avierywan
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Hello, I noticed that the latest BIOS version (v1.12) has power/current limits that are limiting my core and ring ratios, and there are no bios settings related to this that can be modified. This becomes immediately obvious when running stress tests like prime95; with my older BIOS version, I'm able to run 5.0ghz prime95 avx workloads without issue on my water cooled 8600k, but the latest bios limits it to 4.5ghz. "Current/EDP Limit Throttling" in XTU, or "Electrical Design Point/Other (ICCmax, PL 4, SVID, DDR RAPL) in hwinfo64. The BIOS version I upgraded from was v1.07. Is there any workaround to this? *The only way to avoid this, as far as I know is to not update bios past version 1.08, or get get a custom BIOS. All later versions will throttle power to the CPU.
post edited by avierywan - 2021/05/02 09:52:06
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eighty_D
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Re: Current/EDP Limit Throttling on EVGA Z370 Micro ATX after updating BIOS
2020/11/12 06:37:34
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I just came here to ask for help with the same problem, updated for 9th gen and am throttling at ~160w 110A. Please share if you find a solution.
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eighty_D
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Re: Current/EDP Limit Throttling on EVGA Z370 Micro ATX after updating BIOS
2020/11/15 14:08:09
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Noticed there was a new bios V1.13, updated and there was no change. still current throttling. Tried maxing all the power sliders in XTU with the same results.
post edited by eighty_D - 2020/12/10 21:38:21
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Lion99999
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Re: Current/EDP Limit Throttling on EVGA Z370 Micro ATX after updating BIOS
2020/11/27 12:56:26
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Sorry you are having that issue but thank you for posting here. You saved me some near future headache! I just ordered a Pentium G5400 so I can update my Z370 Micro Bios that sat on the shelf brand new for years. I was going to update to 1.13 but now that you posted this, I am going to flash to 1.11. I am building another 9900k system with 32Gb 3600 Cl16 G Skill (2X16gb) Ram with a backup GPU (MSI RX590). I don't have access to an 8gen intel chip to update the Bios and live in a small rural town in southern Washington. I had to literally purchase the cheapest 8th gen chip ($65+tax Newegg) just so I can update the Bios. Paid $99 for the Micro years ago... so if I add in the $25 I spent on RMA shipping the first brand new Z370 Micro I had, +$70 Pentium G5400, I am still not doing bad. I don't plan on doing any manual overclocking but I will enable all core enhancement, max turbo duration, XMP profile for Ram 3600 Cl16. My original 9900k on the MSI AC Gaming Edge actually seemed snappier NOT manually overclocking. I tried both ways. It still does 5ghz all core on its own with default settings in the BIOS. No idea what to expect with default settings on the Z370 Micro with 9900k. I will post an update once I receive everything. Side note: Gamers Nexus, Jayztwocents, Hardware Unboxed, Kitgurutech, many others...all claim Nvidia launched new video cards (3080 - 3090) and AMD launched new cards (6800XT - 6900XT). If you check stock, NOBODY HAS ANY FOR SALE! Maybe its the Mandela effect? lol Rumors on WCCFTECH claim a 3080ti with more vram is coming in 2021. Hope thats true! Wife needs an upgrade from her 1080ti FTW3 (DT)! 3080ti FTW3 would be a nice birthday/xmas/anniversary present!
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eighty_D
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Re: Current/EDP Limit Throttling on EVGA Z370 Micro ATX after updating BIOS
2020/12/02 19:47:37
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Lion99999 the G5400 should work with 300 series chipsets for Bios update. Anyone know for certain if this will work?
I used a coffee lake celeron to troubleshoot on my board. Everything worked as it should. Lion99999 I don't plan on doing any manual overclocking but I will enable all core enhancement, max turbo duration, XMP profile for Ram 3600 Cl16.
There is no MCE or configurable power limits on any Z370 micro bios version that I know of, surely none of the 9th gen bios.
