PCI-Express is a high-speed expansion bus which is developed to replace older buses such as PCI and AGP. The most common use of PIC-Express is the GPU installation on motherboards.

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What are these “notches” on the side of the PCI Express connector?

I was tinkering with my PC yesterday and now I'm wondering about these things. Not that it really matters to me, I'm just curious. Example below:
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How to tell if an empty PCI Express slot is 1.0, 2.0 etc? (general test, or enquiry command, not refer to spec)

Is it possible to run a test on an empty PCI Express slot to definitively determine that the slot is PCI Express 2.0 or not? My reason for asking is to see if I get the most out of USB3.0 with my ...
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Does a x4 PCIe mechanical work in a x16 slot in x4 mode?

My question is fairly simple. Can a x4 physical (mechanical component) fit in a x16 PCIe, which is at x4 mode?
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Can I use a pci-e x16 slot for multple cards?

I have a mini itx pc with only one pci-e x16 slot. There is another old style pci slot. I don't care that much about graphics bandwidth and I'd like to add USB 3.0 support. It's a waste to be using ...
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Adding a SATA 6 Gbit/s PCI Express controller card?

If I add a SATA 6 Gbit/s PCI Express card to my motherboard, will I get similar speed to native SATA ports built into the motherboard? I ask because I have a SATA 6 Gbit/s SSD and my motherboard ...
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PCIe x1 serial card suddenly stops working

The Perpetrating PC... MB:MSI Z77A-GD65 OS:Windows 7 Pro CPU:Intel Core i5-3570k Ivy Bridge Memory:16gig G.Skill Ripjaw PSU:Cooler Master Silent Pro 700w HD:1TB WD Cavier black Rosewill rc-300e ...
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Can I be 100% certain that a PCIe x4 card will fit in a PCIe x16 slot? [duplicate]

Possible Duplicate: Does a x4 PCIe mechanical work in a x16 slot in x4 mode? I know I can place a smaller card in a larger slot. But can I be 100% certain that it works? (if we ignore a ...
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Will a regular PCI Express card work in a “PCI Express x16 Graphics (PEG)” slot?

I have a Shuttle SG31G2 that has an Intel G31/ICH7 chipset, one PCI slot, and one 16x PCI Express slot. I want to add a better gigabit NIC to it, and the PCI slot is already in use by a SATA card. ...
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Will a PCI-E V2.0 Graphics Card work with a PCI-E V1.0 Motherboard?

If I buy a PCI-E v2.0 graphics card (Nvidia Geforce GTX 275) will it work correctly and to the full potential with my PCI-E v1.0 motherboard (Asus P5B-Deluxe) ?
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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 ...
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If I have 2 Video cards in the same computer without SLI or Crossfire will it boost performance at all?

I have this motherboard with 2 PCI-E Graphics cards, apparently only one of them is actually x16 what ever that means. http://www.gigabyte.com/products/product-page.aspx?pid=2625#ov If I put the ...
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Why aren't there PCIe RAM expansions?

Perhaps I may be overlooking some aspect that is an important cause as to why these don't exist, but I feel that having RAM expansions through PCIe would be perfectly feasible. I know that a lot of ...
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1answer
930 views

Physical obstacle plugging PCIe 4x into PCIe 8x

I know this has been already discussed, for example in this question, where there's even a wikipeida quote saying that it's possible. So, according to that, I bought that PCIe 4x card. I have two ...
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How many types of PCIe graphics card form factor?

How many types of sizes are there for the form factor of graphics card? I am refering to the L-shaped metal part that juts out from the casing, allowing external connection to the monitor. I have a ...
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How to check whether my PC supports PCI Express

I'm trying to figure out whether my system supports PCI Express without opening up the box. lspci doesn't mention "Express" or "PCI-e" anywhere, but dmesg reports that a "PCI Express Hot Plug ...
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180 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 ...
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A PCI Express 3.0 Video Card into a PCI-E 1.0 x16 slot

Perhaps I'm trying to push my mobo too hard, but I think I have read that PCI-e 3.0 is back compatible to previous PCI-e specifications. But 3.0 into a 1.0, is it possibly asking too much? I'm ...
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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 ...
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968 views

If I combine a PCIe x16 graphics card and a PCIe x4 hardware RAID, does the graphics card get 16 lanes?

I'm planning to install a graphics card which can utilise 16 PCIe lanes and a RAID controller which supports PCIe x4. The Ivy Bridge CPUs are all specified as supporting either one x16 or two x8 ...
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1answer
816 views

Positioning triple slot graphics cards

If there are two gtx 570 dc ii's: On a Gigabyte z68x-ud7-b3 motherboard, in slots PCIe16_1 and PCIe8_2: Will the headers for front panel connections be blocked, or will there be enough flex in ...
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1answer
548 views

Is it possible to power off a PCIe video card/slot? (eg. hot-plug)

I'm looking at building a system that supports VT-d so I can pass through a high powered loud video card to a Xen/KVM/whatever VM (host will be Linux based). However, when I'm not using the VM I want ...
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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.
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How to set up multiple video cards in Windows XP

All I am trying to do is run a three monitor setup, two widescreens on the good card at high res and a third smaller monitor at 1024x768 that I watch continuously updating info in. I have a Dell ...
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1answer
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x16/x16 vs x8/x8

I am considering purchasing an LGA1155 board but dual GPUs they only run at x8/x8. From my research it seems that you lose about 1-3% tops when running at 2500*1600 but a lot more when running games ...
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How can I differentiate between the unmarked PCIE slots on my motherboard?

The motherboard in question is the ASUS P5MT-M Micro ATX The following image shows a couple sections of information taken from the official ASUS manual for this motherboard, along with an image of ...
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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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Does PCIe 3.0 x8 provide enough bandwidth for a dual QSFP 40Gbit NIC?

