Questions tagged [pci-express]

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 PCI-Express is the GPU installation on motherboards.

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Adding multiple USB 2.0 controllers - what are the options?

I'm trying to connect multiple (10+) USB 2.0 cameras to a computer that has only 1 USB 2.0 controller and 1 USB 3.0 controller. From what I've learned basically the only option to increase available ...
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Should I activate "Active State Power Management" as PowerCFG suggests? [duplicate]

After reading about PowerCFG I ran PowerCfg /energy on an Admin Powershell which created a html "Power Efficiency Diagnostics Report" that included this bit as and "error": Power Policy:PCI Express ...
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HP Proliant ML110 G7 - install nVidia GTX dual width PCIe GPU in case?

I want to provide CUDA support for my HP Proliant server, but the case is only designed to support single width PCIe. When searching for an answer, I spotted that a number of users had already ...
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M.2 drives: difference in performance when plugged into different PCI lanes

A M.2 SSD can be plugged either into the PCI lanes that go straight to the CPU (if you're using a CPU that supports more than 16 lanes), or into the PCI lanes that go to the chipset. Is there any ...
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Issue with PCIe WiFi adapter and Apple AirPort Express

I've been using Apple devices for a long time. My WiFi router is AirPort Express and it has worked great with iMac (even though iMac was located far from the router). Now I build my new PC and bought ...
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PCI-e Wireless Adapter T9E performing poorly when GPU is 100%. PCIe bottleneck or overheat?

I'm running a Windows Desktop PC. I have dual GPU (GTX1080 PCI-E x16 and RX580 PCI-E x4). GTX1080 is used to drive display, while RX580 is purely for a specific computational GPU workload. The ...
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Is it true that PCI-E connections were initially connected to the Sourthbridge of the motherboard?

I read in an article from 2007 called "What Every Programmer Should Know About Memory" that the PCI-e connections were connected to the Southbridge chip in contrast with AGP connections which were ...
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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 ...
Pete's user avatar
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Should I install NVMe M.2 ssd in M.2 socket or in PCIe slot using PCIe adapter?

I have an asrock z170 pro4s motherboard and I need help with understanding where I should put the samsung 960 evo. http://www.asrock.com/mb/Intel/Z170%20Pro4S/index.us.asp http://www.microcenter.com/...
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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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What is the maximum bandwidth of PCIe x1 3.0 riser to USB 3.0 and then to PCIe x16 3.0?

If I connect my gpu to a riser that uses USB 3.0 what is the maximum bandwidth availiable to my GPU? The PCIe x1 3.0 bandwidth or the USB 3.0 bandwidth and what would that be?
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booting an m.2 SSD (Intel 520) using m.2-to-PCIe adapter?

so I have an Intel 520 m.2 card. It's my OS disk. I am currently using an m.2-to-SATA adapter so I can connect it to my Intel X58 motherboard. I want to connect it an m.2-to-PCIe adapter so I can ...
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Problems installing windows 10 on Asus ROG G752VS OC edition with m.2 RAID0 boot

I'm having trouble installing windows 10 on my Asus ROG G752VS OC edition laptop with two 512gb WD black PCIe NVMe drives installed and configured in raid0. I installed the drives and went into the ...
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pc does not boot when pcie card inserted

I built a new PC: Gigabyte GC-WB867D-I - 867MBit W-LAN <--PROBLEM When I insert this PCIe card, my computer does not boot. I disabled the Realtek LAN Controller in BIOS, updated BIOS, tried ...
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m.2 SATA to PCIe adapter [closed]

I bought two m.2 SATA SSD SanDisk SSD x400 128Gb. But my motherboard Asus Maximus IX Hero has only one m.2 SATA port m.2.1. Second m.2 port m.2.2 accept only PCIe devices. Now I want to buy m.2 ...
Vasilii Muravev's user avatar
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Internal SATA vs. PCIe-NVMe: Any compatibility?

I'm looking at the Lenovo T470p laptop that allows either a SATA storage drive or a PCIe-NVMe drive. Thing is, I already have a SATA SSD I'd want to use internally for now, but I want to be able to ...
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Where my PCI slots at?

