my clock cpu

[sondeptrai]

my clock cpu drop from 3 ghz to base clock 2.4. is any solution ? while stressing test 

[NonSequitur777]

@sondeptrai,

Welcome to our HP Community forum!

Thank you for your question!

The HP Pavilion 15-eg0005TX (equipped with the Intel Core i5-1135G7) is designed with thermal and power management features that can cause the CPU clock speed to drop during heavy workloads like stress testing. This is usually normal behavior, but here are a few steps you can try to minimize the performance drop:

1. Check for Thermal Throttling:

• If the CPU temperature goes above ~95°C, it will automatically lower its speed to protect the hardware.

• Solution: Make sure the laptop's air vents are clean and unobstructed. You can also try using a laptop cooling pad to improve airflow.

• Use tools like HWMonitor or Core Temp to monitor CPU temperatures during stress tests.

 

2. Power Limits (PL1/PL2):

• HP laptops often limit CPU power consumption (for heat and battery life reasons).

• Solution: You can try using tools like Intel XTU or ThrottleStop to check if the CPU is being limited by power. Note: not all HP BIOS/firmware allow modifications through these tools.

 

3. BIOS and Drivers:

• An outdated BIOS or chipset driver can sometimes lead to power management issues.

• Solution: Make sure your BIOS and all drivers are up to date. You can use HP Support Assistant or check HP’s official support page.

4. Power Source:

• Make sure you're plugged into AC power during testing. On battery, the CPU will automatically downclock to save power.

• Also, confirm you're using the original HP power adapter to ensure proper power delivery.

Let me know your thermal readings under load, and I may be able to offer more targeted help if needed!

Kind Regards,

NonSequitur777

[sondeptrai]

my clock cpu drop while my temperature is normal below 90 c

[NonSequitur777]

@sondeptrai,

Thanks for the update. Since your CPU temperature remains below 90°C during stress testing, the clock speed drop is likely due to power limit throttling rather than thermal throttling.

Here are some additional steps you can try:

1. Check Power Limit (PL1/PL2) Throttling:

Even with safe temperatures, the system may still reduce CPU speed if it hits PL1 (sustained power limit) or PL2 (turbo boost limit).

• Use ThrottleStop or Intel XTU to monitor CPU power limits.

• Look for indicators such as "Power Limit Throttling" in the logs or during active monitoring.

⚠️ Note: Many HP consumer laptops (like Pavilion series) lock down these limits at the BIOS level and may not allow you to change them.

 

2. Ensure Maximum Performance Power Profile:

• Go to Control Panel > Power Options.

• Select High Performance or create a custom plan with the minimum and maximum processor state set to 100%.

• Disable any CPU power-saving features like Intel SpeedStep in BIOS (if available).

 

3. BIOS Settings:

• While HP often locks advanced settings, check if your BIOS has any options for:

  • Performance modes

  • CPU power management

  • SpeedStep or C-states

If available, try setting to "Performance" or "Max Performance".

4. Battery and Adapter Check:

• Ensure the laptop is plugged into AC power.

• Confirm that the power adapter is genuine HP and rated correctly (65W or 90W).

  • Underpowered adapters can trigger power limit behavior.

 

5. Realistic Expectation:

• The Intel Core i5-1135G7 has a base clock of 2.4 GHz and a turbo boost up to ~4.2 GHz, but sustained boost during stress tests (e.g., Prime95) is often not possible due to power constraints in thin-and-light laptops.

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Summary:

Your temperatures are okay, so the CPU is probably being power-limited by HP’s firmware design. You may be able to observe but not override this behavior depending on your BIOS and firmware. If you can share a screenshot of ThrottleStop or Intel XTU during the test, I can help interpret it.

Here is how you would set up ThrottleStop to diagnose this further:

Here's a step-by-step guide to help you set up and use ThrottleStop to diagnose power limit throttling on your HP Pavilion 15-eg0005TX (i5-1135G7):

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1. Download and Extract ThrottleStop:

• Download the latest version of ThrottleStop from TechPowerUp:
  https://www.techpowerup.com/download/techpowerup-throttlestop/

• Extract the ZIP file to a folder on your desktop.

• Run ThrottleStop.exe as Administrator.

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2. Understand the Main Window:

ThrottleStop will show real-time CPU data. Focus on these areas:

• FIVR/VRM Limit Reasons: Indicates if power limit throttling is happening.

• TPL (Turbo Power Limits): Displays your PL1 and PL2 settings.

• C0%: Shows how busy your CPU is.

• Multiplier: Tells you the active CPU multiplier (should be 24x at 2.4GHz, 42x at 4.2GHz).

• "Limit Reasons" button: Click this to see what is actively throttling the CPU (e.g., PL1, PL2, Thermal, EDP, etc.).

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3. Set Up for Diagnostics:

You’re not modifying anything yet -just monitoring.

1. Start a stress test in the background (e.g., Cinebench R23, Prime95, or AIDA64).

2. While the stress test is running, go back to ThrottleStop and click on "Limit Reasons".

3. Watch the checkboxes:

   • If "PL1" or "PL2" lights up yellow or red, you are being power-throttled.

   • If "Thermal" lights up, then it’s temperature-related.

   • If "EDP OTHER", it could be BIOS-enforced current limits or internal firmware limits.

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4. Share a Screenshot:

Take a screenshot of:

• The ThrottleStop main window while the stress test is running.

• The "Limit Reasons" window (keep it open at the same time).

Upload it here, and I’ll help interpret exactly what’s causing the CPU clock drop.

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Important Notes:

• Don't modify any settings yet unless you know what you're doing.

• HP consumer laptops (especially Pavilion) typically do not allow PL1/PL2 modification—but this diagnostic step will at least confirm that power limits are the issue.

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Let me know once you’ve got the screenshot(s), or if you run into any trouble setting it up.

Kind Regards,

NonSequitur777