Wednesday, August 19th 2009

ASUS Prepares P7P55D Premium, Equips SATA III

Here's our ASUS P55 motherboard of the day: the P7P55D Premium. Positioned in the high-end segment of socket LGA-1156 motherboards, this board boasts of support for SATA III 6 Gbps. Associated with the SATA III controller, is also an interesting feature. To begin with, the CPU is powered by a digital PWM circuit with "32+3" phases. Sure there are that many chokes, but we do suspect choke redundancy here. The CPU is wired to four DDR3 DIMM slots to support dual-channel memory.

Unlike the P7P55D Deluxe, this board makes do with two PCI-E 2.0 x16 slots, each of which arrange to 8-lanes PCI-E when both are populated. Other expansion slots include two PCI-E x1 and two PCI. Connectivity options include two gigabit Ethernet controllers, 8 channel audio, and a number of USB and Firewire ports. From the looks of it, there's also a place-holder for the NEC µPD720200 USB 3.0 controller, and its marked blue-coloured USB ports, though it's MIA.
The P55 PCH provides six SATA II ports, and an additional Marvell 88SE9123 controller gives out two next-generation SATA III ports. ASUS used an interesting (and expensive) method of making sure the controller works to its full potential. A PCI-Express 2.0 switch was added to the board, that connects to all the four PCI-E 1.1 lanes the P55 PCH provides, and gives out 12 PCI-E 2.0 lanes, with support for three ports in all. One of these ports, configured as PCI-E 2.0 x1, connects to the Marvell 88SE9123 (which is a PCI-E 2.0 x1 device) to make sure it is provided with a 500 MB/s interconnect, reducing its bottleneck compared to most other motherboards that simply connect one of the four PCI-E 1.1 lanes from the PCH to it. We think the two PCI-E x1 slots make for the rest of the PLX PCI-E switch's two ports. It is believed that the P7P55D Premium will launch in the next couple of months, if not being part of the first LGA-1156 boards from ASUS.

Source: XFastest
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28 Comments on ASUS Prepares P7P55D Premium, Equips SATA III

#1
Mussels
Moderprator
REVHEAD said:
Does the 500mbps include multiple drives in raid? is this per channell or per controller?
nothing mentioned so far has a data rate of 500 megabit.
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#2
3870x2
Mussels said:
Gbits vs Gbytes, to the controllers.


The best SSDs do around 220MB/s - and they're getting faster rapidly. Remember that this tech takes years to spread around in systems, better to release the ports before the drives so that people can actually use it when they need it.
Everything Ive stated are perfectly correct on bits/bytes, looks like no one has read the post, they just assume.. MB = 8Mb, does that make it easier?
Posted on Reply
#3
Mussels
Moderprator
3870x2 said:
Everything Ive stated are perfectly correct on bits/bytes, looks like no one has read the post, they just assume.. MB = 8Mb, does that make it easier?
may have been aimed at someone other than you.
Posted on Reply