A very basic Drive v Windows v BIOS v ROM?


M

Markg2

Well-known member
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10:39 PM
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Location
Evergreen, CO
OS
Windows 10
When you turn on a computer and the screen result is (paraphrased) the drive is not present/gone/toast. Does that mean that any effort to do BIOS work is also not present? I thought the BIOS lived on the ROM which lives on the CPU which has nothing to do with the drive or Windows until the BIOS loads Windows. I'd be delighted for a link to the best tutorial on this. Thanks, Mark
 

My Computer

System One

  • OS
    Windows 10
    Computer type
    Laptop
    Manufacturer/Model
    Lenovo Win11 laptop Slim 7 evo i7
    CPU
    12th Gen Intel(R) Core(TM) i7-12700H 2.30 GHz
    Memory
    32.0 GB (31.7 GB usable)
    Sound Card
    Realtek High Definition Audio
    Hard Drives
    SAMSUNG MZNLN512HCJH-000L1 (SSD)
    Browser
    Firefox
    Antivirus
    Bitdefender
    Other Info
    NORD_VPN -- The previous OS, Win10 will not allow the new Win11 to save.
The BIOS is actually on the motherboard, not within the CPU.

The BIOS has to know the drive is connected and has to know which device to look on for the bootloader to begin loading windows.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    Beelink SEI8
    CPU
    Intel Core i5-8279u
    Motherboard
    AZW SEI
    Memory
    32GB DDR4 2666Mhz
    Graphics Card(s)
    Intel Iris Plus 655
    Sound Card
    Intel SST
    Monitor(s) Displays
    Asus ProArt PA278QV
    Screen Resolution
    2560x1440
    Hard Drives
    512GB NVMe
    PSU
    NA
    Case
    NA
    Cooling
    NA
    Keyboard
    NA
    Mouse
    NA
    Internet Speed
    500/50
    Browser
    Edge
    Antivirus
    Defender
    Other Info
    Mini PC used for testing Windows 11.
  • Operating System
    Windows 10 Pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom
    CPU
    Ryzen 9 5900x
    Motherboard
    Asus Rog Strix X570-E Gaming
    Memory
    64GB DDR4-3600
    Graphics card(s)
    EVGA GeForce 3080 FT3 Ultra
    Sound Card
    Onboard
    Monitor(s) Displays
    ASUS TUF Gaming VG27AQ. ASUS ProArt Display PA278QV 27” WQHD
    Screen Resolution
    2560x1440
    Hard Drives
    2TB WD SN850 PCI-E Gen 4 NVMe
    2TB Sandisk Ultra 2.5" SATA SSD
    PSU
    Seasonic Focus 850
    Case
    Fractal Meshify S2 in White
    Cooling
    Dark Rock Pro CPU cooler, 3 x 140mm case fans
    Mouse
    Logitech G9 Laser Mouse
    Keyboard
    Corsiar K65 RGB Lux
    Internet Speed
    500/50
    Browser
    Chrome
    Antivirus
    Defender.
Put another way, the BIOS is completely independant of any drives. You could disconnect all drives so that not a single drive is connected to the system, but you would still be able to access the BIOS without any difficulties whatsoever.
 

My Computers

System One System Two

  • OS
    Win11 Pro 24H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Self-built
    CPU
    Intel i7 11700K
    Motherboard
    ASUS Prime Z590-A MB
    Memory
    64GB (Waiting for warranty replacement of another 64GB for 128GB total)
    Graphics Card(s)
    No GPU - Built-in Intel Graphics
    Sound Card
    Integrated
    Monitor(s) Displays
    HP Envy 32
    Screen Resolution
    2560 x 1440
    Hard Drives
    1 x 1TB NVMe SSD
    1 x 2TB NVMe SSD
    1 x 4TB NVMe SSD
    3 x 512GB 2.5" SSD
    1 x 4TB 2.5" SSD
    5 x 8TB Seagate Barracuda HDD
    PSU
    Corsair HX850i
    Case
    Corsair iCUE RGB 5000X mid tower case
    Cooling
    Noctua NF-S12A chromax.black.swap case fans (Qty. 7) & Home Computer Specifications, Configuration, and Usage Notes General Specifications ASUS Prime Z590-A motherboard, serial number M1M0KC222467ARP Intel Core i7-11700K CPU (11th Gen Rocket Lake / LGA 1200 Socket) 128GB Crucial Ballistix RGB DDR4 3200 MHz DRAM (4 x 32GB) Corsair iCUE RGB 5000X mid tower case Noctua NH-D15 chromax.black CPU cooler Noctua NF-S12A chromax.black.swap case fans (Qty. 7) & Corsair LL-120 RGB Fans (Qty. 3)
    Keyboard
    Corsair K70 Max RGB Magnetic Keyboard
    Mouse
    Logitech MX Master 3
    Internet Speed
    1Gb Up / 1 Gb Down
    Browser
    Edge
    Antivirus
    Windows Defender
    Other Info
    The five 8TB drives and three 512GB SSDs are part of a DrivePool using StableBit DrivePool software. The three SSDs are devoted purely to caching for the 8TB drives. All of the important data is stored in triplicate so that I can withstand simultaneous failure of 2 disks.

