BIOS ISSUE

[adadaadadad]

Help Needed: FPS Drop After BIOS Update on OMEN 25L

Hi everyone reading,

I’m reaching out because I’m experiencing a major FPS drop on my OMEN 25L Desktop G12‑1xxx after following a BIOS tweak video on YouTube. I updated my BIOS from 2021 version to 2025 version hoping for better performance, but instead it reduced my FPS significantly and caused very noticeable stutters in all games.

Before the tweak, I had amazing FPS, and my games ran perfectly smooth. I only attempted the update because I thought I might gain 10–20 extra frames, but it turns out it was completely unnecessary.

Since this is a prebuilt HP system, I don’t have access to advanced BIOS settings to manually adjust my RAM or CPU settings like you might on a custom-built PC. I want to revert to my old BIOS to restore full gaming performance.

It is a desktop not a laptop, honestly im really bummed since i was getting 300 fps+ on the games i played and now only barely 150 which is really annoying, I do not know the exact bios it was that i had previous but it was definitely from 2021.

Here’s my system information:

• Product Name: OMEN 25L G12‑1xxx
• Product Number: 4L905EA#ABU

Parts / Key Specs:

• CPU: AMD Ryzen 7 5700G
• GPU: NVIDIA RTX 3060 Ti
• RAM: 16GB DDR4 3200 MHz

Issue Summary:

• FPS dropped ~150 across all games after BIOS update

• Games now stutter heavily, even in empty servers

• Tried driver updates, Windows High Performance power plan, and OMEN Gaming Hub Performance Mode — no improvement

• Cannot access BIOS to tweak RAM/overclock manually

I’m hoping someone can advise:

1. Is it possible to safely revert to my old BIOS on this prebuilt?

2. If yes, what’s the official HP method for doing so without risking my system?

Any guidance from HP staff or experienced forum members would be greatly appreciated!

Thanks in advance for reading and helping!

[Kuroi_Kenshi]

Hi @adadaadadad,

Welcome to the HP Support Community!

Thanks for reaching out!

We're thrilled to have the opportunity to assist you and provide a solution.

I understand your OMEN 25L G12-1xxx desktop is experiencing major FPS drops and stuttering after a BIOS update, and you want to restore your previous gaming performance. Let’s go through a few steps to check what could be causing this and what you can safely do on an HP prebuilt system.

Reset BIOS settings to factory defaults
Enter BIOS and load “Setup Defaults” or “Optimized Defaults,” then save and exit.
This clears any hidden or changed parameters applied by the update or the tweak video.

Check memory speed after the BIOS update
After some BIOS updates, RAM can fall back to a lower default speed.
In BIOS or OMEN Gaming Hub, verify memory is still running at its rated speed (for example, 3200 MHz), not 2133/2400 MHz.

Clear residual firmware state (CMOS reset)
Shut down the PC, unplug power, and hold the power button for 15 seconds.
This helps clear lingering firmware states that can cause stutters after BIOS updates.

Reinstall AMD chipset drivers
Download and install the latest AMD chipset drivers for the Ryzen 7 5700G.
Chipset drivers control CPU scheduling and power behavior, which can be impacted by BIOS changes.

Verify Windows power and CPU behavior
Confirm Windows Power Mode is set to High Performance.
Disable any background power-saving features that may have been re-enabled after the BIOS update.

Check fTPM-related stutter (common on Ryzen systems)
Some newer BIOS versions enable or change fTPM behavior by default.
If available in BIOS, temporarily disable fTPM to test whether stuttering improves.

Test with a clean reboot environment
Disable non-essential startup programs and overlays (including recording or monitoring tools).
This helps rule out software conflicts that became noticeable after the firmware change.

Understand BIOS rollback limitations on HP prebuilts
HP desktop systems usually do not support manual BIOS downgrades for safety and stability reasons.
If the previous BIOS version is not offered by HP, reverting to a 2021 BIOS is typically not possible through official tools.

Identify when performance returns
If performance improves after defaults reset, chipset reinstall, and memory verification, the issue was configuration-related.
If FPS remains capped and stuttering persists, the newer BIOS may be enforcing different power or security behavior by design.

I hope this helps.

I'm glad I could help! 😊 If this resolved your issue, please mark it as "Accepted Solution" and click "Yes" on "Was this reply helpful?" Your feedback not only keeps us going but also helps others find the solution faster! 👍✨

Take care and have an amazing day ahead! 🚀

Best regards,

[adadaadadad]

Hello @Kuroi_Kenshi,

Thank you again for the swift and detailed reply. I've followed your plan thoroughly and wanted to provide a complete update on my findings, as well as ask for some clarification on the next steps.

Summary of Completed Steps:

1. Reset BIOS to defaults: Done via the Win + V CMOS reset method.

2. Check memory speed: Confirmed via Task Manager. RAM is running correctly at 3467 MT/s.

3. Clear residual firmware state: Done via the Win + V CMOS reset.

4. Reinstall AMD chipset drivers: Completed. I have the latest B550 chipset drivers installed directly from AMD's website.

5. Verify Windows power mode: My OMEN Gaming Hub is set to its highest performance mode ("Turbo").

6. Check fTPM-related stutter: As advised, I entered the BIOS, set TPM State to Off and TPM Device to Hidden, saved, and rebooted. I tested my games again, but the severe FPS drops and stuttering persisted completely unchanged.

