Clevo P750TM Voltage not applying correctly?

[ClassicGuy]

I decided today to just make an account instead of just browsing topics day after day trying to see if anyone else has my issue, I have been trying to undervolt my Clevo P750TM1-G, well the Sager variant of it. I can set my voltage as low as I want in throttlestop but it will always be about 0.1-0.3v higher, and fluctuates a lot. I really want to find a way to stabilize my voltage so I can undervolt my i7-8086k as much as humanly possible, cause the cooling in the stock configuration isnt great and I dont exactly got the money to just buy upgraded cooling right now. I have even tried setting the voltages in the EFI, which is stock and that didnt fix the voltage issues either. I made a short recording of how much it fluctuates at idle, and it can get even worse sometimes. Are my VRMs screwed up? 

[Maro97]

Update Bios to Dsanke which support 9900ks & 128GB ram and the EC Bios 

[ClassicGuy]

16 hours ago, Maro97 said:

Update Bios to Dsanke which support 9900ks & 128GB ram and the EC Bios 

Installing Dsanke will fix the voltage issues?

[Maro97]

On 8/25/2026 at 1:57 AM, ClassicGuy said:

Installing Dsanke will fix the voltage issues?

Yes.. it should be 

[SuperMG]

@Maro97

 

Is an 9900K at 5.2GHz 1.37V fixed (meaning it can do 1.25V on 5GHz) a top binned CPU? Better than 9900KS?

[Maro97]

17 hours ago, SuperMG said:

@Maro97

 

Is an 9900K at 5.2GHz 1.37V fixed (meaning it can do 1.25V on 5GHz) a top binned CPU? Better than 9900KS?

My friend, all of this depends on the silicon lottery, regardless of the CPU model. Low voltage at high frequencies is purely a matter of silicon lottery, no matter what.

[SuperMG]

2 hours ago, Maro97 said:

My friend, all of this depends on the silicon lottery, regardless of the CPU model. Low voltage at high frequencies is purely a matter of silicon lottery, no matter what.

Hello, You didn't answer to my question 

 

Is an 9900K at 52x all core at 1.37V fixed Vcore and AVX2 -2 is a golden sample/top binned or not?

 

New question: do you know where to find one?

 

Thanks.

[Maro97]

Yes, I would consider a 9900K running 5.2 GHz all-core at 1.37V fixed Vcore with AVX2 -2 to be a very good chip, definitely above average and potentially a golden sample/top-binned chip. However, the exact bin quality also depends on stability and the test workload, since some chips can pass light benchmarks at that voltage but need more voltage under heavy AVX2 loads.

As for where to find one, unfortunately there’s no reliable way to know beforehand. It’s basically silicon lottery. The best option is to find a seller who can provide actual CPU-Z/HWiNFO screenshots and, ideally, proof of stability at 5.2 GHz / 1.37V.

If I come across a properly tested 9900K with these characteristics, I’ll let you know.

[SuperMG]

2 minutes ago, Maro97 said:

Yes, I would consider a 9900K running 5.2 GHz all-core at 1.37V fixed Vcore with AVX2 -2 to be a very good chip, definitely above average and potentially a golden sample/top-binned chip. However, the exact bin quality also depends on stability and the test workload, since some chips can pass light benchmarks at that voltage but need more voltage under heavy AVX2 loads.

As for where to find one, unfortunately there’s no reliable way to know beforehand. It’s basically silicon lottery. The best option is to find a seller who can provide actual CPU-Z/HWiNFO screenshots and, ideally, proof of stability at 5.2 GHz / 1.37V.

If I come across a properly tested 9900K with these characteristics, I’ll let you know.

Thanks either a 9900K or 9900KS. Can pay 350 to 380€ with shipping fees.

 

[Maro97]

There isn’t a big difference in performance between the 9900K and 9900KS.

Even running at 5.0 GHz, 5.1 GHz, 5.2 GHz, or 5.3 GHz on all cores, the performance difference isn’t significant. At most, you’re looking at around 5–10 FPS on average, and that’s only if you can keep the temperatures under control with air cooling.

With a closed-loop liquid cooler (AIO), the thermal situation may improve, allowing you to push the CPU further. However, you still won’t gain more than around 12–14 FPS at most.

[SuperMG]

On 9/1/2026 at 11:34 PM, Maro97 said:

There isn’t a big difference in performance between the 9900K and 9900KS.

Even running at 5.0 GHz, 5.1 GHz, 5.2 GHz, or 5.3 GHz on all cores, the performance difference isn’t significant. At most, you’re looking at around 5–10 FPS on average, and that’s only if you can keep the temperatures under control with air cooling.

With a closed-loop liquid cooler (AIO), the thermal situation may improve, allowing you to push the CPU further. However, you still won’t gain more than around 12–14 FPS at most.

Did you try using the powerful fans for P870? It's the same as the P775. There are lots of leaves which could give you +25CFM

 

Do you know how to set a fixed voltage in the P870/P775? I can only set an undervolt.

LLC is auto.

 

I did -75mV for 4.9GHz all cores. I get 1.27V max reading in HWINFO for the cores at 4.9GHz with AVX -2 on the CPU-Z benchmark.

