How to update option rom / bios raid drivers.

I have described below the steps I take to update my Option ROM on the motherboard P5QLE (I found these steps on Asus forum).

1. Get MMTool_3.22_Mod_21FiX
2. Open MMTool and "Load ROM" to open your BIOS ROM
3. Highlight the Option ROM (typically under the name column there will be "PCI Option ROM" and has a "RunLoc" of 8086:2822 for the ICH10). IF YOUR RUNLOC IS DIFFERENT LOCATE THE CORRECT ONE! 8086 means the manufacturer is Intel and 2822 means it is a ICH10 chipset ROM. For a list of Vendor and Device IDs goto
4. Once you have the CORRECT option ROM highlighted, select the "Replace" tab. (Do NOT delete and insert the updated ROM)
5. On the Replace tab, click Browse to find your updated Option Rom.
6. Once the correct ROM has been selected, click Replace.
7. Use "Save ROM as…" to make a new ROM file and keep your stock ROM intact.
8. Use the Asus EZ Flash 2 utility in your BIOS to update your Option ROM.

Note: You can download the latest Intel Raid Rom and Intel Rapid Storage Technology from




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  1. I am desperate to update my ASUS P5E 1201 bios with the intel ROM. The current version prevents any of my sata add on cards from working properly. I need a new link for the intel ROM. Could not find it on tweektown. Im good with any version from up to 10.6.

  2. Hello,

    Do you think your method will work also for an Asus P5P43TD-PRO mobo?


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