→ nfsong:1055pin的就只有8 pcie槽? 06/24 18:50
http://kingofgng.com/eng/2010/06/22/intel-says-farewell-to-pci-bus/
Soon another technology that in the past years dominated the always-changing
universe of computer hardware will bite the dust. That’s the decision by
Intel, the merciless executioner of standards which the company itself
imposes on the market and that in the upcoming months will rule the end of
official support for the PCI bus. Developed by the Californian chipmaker in
1993, the PCI Local Bus standard has been implemented on all the
motherboards for x86 and compatible platforms until 2004, the year when it
passed on the baton to the younger and faster PCI Express technology.
As already happened in 2006 with the communication standard for storage
subsystems EIDE-Parallel ATA, the new chipsets for motherboards based on the
Sandy Bridge microarchitecture - that Intel will introduce in the last part
of 2010 - won’t have support for the old PCI bus also known as “
Conventional PCI”, implementing all the communications between peripherals
and subsystems inside the chipset via the PCI Express bus. The parallel PCI
standard is too old and too slow compared to the bandwidth offered by the
various PCIe versions, so Intel decided to get rid of yet another bottleneck
restraining the PC hardware evolution.
Intel PCI-free chipsets expected to be unveiled are H67, P67 e H61, they will
implement the new LGA1155 CPU socket (which would be a pin less than the
current LGA1156), will support 8 independent PCIe 2.0 lanes, Serial ATA
connections at 6 Gigabits and 14 USB 2.0 ports. Just to be clear, these
chipset are targeted at the consumer market while the new chipsets designed
for the enterprise market (Q67, Q65 e B65) will continue to support the PCI
bus. Intel’s choice may seem drastic, yet it is justified by the fact that
to this date, after 17 years since the technology appeared on the market,
most of the expansion cards on sale snubs PCIe and is designed to be housed
in a PCI slot.
Not that Intel alone, insofar as its monopolistic position on technology and
x86(-64) PC hardware may be, can rule the definitive death of a standard so
used and widespread in every kind of market: old technologies, the floppy
disks recent example proves it, tend to survive within the wrinkles of the
market until there is someone using or asking for them. Technology evolution
didn’t kill Floppy Disk Drives or Parallel-ATA yet and surely it won’t make
PCI bus and peripherals disappear so easily.
It’s similarly predictable that motherboards manufacturers, to remedy to
Intel death decree on PCI, will do exactly what they are continuing to do
nowadays to support the aforementioned FDDs and PATA ie they will pack
additional chips and electronic logics next to the ones included in the Intel
designs. The default circuitry will deal with the latest peripherals and
subsystems, while the custom components will continue to pump electric power
into the aged PCI cards.
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