PCI (Peripheral Component Interconnect) is an element for connecting peripherals to computers based on the IBM PC architecture.

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Can a device damage the slot it is installed in?

I have a PC with a Gigabyte GA-945G-S3 rev 1.0 motherboard (Intel 945G+ ICH7 chipset). I got the PC from acquaintance and found out that integrated audio was damaged (noisy, distorted sound). Then I ...
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35 views

How are PCI devices accessed?

I have 2 questions related to PCI bus: How device drivers access devices on PCI bus? Is it enough to write to memory region allocated for device (mov memory_space_allocated_for_dev, something, if ...
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19 views

how to interpret /sys/bus/pci/devices/<device id>/resource<number>

i'm trying to figure out how to interpret the the resource and resource<number> files under PCI bus. Let's look at a specific example. Here is what I get when I run lspci -tvvv -[0000:00]-+-00....
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1answer
27 views

Driver for ZEON2 94V-0 PCI card?

I need to use a PCI card with a parallel port on it with my PC but I am not able to find a driver for it, so, how can I use this card? The only information I can read from the card is ZEON2 94V-0 on ...
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21 views

given an on-borad port PCI address, how do I know to which NIC it belongs?

Assume we have a server with 2 on-board NICs (no other NIC was inserted to any of the free expansion slots). Given a PCI address of any of the ports of the on-board NICs above, is there a way to know ...
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16 views

PCIE GFX Card along with PCI GFX Card

I have a complicated question with a restricted budget (Like 0$). I have a PC with a GT220 graphics card which which has a limitation of being able to use only two of it's out of three. Now I need to ...
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18 views

How can I remove the option to eject PCI device from the Windows 10 tray icon?

My ASUS Xonar Essence STX soundcard keeps showing up under the safely remove hardware tray icon in Windows 10 x64. If I 'eject' the device my soundcard stops working. The device that Windows 10 ...
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2answers
52 views

Is PCI / PCI-e via USB possible?

Is there a way to interface with PCI/PCI-e hardware, externally; via USB? I want to attach a PCI-e device to my laptop/notebook. FireWire, Thunderbolt, or similar would be equally suitable.
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210 views

How is the device determined in PCI enumeration? (bus/device/function)

I am confused about PCI Bus/Device/Function enumeration. Looking at the Wikipedia page for PCI configuration, I see that for a given bus, the master will request vendor ID and device ID for all ...
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1answer
43 views

How is the device determined in PCI enumeration? (bus/device/function)

I am confused about PCI Bus/Device/Function enumeration. Looking at the Wikipedia page for PCI configuration, I see that for a given bus, the master will request vendor ID and device ID for all ...
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1answer
26 views

Can the 'pciconf' command be used to identify makes and models?

Specifically, I wish to identify which model of Intel WiFi NIC is installed on my FreeBSD machine in the absence of a functioning driver. Can pciconf (equivalently, Linux's lspci) be used to easily ...
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19 views

How can I reserve hotplug bridge's memory only for prefetchable memory using the Linux kernel command line?

I have been trying to reserve more bridge memory for PCI hot plug devices using the kernel command line option 'pci=hpmemsize=256M,realloc'. This ends up causing an issue for non-prefetchable memory ...
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63 views

How can I rebind a pci device to a loaded linux kernel driver?

I have two video cards, both from the same manufacturer (nvidia). I'm using pci_stub to avoid binding of my secondary card to the nvidia kernel driver (in order to use it for pci-passthrough with qemu....
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1answer
975 views

Low-cost PCI Remote Management Adapter

I'm looking for a product similar to the Dell DRAC that can give low-level access to a PC from a remote location, i.e. access the BIOS, reboot the PC, etc. These are common in servers, but I have yet ...
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168 views

Are there any human-readable PCI slot management utilities for CentOS / Linux?

I'm looking for a method to determine, in a human-readable way, what kind of PCI device is in which slot on a computer running Linux or a derivative. lspci is somewhat cryptic and impenetrable, and ...
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1answer
727 views

Optiplex 760 + Legacy Rage XL PCI card + Windows 7 x64 = startup issues…?

