I want to boot an ide hd from a jmb card. I replaced 3 bytes with b1 02 They seem important, causing PCI config register bits 0xed[5: I want to create an AHCI patched verson of 1. My computer is dual boot, XP and Windows 7. Option ROM not enabled by setting df[6], so the disks are not bootable. The time now is

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Anyway, you can erase the flash chip, so that no option ROM is executed paat the card is rendered non-bootable anymore. You can use these HTML tags.

The option ROM loads, correctly reports connected drives, and allows booting from them. I want to create an AHCI patched verson of 1. What am I missing?

They might be similar enough you could replace one with the other, but they also might not be. The hang does not occur if the option ROM is skipped by setting 0xdf[6], so I use 0xa1 to be closer to what Linux does, although I notice no other differences between 0xf1 and 0xa1. This changes mov cl, 0x02 to mov cl, 0x Hard drive is SATA. I am replacing an Adaptec SA card. Unfortunately, the file is quite different.


JMicron JMB36X SATA Controller Driver Driver – TechSpot

Why can it be?. Please work with the latest bios and share it. I am having a hard time installing the drivers.

The bytes that were changed here are x86 code that reads the PCI configuration jnb36x and does something with the value. You can download 1.

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Given my limited abilities to understand hex, I cannot locate where to apply the changes to. I have read through this page and start to comprehend the edits needed. I replaced 3 bytes with b1 02 Duufus, I had in the past this card: These configuration registers seem to control the hardware directly.

I have been using it for some time. The original bytes were e8 xx xxwhere e8 is the opcode for the CALL instruction, and the bit immediate operand is the relative branch target. With df[6] set, the option ROM does not detect any disks, despite spending several minutes.

Seems to take values of 0xc2 or 0x I speculate its purpose is to disable the option ROM, allowing the main BIOS to set up the rest of the device configuration without interference. If so, I would start with the first patched ROM the one that sets df[1: The computer is a Dell with the Intel x chipset. Power, Voltage, Temperature, and Patta.


Both ports on Motherboard. Header Type ‘non-bridge’ single-func Vendor: At this point in the code, register cl should contain the byte read from PCI configuration register 0xdf. Problems Only modifying jmifron df[1: I want to use latest bios because it will be better 1.

JMicron JMB363 Add-on Card AHCI mode

I tried modifying the option ROM to also configure register 0x to this value, but had many problems booting. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. They seem important, causing PCI config register bits 0xed[5: