Questions tagged [pci]

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

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Nvme(Kingston A2000) stopts giving response

I installed new nvme in my Inspiron 15 5580. The laptop boots fine with my nvme but the problem is that sometimes it stops responding (not able to read anything). My laptop was pre installed with ...
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40 views

I'm unable to enumerate prefetchable endpoint devices behind a pci-e bridge

Here is my problem: I'm unable to get BAR addressing from prefetchable end-point devices behind a pci-e bridge. Can anyone help me about that? Here is what I did until now: 1- I'm able to get ...
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Did I brick my PNY GTX 1080ti oc 11g graphics card?

I'm here to ask if I messed up and burned my new 1080Ti xlr8 oc graphics card. I have a 500w PSU (ZALMAN500-HP). When I took out my old GTX 750Ti and plugged in my new GPU, my PC didn't work. The ...
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Will my PCIe Card fit into my PCI Case [closed]

I was recently planning on some things to get for a PC I was going to build, I finished my list and made sure everything was compatible, and then, I was going through a final check, and then at the ...
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My PCIe WiFi 6 card only works after I cut the power to the PC for ~> 20 seconds. What could be wrong?

On my desktop PC I have an issue where my Wifi PCIe card is not recognized at all when I boot the computer in the morning, after it was shut down the night before. It's a dual boot system and it's the ...
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484 views

Disable dedicated GPU device in GRUB

I need some help. :( My laptop has Ryzen 5 2500u with Vega 8 graphics card and a dedicated gpu RX560x. The OS is Linux Mint Tricia Cinnamon based on Ubuntu 18.04 LTS. My dedicated gpu is momentarily ...
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174 views

VFIO cannot reset device no reset mechanism found

I'm trying to passthrough my USB controller to macOS (in QEMU). My USB controller is in this IOMMU group: IOMMU Group 4: 00:14.0 USB controller [0c03]: Intel Corporation 100 Series/C230 Series ...
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56 views

Maximum Data transmission & PCI slot in GIGABYTE Z390 UD

I am using a frame grabber installed on a GIGABYTE Z390 UD. For maximum "100%" data transmission the frame grabber documentation recommends installing it in an X8 PCIe slot with base specification 2....
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Maximum link width (link capability) of a pcie card (Intel X710 x8) doesn't show properly

Maximum link width (link capability) of a pcie card (Intel X710 x8) doesn't show properly on X2 or x4 pcie slot. In datasheet of Intel X710 it is mentioned that "The X710/XXV710/XL710 supports a ...
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How to predict the pciSlotNumber assigned to a device by Vmware

I'm trying to create a VM under VMware through the command-line. According to my current understanding of the subject, one step is to create a centos-mirror.vmx file containing the configuration of ...
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Linux PCI device. What if the memory allocated by the OS is wrong?

I'm a noob to PCI and Linux kernel drives. There was a post a few years ago that talked about the details surrounding how a Linux kernel goes about extracting information from BARs to determine ...
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420 views

Unable to Bind NIC to Driver VFIO-PCI

Context I'm attempting to run the packet generator MoonGen, however, it requires me to bind a NIC to the VFIO-PCI driver. Therefore, I must first unbind a NIC from its current driver, then rebind it ...
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610 views

PCIe Endpoint to Endpoint Communication

This is just a high level question about communicating with PCIe devices. Per my understanding it should be possible to do direct endpoint to endpoint communication with no Root Port middle man work ...
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How can I add hard drive to Qemu?

I am writing an OS and booting it from floppy. I wrote tool to look for all PCI devices but there is no hard drive. How can I add it to see it in the list of PCI devices? I tried to run it like qemu-...
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195 views

Where is hardware firmware for individual components in a laptop stored?

Where is the firmware for a device such as a mouse or trackpad integrated into a laptop? And how can I access it using Linux. So far I have tried querying the PIC bus using: lspci | grep rom ...
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Cannot start VirtualBox VM with PCI device attached

VirtualBox version: 6.0.4 Extension pack version: 6.0.4 Host OS: Windows 10 I have installed VirtualBox extension pack: and attached PCI device (Nvidia GPU) to my virtual machine w/ VBoxManage tool: ...
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How to convert PCI express to PCI-x

I have a part that outputs PCI-x. My mother board only takes PCI-express. I was wondering if there is a way to convert PCI express to PCI-X?
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Why does reading PCI device config file freezes the system?