    Networking: 2.5Gbps Ethernet and WiFi 6e
  • Operating System
    Win11 Pro 23H2
    Computer type
    Laptop
    Manufacturer/Model
    Lenovo ThinkBook 13x Gen 2
    CPU
    Intel i7-1255U
    Memory
    16 GB
    Graphics card(s)
    Intel Iris Xe Graphics
    Sound Card
    Realtek® ALC3306-CG codec
    Monitor(s) Displays
    13.3-inch IPS Display
    Screen Resolution
    WQXGA (2560 x 1600)
    Hard Drives
    2 TB 4 x 4 NVMe SSD
    PSU
    USB-C / Thunderbolt 4 Power / Charging
    Mouse
    Buttonless Glass Precision Touchpad
    Keyboard
    Backlit, spill resistant keyboard
    Internet Speed
    1Gb Up / 1Gb Down
    Browser
    Edge
    Antivirus
    Windows Defender
    Other Info
    WiFi 6e / Bluetooth 5.1 / Facial Recognition / Fingerprint Sensor / ToF (Time of Flight) Human Presence Sensor
The BIOS chip maintains it programming even without power but its contents can be overwritten with new versions.

Here is where the BIOS chip on my ASUS Prime X370-Pro motherboard is located:

AMD Prime X370-Pro BIOS.jpg
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 24H2
    Computer type
    Laptop
    Manufacturer/Model
    ASUS TUF Gaming A15 (2022)
    CPU
    AMD Ryzen 7 6800H with Radeon 680M GPU (486MB RAM)
    Memory
    Crucial DDR5-4800 (2400MHz) 32GB (2 x 16GB)
    Graphics Card(s)
    NVIDIA RTX 3060 Laptop (6GB RAM)
    Sound Card
    n/a
    Monitor(s) Displays
    15.6-inch
    Screen Resolution
    1920x1080 300Hz
    Hard Drives
    2 x Samsung 990 Evo Plus (2TB M.2 NVME SSD)
    PSU
    n/a
    Mouse
    Wireless Mouse M510
    Internet Speed
    2000Mbps/300Mbps
    Browser
    Firefox
    Antivirus
    Malwarebytes
  • Operating System
    Windows 11 Pro 24H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom build
    CPU
    AMD Ryzen 7 5700X3D
    Motherboard
    ASUS ROG Strix B550-F Gaming WiFi II
    Memory
    G.SKILL Flare X 32GB (2x16GB) DDR4
    Graphics card(s)
    ASUS ROG-STRIX-RTX3060TI-08G-V2-GAMING (RTX 3060-Ti, 8GB RAM)
    Monitor(s) Displays
    Samsung G50D IPS 27"
    Screen Resolution
    1440p/180Hz
    Hard Drives
    2TB XPG SX8200 Pro (M2. PCIe SSD) || 2TB Intel 660P (M2. PCIe SSD)
    PSU
    Corsair RM750x (750 watts)
    Case
    Cooler Master MasterCase 5
    Cooling
    Scythe Mugen 6
    Mouse
    Logitech M310 (MK540 keyboard/mouse combo)
    Keyboard
    Logitech K520 (MK540 keyboard/mouse combo)
    Internet Speed
    2000 Mbps down / 300 Mbps up
    Browser
    Firefox, Edge, Chrome
    Antivirus
    Malwarebytes (Premium)
    Other Info
    ASUS Blu-ray Burner BW-16D1HT (SATA) || Western Digital Easystore 20TB USB 3.0 external hard drive used with Acronis True Image 2025 backup software || HP OfficeJet Pro 6975 Printer/Scanner
During the power on cycle start hitting the F1 or F2 key(for Lenovo) to enter the bios.
 