I'm researching dual QSFP 40GBit network cards for a work project and have a few questions regarding PCIe 3.0's theoretical max bandwidth. I'm currently looking at a dual QSFP PCIe 3.0 x8 card on CDW ...
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2answers
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What are the performance differences between PCI-Express x16 and x4

I have two PCI-Express x16 slots on my motherboard, but one of them only has x4 bandwidth. For passing through my graphics card to a virtual machine I need to use both slots and unfortunately, the ...
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1answer
600 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 ...
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Put Graphics card with PCI Express 2.0 into PCI Express x1 slot

I have old HP PC. Model: HP Compaq dc5700 Microtower http://h10010.www1.hp.com/wwpc/ca/en/sm/WF06b/12132708-12132884-12132884-12132884-12736054-12736270-80746314.html?dnr=1 It has PCI Express x1 ...
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What would work faster: One PCI-E based super fast SSD 120GB or 4 SATA 2 SSD's 60GB inside some RAID?

I want to change my current RAID (HDD based 4 sata 2 120GB) on which my OS (Windows 7) is installed to some more fancy fast and modern SSD based. I have 2 options - 4 OCZ AGT3-25SAT3-60G or one 120 GB ...
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1answer
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Asus PCE-N53 11n N600 PCI-E Adapter on 3.x kernel

Problem ASUS PCE-N53 wireless NIC doesn't work for latest versions of the linux kernel. How do I get it working on my system?
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1answer
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PCIe SSD as main (boot) hard drive on AsRock X97 Extreme M4

Recently, I assembled a new computer for personal use. With a top-notch CPU and video card installed, and reasonably fast RAM, the hard disk is now the main bottleneck in the system. The 3TB seagate ...
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PCIe Generation 3.0 graphic board running on old mainboard Generation 2.0 or earlier?

my problem comes out of the following: I'm owning a 'MSI P45 Neo 3' Mainboard. The 100% type I haven't checked yet, I'm about to do it as soon as possible. For sure is that it's already about four ...
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a pci-e card doesn't work with the other two graphic cards

A PC machine in the company has three 16x pci-e slots, let's call them A B C (A is closest to the CPU, C is furthest). There has been two graphic cards installed in it (gtx680 in A and gtx560 in C, ...
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Is a PCIE X1 card for USB 3.0 worth it?

I have a portable HDD on USB 3.0, and soon I'll have a 32gb flash drive on USB 3.0 as well. My motherboard is pretty old - and the next time I'll upgrade it is when I get a new CPU/mobo/ram. Slots ...
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Is it possible to put a PCIe 2.0 graphics card on a motherboard with PCI-Express?

my motherboard (MSI-7360) says it supports PCI-EXPRESS but does it also support PCIe2.0 cards?
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1answer
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How do you test if a PCI slot is working - motherboard diagnostic software?

I suspect that my motherboard is bad, and that my PCI-E slot is not working. I have a Gigabyte motherboard that had a Hauppage 2250 working fine in the PCI-E slot for many months. However - ...
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My PCIe video card does not work in POST, only comes on when Windows loads

I have an ASUS Maximus V Extreme motherboard which has onboard video. There is an Asus GeForce GTX 670 in PCIe slot 1. In the BIOS, I have PCIe selected as the preferred GPU. I've tried disabling ...
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PCIe Video Card has a connector on top

I have an 8500GT XFX 512MB Video card(like the picture) and I noticed that it had an interesting looking connector at the top of it. At first I didn't really take it into much though, until the other ...
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Will my old pci express v2 video card (evga 8800 gt) work in a mobo with a pci express v3 slot?

I'm looking to get a new motherboard. I know that if the graphics card has a higher PCI version than the slot, it should work. But what about the other way around, where the slot has a higher version ...
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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 ...
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Why do both PCI-E x16 slots have to be filled?

I recently built my brother a new computer, and after I completed installation of everything, and had installed the ATI Catalyst drivers, I noticed that the card was running in x8 mode in a PCIe x16 ...
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High end graphics card - motherboard can't handle it?

Considering my budget and since it feels it might be better to wait with newer motherboards until PCI 3.0 slots become common practice, I can't get myself to buy a motherboard for 150+ Euros, just for ...
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Can I change the “mini” wireless card in my Dell laptop

I have a Dell Studio XPS 16 and I would like to replace the built in wireless card. Is the "mini" card they call it actually a mini pci express card? If so can I then swap it out with another 3rd ...
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1answer
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Does a PCIe to dual mini-PCIe adapter exist? [closed]

I'm planning to make a home server that would serve as NAS, router and Wi-Fi access point. It should be small, so I choose mini-ITX form-factor which often has only one PCIe slot. I want a powerfull ...
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1answer
2k views

How do I get to know the PCIe version on my Motherboard?

The motherboard doesn't have anything written. Are there any alternative methods to find which version of PCI-Express my slot supports? I am looking for an upgrade and I want to add a PCIE gfx card
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How much electricity will I save if I use the onboard graphics card [on hold]

If I use onboard video instead of a PCI-E card, will I save much money in the electricity bill?
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How can I properly install 4 GPU's onto a motherboard? [closed]

I'm looking at this Motherboard: GIGABYTE GA-990FXA-UD7 AM3+ AMD 990FX SATA 6Gb/s USB 3.0 ATX AMD Motherboard and it has 4 PCIe express slots. However, the GPU's that I want are dual slot (Sapphire ...
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Did my new video card break my power supply?

My friend owns a CyberPower PC that he bought six months ago. He wanted to upgrade the video card and I offered to help him. The old card did not have a power connector on it, but the new one does. ...