I am running Arch Linux, on a Gigabyte Aero 15x v8, and I am confronted to a particularly arduous problem. To be noted that I am also using bumblebee and bbswitch configured to work with nvidia ...
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pci no space error

I have a Xilinx FPGA pcie card (vcu1525) and programmed it to have 2 BAR which defines 64KB and 4MB memory spaces. 02:00.0 Serial controller: Xilinx Corporation Device 903f (prog-if 01 [16450]) ...
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67 views

Arch Linux stuck at “Loading version 240” after modifying configs

I'm trying to get GPU passthrough to work on a VM. I've been following this video https://www.youtube.com/watch?v=6FI31QDtyy4. The differences between what I did and what he did in the video was ...
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131 views

Is it normal that the LEDs of the network adapter are off when the computer is off and you want to power it with WakeOnLan?

I'm trying to configure Wake-On-Lan on a computer. Here is what I've done: enabled it in BIOS (Power on by PME: Allows you to turn on the system through a PCI/PCIE/onboard LAN device). Note: I'm ...
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75 views

Could I “plug and play” a POST card?

I have just one PCI POST card and a number of PC. I want to inspect booting process of each, in a manner, that if one is successfully booted (code 00 or code FF typically) - i need to eject POST card, ...
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5k views

How to understand lspci tree format?

I use a Dell G3 3579 to run the lspci -tvv command. Here is the output: -[0000:00]-+-00.0 Intel Corporation 8th Gen Core Processor Host Bridge/DRAM Registers +-01.0-[01]----00.0 ...
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164 views

Docked Laptop superslow wifi connection when closed

I have a Lenovo T440p, which when working at home I dock onto a docking station. There, I have an additional screen connected, so I want to close the laptop when working with the large screen. ...
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183 views

What is the name of that metal stripe, which holds PCI cards?

What is the name of that metal stripe, which holds PCI cards?
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Isolate single device into separate IOMMU group for PCI passthrough?

I have below IOMMU groups and devices. $ for a in /sys/kernel/iommu_groups/*; do find $a -type l; done | sort --version-sort /sys/kernel/iommu_groups/0/devices/0000:00:00.0 /sys/kernel/iommu_groups/1/...
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943 views

How can I tell whether an old graphics card is PCIe or AGP?

I've been given an old(ish) graphics card, with the make and model not listed clearly, or at all, on the card. Or perhaps they are, but are covered by the heatsink. Assume also that I don't have ...
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496 views

Can PCI-e power limit be lower than 75W and will it affect RX460 performance?

I bought an MSI RX 460 4GB for my Lenovo H50 with 280W PSU. GPU-Z shows "board power limit" as 48W. I test and see GPU usage rise to 100% but power draw seems to stay at 48-50W. What does that mean? ...
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How to access ISA device in Windows 10?

I have an ISA device which I want to use under Windows 10. It was working in Windows XP but now the customer wants to upgrade their hardware and Windows. I found this motherboard (MS-98A9) which ...
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54 views

Are these graphics cards (PCI-E vs. PCI Express) interchangeable?

I'm not sure if I'm on the right Stack Exchange site but I figured I'd try here. I'm fairly new to PC building so I need a bit of help. The graphics card in my PCI is a GeForce GTX 760 which has a ...
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Why do PCI devices share the same address space?

When a computer starts up, the BIOS or operating system probes each PCI device to ask how much address space it wants. Then, it allocates the appropriate space and tells each PCI device where its ...
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3k views

how can i connect PCI card with laptop

I am working on image-based herbicide applicator. I used LabVIEW software for image processing and PCI card was used and connected CPU. In lab it is working well but, when i was working in the field ...
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239 views

Bought a DVB PCI Card; my motherboard only has PCI 1x slot. Can the card fit in that slot?

