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(Redirected from PCI mezzanine card)
A PCI Mezzanine Card or PMC is a printed circuit board assembly manufactured to the IEEE P1386.1[1] standard. This standard combines the electrical characteristics of the PCI bus with the mechanical dimensions of the Common Mezzanine Card or CMC format (IEEE 1386 standard)[2].
Mezzanine is a term used to describe the stacking of computer component card s into a single card that then plugs into the computer bus or data path. The bus itself is sometimes referred to as a mezzanine bus. The term derives from the Italian word, mezzano, which means middle. The more common use of this term is in architecture, where it is. Optional Features. C04123239 – DA – 14208 Worldwide — Version 40 — September 17, 2014 Page 12. Fibre Channel Support Up to two (2) optional Fibre Channel mezzanine HBAs are supported on the HP ProLiant BL460c Gen8. Compatible SAN HP ProLiant BL460c Gen8 server blades are optimized for HP MSA, EVA and XP. X16 PCIe 3.0 Type A (supports Type A mezzanine cards) (expansion slot 1) x16 PCIe 3.0 Type B (supports Type A and Type B mezzanine cards (expansion slot 2) Mezzanine card options include: Dual-port 20Gb FlexFabric, Dual-port 10Gb FlexFabric, 10GbE options, and quad-port 1Gb Ethernet server adapter mezzanine options for additional network ports.
A mezzanine connector connects two parallel printed circuit boards in a stacking configuration. Many mezzanine connector styles are commercially available for this purpose, however PMC mezzanine applications usually use the 1.0 mm pitch 64 pin connector described in IEEE 1386[2].
A PMC can have up to four 64-pin bus connectors. The first two ('P1' and 'P2') are used for 32 bit PCI signals, a third ('P3') is needed for 64 bit PCI signals. An additional bus connector ('P4') can be used for non-specified I/O signals. In addition, arbitrary connectors can be supplied on the front panel of the chassis or case; also known as a 'bezel'.
The PMC standard defines which connector pins are used for which PCI signals; in addition it defines the optional 64 'P4' connector pins for use of arbitrary I/O signals.
It enables manufacturers to offer products that are compatible with the well-established PCI bus, but in a smaller and more robust package than standard PCI plug-in cards. The word mezzanine, derived from the Italian mezzanino and also commonly used to refer to a platform inserted between two floors of a building, describes the way in which a PMC fits between two adjacent host cards in a standard card rack, attached to one of the cards by connectors and mounting pillars. A single PMC measures 74 mm x 149 mm. The standard also defines a double-sized card, but this is rarely used.
Carrier cards that accept PMCs are usually made in the Eurocard format, which includes single, double and triple-height VMEbus cards, CompactPCI (cPCI) cards and more recently, VPX cards. One PMC fits on a standard 3U carrier card while 6U models (typical for VMEbus cards) can carry up to two PMCs. PMCs were also used in early ATCA systems prior to the advent of the Advanced Mezzanine Card or AMC.
For the PMC standard, I/O technologies account for much of the market, but various card functions are commercially available including Intel architecture and PowerPC processors, graphics cards, and memory cards. I/O cards are available such as serial communication controllers, SCSI controllers, graphics controllers and FireWire controllers.
Variants[edit]
Additional standards exist that define variants of the standard PMC. For example,
- PMC-X (PCI-X PMC) defined by the VITA 39 standard
- PPMC (aka PrPMC; processor PMC) defined by the VITA 32 standard. I.e. for allowing processors to have host or monarch, support on a PMC. Additional signaling is defined so that the PrPMC can work as the host processor on a PCI bus. The intention is to allow a monarch PMC to control the PCI bus. This is usually a requirement if the PMC is to act as a host processor module.