CPU is 9900KF R0

[SOYOON]

5 hours ago, SuperMG said:

Did you try using the powerful fans for P870? It's the same as the P775. There are lots of leaves which could give you +25CFM

 

Do you know how to set a fixed voltage in the P870/P775? I can only set an undervolt.

LLC is auto.

 

I did -75mV for 4.9GHz all cores. I get 1.27V max reading in HWINFO for the cores at 4.9GHz with AVX -2 on the CPU-Z benchmark.

CPU is 9900KF R0

Do you sell this cpu? How much? My i7 9700k is trash it can only sustain 4.7 after a not so stable -100mv in windows, otherwise it will insanely edp other

[SuperMG]

2 hours ago, SOYOON said:

Do you sell this cpu? How much? My i7 9700k is trash it can only sustain 4.7 after a not so stable -100mv in windows, otherwise it will insanely edp other

I'll sell but I don't think it's a good bin. It bsod at -100mV. I can -80mV for 4.7GHz to 4.9GHz all cores. 

[SOYOON]

4 minutes ago, SuperMG said:

I'll sell but I don't think it's a good bin. It bsod at -100mV. I can -80mV for 4.7GHz to 4.9GHz all cores. 

Thats the mystery im trying to solve, do you 4.9 while udner load? Or edp other back to 4.7?

[SuperMG]

12 minutes ago, SOYOON said:

Thats the mystery im trying to solve, do you 4.9 while udner load? Or edp other back to 4.7?

I don't know why, core 0 was maxing at 4.7GHz while the other were maxing at 4.9GHz during the CPU-z tests. AVX -2.

 

Is there a way to set fixed Vcore on P775? I have an unlocked BIOS with all the settings.

[SOYOON]

32 minutes ago, SuperMG said:

I don't know why, core 0 was maxing at 4.7GHz while the other were maxing at 4.9GHz during the CPU-z tests. AVX -2.

 

Is there a way to set fixed Vcore on P775? I have an unlocked BIOS with all the settings.

I dont have a bios with all the settings, something is making me edp other while under load, the vcore cant surpass 1.27v if surpass itnlower the clock

[SOYOON]

I want to know if you did changed this LLC or vdroop, because mine if no undervolt cant even idle at 4.7ghz regular temps cuz edp other will be firing constantly and yes 255A (1023) limit set in bios

[SuperMG]

12 minutes ago, SOYOON said:

I want to know if you did changed this LLC or vdroop, because mine if no undervolt cant even idle at 4.7ghz regular temps cuz edp other will be firing constantly and yes 255A (1023) limit set in bios

How do you see that in the unlocked BIOS?

[SOYOON]

Edp other is eletrical design point and other reason, it shows in trottle stop or HWINFO under IA limit reason or core limit reasons

But can you tell me what you changed in your magical dsanke bios?

Also if non undervolted do you still achieve 4.9 or 4.7 in idle???

[SOYOON]

5 hours ago, harkaz said:

All latest versions of dsanke BIOS and EC work properly.

 

13 hours ago, SuperMG said:

How do you see that in the unlocked BIOS?

Bro nevermind i managed to bios mod my own bios and now i have the power of the sun 5ghz stable at 1.25mv all cores, man im so happy i worked 8 hours into that

[SuperMG]

10 minutes ago, SOYOON said:

 

Bro nevermind i managed to bios mod my own bios and now i have the power of the sun 5ghz stable at 1.25mv all cores, man im so happy i worked 8 hours into that

What do you mean by that?

 

You deceloped a new bios or you optimized the BIOS settings?

 

If optimized, where did you set the Vcore?

 

You mean 1.25V? 1.25mV is very very tiny.

[SOYOON]

53 minutes ago, SuperMG said:

What do you mean by that?

 

You deceloped a new bios or you optimized the BIOS settings?

 

If optimized, where did you set the Vcore?

 

You mean 1.25V? 1.25mV is very very tiny.

I just edited the already existing eurocom bios, implemented the ME from the dsanke one, kept the special features this bios had factory from eurocom, and edited some things, but cranked all power and voltage regulators limits up, agressive LLC and shyt, but tbh it just unlocked the true potential of the chip i will investigate more as stated before i could already put -100mv on the cpu beforehand(also i havent slept so im zombie af)

[SuperMG]

9 minutes ago, SOYOON said:

I just edited the already existing eurocom bios, implemented the ME from the dsanke one, kept the special features this bios had factory from eurocom, and edited some things, but cranked all power and voltage regulators limits up, agressive LLC and shyt, but tbh it just unlocked the true potential of the chip i will investigate more as stated before i could already put -100mv on the cpu beforehand(also i havent slept so im zombie af)

It's a P750 or a P775? p775TM1 has a limit of 188A and it's unlocked too. You could push to 250W

[SOYOON]

2 minutes ago, SuperMG said:

It's a P750 or a P775? p775TM1 has a limit of 188A and it's unlocked too

P750TM1

[SuperMG]

2 hours ago, SOYOON said:

P750TM1

Did you fix the high voltage spikes? Like 1.45V and above? What settings is it? Is it the load line calibration? I can't seem to find in my unlocked P775TM bios

 

Also do you plan on getting a custom made much more powerful air heatsink for your laptop? That can also do watercooling and let's not forget to add the powerful fans for it (available on AliExpress). You'll get much better temps.