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Lion99999
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Re: Current/EDP Limit Throttling on EVGA Z370 Micro ATX after updating BIOS
2020/12/03 11:07:31
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Thanks for the info. I should receive the parts today and tomorrow (newegg and amazon). I hope the new EVGA GA 750Watt series is as good as the many G+ and G2 PSUs we have. Assuming the G5400 works as your celeron did for a quick bios update...If there is no bios option for MCE and such I will try the following: -I will set vcore to 1.34 -cpu to 5ghz -turn off intel speed step (after months and dozens of hours of troubleshooting, trying every idea on youtube and forums, THAT fixed my 9900k system lockups with annoying loud steady buzz sound, requiring manual shut down) -leave on intel speed shift -re-read the cryptic instructions for EVGAs version of load line calibration (disabled means enabled or vice versa, just read it the other day again but already forgot!) -enable xmp profile for GSkill RAM 3600 Cl16
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Lion99999
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Re: Current/EDP Limit Throttling on EVGA Z370 Micro ATX after updating BIOS
2020/12/04 19:08:52
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Did anyone find a fix for this yet by chance? I updated my original thread asking if the G5400 would work to update the Z370 Micro. I received all my parts, built my system, and now my 9900k sits locked at 3600mhz no matter what I set in BIOS using Windows 10 1909! The only fix I have found seems like a pain the azz and I havent tried it yet. It was a long reddit post explaining that windows update put a file in with their update that limits what cpus are allowed to do. You have to "take control" of the file so you can change its name so windows stops enforcing it. I dont have that issue on my other 9900k MSI AC Gaming Edge Z390 but that system is windows 10 1903.
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Lion99999
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Re: Current/EDP Limit Throttling on EVGA Z370 Micro ATX after updating BIOS
2020/12/09 13:10:03
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Enable overclocking using LN2 to remove the ultra low current limit set in BIOS. Be advised, you might break your motherboard if you don't know what you are doing.
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eighty_D
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Re: Current/EDP Limit Throttling on EVGA Z370 Micro ATX after updating BIOS
2020/12/10 13:39:31
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I set extreme oc mode and that doesnt seem to change the power limits, only the voltage limits you can select. Here is what the board does in avx loads with 0 offset. 5.2ghz 1.35 set, no temp throttling on cpu or vrm. Extreme OC mode enabled, all voltages set manually. at about 160w~110A hwinfo reported vrout, the cpu throttles no matter the conditions.
post edited by eighty_D - 2020/12/10 14:02:22
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Cool GTX
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Re: Current/EDP Limit Throttling on EVGA Z370 Micro ATX after updating BIOS
2020/12/10 15:44:04
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Some security fixes from Intel would impact Performance
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eighty_D
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Re: Current/EDP Limit Throttling on EVGA Z370 Micro ATX after updating BIOS
2020/12/10 17:34:35
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avierywan "Current/EDP Limit Throttling" in XTU, or "Electrical Design Point/Other (ICCmax, PL 4, SVID, DDR RAPL) in hwinfo64
I am experiencing this exact issue, not performance per clock cycle being reduced from security patches. Intel DTS reports no thermal throttling or other performance limit flags. The cpu is power limited in some way. Reducing clockspeed and voltage or disabling cores can increase the avx load speeds as the power requirements are lower. It also only throttles at high amperage loads, even when temps have hardly came up from idle
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Kingofpici
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Re: Current/EDP Limit Throttling on EVGA Z370 Micro ATX after updating BIOS
2021/01/05 06:23:28
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Same issue here. I tried same CPU on a asus z390 maximus gene, and no more limits. CPU package power can be over 200W continously; no throtteling (current/EDP/temp...) in intel XTU... When using default bios settings on EVGA z370 micro, CPU temp can reach 100°C with Cinebench, must set manual voltage etc. to have a correct 70°C. I am a little disappointed by this motherboard (bios/uefi in fact), if I want to keep it in my computer. I think my only choice is i9 with my 2nd hand z390 maximus gene, or keeming my Z390 with a smaller CPU...
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Kingofpici
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Re: Current/EDP Limit Throttling on EVGA Z370 Micro ATX after updating BIOS
2021/01/05 06:28:47
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I expect a 1.14 bios which fix these issues, i9 9900K(F) appears to be supported by this motherboard, and it is not exactly true, even at default settings, you must change important settings to have "normal" operation. When you buy such a motherboard, I think you can expect more than a $90 B360 MB.
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eighty_D
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Re: Current/EDP Limit Throttling on EVGA Z370 Micro ATX after updating BIOS
2021/01/06 11:35:01
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I hope there is a fix. I am already looking for different matx that can fit a 4 slot gpu.
