BIOS problem

[Gever07]

I have a really really really problem with my computer, I have an HP EliteDesk 800 G6 Tower PC and about a month or two ago after a regular WINDOWS UPDATE, which WINDOWS decided to push a BIOS update without asking, something really bad happened to me. Every two weeks or so when I turn on my computer, nothing appears on the screen. The computer fans are at maximum and nothing appears. After that, I have to force the computer to turn it off. i turn on the computer with WIN+B and only then does it turn on and work for about a week or two and then it happens again. I have tried everything possible, turning off the BIOS updates from the BIOS, turning it off from WINDOWS, I tried downloading the BIOS again too, I don't know what else I should do, it should stop, I have to stop it because the BIOS chip has a limit on how many times it can be reprogrammed and if it reaches the limit, my situation will be really bad... What should I do?!?! Please help me.

[NonSequitur777]

@Gever07,

I'm sorry to hear you're experiencing this issue.

Based on your description, it does not sound to me that Windows is reflashing the BIOS every two weeks.

Instead, it sounds like the PC is occasionally failing to complete POST (Power-On Self-Test), and using Win + B is allowing the system to recover.

A few questions:

1. What is your current BIOS version? (Press F10 at startup or run msinfo32 in Windows and check BIOS Version/Date.).  The most recent BIOS version for your PC is listed as: 02.26.00 Rev.A (June 2026) by HP.
2. Which processor is installed (Intel Core i5, i7, etc.)?
3. Are you using the integrated graphics or a dedicated graphics card?
4. Have you added or replaced any hardware (RAM, SSD, graphics card, etc.) before this started happening?
5. Does the Caps Lock LED blink, or do you hear any beep codes when the system fails to start?

A few comments:

• Btw, the SPI flash chip used to store the BIOS is designed for many thousands of erase/write cycles (typically 10,000 or more), so running the HP BIOS Recovery procedure several times is exceedingly unlikely to wear it out.
• If the BIOS recovery works consistently, the BIOS image itself may be fine. The problem could instead be caused by unstable hardware (memory, storage, graphics), corrupted CMOS settings, or, less commonly, a motherboard issue.
• Since this began after a BIOS update, it would also be worth checking whether HP has released a newer BIOS version for your EliteDesk 800 G6 Tower. If you're already running the latest BIOS, reinstalling it once using the HP BIOS Update utility can sometimes help if the firmware image became corrupted.

Please post your current BIOS version and the answers to the questions above, and I'll try to narrow down the cause.

Kind Regards,

NonSequitur777

[Gever07]

Thanks for the answer! @NonSequitur777 

1. My BIOS version is listed as S01 Ver. 02.26.00 - 05/06/2026 (and this is after two days ago I turned on the computer with WIN+B because it happened)

2. I have an Intel(R) Core(TM) i7-10700 CPU @ 2.90GHz

3. I am using an RTX 2060 SUPER graphics card

4. No, before this started happening I did not touch the computer in any way, it worked for at least a year and a half and then out of nowhere after a BIOS update it started happening.

5. No, there are no beeps, I didn't notice a blinking light from what I remember, the only thing that happens is this: I press the power button, then I see that the light on the video card starts to light up, then within a minute I start to see and hear that my fans are at their maximum and that's it, it just stays that way until I press and hold the button and turn off the computer.

By the way, I downloaded the newest version of the BIOS and installed it and it didn't help, in vain as I said I thought the problem was an update or something like that so I turned off the BIOS option to receive updates (this is after I installed the update that I downloaded myself) and I also turned off the option in Windows to give driver updates or things like that.

[NonSequitur777]

@Gever07,

Thank you for providing the additional details.

The good news is that your BIOS is already updated to S01 Ver. 02.26.00 (05/06/2026), and you also manually reinstalled the BIOS update without improvement. This makes it less likely that the BIOS file itself is corrupted.

So, based on your description, I do not think Windows is repeatedly updating or reprogramming your BIOS. The behavior you describe sounds more like an intermittent POST (Power-On Self-Test) failure:

• The PC powers on.
• The RTX 2060 SUPER receives power (you see its light come on).
• After about a minute, the fans ramp to maximum speed.
• No display appears and the system never reaches the point where Windows starts.

This usually means the system is getting stuck very early during hardware initialization.

Since this began after a BIOS update, it is possible that the timing is coincidental, or that the newer BIOS changed initialization behavior and exposed a marginal hardware issue. I would suggest checking the following:

1. Clear CMOS

   Please try resetting the BIOS settings to factory defaults. A corrupted CMOS setting can sometimes cause intermittent POST failures after a BIOS update.

2. Reseat the RTX 2060 SUPER

   Since you are using a dedicated graphics card:

   • Remove the RTX 2060 SUPER.
   • Check the PCIe contacts for dust or contamination.
   • Reinstall it firmly.
   • Verify that the PCIe power connector is fully seated.If possible, also test temporarily using the Intel UHD 630 integrated graphics from your i7-10700:
     • Remove the RTX 2060 SUPER.
     • Connect your monitor to the motherboard video output.
     • Use the PC normally for several days.

     If the problem disappears, the graphics card or PCIe power delivery becomes a strong suspect.

3. Reseat and test the memory

   Intermittent RAM initialization problems can also produce exactly this type of symptom:

   • Remove RAM and use compressed ("canned") air to clean the RAM slots.
   • Reinstall the memory modules.
   • If you have two or more DIMMs, test with one module installed at a time if possible.

4. Check for HP diagnostics errors

   Please run the HP PC Hardware Diagnostics UEFI tests, especially:

   • Memory Test
   • System Board Test

A few additional questions that would help narrow this down:

• How much RAM is installed, and how many memory modules are being used?
• Is the power supply the original HP unit, and what wattage is it?
• When the failure occurs, does the power button LED stay solid white, or does it blink a specific pattern?
• Do you ever see the HP logo before it fails, or is there never any video output at all?

At this point in time, I would focus on isolating the hardware component that is preventing POST, especially the RTX 2060 SUPER, RAM, and power delivery.

Kind Regards,

NonSequitur777