When this card is in the system, I get no beeps, no display, no "POST" things occurring... It's obviously a legacy / old card from year 2000 so not sure if it's bad or what. I know I've used it in ...
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2answers
3k views

Making Low Profile PCI Card

I have a PCI Card that can fit into a MicroATX case if the bracket was cut to a low profile size. Is there a way to cut the metal of the PCI card cleanly and will I have any issues such as grounding ...
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970 views

Which devices are (0F18, 0F12, 00BD) these IDs for? All share the same Vendor ID (8086), i.e. Intel

It is a Lenovo G50-70 Notebook PC. I reinstalled Windows 8.1 on it. The official website does not provide all the necessary drivers required for the Device Manager to calm down. Yellows still persist. ...
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55 views

ACPI doesn`t work properly?

My PC with next parameters H/W path Device Class Description =================================================== system P5K PRO (To Be Filled By O.E....
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2answers
59 views

Confused about PCI slots [closed]

In a few months time, I am looking to buy a gaming PC, a proper one, for the first time (I have previously had a laptop). I have seen a pc with an MSI 970A-G43 motherboard. I was a bit stuck when it ...
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2answers
3k views

Firewire via PCI, PCI-X or PCI-E

I have read up on this and sadly, have gotten some contradicting information. My issue is, my firewire units 'complained' when plugged into a PCI interface and requested they go direct into the board ...
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77 views

Have I just broke my PCI-E slot?

Struggled taking out the GPU, eventually managed and this happened. I literally just received it today. Is it now broken?
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1answer
626 views

Fedora 23 lost WiFi

I upgraded from Fedora 22 (kernel 4.0) to Fedora 23 (kernel 4.2) and now my rtl8192ce WiFi PCI card is not working. lspc does show the card, but ifconfig only shows the devices: enp2s0, lo and ...
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1answer
132 views

Access PCIe card over network / PCIe virtualization

I need to access a PCIe card over LAN. I am wondering if there is an existing virtualization solution for this or if I need to create my own solution. The scenario is as follows: I need to use an ...
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75 views

Using integrated GPU to render Linux desktop instead of my dedicated GPU

I'm trying to set my CPU integrated GPU as the default one for rendering. I also have a dedicated R9 280. I'm doing this to pci passthrough the R9 to my windows VM to play games. Looks like you must ...
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3answers
125 views

Run 10 sets of headphones from a pc via 10 separate channels

We have a PC application that runs on Windows 7 platform that is designed to play sound to up to 10 different MP3's to up to 10 separate sound cards (ie. 10 different inputs playing to 10 different ...
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1answer
121 views

Which PCI slots belong to which CPUs

I am running a quad-socket Intel Xeon E7-v2 system. I need to check to which CPUs chosen PCI devices are connected. Is there a way to do this on linux using e.g., lcpci/dmidecode?
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41 views

NIC on PCI bus only works when attached to POE supplying network

This is a strange one.... I have a PC with both an on-board NIC and an additional NIC in a PCI slot. The NIC in the PCI slot will only create a link when attached to a network which supplies POE. ...
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1answer
14k views

How to force display through PCI video card when onboard graphics is not working?

I have an old motherboard. The problem is that its on board graphics is not working. The motherboard does not detect PCI video card automatically. I have to change primary video adapter to PCI from ...
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2answers
250 views

how to get list of bus number associated with pci devices?

I'm trying to get a list of all the PCI associated buses on a Windows system. I know I can use wmic or devcon to get a list of all the devices, but how would I go about figuring their respective buses?...
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257 views

Floppy Disk to ??? Controller

I have a motherboard which has: SATA IDE Internal USB headers I need to attach a floppy disk drive, but there is no onboard floppy disk controller. I've looked for the following: Internal USB ...
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127 views

Serial communication vs Parallel Communication

While reading about PCIe and PCI I came across webpages detailing about the difference between Serial and Parallel communication. What I found out was one particular statement i.e. Some things ...
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87 views

How can I improve my wireless connection?