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Kingofpici
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Re: Current/EDP Limit Throttling on EVGA Z370 Micro ATX after updating BIOS
2021/02/14 05:10:25
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Hi, I installed a i3 9350K on this motherboard. Overclocked to 5.1 GHz and : Benchmark scores seems to be OK (CPUID 605 single core /2250 multi; Cinebench R15 around 800 points ...) 2 hours prime 95 without errors no throttling at all on XTU (temp or power) Temp never exceed 81°C with my Noctua NHU12A But I don't understand something : when using Hwinfo/XTU/HWmonitor...) CPU power package is always under 50W... when it is around 100W on my other motherboard (asus z390 gene) I noticed the same issue with my previous i9 cpus, is there an issue when reading sensors or something like that? I ordered a i9 9900KS I will see... for science :)
post edited by Kingofpici - 2021/02/14 05:12:36
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ceevee
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Re: Current/EDP Limit Throttling on EVGA Z370 Micro ATX after updating BIOS
2021/05/01 20:09:39
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Has this issue been solved yet? I have a 9900K on EVGA Z370 Micro 1.16 bios. I am getting Current Limit throttled. No settings available to adjust current limit in BIOS. Overclocking LN mode does not change Current Limit. XTU settings do not change Current Limit. Using the same 9900K on a cheap Asrock Z390M Pro4 does not encounter any current limit throttling, as its BIOS allows Current Limit configuration.
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eighty_D
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Re: Current/EDP Limit Throttling on EVGA Z370 Micro ATX after updating BIOS
2021/05/03 10:35:27
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At this point I don't know if it will ever be fixed, there have been 2-3 bios released since the issue was mentioned.
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ceevee
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Re: Current/EDP Limit Throttling on EVGA Z370 Micro ATX after updating BIOS
2021/05/12 12:16:12
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Is bios downgrade possible on Z370 micro? I would lose resizable bar, but get unlimited power limits. If it's possible, what is the last bios version to support unlimited power limits? Is it 1.08 indicated in the original post?
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eighty_D
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Re: Current/EDP Limit Throttling on EVGA Z370 Micro ATX after updating BIOS
2021/05/12 12:25:27
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Not with 9th gen, I have used all the compatible bios. 1.11 doesn't even work right at default settings with 9700KF, 1.12 and up all have the same power limit issue. Board seemed to work fine with 8th on earlier bios but no adjustable llc.
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abdull74
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Re: Current/EDP Limit Throttling on EVGA Z370 Micro ATX after updating BIOS
2021/05/14 01:19:06
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You might be able to flash an the older bois.
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ysesq
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Re: Current/EDP Limit Throttling on EVGA Z370 Micro ATX after updating BIOS
2021/05/21 17:38:29
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might be spectre mitigation. i would stick with old bioses.
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Limeay
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Re: Current/EDP Limit Throttling on EVGA Z370 Micro ATX after updating BIOS
2021/05/22 06:04:14
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Hi guys. This is way off topic but I bought a evga z370 micro from evga for $90 total and im having 5 beeps and d6 error code. Does that mean I need an 8th gen cpu to flash to latest bios version for a 9th gen 9700k? Thanks
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ceevee
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Re: Current/EDP Limit Throttling on EVGA Z370 Micro ATX after updating BIOS
2021/05/23 18:03:32
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I'm not sure this is going to be fixed. According to post #21 in the "X299 Dark Current/EDP limit throttling at default BIOS 1.20 settings?" thread (can't post link), they are experiencing the same thing. However, it seems like current limit throttling is removed when per core ratio is set manually or when overclocked. I tried to do the same on Z370 Micro with a 9900K, but current limit throttling remains. EDIT: It seems like a new BIOS update on X299 Dark fixed this issue. The BIOS version that contains the fix is 1.25. The release notes: - Update CPU Microcode to 6A08 (SKL-X) and 3003 (CCL-X)
- Fix PerCore voltage mapping issue for several CPUs
I think the bolded fix may also fix Current Limit throttling on EVGA Z370 with my 9900k. But the Z370 Micro bios needs to be updated.
post edited by ceevee - 2021/05/26 19:56:54
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Limeay
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Re: Current/EDP Limit Throttling on EVGA Z370 Micro ATX after updating BIOS
2021/05/28 17:23:57
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ceevee I'm not sure this is going to be fixed. According to post #21 in the "X299 Dark Current/EDP limit throttling at default BIOS 1.20 settings?" thread (can't post link), they are experiencing the same thing. However, it seems like current limit throttling is removed when per core ratio is set manually or when overclocked. I tried to do the same on Z370 Micro with a 9900K, but current limit throttling remains. EDIT: It seems like a new BIOS update on X299 Dark fixed this issue. The BIOS version that contains the fix is 1.25. The release notes:- Update CPU Microcode to 6A08 (SKL-X) and 3003 (CCL-X)
- Fix PerCore voltage mapping issue for several CPUs
I think the bolded fix may also fix Current Limit throttling on EVGA Z370 with my 9900k. But the Z370 Micro bios needs to be updated.