My Computer

System One

  • OS
    Win 7/10/11
    Computer type
    PC/Desktop
    Other Info
    I'm a computer enthusiast so have quite a few systems that I run. More like an advanced hobby.
v 23H2 - B 22631.3737
A reminder to a now completed thread that now prompted my revisiting the BIOS. In the previous thread no matter what valid option offered by the forum to access the BIOS on boot, the computer seemed to skip and open at the Macrium/Win11 option. The reason turned up on an archived Lenovo forum thread - I changed the monitor connection from Display Port to HDMI. Bam - solved.
The current problem is Macrium boot to rescue USB. I can reorder the boot to USB first or even second but once I remove the USB Flash drive and reboot the boot order falls back to its previous 'automatic' state. Apparently some computers allow for the boot order to be static once set but not ours.
So this was the reason for this thread's question. If Win11 will see the BIOS with a shot hard drive, then I could just insert the USB rescue, F2 to the BIOS, reset the boot order and boot to the Reflect WE.
 

My Computer

System One

  • OS
    Windows 10
    Computer type
    Laptop
    Manufacturer/Model
    Lenovo Win11 laptop Slim 7 evo i7
    CPU
    12th Gen Intel(R) Core(TM) i7-12700H 2.30 GHz
    Memory
    32.0 GB (31.7 GB usable)
    Sound Card
    Realtek High Definition Audio
    Hard Drives
    SAMSUNG MZNLN512HCJH-000L1 (SSD)
    Browser
    Firefox
    Antivirus
    Bitdefender
    Other Info
    NORD_VPN -- The previous OS, Win10 will not allow the new Win11 to save.
Markg2 said:
v 23H2 - B 22631.3737
A reminder to a now completed thread that now prompted my revisiting the BIOS. In the previous thread no matter what valid option offered by the forum to access the BIOS on boot, the computer seemed to skip and open at the Macrium/Win11 option. The reason turned up on an archived Lenovo forum thread - I changed the monitor connection from Display Port to HDMI. Bam - solved.
The current problem is Macrium boot to rescue USB. I can reorder the boot to USB first or even second but once I remove the USB Flash drive and reboot the boot order falls back to its previous 'automatic' state. Apparently some computers allow for the boot order to be static once set but not ours.
So this was the reason for this thread's question. If Win11 will see the BIOS with a shot hard drive, then I could just insert the USB rescue, F2 to the BIOS, reset the boot order and boot to the Reflect WE.
Click to expand...
There is a different key you press at bootup that takes you to a boot order menu. Unlike a change in the BIOS this change is only temporary. At the next boot the boot order reverts to that set in the BIOS.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 24H2
    Computer type
    Laptop
    Manufacturer/Model
    ASUS TUF Gaming A15 (2022)
    CPU
    AMD Ryzen 7 6800H with Radeon 680M GPU (486MB RAM)
    Memory
    Crucial DDR5-4800 (2400MHz) 32GB (2 x 16GB)
    Graphics Card(s)
    NVIDIA RTX 3060 Laptop (6GB RAM)
    Sound Card
    n/a
    Monitor(s) Displays
    15.6-inch
    Screen Resolution
    1920x1080 300Hz
    Hard Drives
    2 x Samsung 990 Evo Plus (2TB M.2 NVME SSD)
    PSU
    n/a
    Mouse
    Wireless Mouse M510
    Internet Speed
    2000Mbps/300Mbps
    Browser
    Firefox
    Antivirus
    Malwarebytes
  • Operating System
    Windows 11 Pro 24H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom build
    CPU
    AMD Ryzen 7 5700X3D
    Motherboard
    ASUS ROG Strix B550-F Gaming WiFi II
    Memory
    G.SKILL Flare X 32GB (2x16GB) DDR4
    Graphics card(s)
    ASUS ROG-STRIX-RTX3060TI-08G-V2-GAMING (RTX 3060-Ti, 8GB RAM)
    Monitor(s) Displays
    Samsung G50D IPS 27"
    Screen Resolution
    1440p/180Hz
    Hard Drives
    2TB XPG SX8200 Pro (M2. PCIe SSD) || 2TB Intel 660P (M2. PCIe SSD)
    PSU
    Corsair RM750x (750 watts)
    Case
    Cooler Master MasterCase 5
    Cooling
    Scythe Mugen 6
    Mouse
    Logitech M310 (MK540 keyboard/mouse combo)
    Keyboard
    Logitech K520 (MK540 keyboard/mouse combo)
    Internet Speed
    2000 Mbps down / 300 Mbps up
    Browser
    Firefox, Edge, Chrome
    Antivirus
    Malwarebytes (Premium)
    Other Info
    ASUS Blu-ray Burner BW-16D1HT (SATA) || Western Digital Easystore 20TB USB 3.0 external hard drive used with Acronis True Image 2025 backup software || HP OfficeJet Pro 6975 Printer/Scanner
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