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Command the heart of your computer. The most comprehensive and technical guide about BIOS keys, error sounds meanings, UEFI boot settings and server optimizations for all brands. Everything you need to troubleshoot hardware problems and configure performance settings is here.
BIOS (Basic Input/Output System)is the initial software that is embedded in your computer's microchip and starts the system. It tests (POST) the hardware components (RAM, Processor, Disks) and loads the operating system.
In 2026 year standards, most systems are now UEFI (Unified Extensible Firmware Interface) uses. UEFI is a system that replaces the old BIOS, has a graphical interface, has mouse support and is more secure (Secure Boot).
Each motherboard and laptop manufacturer uses different shortcuts to enter the BIOS. In the table below you can find the current key combinations of the most used brands in Türkiye and the world.
| Marka | BIOS Enter Key | Boot Menu Key | Notlar |
|---|---|---|---|
| Asus | F2 or DEL | ESC or F8 | Usually press and hold F2 at startup. |
| Lenovo | F2 or Fn + F2 | F12 or Novo Key | Some models have a small "Novo" button on the side. |
| HP | F10 or ESC | F9 | It may be necessary to first press ESC and select F10 from the menu. |
| Dell | F2 | F12 | Press quickly when the Dell logo appears. |
| Monster | F2 | F7 | Turkish gaming computer brand. |
| Acer | F2 | F12 | F12 boot menu must be activated in BIOS. |
| MSI | DEL | F11 | It is common on motherboards and laptops. |
| Casper/Excalibur | F2 | F7 or F12 | may vary depending on model. |
| Toshiba | F2 | F12 | - |
| Samsung | F2 | F10 | - |
| Sony VAIO | ASSIST Key | F11 | While off, press ASSIST. |
Due to the fast boot feature, sometimes it may be impossible to reach the keys. In this case, you can enter the BIOS through the operating system:
Is your computer not turning on and making beeping noises? These sounds indicate hardware malfunctions. Here are the most common AMI and Award BIOS error codes:
| Ses Kodu | Possible Problem | Solution Proposal |
|---|---|---|
| 1 Short | System Normal | No problem, the system boots. |
| 2 Short | Memory (RAM) Parity Error | Remove or replace RAM. |
| 3 Short | Memory Read/Write Error | Clean RAM slots, try different slots. |
| 5 Short | Processor (CPU) Error | Check processor, check cooler. |
| 8 Short | Video Card Memory Error | Check the video card. |
| 1 Long, 2 Short | Video Card Error | The graphics card may not be seated. |
| Continuous Sound | Power Supply / Overheating | Check fans and PSU. |
For more detailed information on our website BIOS Error Sounds GuideYou can check out.
Also regarding Windows Blue Screen errors ACPI BIOS Error Solution You can take a look at our article.
What you get from Eka Sunucu Dedicated Server or on the servers you have installed yourself, the following settings must be turned on for performance and virtualization (VMware, Proxmox, etc.):
Turkey (Turkish)
Germany (German)
Worldwide (English)
