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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How to understand another lspci tree format?

I can understand this lspci output But, I cannot understand this: // lspci -tv -+-[0000:d7]-+-05.0 Intel Corporation Sky Lake-E VT-d | +-05.2 Intel Corporation Sky Lake-E RAS ...
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How to connect mini PCIe that uses USB to PCIe?

I have a Quectel LTE-A EM160R-GL which I need to connect to a motherboard, this module is using M.2 using the USB interface. I have read similar posts such as these: Does a mini PCIe to PCIe slot ...
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Installing PCIe SSD on an enclosure for NVME Thunderbolt 3

I have OWC Aura X2 PCIe 1TB SSD, and I’m trying to purchase a right enclosure. I see most enclosures are for either NVME and SATA. I read some articles that PCIe and NVME share the same lanes, but ...
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How to get Gbps Connection on multiple LAN ports

My office setup has 1 Server and 1 Proxy server (Windows Server 2008 R2 and Windows 10 respectively). All of our applications are hosted on the Main Server. The proxy server has 2 LAN ports, one on-...
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How to know the version of PCIe of motherboard?

I have a laptop that I want to upgrade its SDD drive. How can I figure out what version of PICe is supported by the motherboard? (through Windows and not by opening up the laptop).
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What type of adapter/enclosure to get from Amazon U.K. for LITEON CL1-3D256-Q11

Friend of mine’s Dell Windows inspiron 2-in-1 laptop/tablet won’t boot, has unbacked up last three years of uni work on it, including his final dissertation of this year. It goes into a windows ...
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Can I use NVIDIA A100 40GB PCIe GPU with a PCIe ver 3 connector?

Can I use an NVIDIA A100 40GB PCIe GPU on a motherboard with PCIe ver 3 connectors?
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NVMe drive is only using 1x PCIe lanes when 4x are available

I have a HP ENVY Desktop - 795-0017na which I have upgraded with a Samsung 970 EVO Plus 500GB drive, using a Silverstone ECM22 adapater to fit it into a PCIe x4 slot on the motherboard. The ...
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Frequent write errors to new SSD - Faulty hardware or configuration issue?

I replaced the primary boot drive (SSD) on my Alienware 17 R4 a few months ago after it died on me. Since then, my computer will spontaneously just stop fulfilling commands, and eventually grind to a ...
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Why is my Wi-Fi card permanently disabled after I wake my PC from sleep?

I have been having this problem for months, where if my PC goes to sleep and I wake it back up, the WiFi card is disabled and I cannot enable it on the "Control Panel\Network and Internet\Network ...
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What PCIe slots lanes do I have and do they overlap or conflict when installing PCIe SSD Card into slots on motherboard?

What PCIe slots lanes do I have and do they overlap or conflict when installing PCIe SSD Card into slots on motherboard? Dell Motherboard Model and more references. Dell Vostro 3902 - Motherboard: CN -...
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WHEA_UNCORRECTABLE_ERROR after SSD install, SATA to PCIe NVMe

I have a WHEA_UNCORRECTABLE_ERROR after I installed a new SSD. I have a Dell Inspiron 15 7567. From factory it had a Toshiba M.2 SATA SSD Gen 3x4 2280 128GB as the main hard drive and a 500GB HDD. I ...
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Can you use PCi x16 to PCi x16 cable to make graphic card portable?

i have two computers that require a good graphics card for rendering. but since I never use the two computers together. what I want to do is cut a hole through the top of both the computers and run a ...
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D4 error motherboard code "PCI resource allocation error. Out of Resources" with Nvidia M40 24 GB

I try to put an Nvidia M40 with 24 GB of ram into my PC and it get that error: ... PCI resource allocation error. Out of Resources ... On the moderboard I can see D4. My components: Motherboard: ...
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Can pcie slots on two hosts transmit data through cables?

Both PC motherboards and server motherboards now support pcie interfaces, which are very fast.If the pcie between two PCS can be connected directly to transfer data, they can be faster than regular ...
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Why do I have to remove/rescan my PCIe devices for the Kernel to allocate it's BAR memory?

When I cold-boot my SuperMicro server, the kernel dmesg log states that it finds my PCIe cards and their required MEM spaces for their BARs... [ +0.000036] pci 0000:19:00.0: [10de:1eb1] type 00 class ...
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What is difference between PCIe, mini-PCIe, M.2 m-key and e-key connections?