Would be great if they updated the micro board. I have it but yet to get it to post
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eighty_D
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Re: Current/EDP Limit Throttling on EVGA Z370 Micro ATX after updating BIOS
2021/06/05 10:03:26
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Limeay Hi guys. This is way off topic but I bought a evga z370 micro from evga for $90 total and im having 5 beeps and d6 error code. Does that mean I need an 8th gen cpu to flash to latest bios version for a 9th gen 9700k? Thanks
yes you need an 8th gen if its on an early bios. grab a cheap celeron or borrow a cpu from a friend
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Limeay
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Re: Current/EDP Limit Throttling on EVGA Z370 Micro ATX after updating BIOS
2021/06/05 10:10:43
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Celeron g4900 didn't work for some reason. Not sure why. Im going to get a i5 8500 today and reply back and tell you result. Don't have any friends with any 8th gen cpus
post edited by Limeay - 2021/06/05 12:04:17
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ceevee
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Re: Current/EDP Limit Throttling on EVGA Z370 Micro ATX after updating BIOS
2021/06/05 22:09:47
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Tried using Thottlestop (TS) to prevent Current Limit Throttling: Tried increasing IccMax under CPU Core Voltage in TS, didn't work. PP0 Current Limit setting is also not available in Turbo Power Limits setting in TS. The BIOS is locked down for any configuration of Current Limit. I wish EVGA would fix this and allow unlimited current, just like other boards. Even though the EVGA Z370 Micro has great VRMs, any production workloads using my 9900k (e.g. AVX) is crippled by current limit throttling. EDIT: FIXED: Use Thottlestop. Click on TPL box. Change Power Limit 4 (the newer name for PP0 Current Limit) max value to 0. Now I no longer get any Current/EDP Throttling. In case you want to revert the change, my default PL4 value on BIOS v1.16 was 300 for min and max.
post edited by ceevee - 2021/06/06 00:01:30
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Limeay
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Re: Current/EDP Limit Throttling on EVGA Z370 Micro ATX after updating BIOS
2021/06/06 02:46:36
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Thank you. Thats a work around. Curious if anyone at win-raid knows how to compare bios files to figure out how to fix it by looking into all the individual efi files or something. Ceevee, keep this thread active if possible if you find a fix for this.
Update: saw you commented on the z370 classified K.
I have a request for z370 micro on win-raid, hoping for someone to mod it with certain features.
Look up "[REQUEST] How do i mod EVGA Z370 Micro/help me mod this?" On win-raid.
Please add to the thread on your request for features to be added you see fit.
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Limeay
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Re: Current/EDP Limit Throttling on EVGA Z370 Micro ATX after updating BIOS
2021/06/06 12:11:06
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Reply to Ceevee: whats the purpose of telling us incase you want to revert what the value in bios was...? Is it for us users online curious of the value of the current when you set throttlestop or before you set it? Guessing this is good info for those that want to know before and after current limits for data reasons. Sorry if this comes as a offensive reply. Having hard time figuring how to respond back properly without sounding like a d*** :( Thank you very much! I own a z370 micro, this will be extremely helpful if I OC my 9700k. Once I get the pos to post in couple days with a i5 8500... still wished they had a bios update fix though.
post edited by Limeay - 2021/06/06 12:13:59
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ceevee
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Re: Current/EDP Limit Throttling on EVGA Z370 Micro ATX after updating BIOS
2021/06/06 12:25:22
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Limeay Reply to Ceevee: whats the purpose of telling us incase you want to revert what the value in bios was...?
In case someone wants to revert to the stock PL4 limit provided by the bios. The other way of reverting back to stock is exiting Throttlestop, deleting its .INI file, then powering off (not rebooting) the PC. After turning the PC back on, you can see the PL4 limit is back to stock when you run Throttlestop (I did not test this specifically for PL4 limit, but this is how to revert all forgotten Throttlestop changes back to stock in general). Any long duration heavy workloads (e.g. multiple cinebench runs) will go back to triggering a Current/EDP limit throttle.
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