mhz (tested at speeds as low as 1866), and the blue screen appears consistently.
The error message reads:
MACHINE CHECK EXCEPTION
STOP 0X0000009C (0X000000000000012) (0XFFFFF880026D6D30) (0X00000000FE200000)(0X0000000000041136)
Also, it's important to note that once I interact with the AI Tweaker, this blue screen occurs regardless of any changes, even in Safe Mode.
I tried a core voltage of 1.3, but I didn't consider it necessary—it's not about the overclock itself, but rather doing anything outside the optimized defaults (like downclocking or keeping stock settings but turning off ratio -> auto) will trigger this crash.
What options do I have?
T
ThroatSlash
01-02-2024, 05:41 PM #1

I revised my initial post but it was flagged as solved; I couldn't find a way to unmark it, so here it is with the update... 4 months have passed.
I'm attempting to overclock an i7 5820K on an ASUS X99 Pro motherboard (latest BIOS). When starting with default BIOS settings that let me boot into Windows, changing the CPU Ratio from AUTO to SYNC ALL CORES in BIOS will trigger a BSOD upon saving and restarting—regardless of other adjustments. I've tried keeping every other setting at their defaults, setting the Ratio to stock speed (33), and even reducing clock speeds. Still, I end up with a 9C blue screen until I revert the Ratio back to AUTO. Using the "OC TUNER" in BIOS attempts an automatic overclock to 4GHz while leaving all other parameters at Auto. I've also increased the core voltage without success, which raises the question: why would I need to raise core voltage if I'm maintaining the CPU speed at or below stock levels?
Thanks in advance for any help.
UPDATE: 4 Months later, my PC still isn't working.
I returned the motherboard to ASUS RMA, but they sent me the identical board again. Then I bought a brand new ASUS x99 Pro from my local microcenter and installed the parts on the new motherboard. The same problem persisted. Must it be the CPU? I sent the board back with RMA, and they replaced the CPU with a new one from Intel. Still facing the exact same issue. Is it related to the AI Tweaker settings?
The problem seems so specific to the CPU configuration in the AI Tweaker.
It's quite odd—I can reach Windows easily if I load OPTIMIZED DEFAULTS, then just switch the PCH Storage Sata controller to RAID to access my RAID volume and boot.
But certain actions will still cause the BSOD after Windows logo appears... (without touching anything else!)
1) Changing CPU Core Ratio from AUTO to SYNC ALL Cores, even if I leave all cores at Auto (stock) or even if I downclock the CPU!
2) Disabling Intel Speedstep.
If I do both, I can re-enable it to access Windows, but if I only change to AUTO, the issue persists until I reload optimized defaults (even though other settings in AI Tweaker remain unchanged).
I've run MEMTEST with several passes on my G.Skill Ripjawz 2666mhz (tested at speeds as low as 1866), and the blue screen appears consistently.
The error message reads:
MACHINE CHECK EXCEPTION
STOP 0X0000009C (0X000000000000012) (0XFFFFF880026D6D30) (0X00000000FE200000)(0X0000000000041136)
Also, it's important to note that once I interact with the AI Tweaker, this blue screen occurs regardless of any changes, even in Safe Mode.
I tried a core voltage of 1.3, but I didn't consider it necessary—it's not about the overclock itself, but rather doing anything outside the optimized defaults (like downclocking or keeping stock settings but turning off ratio -> auto) will trigger this crash.
What options do I have?

K
kenken0724
Member
178
01-02-2024, 05:41 PM
#2
Thank God I read your post here... I was considering purchasing a Haswell-E but have noticed no discussions about the obvious issues in a first-generation model like the 5820K. Now I’m thinking I’ll wait a few months to observe what’s coming next for Hexa-core processors in Intel.
K
kenken0724
01-02-2024, 05:41 PM #2

Thank God I read your post here... I was considering purchasing a Haswell-E but have noticed no discussions about the obvious issues in a first-generation model like the 5820K. Now I’m thinking I’ll wait a few months to observe what’s coming next for Hexa-core processors in Intel.

I
iiroAN
Junior Member
13
01-02-2024, 05:41 PM
#3
Why would you want to SYNC ALL CORES? Your CPU, like all modern multi-core CPUs, is built to switch between nearly being off and running at full speed in a fraction of a second. Keep that in mind.
I
iiroAN
01-02-2024, 05:41 PM #3

Why would you want to SYNC ALL CORES? Your CPU, like all modern multi-core CPUs, is built to switch between nearly being off and running at full speed in a fraction of a second. Keep that in mind.