Do PCIe, mini-PCIe, M.2 m-key and e-key use the same protocol but are in a different form factor? If not, can I have the pinouts and the controller chip to convert PCIE to mini-PCIE and M.2?
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Multiple PCI-E ports without a switch

I was just thinking of designing an IO board for cm4 but when I was deciding a PCI-E switch I came across this image (see the lower part of the image): I saw that all the devices were having a common ...
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Is this PCIE x 4 connector of an NVMe SSD compatible with the connector of my current NVMe SSD (SATA)?

I want to upgrade my current stock NVMe to something like this Samsung NVMe. My laptop is an Asus FX553VE. However I am totally confused about what is compatible with my laptop and what isn't. The ...
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Untranslated address in PCIe

I was going through the ATS feature which has been added in PCIe. I came across terms like Untranslated address and Physical address. Essentially the Translation agent on the host will convert ...
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Motherboard does not recognize PCI express card (Win7)

I have a Gigabyte GA-990fxa-ud3e main board (9 years old, still running strong). I just got a free NVME drive (Toshiba KXG50ZNV256G). The mobo has no support for NVME, so I purchased two different ...
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What PCI Bus ID is 0x1?

I need to find what is connected at Bus id 0x1. On Linux doing lspci I got the bus ids in a different format such as 00:01.0. I guess these are same, just x is used instead of ':' in the first ...
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800W non-modular PSU splitting

I am case-swapping an HP Omen 30L desktop that came with an 800w psu. According to the PSU label, the 12v rail can support up-to 60A. PSU is non-modular and it has 2x8 pin PCIe connectors. Would it be ...
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Multi-network PCIe WiFi card do they exist?

I'm looking for a PCIe WiFi card that will allow me to connect to 2 separate WiFi networks simultaneously. I've tried searching but keywords like dual network, dual band, dual SSID etc etc but they ...
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Windows 10 PCIe write to single BAR

I am testing a simple PCIe design for an FPGA board. The design maps a single hardware register to the BAR address and the register can toggle an LED. Example: the BAR was getting assigned 0xf7c00000, ...
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Dell Optiplex 9010 will not post with PCIe graphics card

I was given a Dell Optiplex 9010 minitower to troubleshoot. Everything works fine, until you plug in a PCIe graphics card. The machine boots off the Intel integrated graphics. If a PCIe graphics ...
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Install 2 PCIe NVMe SSDs in same pc

Am trying to install two PCIe NVMes in my pc with this pcie adapter (aliexpress pcie adapter) with second GPU PCIe slot. When I install both devices only one device (which is installed on motherboard'...
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Does the PCIe x16 small slot need to be occupied?

This may be a silly question but I'm asking in desperation as I don't want to return my RAID controller card (I'm finding them difficult to source as i need PCIe 3.0 and hardware RAID). I stupidly ...
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PCIe 3.0 x8 in PCIe 4.0 x16 [duplicate]

Can I put PCIe 3.0 x8 in PCIe 4.0 x16 slot? for example, can I add this Network Adapter to this Bundle?
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PCIe Connectors Don't Match Up (?)

I am trying to install a new VGA video card to my computer (a Dell Optiplex 380 mini-tower). This computer has a PCIe slot for add-in cards. I purchased a PCIe VGA video card on eBay but it doesn't ...
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Removing PCIe video card, trying to use integrated graphics

I inherited a computer that had a PCIe graphics card plugged in. I want to remove the PCIe graphics card and use the motherboard HDMI/VGA so I can free up the PCIe slot. The problem is that the PC ...
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how to correctly connect two pcie 4.0 nvme disks on X570 AORUS MASTER

I found out my second SSD disk to be slow and I wonder whether it is connected to the best way possible to my motherboard. I've read the manual but honestly I don't understand the sharing of PCIe ...
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Can't get the GPU recognized through the M.2 riser

I need help connecting my GPU through the M.2 port. I am using the M.2 to USB 3.0 adapter. The adapter is connected to a riser with USB, and the riser is connected to GPU with PCIe 16x. The riser and ...
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PCIe 3.0 x8 GPU with x16 pins; does it work as PCIe 2.0 x16?

I'm looking at a cheap Radeon HD 8570 for an older SFF PC, and I looked it up and saw it used PCIe 3.0 x8. However, I saw that it had pins like an PCIe x16 card. I think there were traces going to the ...
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Will game performance suffer by moving OS from PCIe 3.0x4 to SATA III SSD?