7. Understand rollback limits: I am aware HP systems generally block downgrades.

The Core Issue & Evidence:
Despite completing all the above steps, the performance problem remains. My monitoring software (HWiNFO64) provides the definitive cause. After the update to BIOS F.24, my Ryzen 7 5700G CPU is being power-throttled to approximately 33 Watts (PPT). The "Performance Limit - Power" sensor flag is consistently "Yes," which explains the low ~40% CPU and GPU utilization and the massive FPS drops in games.

Regarding BIOS File Availability & A Failed Recovery Attempt:
I wanted to note an observation that aligns with the rollback limitation. On the official HP support page for my OMEN 25L (Product # 4L905EA#ABU), when I filter for Windows 11 drivers, it only shows the current F.24 Rev.A (Oct 2025) BIOS for my SSID 8876 motherboard.
However, if I change the filter to Windows 10 64-bit, an older version—F.04 Rev.A (May 2021) for the same SSID 8876—appears. This is the BIOS version my system had before the update.

I attempted to use the HP BIOS Update tool to create a recovery USB with this older F.04 file, hoping it might be a path to restore performance. I downloaded the file, accepted the terms, and the tool created a folder in my C:\ drive (e.g., C:\SWSetup\). However, instead of proceeding to the next step to format my USB drive and copy the files, the installer simply closed. This seems to be the system actively blocking the creation of a downgrade recovery tool.

My Questions for Escalation:
Since all standard troubleshooting has been exhausted and the data points to a firmware-level power management issue in BIOS F.24, could you please advise on the official next steps? Specifically:

1. Is the HP USB BIOS Recovery process a safe and supported method for my situation, or does HP policy also block its use for downgrades?

2. Is there a BIOS recovery file or process that HP Support can provide to safely revert my system (SSID 8876) to the previous stable version, such as F.20?

3. Can this case be escalated to the engineering team to review the power-throttling behavior in F.24 and potentially release a corrected update?

I'm geniunley tired of trying fixes it's been 5 days lol I come back from work wanna chill play some games with some friends but it's just unplayable, im spending my free time trying to fix this, I am geniunley regretting updating the bios 

I appreciate your time and guidance in helping to resolve this. My system details are: OMEN 25L G12-1xxx, Product # 4L905EA#ABU, Motherboard SSID 8876.

Best regards,

[adadaadadad]

I also forgot to mention apologies, this bios is causing my mouse and keyboard to randomly disconnect also some keys such as the windows stop working until i restart, its not my equipment that is causing this as its literally new i bought them last week

[adadaadadad]

Ive just recently went onto my HP support assistant and its saying that my BIOS needs updating when I just recently downloaded the latest one from the website?

Do I update?

(QUICK UPDATE): the 2021HP Consumer Desktop PC BIOS Update (ROM Family SSID 8876) F.04 Rev.A 13.6 MB May 12, 2021 has allowed me to make a copy onto my USB, which did not happen before, I am still going to wait on a superiors guidance on what to do if i should proceed trying to roll back the bios, for reference if needed my mother board is 8876 and the bios I have installed currently is (HP Consumer Desktop PC BIOS Update (ROM Family SSID 8876  F.24 Rev.A 13.8 MBOct 19, 2025)

(UPDATE NUMBER 2: I started up in recovery and went to advanced settings and it took me to the bios were I found this page attached, i tried rollback to F11 from F25 and it failed instantly said somethign about bios script wrong or something, I didnt touch it after that even thought i have a 8876 F21 BIOS on my usb ready for downgrading hopefully)) 

)

[Kuroi_Kenshi]

Hi @adadaadadad,

Thank you for the response.

 Let’s go through this carefully and clearly, focusing on what is happening and what is safe to do next.

Confirm the root cause you identified
Your HWiNFO data showing PPT power limiting at ~33 W with “Performance Limit – Power = Yes” is the key finding.
This confirms the issue is firmware-level power management in BIOS F.24, not Windows, drivers, or hardware.

Explain the USB and input issues
Random mouse/keyboard disconnects and non-responsive Windows keys are consistent with a BIOS regression affecting USB and power states.
These symptoms further support that BIOS F.24 is unstable on your SSID 8876 board.

Clarify why HP blocks BIOS downgrades
On HP consumer desktops, BIOS downgrade is intentionally blocked to prevent system bricking.
Even if older BIOS files (such as F.04) appear on the support page, the flashing logic enforces a version lock, which is why recovery and rollback attempts fail with script or signature errors.

Address HP Support Assistant behavior
HP Support Assistant recommending an update even when you’re already on F.24 is a known sync issue.
Do not update again, reflashing the same BIOS will not resolve power throttling and may worsen instability.

Clarify USB BIOS Recovery limitations
The HP USB BIOS Recovery feature is not a supported downgrade method on this platform.
It is designed only for corruption recovery, not version rollback, and will block older BIOS images by design.

Explain why your rollback attempts failed
The “BIOS script wrong” or instant failure you saw is expected behavior.
It confirms the system firmware is actively preventing rollback to earlier versions (F.11, F.21, etc.).

What is safe to do right now
Do not attempt further downgrade flashes or force methods.
Repeated failed BIOS writes increase the risk of permanent firmware corruption.

To get you the best assistance, we need to take this conversation to a private chat. We're inviting you to a private message to protect your privacy and ensure that any sensitive information remains confidential. 

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We're looking forward to helping you resolve this issue! 

Stay tuned, and thanks for your patience! 

Best regards,