Subject: Tutorial: How to overclock Vishera FX processors in practice

March 8, 2022 by No Comments

APM space for power management applications. All this is only to reduce the power consumption of the program’s processor in order to save power saving, or when the specified bit application or software uses the Titanz function.

APM stands for Application Power Management. All it does is lower the system’s CPU power to conserve or maintain power when said application or software uses the Titanz aspect.


AMD FX-series processors, in combination with some 9-series chipsets, allow you to disable APM (Application Power Management). Below is the official AMD FX performance guide, setup pages 5-10. On page 5 it says:

Because APM sets a predefined TDP limit, it is generally recommended to
Disable AMD Turbo Core Technology and APM if
Applications increase the CPU frequency and exceed the default values.

In short, the AMD Application Power Management BIOS provides CPU utilization.
which remains in some (8 cores of 125 W) or 95 W (4 and 6 cores) was tdp
generation chip. I saw how many APM reports do not work with the processor.
Gas is both true and false. It is true that APM
causes it sometimes, but suffocation is not always what it does. Exist
If you do this, the voltage will drop a bit if the CPU stays in a warning state.
higher rate.

Besides, of course, the painMost motherboard enthusiasts these days offer a Load feature called Line Calibration (LLC). From forum user Linus Tech Tips:

Vdroop is the voltage drop as the CPU grows at which it is measured;
Basically, if one goes from idle to a full basket, they will reduce stress.
Considering the low voltage tolerance that overclockers train with
(Increase in proportion to the voltage of a specific CPU frequency/multiplier
which overclocking can achieve), the applied voltage into the dropout voltage that the CPU can
make unstable theoretically protected overclocking (voltage drop
less than required to reach the specified frequency)

Should I disable APM master mode?

Disabling APM completely will cause your processor to run out of range At 125W TDP. Basically, you are taking more current and voltage and generating more power for very little benefit.

The target group is defined using the difference (X) and Vcore (Y) values ​​measured without the need for LLC:

Please note that the actual Vcore offer is still lower than expected.

What is APM mode in BIOS?

advanced (APM) is an API released by Intel and Microsoft and developed in 1992 that allows an operating system running on an IBM-compatible personal computer with a BIOS (part of that particular computer’s firmware) to perform energy therapy to achieve a goal. Microsoft ended support for APM windows in Vista.

In the following image, we can see the idea that for this particular processor (i7 3930K) and MoBo Rampage (asus IV One Extreme), setting LLC to “High” (i.e. a value of 50%) is enough to make this do. compensatorsdrop vdroop :


What is APM mode in BIOS?

Advanced Authority Power (APM) is an API developed by Intel and Microsoft and released in 1992 that allows the operating system on a computer to be compatible withwith IBM Personal, work with (part of the computer’s Filemodo firmware) for power management. Microsoft ended support for APM in Windows Vista.

I’m wondering if it’s better to disable APM and (most likely) stick with a lower LLC amount (sometimes not everything is needed) or leave APM enabled and just fall back to a much better LLC setting. to keep everything stable. My concerns are in this order:

  • System stability
  • IT Reliability
  • System lifetime (less important)
  • Heat dissipation and power consumption (even small)
  • (Additional information)
    The reason for this is an obvious question, as a higher setting causes llc to cause short voltage spikes on the CPU core, as already mentioned in the specific question: > and also in this Master’s Lair post. Quote:

    If you have a decent motherboard calibration, the load lines don’t work very well.
    Buy everything you need in the excellent overclocking text (…). It artificially lowers the Vcore you need to adjust.
    in your BIOS, but the processor currently requires the number
    Tension even under severe stress.

    I would recommend getting rid of Disabled if [llc] you don’t think so
    May bit’s hard to get the desired overclocking
    and I suspect that the problem is too large vdroop.