So my computer's specs claim the following. I, however, can't find them when I open up the computer. I'm in desperate need of a SATA expansion. Where are these PCI-e slots and what are my options?
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Only first Nvidia card detected

Motherboard is a BIOSTAR Z270GT9 with three GeForce GTX 1060s (in PCIe x16 slot 1, 3, and 5). All of the cards are on USB powered riser cards, if that's relevant. I have Ubuntu Server 14.04 installed ...
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eSATA PCIe card, HotSwap, and errors

I've been using HotSwap (http://mt-naka.com/hotswap/index_enu.htm) to remove HDDs connected to an eSATA PCIe card. These drives are for backups. The problem is that every time I use HotSwap to eject ...
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How do I connect a video card which requires 6 pin PCIE, using a 8pin PCIE port on my PSU?

I bought a second hand pc recently with fairly decent specs, except for the video card, I have a bunch of spare SATA cables dangling(well,tucked away) in my PC but no Molex or PCIE 6 pin plugs. My ...
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Manufacturer says PCI Express can run at (x16, x8, x8) or x16, x16, x1, why not 16x, 4x, 4x?

So it is my understanding that you can pretty much stick any x1, x2, 4x or 8x PCI-E Device into an x16 PCI slot, but some manufacturers do not list this within the support configuration, in this ...
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How many QPI links does my system have?

My system has an Intel Xeon Processor E5-2630 v3 (8 cores, 2 threads/core). According to the Intel web page, there are 2 QPI links. Nevertheless, when running the pcm-pcie.x tool from the PCM tools ...
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12v 8 pin EPS to 12v 8 Pin PCIe

I have a power supply that I have harvested from an old cryptocurrency mining rig that I'd like to use on a new rig however the PSU only has 8 pin EPS plugs. There are six 8-pin EPS plugs plus a 20/...
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Does "64 PCIe lanes" for a CPU mean 4 devices at full PCIe 16-lane bandwidth?

At 16 lanes, a PCIe device has a theoretical bandwidth of 16 GB/sec over the bus and effectively (from my work with GPUs) 12 GB/sec. Now, if a CPU manufacturer offers a CPU with lots more than 16 ...
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Motherboard GPU Limit

Is there any limit on the number of GPU's we can connect to a motherboard? I'm not talking physically, which depends on the number or PCI-E slots available. Please consider the following example: A ...
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Is it possible to use the M.2 interface for other PCIe devices?

Since there are adapters to adapt M.2 to PCIe x4, I was wondering if such an adapter can be used to connect other PCIe devices like network interfaces or USB controllers to the system? Are there any ...
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2 cards: PCI-E 3.0 and 2.0 in PCI-E 3.0 slots. Will both work as PCI-E 2.0?

I am going to use 2 PCI-E cards in the same motherboard: one card is PCI-E 3.0 (8 lanes), another one is PCI-E 2.0 (8 lanes). MB is "MSI Z97 GAMING 5" which supports x8/x8 mode for lane splitting. ...
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How does a PCI slot work when among PCIe slots?

Lets say a motherboard has 1 PCI slot, is it sharing any bandwidth at all with the PCIe slots? I know PCIe slots have their own dedicated lanes.
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No display signal from graphics card

I am trying to figure out whether the graphics card is dead or just incompatible with the rest of my hardware. I've got: Motherboard: Intel S1200KPR CPU: Intel Xeon E3-1270 v2 Graphics card: SAPPHIRE ...
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How are PCI(e) errors propagated to userspace in case of errors?

PCIe supports various error reporting mechanisms, and I can see how a device driver would interface with these capabilities to handle specific error types and reinitialize the device in question as ...
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Linux / NVMe, disable interrupt coalescing

I'm looking at testing an NVMe device with interrupt coalescing enabled, and disabled. NVMe protocol defined interrupt coalescing parameters that can be passed to the device, and in free BSD the nvme ...
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Enable MSI on Intel PCI bridge

I'm using an HP Z400 Workstation with Linux kernel 4.9.20. I'm trying to enable MSI interrupts, however the PCI bridges seem to have MSI support disabled. By using lscpi -v I can see something ...
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Does the PCI bus for a device remain the same across mulitple computers that have the same BIOS, Operating System, and in the same PCIe slot?

My operating system is windows 10. I have a bat file that calls a device based on the bus number. This bat file will be copied to each PC and then cannot be changed. There are more then one of the ...
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Will a working GPU allways be displayed in the device manager ?

Supposing a working GPU is plugged into a working PCIe Slot, will it be automatically displayed inside of the device Manager of Windows, even if no Drivers are installed yet?
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Is there an alternate way to connect a eGPU in another way than using the PCI-E slot?