- CCPMC (conduction-cooled PMC) defined by the VITA 20 standard
- XMC, or Switched Mezzanine Card, (PMC with high-speed serial fabric interconnect) defined by the VITA 42 standard. XMC specifies a fifth connector ('P15') that supports PCI Express (VITA 42.3) or other high speed serial formats such as Serial RapidIO (VITA 42.2) and Parallel RapidIO (VITA 42.1).
- FMC – FPGA Mezzanine Card provides a standard mezzanine form factor that offers a flexible, modular I/O interface to an FPGA located on a host system baseboard or carrier card. For an overview read: Introducing the FPGA Mezzanine Card: Emerging VITA 57 (FMC) standard brings modularity to FPGA designs. VITA 57 defines both convection- and conduction-cooled FMC form factors.
References[edit]
- ^'IEEE Standard Physical and Environmental Layers for PCI Mezzanine Cards: PMC'. IEEE STD 1386.1-2001: 1–14. August 2001. doi:10.1109/IEEESTD.2001.93279. ISBN978-0-7381-2830-6.
- ^ ab'1386-2001 - IEEE Standard for a Common Mezzanine Card (CMC) Family - IEEE Standard'. ieeexplore.ieee.org. Retrieved 2017-12-12.
External links[edit]
Retrieved from 'https://en.wikipedia.org/w/index.php?title=PCI_Mezzanine_Card&oldid=929677297'
Object Name: emr_na-kc0116185en_us
Original owner: KCS - ProLiant Servers
Version state: final
FACT:HPE ProLiant Gen8 Servers
FACT:FlexibleLOM
Questions/Symptoms
SYMPTOM:FlexibleLOM
GOAL:What is FlexibleLOM?
CAUSE:No Cause
Answer/Solution
FIX:
What is FlexibleLOM?
System Board with an embedded NIC is referred as LAN-on-motherboard (LOM) architecture.
FlexibleLOM uses a system board edge connector that accepts a FlexibleLOM adapter, which integrates seamlessly.
Benefits of FlexibleLOM over LOM (LAN on Motherboard)?
In previous generation servers, we had LOM which is integrated onto the system board. If a user desired a different kind of networking adapter, they would need to purchase a PCI adapter and install it in a slot in the server. This was consuming mezzanine or PCI slots which reduced the flexibility to add other mezzanine cards or PCI cards.
What is FLR and FLB?
FlexibleLOM Rack (FLR) adapter for rack mount servers.
FlexibleLOM Blade (FLB) adapter for Blade servers.
What is the PCIe interface used by FlexibleLOM in Rack Servers?
FlexibleLOM technology uses a custom implementation of the PCIe 3.0 x8 interface. FlexibleLOM technology does not require additional CPU resources over standard LOM architecture and does not occupy a regular PCI slot.
What is the interface used by FlexibleLOM in Blade Servers?
FLB uses PCI Express v2.0 (Gen 2) x8 interface. The FlexibleLOM Blade adapter installs as a daughter card on the server blade board, just like a mezzanine card.
How to install FlexibleLOM?
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Refer to the respective server’s maintenance guide or FlexibleLOM’s installation guide.
Which servers use FlexibleLOM?
At the time of writing this article, the following Gen8 servers use FlexibleLOM technology.
ProLiant DL (Rack):
HP ProLiant DL160 Gen8
HP ProLiant DL360p Gen8
HP ProLiant DL380p Gen8
HP ProLiant DL385p Gen8
HP ProLiant DL560 Gen8
ProLiant SL (scalable):
HP ProLiant SL210t Gen8
HP ProLiant SL230s Gen8
HP ProLiant SL250s Gen8
HP ProLiant SL270s Gen8
ProLiant BL (Blades):
HP ProLiant BL420c Gen8
HP ProLiant BL460c Gen8
HP ProLiant BL465c Gen8
HP ProLiant BL660c Gen8
HP ProLiant WS460c Gen8
Note: Replacing a system board will not replace the FlexibleLOM.
Note: Part numbers are subject to change without notice, please refer to HP PartSurfer for parts numbers.