Without thinking ahead I bought this TBS8922 DVB card: After that I found that my motherboard has PCI 1x slots like below. Also, their end is opened. Can above card plug into this socket?
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How does onboard Wi-Fi get presented to the OS? Desktop Motherboard

I'm looking at motherboards and I'm debating on spending more for one with built-in Wi-Fi. I was wondering how this is presented to the OS. I'd like to use PCI pass-through, so I'm wondering if it ...
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127 views

Is it possible to install two video cards (PCI Express + PCI 32 bits) in Lenovo M58 SFF 7360 (Windows 7)?

I have a Lenovo M58 SFF 7360 with Windows 7. This is a E5200 Dual Core. I have installed a NVIDIA QUADRO NVS290 (PCI Express-x1) which works fine, but the internal video card can not work together ...
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37 views

Why doesn't this USB-C PCI card work?

I'm trying to install a USB-C device with little success. Output device requires: ≤ 8 W 4.75-5.25V, 1.5A The card is supposed to conform to USB-C spec. The device powers on, but continually ...
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2k views

How VPD is accessed via SMBus/I2C in a pci device?

Similar to what IPMI is querying, how will I access VPD of every device in a target server via SMBus/I2C? Do I need a driver for this or the i2c-dev module is enough? How to verify which is which on a ...
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715 views

Add PCI Passthrough device to VMX file VMWARE

I have an ESXi 6.0.0 (build 5572656) and am able to add a PCI passthrough device (network card) using the UI. I'd like to be able to include this when deploying a VMX file. The VMX file I'm using ...
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65 views

Windows cannot detect secondary HDD

I disabled my LAN adapter for some reason a while back. When I re-enabled it my windows froze. I tried everything and finally removed the network driver from safe mode and reinstalled it again and it ...
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213 views

One operating system across two computers?

Is it possible to cluster two computers together and run one operating system across them? I have heard of Beowulf & such, but can I cluster things like PCI devices (graphics acceleration, ...
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How to talk on both port using dual serial port PCI card on linux?

I am using MosChip MCS9865. It has two serial ports and I figured out how to talk through one of the serial port using sudo setserial /dev/ttyS0 uart 16550A command. That works great on one serial ...
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998 views

Kali Linux Wi-Fi is not showing

Today I tried connecting a Wi-Fi dongle so I could get more range on my laptop, and everything worked fine. After I got home, I disconnected the dongle (while the computer was on) and then the PCI Wi-...
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How can I tell Virtual Box to make the serial port a part of the PCI bus (and not the ISA bus)?

I have installed Ubuntu on Virtual Box, and I have enabled a serial port: I have found out that the serial port has been attached to an ISA bus and not to a PCI bus. Is there a way to tell Virtual ...
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Is the Ethernet port on mother board of my desktop dead?

The desktop was switched on and it was raining while I fell asleep. I got up instantly after hearing a loud thunder and lightening. I did hear few spiking sound within the cabinet and In a fear I ...
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What type of Mounting Bracket is this? Where can I purchase it? HP pavillion p6823w

I am in the process of upgrading several internal computer components. There are two small brackets at the bottom of the area where the fan is mounted. I would like to add some antenna ports or a USB ...
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47 views

What are the difference between these 2 wireless hardware?

On the left is Intel 512AN and on the right is Atheros AR9285 Altough i'm currently using the Atheros, but both are having different size, and i tried both can be plugged into the slot of my laptop. ...
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230 views

Asus P5BW-LA doesn't support PCIe graphics card?

I've been continuing my escapades with my 11-year-old HP a1640n pre-built which uses an Asus P5BW-LA motherboard ("Buckeye" variant which has Intel integrated graphics) running Windows XP Pro SP3. I ...
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326 views

Will the Gigabyte GeForce GTX1050TI G1 Gaming 4G work with my motherboard?

I want to upgrade my Acer Aspire XC-605. I want to get a better PSU, a bigger case and a better graphics card. I believe my motherboard is called MS-7869 DB.SRPCN.001 (I'm not sure). It has a PCI-...
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1k views

Why is the Enhancements tab missing on my sound card?

I am trying to enable Virtual Surround on my speakers. I followed these steps: Click Sounds on the control panel Select my speakers from the playback tab Click properties At this point, there should ...
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60 views

PCI RAID controller compatibility [closed]

Recently I've been thinking of buying a cheap RAID controller. I'm not experienced at all, and just want to mess around; nothing business affiliated, no specific expectations. The controllers I've ...

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