I have an Asus K55VD laptop connected to an external graphic card dock . I remove the WIFI card and insert a mini PCI-E cable , and on the other side of the cable it has a male HDMI , and it's ...
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Simultaneous IO to multiple SSDs in external USB 3.0 enclosures

UPDATE: Just tried this scenario on a board with eight extra SATA ports and it works. Slower than I'd thought but still acceptable. As per the discussion with David Schwartz I believe he may be ...
soulsabr's user avatar
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PCIe transfer rate

I have an Intel Atom D510 based motherboard with a PCIe card connected to PCIe x4 connector on the motherboard. I am seeing very slow PCIe transfer speed with Centos 7.3, though with Ubuntu 16.04 I am ...
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Do USB to PCI and PCI-E adapters exist?

I have the intention of connecting an assortment of different PCI and PCIe cards to my laptop. Obviously laptops don't have PCI or PCIe ports. Is there any adapter out there which will allow me to ...
DevelopedLogic's user avatar
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Unable to enable PCIe graphics

I've just bought Sapphire Nitro RX 470 graphics card (which is PCIe 3). My motherboard is Intel DH61WW (this is PCIe 2). I used to use integrated HD graphics, now I want to use this graphics card. The ...
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How to undo fastboot disable and CSM enable option in BIOS? currently have no display. Is clearing CMOS my only option?

So I just disabled fast boot and enabled CSM boot in order to try and get a windows 10 install USB to boot. The system won't boot now and I have no display. Is CMOS reset my only option in this case?...
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determine if mini pci-e wifi card is compatible with motherboard

I have an old Mini PCI-E wireless card: Intel Centrino Wireless-N 2230 I would like to upgrade this, but after briefly searching for a new PCI-E card I discovered specific cards are not compatible ...
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Can I somehow replace the "lever" on my PCIe 16x ports?

Can I somehow replace the "lever" on my PCIe 16x ports? My mobo has the following kinds of ports: and I happened to break one of the blue "levers", which made me think, whether these can be replaced ...
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Is it possible to use a PCIe NVMe SSD on an older Lynnfield/P55 chipset motherboard?

I have: A PCIe NVMe SSD An NVMe to PCIe x4 adapter card. An old Asus P7P55D-E motherboard. I have the PCIe x4 card sitting in the x16 slot, which I think is fine by the PCIe standard. The drive does ...
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Code 12 on a graphics card in a Thunderbolt 3 eGPU-enclosure

So, I'm trying to do the eGPU thing. I'm running Windows 10 (freshly installed, literally 15 minutes ago, no changes whatsoever) on a 2016 MacBook Pro (15", the one with two full PCIe busses over four ...
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PCI-E speed below expected value checklist

In short, my problem is that my GPU reports my pci-e speed as 4x, I'd expect it to be 16x or at the very least 8x. Here are the things I've tried so far: Ensured the GPU is in the correct PCI-E 16x ...
YellowPeak's user avatar
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Is there an alternative PCI wireless adapter equivalent to a PCI-E Archer T9E?

I just bought the TP-Link AC 1900 Wireless Duel Band PCI Express Adapter (Archer T9E) and when I looked inside my computer, I noticed my enormous graphics card was covering my only PCI-Express port. ...
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PCI-Express lanes for integrated and discrete video

This question is a follow-up for my previous question: Understanding of chipset PCI-Express lanes According to the manual my processor (Intel i7-6700k) has 16 PCI-E lanes. My motherboard (based on ...
Xeniya L's user avatar
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Understanding of chipset PCI-Express lanes

I've just read about PCI-E lanes limitations, and I want to know whether they are applied to my PC build or not. I want to buy MB based on Intel B150 chipset and use it with I7-6700k CPU (with ...
Xeniya L's user avatar
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Will this PCI-E 1X to 16X Bottleneck my GPU?

I've got two GPUs, a GTX 1060 and a GTX 960. I'd like to use them in the same rig (not SLI or CrossFire, just on the same motherboard) for power rendering. The problem is, my current Motherboard only ...
Josh Silveous's user avatar
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Motherboard doesn't recognize my second GPU

I just bought a GTX 750 Ti to accompany my GTX 1070, hoping to use it to make Blender go faster (and maybe for hackintoshy purposes), but my plans have been thwarted by Windows (or rather, the ...
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