PCI Config Register modification? \ VOGONS

PCI Config Register modification?

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First post, by Duffman

Posted on 2019-07-20, 11:00

Duffman Offline

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Rank: Oldbie
Posts: 612
Joined: 2002-12-05, 05:20

I bought one of these

http://eshop.sintech.cn/pcie-express-x1-to-du … able-p-977.html

with the aim of getting an old YMF744 PCI sound card working on a new system.

It has a Pericom chip on it, and there is a tool to change PCI config registers called PCIEdit

https://www.diodes.com/products/connectivity- … ie-pci-bridges/

however when I try to run PCIEdit with admin privileges my system freezes.

Is there a way to get PCIEdit to work? or otherwise a better tool for changing PCI config registers?

MB: ASRock B550 Steel Legend
CPU: Ryzen 9 5950X
RAM: Corsair 64GB Kit (4x16GB) DDR4 Veng LPX C18 4000MHz
SSDs: 2x Crucial MX500 1TB SATA + 1x Samsung 980 (non-pro) 1TB NVMe SSD
OSs: Win 11 Pro (NVMe) + WinXP Pro SP3 (SATA)
GPU: RTX2070 (11) GT730 (XP)

Reply 1 of 2, by Stretch

Posted on 2019-07-20, 14:37

Stretch Offline

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Rank: Oldbie
Posts: 554
Joined: 2013-11-16, 00:57

RWEverything is a good program for chaning PCI registers in Windows. But right now I can't get to the program website because my browser thinks it is malicious.

Win 11 - Intel i7-1360p - 32 GB - Intel Iris Xe - Cubilux 7.1 USB

Reply 2 of 2, by Duffman

Posted on 2019-07-20, 16:02

Duffman Offline

Rank Oldbie

Rank: Oldbie
Posts: 612
Joined: 2002-12-05, 05:20

Thanks very much, using RW-Everything I see the config registers.

edit: looking at device and vendor ID reported by windows, it is actually a texas instuments XIO2001 PCI Express-to-PCI Bridge

looking at the documentation
http://www.ti.com/lit/ds/symlink/xio2001.pdf

there is an ISA Enable bit - so I want to make sure I enable the right bit

The attachment pciconfreg.PNG is no longer available

any hints?

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