4
votes
1answer
172 views

Why can't PCIe devices share lanes?

On older chip-sets it was not possible to have a dedicated graphics card in the PEG slot and have the Integrated Graphics Device (IGD) enabled at the same time. After looking online I found this was ...
4
votes
1answer
48 views

Searching for a PCI standalone System [closed]

For a research project, I would like to have a PCI(e) card which is a full standalone system (own CPU, memory, sata bus, network interface, etc..) running Linux, but which can be deployed on another ...
0
votes
0answers
52 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 ...
0
votes
0answers
87 views

Supporting PCI-E X1 network cards by CentOS(RHEL)

Help me please I want to know it becase my windows 7 cant see my PCI-working network card and I dont want to buy a motherboard and then find that CentOS does not support PCI-E X1 network card. I want ...
0
votes
0answers
154 views

PCI Express BAR memory mapping basic understanding

I am trying to understand how PCI Express works so i can write a windows driver that can read and write to a custom PCI Express device with no on-board memory. I understand that the Base Address ...
1
vote
1answer
859 views

PCI Express - Memory Addressing vs Physical Memory in Memory Read/Write Transactions

I'm trying to find the link between Memory BARs (Base Address Registers) and Physical Memory in a PCI Express Transactions. In my last question I started to understand what happens when a CPU ...
2
votes
1answer
2k views

PCI Express - Clarification about BAR, Memory addressing and physical memory

I'm an absolute beginner starting to understand the PCI Express protocol and I need some clarifications about its mechanics. I understood that a PCI Express endpoint device may have some memory BAR ...
1
vote
0answers
154 views

same pci bus address for pci slot and on board ethernet port?

The pci slot address shown is same as the one shown for on board ethernet card. There is a conflict. Not sure how to resolve it. Various command output are dmidecode -t 9 | grep 'Bus Address' ...
1
vote
1answer
2k views

mSATA drive swap for Wireless card

I was doing some cleaning of my older Acer Aspire 3860 laptop and noticed that my wireless card looks alot like an mSATA drive. I have not been inside laptops too often (clean, add RAM) but never ...
1
vote
0answers
278 views

Laptop with two variants, identical motherboards: Graphics card addition possible?

Ok, I know a gazillion people have asked countless times about the possibility of adding a graphics card to a laptop, but this one has a twist: I got a Samsung NP300E5Z laptop recently, and the ...
0
votes
2answers
727 views

Detect PCI vs. PCI-E

I have remote access to a computer, and I need to find out what kind of expansion slots is has, if they are PCI, or PCI-E, or something else. How can I do this from a shell? What commands are there ...
1
vote
0answers
103 views

Graphics card compatible with my motherboard's PCIe capabilities [closed]

I'm working on segmentation of 3D volume images on CUDA, and I want an Nvidia graphics card with Computer Capability over 2.0 and 2 GB of memory. I currently own a 9400 GT with Compute Capability 1.1 ...
0
votes
2answers
4k 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 ...
2
votes
1answer
2k 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 ...
1
vote
2answers
22k 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 ...
1
vote
2answers
1k 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 ...
3
votes
1answer
579 views

PCI vs. PCIe wireless network card

I currently have a PCI 802.11n wireless network card (TP-LINK TL-WN951N 300M). Would a PCIe network card improve 1. download speed and/or 2. range (i.e. the bars that windows shows when talking about ...
0
votes
1answer
123 views

feasibility of PCIe16 and PCI digital display cards together?

I want to run two digital display cards. I have an Radeon 5450 which I believe is PCIe16. I have only one PCIe16 slot. If I buy a second digital display card, it would have to go into a PCI slot, of ...
0
votes
1answer
300 views

Can I expand my storage options with a PCI-E card in a PCI slot?

I have an Intel D945GCLF2 running headless Ubuntu which I use as a fileserver. I currently have a 4 port PCI SATA card plugged into it which has 4 disks attached. They're running software RAID 5 which ...
1
vote
1answer
213 views

PCI-X card controlled by VM

I have a PCI-X card which I would like to assign to one of my VM guests. I am using Ubuntu 10.10, with libvirt and kvm. Is there any way, of completely bypassing the host system, and routing all ...
4
votes
1answer
75 views

How do home computer buses electrically put data on the wire?

In particular I'd like to know what schemes PCI Express, PCI and ISA use at the physical layer.
0
votes
1answer
230 views

Using 4 monitors with 2 generic video cards… possible?

I'm thinking of setting up 4 monitors in a grid, using two video cards, one card to feed each pair of monitors through the card's two DVI ports. The most important requirement for me is to have the ...
0
votes
1answer
99 views

Is there a 4 port graphics card with active cooling? [closed]

As I wrote in the question, does anybody know a PCI/PCI express graphics card for PC that has 4 ports and is actively cooled. If possible in half-height format (but that's not a must).
0
votes
2answers
2k views

Will USB Wireless Adaptor work better then PCI/PCIe adaptor?

Will a USB Wireless Adaptor work better then PCI/PCIe adapter? I'm going to buy a Wireless adapter for my desktop and I have Dlink wi-fi router already. In Market wireless adapters are in two form ...
1
vote
2answers
578 views

How to force rescan of PCI bus (and reallocation of BARs) in Windows XP

I am developing hardware with a PCIe interface based on a FPGA. When I reprogram the FPGA, it looses its BAR settings (BAR0, BAR1, etc.). How can I force Windows to a) rescan the PCI (and therefore ...
3
votes
2answers
417 views

What do the different /proc/bus/pci/0x directories represent?

What do the different /proc/bus/pci/0x directories represent? Do they represent the different PCI/PCI-E sockets on a board? If I have one mini pci and 2 PCI-E sockets on my board, should I be seeing ...
2
votes
0answers
335 views

Plugging in a GPU into a PCI slot via a PCI-e to PCI converter: is it possible?

First of all, this is for a GPGPU project so I only need a very small amount of bandwidth. The bandwidth for PCI and PCI-e 1x slots are several orders of magnitude more than I need. Some people have ...
1
vote
1answer
376 views

Questions concerning PCI-E 2.1 vs. 2.0

My older PC's video card just kicked the bucket and has been BSODing. It has a PCI-E x16 slot. Newegg has video cards that are PCI-E x16, 2.0, 2.1, etc. The slot on my ASUS P5N-E SLI motherboard is ...
5
votes
2answers
454 views

5 x 3GB drives and 4 x 1500GB drive best raid setup?

I am building a file server my plan is the have the Operating system on one raid partition and the data storage on another partition. I currently have 5 x 3GB IDE drives that i would like to put the ...
3
votes
4answers
16k 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?
2
votes
2answers
631 views

Is there a noticable difference between OB SATA bandwidth vs PCI-e SATA Controller

Main Question : Would I see any benefit (I/O bandwidth-wise) to purchasing a separate (non-raid) PCI-e controller card to plug SATAII drives into vs on-board SATAII slots? I'd be plugging at least ...