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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Can you help me find out if my HP Notebook motherboard supports both M.2 SATA and M.2 PCIe SSD?

I would like to purchase an SSD for my HP Notebook of the following specification board specifications I would like to know if the motherboard supports SSD of M.2 form factor. If it does support, I ...
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Motherboard doesn't POST with pci network card plugged in, but both motherboard and network card work fine if network card is hot-plugged

I recently got my hands on some old computer parts. An Asrock H61m-DPS motherboard, an intel i3-2120, and a D-link DGE-530T rev-B2 PCI gigabit ethernet card. After I finished building this PC, I ...
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Struggling with X670E PCI Lanes

I'm struggling to understand how many lanes I'll get from an X670E build: Here the specs of the machines I would like to build: 7950x ASUS ProArt X670E-CREATOR Corsair Vengeance DDR5 32GB (2x16GB) ...
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How to determine if there is a support for NVMe

I have Acer Aspire 3 A315-53G, I want to upgrade my laptop with m.2 SSD. There is a slot for it but the manual of laptop doesn't provide any info on it, I asked official support but the answers are ...
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How do I attach a 4-lane PCI Express HDD controller card to the so-called U.2 connector of a Mixtile Blade 3?

I'd like to use a part of my Mixtile Blades as storage nodes with SSD attached to them. The SSDs are situated in a backplane system with miniSAS (SFF-8643) jacks on the back, one for 4 drives, the Icy ...
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Linux Kernal 5.15.0-50 PCI device enumeration diff. from 0-48

I've been using Ubuntu on a Dell laptop successfully for some time but yesterday when booting the OS seemed to fail to enumerate all the devices. The symptoms were that the Wi-Fi module, the track ...
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Is it possible to disable an M.2 SSD without physically unscrewing it?

I want to be able to "hide" the presence of my M.2 NVMe ssd. For example, it can be useful when experimenting with OS installation to experimental drive, and you want to be sure it wont ...
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Maximum HDD size supported by drives connected via PCI Express

is the maximum supported HDD size of drives that are connected via PCI Express expansion cards limited by the motherboard of the PC or by the PCI Express card/driver? Why do I want to know that? I ...
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PCIe x8 card produces boot loop in PCIe x16 slot on Gigabyte GA-B75N board

I have a Gigabyte GA-B75N board (https://www.gigabyte.com/de/Motherboard/GA-B75N-rev-10/support) together with an i3-3240 and a LSI SAS9223-8i (a IBM OEM part: https://lenovopress.lenovo.com/tips0856-...
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BIOS not waiting for USB3 PCIe device to inititialize Asus Z170 Sabertooth

I have a USB3.0 over fiber extender PCIe card which I'm trying to get to work in my Asus Z170 Sabertooth motherboard. The device is basically a USB3.0 hub at the end of a invisible SFP+ network. The ...
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How does PCIe card vendors sign option ROMs?

If secure boot is enabled UEFI system would permit to run only signed Option ROMs. I presume PCIe card vendors want their devices to work even if Secure Boot is enabled. Therefore how does PCIe card ...
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Is a half-length PCI Express x8 Gen 3 card compatible with a PCIe x4 Gen3 slot?

I have a card with a half-length PCI Express x8 Gen 3 output. Is it compatible with Dell Precision 3660 Tower which has one PCIe x4 Gen3, one PCIe x4 Gen4, and one PCIe x16 gen5 (for the GPU only)? ...
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Does the PCIe root complex have the same GPU-GPU performance compared with discrete PCIe switch?

Example system 1: SuperServer 420GP-TNR with 2 CPU and 8 GPU. Each CPU and 4 GPUs connect to a 5-port PCIe switch, each PCIe 4.0*16 port is ~32GB/s (one direction). The two CPUs are connected with ...
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PCIE x4 or x16 for data Science?

Processor: i5 12600kf Graphics Cards: RTX 3090 and RTX 3050 I have the MAG Z690 TORPEDO motherboard. This board has 3x PCIe x16 slots, as follows: PCI_E1 (From CPU) Supports up to PCIe 5.0 x16 PCI_E3 (...
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Unable to figure out the type of SSD I have

SSD: Can anyone please help me find out whether this SSD is SATA M.2 or NVMe? Thanks
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SSD not recognised as bootable after motherboard replacement

Since 2019, I have had a very nice PC setup at home - based around the following motherboard: ASUS PRIME AMD Ryzen X470-PRO AM4 ATX Motherboard However last week I discovered that my computer (which I ...
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Can I plug a graphics card with PCI Express 4.0 x4 interface into a motherboard with 1x PCIe 4.0/3.0 x16 slot?

I am planning to buy an MSI Radeon RX 6500 XT MECH 2X 4G OC graphics card and an ASUS PRIME B660M-A WIFI D4 motherboard. On the motherboard specs, it said : Intel® 12th Gen Processors 1 x PCIe 4.0/3....
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Since my power supply doesn’t provide an 8 pin cable to connect it to my GPU, then what should I connect to my GPU?

I replaced this graphic card: With this Asus Dual GeForce RTX™ 3060: And this GPU needs 8 pins but my power supply has these. Since my power supply does not provide 8 pin, to connect it to my GPU, ...
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Is there a way to identify the PCIE Speed for a device using powershell (Win10)? [duplicate]

This way I can determine the transfer rate of the device and relate that to the generation of the PCIE device (PCIE 3.0, 4.0, etc)
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3.5mm PCIe Headset sound card I.e.same as laptop - not seperate mic socket

I recently built a few new PC's for our home and buying budget motherboards I was surprised I couldn't find any with headset output either for front panel or rear panel connections (its been 5 years ...
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PCIe link to NVMe drive downgrades to 2.5GT/s (PCIe 1.0) after writing data

I put a MKNSSDPL2TB-D8 NVMe drive in a Lenovo Thinkpad E595 laptop. When checking the speeds with dd, I noticed that they are not very good. It turns out that after the test, the link speed was ...
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How can I switch the bandwidth of my PCIE 3?

I've been tinkering around looking for ways to downgrade the PCIE 3 bandwidth allocated for my Nvidia GPU from x4 to x2. My reason is I like to allocate x4 to my NVME SSD. I tried looking at BIOS, but ...
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GPUs benchmark terribly when in either of my PCI-E slots - motherboard issue?

System -> GTX 960/1060, Asus Z97-AR mobo, Core i5 4460, Windows 10 I've tried a 960 and 1060, both perform terribly in either of the PCI slots on the mobo. I've benchmarked the GPUs in a friend's ...
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RDMA on Quadro RTX 6000

I have successfully done RDMA transfers on Nvidia Quadro RTX 6000 cards but I notice that the BAR 1 is only 256 MiB which is too little for our application case. So, I have looked around about this ...
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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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