B
bkennes
Junior Member
48
01-02-2024, 05:41 PM
#4
Nipples The Clown :
I updated my original thread but it was marked as solved, I didn't see a way to unmark that, so here it is with the update... 4 months later.
I'm trying to OC an i7 5820K on an ASUS X99 Pro motherboard (latest BIOS) When starting with default BIOS settings that will allow me to get into Windows, once I change the CPU Ratio from AUTO to SYNC ALL CORES in BIOS I will get a BSOD upon saving and restarting - no matter what. I have tried leaving every other setting at the default as well as setting the Ratio to stock speed (33) and even down-clocking ! No matter what I will yield a 9C blue screen until I return the Ratio from SYNC ALL CORES back to Auto. If I use the "OC TUNER" in BIOS it will do some kind of 'auto overclock' to 4ghz but leave all other settings at Auto. I've also tried increasing the core voltage to no avail but it also begs the question of ... why would I need to increase core voltage if I'm keeping the CPU speed at or UNDER stock in my testings?
Thanks in advance for any assistance.
UPDATE: 4 Months later I still don't have a working PC.
I sent my motherboard back to ASUS RMA but they sent me the exact same board back. I then went to my local microcenter and purchased a NEW ASUS x99 Pro (my original being from newegg) and installed my parts in the new motherboard. Same EXACT issue. Has to be the CPU, right? I return the board, and RMA my CPU. Intel sends me a new chip and yet again the exact SAME issue. It's neither my MOBO or CPU? Really? The problem is so specific to the CPU settings in AI tweaker.
It's such a strange issue in that I can get to Windows fine if I LOAD OPTIMIZED DEFAULTS, then just change PCH Storage Sata controller to RAID so I can access my raid volume and boot.
However, the following will cause the BSOD after windows logo... (while touching NOTHING else !)
1) Changing CPU Core Ratio from AUTO to SYNC ALL Cores, even if I leave all cores at auto (stock) or even if I DOWNCLOCK the CPU !
2) Disabling Intel Speedstep.
If I do 2 I can then re-enable it to get access to windows but I if I do 1 even setting sync all cores back to auto will not work, until I reload optimized defaults (despite it not changing anything else in the AI Tweaker)
I've ran MEMTEST and had several passes with no errors on my G.Skill Ripjawz 2666mhz (which I've tried at speeds as low as 1866 as well).
Blue Screen shows the following-
MACHINE CHECK EXCEPTION
STOP 0X0000009C (0X000000000000012) (0XFFFFF880026D6D30) (0X00000000FE200000)(0X0000000000041136)
Also worth noting that once I've touched the AI Tweaker that this blue screen will occur no matter what, even attempting safe mode.
I tried a core voltage of 1.3 but I didn't even think it was worth mentioning because it's not a matter of the overclock itself... it's a matter of doing ANYTHING outside of optimized defaults (even downclocking or keep stock settings but turning off ratio -> auto) will cause this crash.
What can I do?
Do you have a quality PSU?
B
bkennes
01-02-2024, 05:41 PM #4

Nipples The Clown :
I updated my original thread but it was marked as solved, I didn't see a way to unmark that, so here it is with the update... 4 months later.
I'm trying to OC an i7 5820K on an ASUS X99 Pro motherboard (latest BIOS) When starting with default BIOS settings that will allow me to get into Windows, once I change the CPU Ratio from AUTO to SYNC ALL CORES in BIOS I will get a BSOD upon saving and restarting - no matter what. I have tried leaving every other setting at the default as well as setting the Ratio to stock speed (33) and even down-clocking ! No matter what I will yield a 9C blue screen until I return the Ratio from SYNC ALL CORES back to Auto. If I use the "OC TUNER" in BIOS it will do some kind of 'auto overclock' to 4ghz but leave all other settings at Auto. I've also tried increasing the core voltage to no avail but it also begs the question of ... why would I need to increase core voltage if I'm keeping the CPU speed at or UNDER stock in my testings?
Thanks in advance for any assistance.
UPDATE: 4 Months later I still don't have a working PC.
I sent my motherboard back to ASUS RMA but they sent me the exact same board back. I then went to my local microcenter and purchased a NEW ASUS x99 Pro (my original being from newegg) and installed my parts in the new motherboard. Same EXACT issue. Has to be the CPU, right? I return the board, and RMA my CPU. Intel sends me a new chip and yet again the exact SAME issue. It's neither my MOBO or CPU? Really? The problem is so specific to the CPU settings in AI tweaker.
It's such a strange issue in that I can get to Windows fine if I LOAD OPTIMIZED DEFAULTS, then just change PCH Storage Sata controller to RAID so I can access my raid volume and boot.
However, the following will cause the BSOD after windows logo... (while touching NOTHING else !)
1) Changing CPU Core Ratio from AUTO to SYNC ALL Cores, even if I leave all cores at auto (stock) or even if I DOWNCLOCK the CPU !
2) Disabling Intel Speedstep.
If I do 2 I can then re-enable it to get access to windows but I if I do 1 even setting sync all cores back to auto will not work, until I reload optimized defaults (despite it not changing anything else in the AI Tweaker)
I've ran MEMTEST and had several passes with no errors on my G.Skill Ripjawz 2666mhz (which I've tried at speeds as low as 1866 as well).
Blue Screen shows the following-
MACHINE CHECK EXCEPTION
STOP 0X0000009C (0X000000000000012) (0XFFFFF880026D6D30) (0X00000000FE200000)(0X0000000000041136)
Also worth noting that once I've touched the AI Tweaker that this blue screen will occur no matter what, even attempting safe mode.
I tried a core voltage of 1.3 but I didn't even think it was worth mentioning because it's not a matter of the overclock itself... it's a matter of doing ANYTHING outside of optimized defaults (even downclocking or keep stock settings but turning off ratio -> auto) will cause this crash.
What can I do?
Do you have a quality PSU?