---
title: IC-OS UEFI Configuration — Gen-1 Dell (PowerEdge R6525)
slug: uefi-config-gen-1-dell
description: BIOS and UEFI settings for the Gen-1 Dell PowerEdge R6525 — iDRAC password reset, processor, boot, integrated devices, and miscellaneous settings required by IC-OS.
tags:
  - node-provider
  - deployment
  - uefi
  - bios
  - gen-1
  - dell
  - hardware
date: 2026-05-04
related:
  - node-provider-documentation
  - node-deployment-gen-1
  - node-hardware-guide
  - bmc-password-reset
---

This runbook configures the BIOS/UEFI on a **Gen-1 Dell PowerEdge
R6525** so that IC-OS can install and run correctly. It is the
BIOS-side step of the
[Node Deployment Guide (Gen-1, with HSM)](/wiki/node-deployment-gen-1/)
— at section 9, "UEFI setup and boot menu", branch here, complete the
steps below, then return to the deployment guide and continue to step
10.

> [!WARNING]
> Do **not** enable the RAID BIOS setting. RAID will break IC-OS
> installation.

## 1. UEFI — Enter System Setup and reset the iDRAC password

1. Reboot or power on the server.
2. Watch for the **blue screen** with boot options in the top-left
   corner.
3. Press **F2** a couple of times once the options are listed.
4. If recognized, the screen highlights *Entering System Setup*.
5. From System Setup, select **iDRAC Settings** and press Enter.
6. Select **User Configuration** and press Enter.
7. Select **Change Password** and press Enter.
8. Enter your desired password and select **OK**.
9. Select **Back** and **Finish**.

> [!TIP]
> If you have lost iDRAC access entirely and cannot reach this menu,
> see [BMC Password Reset](/wiki/bmc-password-reset/).

## UEFI — System BIOS

1. From System Setup, select **System BIOS** and press Enter.
2. From System BIOS, select **Processor Settings** and press Enter.
3. Set **NUMA Nodes Per Socket** to **0**.
4. Set **Minimum SEV non-ES ASID** to **253**.
5. Select **Back** to return to System BIOS.

## 2. UEFI — Boot Settings

1. Select **Boot Settings** and press Enter.
2. Set **Boot Mode** to **UEFI**.
3. Select **Back** to return to System BIOS.

## 3. UEFI — Integrated Devices

1. Select **Integrated Devices** and press Enter.
2. Set **PCIe Preferred IO Bus** to **Enabled**.
3. Set **Enhanced Preferred IO** to **Enabled**.
4. Set **SR-IOV Global Enable** to **Enabled**.
5. Select **Back** to return to System BIOS.

## 4. UEFI — Miscellaneous Settings

1. Select **Miscellaneous Settings** and press Enter.
2. Set **F1/F2 Prompt on Error** to **Disabled**.
3. Select **Back** to return to System BIOS.
4. Select **Finish** and press Enter.
5. Select **Yes** to save the changes and press Enter.
6. Select **OK** and press Enter.
7. Confirm the exit and press Enter. The system will reboot.

> [!WARNING]
> Do **not** unplug the IC-OS USB stick during this reboot.

## 5. Boot Manager — Enter Boot Manager

1. Watch for the blue screen with boot options in the top-left corner.
   Press **F11** a couple of times once the options are listed.
2. If recognized, the screen highlights *Entering Boot Manager*.
3. From the Boot Manager, select **One-shot UEFI Boot Menu** and press
   Enter.
4. From the Boot Menu, select your **USB device** and press Enter.

## Return to the deployment runbook

- If you are following the **legacy HSM** path, return to
  [Node Deployment Guide (Gen-1, with HSM)](/wiki/node-deployment-gen-1/)
  at section 9 and continue to step 10.
- If you are deploying the **non-HSM** path on Gen-1 hardware, return
  to [Node Deployment Guide (Gen-2)](/wiki/node-deployment-gen-2/) at
  section 9 and continue to step 10.

## Related

- [Node Deployment Guide (Gen-1, with HSM)](/wiki/node-deployment-gen-1/)
  — the legacy deployment runbook this configuration is part of.
- [BMC Password Reset](/wiki/bmc-password-reset/) — recovery path when
  iDRAC access is lost entirely.
- [Node Provider Machine Hardware Guide](/wiki/node-hardware-guide/) —
  hardware specifications by generation.
- [IC-OS UEFI Configuration — Gen-1 Supermicro](/wiki/uefi-config-gen-1-supermicro/)
  — sibling configuration for Supermicro hardware.