DIMM mismatch across slots detected The following DIMMS should match in size and geometry: DIM A1, A2 & A3 The following DIMMS should match in size and geometry: DIM B1, B2 & B3' Currently bank 0 has 2,2,4 modules and bank 1: 2,2,4. Can you advice the correct configuration for memory upgrade? I have looked into HOM, but still don't understand. Big dice dimm mismatch across slots detected means big wins.The Slots feel interactive (due to their touch screen nature) and immersive (due to the dimm mismatch across slots detected excellent sound and full phone screen takeover) to such an extent that there are a number of Android Free Slots that we like more the the laptop versions! Dimm mismatch across slots detected. DIMM mismatch across slots detected The following DIMMS should match in geometry: DIM A1, A2 & A3 The following DIMMS should match in geometry: DIM B1, B2 & B3. According to the manual they should be correctly installed (Optimizer 2-GB shows slot 1, 2, 3). So is the problem with the rank? The manual does not say that the ranks cannot be mixed. DIMM mismatch across slots detected'. Can I install them both to get 12Gb of memory? From server documentation: 'Memory modules of different sizes can be mixed in sockets 1 to 4 (for example, 2 GB and 4 GB), but all populated channels must have identical configurations.' Players are dimm mismatch across slots detected r610 recommended to shift to another slot machines if they are not winning on a given slot machine. These players are gambling homes on every card.One common misconception that's used as a plot point in television and film is when a poker player has to risk his house or something in order to cover the size of a bet someone else made at the table.
HP FlexibleLOM adapters for HP ProLiant Gen8 rack mount servers:
Spare Part# | Fabric Connectivity | |
HP 1GbE 4-port, 331FLR Adapter FIO Kit | 629135-B21 | Large send/receive offloading, VLAN tagging, virtualization support |
669280-001 | 1 Gb Ethernet | Large send/receive offloading, VLAN tagging, virtualization support, TCP checksum and segmentation, MSI-X, Wake-On-LAN, Jumbo frames, IEEE 1588 |
649869-001 | 10 Gb Ethernet | VLAN tagging, NIC teaming, PXE boot, virtualization support |
634026-001 | 10 Gb Ethernet, iSCSI, FCoE, FlexFabric | |
HP InfiniBand FDR/EN 10/40Gb 2-port, 544FLR-QSFP Adapter | 649282-B21 | Dual functionality: IB bandwidth up to 56 Gb/s, Ethernet bandwidth up to 40 Gb/s |
HP InfiniBand QDR/EN 10Gb 2-port, 544FLR-QSFP Adapter | 649283-B21 | Dual functionality: IB bandwidth up to 56 Gb/s, Ethernet bandwidth up to 10 Gb/s |
669281-001 | 10 Gb Ethernet | Jumbo frames, PXE boot, checksum segmentation offload, time stamping (IEEE 1588), virtualization support |
HP FlexibleLOM adapters for HP ProLiant Gen8 c-Class server blades:
Spare Part# | Fabric Connectivity | |
HP Ethernet 10Gb 2-port 560FLB FlexibleLOM | 655639-B21 | HP teaming, iLO, LSO and checksum offload, time stamping (IEEE 1588), virtualization features |
656246-001 | 1 Gb Ethernet | Time stamping/synchronization, DMA coalescing, RSS, PXE boot, large send offload, Jumbo frames |
657132-001 | 10 Gb Ethernet, Virtual Connect Flex-10 | TCP offload engine, MSI/MSI-X, virtualization features |
649940-001 | 10 Gb Ethernet, iSCSI, FCoE | Multi-protocol offloads, industry-leading performance-per-watt power savings |
Note: Product images are for illustrative purposes only. Actual product may differ.
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Figure 1: FlexibleLOM for Rack Servers.
Figure 2: Rack Server with FlexibleLOM (FLR).
Figure 3: FlexibleLOM for Blade Servers.
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Figure 4: Blade Server with FlexibleLOM (FLB).
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