I currently use a 1TB PCIe 3.0x4 (2300MB/s) NVMe SSD as both my OS boot drive and game storage drive. However, it's quickly filling up. I have a 500GB SATA III (560MB/s) SSD sitting in a drawer doing ...
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Is the ssd faulty if its sequential read isnt upto the advertised-mark?

I have just brought a new WD SN550 500GB SSD and crystal disk mark 8's SEQ1M Q8T1's result for my SSD is around 1600 MB/s which is very low compared to 2400 MB/s as advertised by Western Digital, ...
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Can an nvme/m.2 card be adding as an additional drive to any motherboard?

I'm trying to expand my storage for a gaming pc, and have the option to get a Sandisk 3d ultra ssd or an nvme card for roughly the same price. I would have to buy an nvme to PCIE adapter, of course. I ...
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PCIe lanes for NVMe Memory

I have a NVMe IC which has 2 PCIe lanes. My processor supports only 1 PCIe lane. Can I connect this NVMe memory to my processor? Will it work properly with less bandwidth? What are the downsides and ...
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Clean Windows install on Lenovo M720q with M.2 drive

I was playing around with the computer mentioned in the topic. The play ended up with wiped hard drive. I used to have there VMWare ESX installed. Now I wish I return to Windows. I have downloaded Win ...
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gpu on riser on main slot pcie x16 won't show in device manager?

I am trying to run my rtx 3070ti on this mobo but when I check in the device manager there is not rtx 3070 ti just onboard graphics and some unknown adapter. Here is what the rig looks like. Any help ...
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how can I power my rtx 3070ti lhr?

I have an rtx 3070ti LHR , it has dual 8-pin and it looks like its tdp is 290watts(I'm still searching for the right answer because some sites say 3070 needs 290watts but what I have is 3070ti). I ...
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PC won't boot when having the GPU connected after enabling Secure Boot

I wanted to upgrade to Windows 11 on my machine which worked perfectly up until now, so I checked the requirements and saw that I needed to enable Secure Boot in order to do so. Since I have a ...
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Parallel port mini PCI express adapter not assigned in Linux

I have an embedded board (with Intel Atom E3930) on which I installed a mini PCI express expansion board, to get an IEEE1284 EPP/ECP parallel port. The board is recognized, but I don't see any device ...
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Is there a TPM adapter for motherboards with no TPM header?

OK,... So I have a motherboard that is a bit old, meaning, I just do not have the funds to upgrade it, the Processor, and RAM to something comparable AND have the TPM SPI module interface pins. So my ...
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Second monitor via usb C using ASMEDIA ASM 3142

I would like to add a second monitor to computer unit, the setup is not very powerful (it doesnt have to be) it does not even have a graphics card in it. Nonetheless a second monitor will go a long ...
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Will my SSD need to be formatted at any point?

I'm going to buy a laptop soon and it comes with a 512 GB SSD PCIe in it's main slot and an empty secondary PCIe slot that can go upto 1 TB. Hence, I will also be purchasing a 1 TB SSD PCIe. I wish to ...
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Serial mouse recognizes clicks but not movement

I have a serial mouse - CH Products DT225 datasheet here - and a PCIe serial card - the PEX2S953. The driver installation went fine and the computer recognizes them as ports. I set them up with one ...
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Where does this PCIEX4 share bandwidth - LGA1200 or Z590?

In the manual to this ASUS Prime Z590-a motherboard, there is a page dedicated to shared bandwidth: What is strange to me is that the PCIEX4 is unspecified. Does this have lanes directly connected to ...
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What NVME speeds should I expect from this motherboard's PCIe slots?

I am testing this board: Gigabyte B550M DS3H > pdf manual It has two M.2 slots and I want to also use two PCI-e connectors with adapters to add 2 more NVME drives (so 4 in total). It is for a MySQL ...
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Is it possibe to convert an existing PCIe gen3.0 x16 Graphics card to PCIe gen4 x8 without sacrificing the bandwidth

Since PCIe gen4 x8 speed(15.754 GB/s - source from WikiPedia) is equal to PCIe gen3 x16. Is there any converters available to do this?? for example I have an 11900k or 5900x with 2 GPU's(for PCIe pass-...
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