I recently built a machine running Ubuntu 14.04 using a TP-Link TL-WDN4800 PCI wireless network adapter. When I click on the wireless connection icon on the Ubuntu taskbar, it almost always tells me ...
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232 views

Drivers for VT6421A Controller Card

The hard disk controller on my motherboard went out, so I'm trying to install this VT6421A PCI controller card. Unfortunately, I've looked at a couple of posts on SuperUser and other forums, but I ...
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1answer
5k views

Cannot setup PCI Passthrough for display adapter in VirtualBox

VirtualBox supports PCI Passthrough and I'm trying to attach my graphics card to the guest OS (host is Windows Server 2012 and guest is Windows 8.1 Professional - so they should both work with the ...
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5k views

Can I find out if PCI-e slot is 1.0, 2.0 or 3.0 in linux terminal?

I'm going to purchase a GPU which is for PCI-e 3.0. But since I don't know what PCI-e slot it is in my computer I need to find it out somehow. Is it possible to find it from the terminal in linux?
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1answer
117 views

PCIe card and x8/x16 lanes

I have a card that says it is PCIe x8 card (which means 8 lanes, if I'm not mistaken). Can it be physically plugged in a slot x16? Will it work, assuming drivers/OS support ? The motherboard is ASUS ...
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1answer
95 views

CPU Intel Core i7-4790 PCI support

I am planning to buy Intel Core i7-4790 and use it in combination with Asus Z97-AR motherboard. The motherboard has 2 PCI slots, will these be still working with the CPU? The specs on Intel web site ...
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1answer
734 views

udev pci device rule is not working

I have a PCI device which have an own drivers (not integrated in Linux kernel). I've collected device information using udevadm. udevadm info -a -p /sys/devices/pci0000:00/0000:00:1e.0/0000:0d:02.0 ...
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1answer
30 views

How do I connect a IDE hard disk to a machine that only support SATA

Given that IDE to USB2 converter is not allowed to be use, how do one connect a IDE hard disk to a machine that only support SATA hard disks and have PCI slots only and yet achieve the highest ...
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1k views

I have a 3.3 Volt PCI ethernet card working on a 5 Volt PCI slot. How is it possible?

This is the design for PCI slots: As you can see, there are 32/64 bits and 3.3/5 Volts. For what I know: 32 bits PCI cards can work in 64 bits slots of the same voltage. 64 bits PCI cards ...
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807 views

What is the maximum length of a PCI-Express Flexible Extension Cable?

What is the maximum length a PCI-Express bus can be extended with a PCI-Express Flexible Extension Cable like this (36 Pin):
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2answers
69k views

What are PCI and PCI Express slots used for?

I'm comparing different Micro-ATX motherboards for a home server build and I was wondering what I would use PCI and PCI Express slots for? Are these used for hard-drives, GPUs, RAID controllers, RAM ...
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3answers
9k views

How are PCI/PCIe BARs configured to access memory on the device?

In my previous question, I established that the memory address used by PCI/PCIe devices does not have to mapped to system RAM, but could also refer to "on device" memory, e.g. RAM or registers. But ...
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1answer
4k views

Do PCI / PCIe buses and devices always enumerate in the same order?

I am looking into a situation where there are multiple, identical (National Instruments) PCIe DAQ modules in a PCI/PCIe chassis, connected via either a single or dual chassis controller. In the worst ...
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3answers
10k views

Error allocating Mem BAR for PCI Device 0X/00/0

I am getting the following error when I boot my Dell Precision 390. Everything appears to be working fine, but I would like to understand what the error means and how to fix it. I believe it ...
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1answer
253 views

How was the world before plug-and-play? [closed]

Unfortunately, I haven't really existed for long enough to know how computers functioned before PnP and the PCI stuff existed. According to various googles, hardware had to be manually physically "...
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1answer
348 views

Do all PCI slots support dual PCI riser cards?

I could use an extra PCI slot since my motherboard only has one. Many online shops offer "dual PCI riser cards" such as this one: Those riser cards are usually meant for compact cases like rack ...
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23k views

Can I turn a PCI-e x1 slot into an old PCI slot?

Is it possible to convert a PCI-e x1 slot into an old PCI slot? If so, how?
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188 views

PCI Memory Read Command

I'm trying to understand PCI system architecture. As I know there are several PCI commands like i/o read-write, memory read-write, configuration read-write etc. If CPU communicates peripherals with ...