    However, I suspect that APM does more than “just” enforce a global TDP limit, and so it should be seriously enabled, if possible, remain enabled despite suggestions to the contrary. But then again, it also looks like it’s creeping in apm and so the instability should have a higher LLC, which in itself should be worse. CPU:

    - FX-6350 @ 4.8GHz default (assumed to be 3.9)
    - Motherboard: Asus Sabertooth 990FX R2.0
    - Turbo disabled
    - Core voltage: CPU bias: +0.09375V
    - APM master mode: enabled
    - Status C1E, C6, Cool'n'Quiet: all activated (on)
    - CPU Line Calibration: Ultra Loads (75%)
    - very good CPU phase control: Standard
    - CPU power management: C.Probe Spread (current)
    - Spectrum disabled by CPU, for CPU-NB and VRM.

  • I’ve already done this for temp speed due to LLC High (50%) but after 4:30 testing I got a calculation error related to Prime95 compatible offset with Vcore 100mV (+0.1) . I have

  • I then reduced the lag to 6.25 mVjust changed LLC to Ultra High, the problems are gone.

  • What is APM function?

    Application performance monitoring (APM) can be a key practice of tracking application performance metrics from systems using monitoring systems and telemetry data. Physicians use APM to ensure system availability, optimize quality of service and response time, and optimize user experience.

    However, this load typically increases the voltage by 20 mV at the base and 12 mV at peak (resulting in at least 0.488 than V) during certain load transients, which in particular is slightly higher ideal.

  • The CPU temperature was 63 °C, the maximum after several hours of work during the day. This is an air-cooled application cooler (although it is a respectable Hyper 212X) that has worked well for 2 years at -85mV bias, for example (on power up)

  • I would like to continue working on it for another year.

  • Finally, I apologize for being late, although I have been busy for the last few days. But it’s within reach. I have had some C5F products with and saved bios screenshots. So after this experience I made all bios screenshots on C5F-Z with and FX-9590. These settings may match good coolers and fx Vishera all-in-one.

    Notes. Green – options
    important less red options = much more important for Alt=”” oc

    What is HPC mode in BIOS?

    The actual HPC can be found in the >Advanced Configuration<>CPU<. It is used in the market to prevent the CPU from stalling or slowing down its speed by locking the clock speed. It can be said to be an energy-saving device that allows the processor to regulate itself in idle mode.

    Is alwaysset AMD Core Trubo to “disabled” at high clock speed
    CPU and PCIe spanning is always disabled for high frequency CPUs.
    A DOCP profile helps you set up storage. It’s something like Asus for the amd xmp profile. Usually there can be one or two profiles here. But remember that the effective DRAM clock speed must be less than, almost or equal to CPUNB!!!

    For voltage, you can manually set the balance or. Compensation is more important for safe energy consumption. price His CPU/CPUNB VID delta. Remember that each CPU has a different VID voltage, and each CPU has a different drain (= how hot it gets when voltage is increased, which is good for overclocking). For CPU max range 24/7 1.425 at 1.55V (according to drain) Allinone type H100, H100i, Thermaltage Water 3, NZXT Extreme, Kraken, CM Nepton etc. With this range you can reliably stabilize -5100 4700 about MHz.
    For CPUNB, a maximum of around 1.3 refers to the East inclusive 24/7. In this case, you can work stably at a frequency of 2500-2700 MHz. The quality of the IMC is different from the excellent quality of the chip! processop OC cpunb should be hotter for the chip, more problems with the IMC for the processor and with it for the processor, but it affects a little…

    VDDA CPU voltage can make your shooter unpredictable. For example, you work without a break for 15 minutes, and after that you get a PC BSOD or errors. Sometimes +0.1 or just V +0.2 can help with this clearance.

    DRAM voltage is correct 1.5-1.7 24/7v for. With the existing lower frequency low around 1.6-1.65V, you can provide a higher De CPU frequency even for DRAM clocks (with lower DRAM home lighting around 1600-1866MHz, it is easier to achieve a higher CPU frequency)

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    What is APM function?

    Application Performance Monitoring (APM) is generally the practice of tracking key performance metrics of software package applications using computer monitoring and telemetry software. Practitioners use APM to ensure system availability, optimize performance and response times, and restore user experience.Power