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Would i5 2500k support the Asrock extreme 3 gen 3 for it pcie 3.0 slot

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December 2, 2011 7:30:26 AM

so hi im a noob. plz just tell yes or no and why. will the grapghics cards made for 2.0 pcie slots work on 3.0 and also will i5 2500k support 3.0 pcie slot.
and im really confused can u plz help list the pci and pcie slots on this mobo for me thx
December 2, 2011 7:50:56 AM

Graphics cards made for PCIe 2.0 will work with PCIe 3.0 since it's backward compatible.

The i5 2500K does not support PCIe 3.0.

The 2 long slots are the PCIe 3.0 and the 2 short ones between and beside them are the PCI.

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December 2, 2011 7:52:48 AM

You're asking the question the wrong way around. The motherboard is the basis, upon which the CPU and GPU are installed. If you have an LGA1155 motherboard, the i5-2500K will be supported. If the motherboard has PCI-E 3.0 slots, it will support PCI-E 3.0 cards as well as all previous PCI-E cards with the same size connection (AFAIK). PCI-E 3.0 equipment may not work on PCI-E slots lower than version 3.0 though.
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December 2, 2011 7:52:52 AM

PCI-E 2.0 is backward compatible with PCI-E 3.0 however 3.0 has triple data brandwidth while PCI-E 2.0 has double in fact they will work with each other but as a result loss in performance while PCI-E 2.1 will be fine with 3.0.

yes, 2500k support the PCI-E 3.0 however the mobos which are for sandy bridge are LGA 1155 now these boards comes with PCI-E 3.0 so yah! 2500k support them.
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December 2, 2011 7:59:10 AM


The i5 2500K does not support PCIe 3.0.

you are right but 2500k will be fine with pci-e 3.0
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December 2, 2011 8:01:47 AM

at this moment in time there are no PCI-e 3 cards, and PCI-E2 is not been fully used.

There's some confusion about where the pci-e controller sits as ivy-bridge is claiming that the cpu will enable 16xpci-e 3.0 lanes and an additional 4xpci-e 2 lanes. making it look like the controller is on the cpu (like the memory controller).

But to the OP there is no PCI-E3.0 support at the moment, and there are no cards that can use it at the moment, there are only mobos that claim that they will support pci-e3.0 so again that makes it seems that the controller is on the cpu.
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December 2, 2011 8:05:03 AM

might be intel released the sandy-bridge with pcie 3.0 controller.
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December 2, 2011 8:18:51 AM

limesword22 said:
so hi im a noob. plz just tell yes or no and why. will the grapghics cards made for 2.0 pcie slots work on 3.0 and also will i5 2500k support 3.0 pcie slot.
and im really confused can u plz help list the pci and pcie slots on this mobo for me thx

pretty much what 13thmonkey said.
the ivb cpus are rumored to have pcie 3 controller so you need an ivb cpu to use the pcie 3 (up to 8 gt/s). if you use sb cpu, the pcie slots will run on pcie 2 speed (up to 5 gt/s). your mobo manual will have detailed info on it.
@pro gamer: 2500k doesn't support pcie 3. it has 16 pcie 2 lanes. and intel unofficially supports 8 gt/s with sb-e (lga 2011).
pcie 3.0 cards are rumored to be backwards compatible with pcie 2.0 slots. i used 'rumored' a lot because my information comes from various leaks and rumors, they are not verified atm.
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December 2, 2011 8:22:07 AM

pro-gamer said:
might be intel released the sandy-bridge with pcie 3.0 controller.

nope.
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December 2, 2011 8:25:43 AM

The two questions got rather washed together and so we had confusing answers.
Quote:
will the grapghics cards made for 2.0 pcie slots work on 3.0

Yes. The PCI-SIG states complete backwards compatibility through its bus. It will however run at 2.1 bandwidth (2.0 has already been superseded).
Quote:
will i5 2500k support 3.0 pcie slot

No. The PCI-E bandwidth is provided DIRECTLY by the CPU - There is no (seperate) northbridge and so all PCI-E lanes are limited to the CPU. You PCI-E 3.0 motherboard will only run PCI-E2.1.

But to sum up the answer - it really doesn't matter. Your graphics card will NOT saturate the PCI-E 2.1 bus. It's like the whole SATA 3 6GBit/s with mechanical HDDs. The cables can shift more data, but the hard drive doesn't read any faster. [edit]stray apostrophe[/edit]
Maybe if you purchase an Nvidia Tesla card.....
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December 2, 2011 10:37:01 AM

13thmonkey said:
nope.

then which cpu can support pci-e3.0 only ivy bridge can handle what about the sandy bridge?
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December 2, 2011 10:45:24 AM

pro-gamer said:
then which cpu can support pci-e3.0 only ivy bridge can handle what about the sandy bridge?

afaik, no cpu officially supports pcie 3 atm. sb-e mentions up to 8 gt/s bandwidth support. amd is in too deep a mess to talk about it - they said people don't need it yet. intel is very hush-hush - they don't mention pcie version anywhere with sb-e. wikipedia says ivb and sb-e (i7 ee) supports it, no mention in the bd pages. wikipedia is not really reliable.
http://www.tomshardware.com/reviews/core-i7-3960x-x79-p...
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December 2, 2011 10:47:01 AM

pro-gamer said:
then which cpu can support pci-e3.0 only ivy bridge can handle what about the sandy bridge?


in the recent releases of ivy specs, pci-e3.0 is annouced as new functionality, therefore it is not in SB
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December 2, 2011 10:50:45 AM

pro-gamer said:
The i5 2500K does not support PCIe 3.0.

you are right but 2500k will be fine with pci-e 3.0

yes 2500K will work with PCI-E3 ready mobo, but the controller is on the CPU and therefore it will not work at 3.0 speeds.
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December 2, 2011 11:32:35 AM

Much ado about nothing...
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December 2, 2011 11:38:34 AM

+1 not needed yet, maybe not even till 7xx and 8xxx
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December 2, 2011 11:50:49 AM

13thmonkey said:
yes 2500K will work with PCI-E3 ready mobo, but the controller is on the CPU and therefore it will not work at 3.0 speeds.

thanks! means it will work of 2.0 or 2.1..
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December 2, 2011 11:52:51 AM

correct
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December 2, 2011 11:56:39 AM

13thmonkey said:
correct

thanks again mate!
so getting the pci-e 3.0 boards doesn't give any benefits to us with SB cpu's.
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December 2, 2011 12:02:29 PM

PCIe 3.0 boards don't benefit anybody currently. There are NO PCIe 3.0 CARDS YET!!!
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December 3, 2011 5:29:59 AM

ok i am so confused, YES IM NOOB
so give me a simple answer (btw u guys r very helpful thx)
so dis my build
cpu- i5 2500k
mobo- asrock extreme 3 gen 3
gfx- nvidia 560ti
mainly it, not including others -case....
will it be compatible,work well and will i lose any speed or face and troubles on the way?
thats all i want to know and do u guys think any other mobo r better then the one, i have chosen for around the same price? (135 dollars)
TY SO MUCH PPL FOR HELPING
:D 
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December 3, 2011 6:04:36 AM

yes, they all are compatible.nothing should be lose.
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December 3, 2011 6:18:50 AM

you build looks compatible. the asrock board might take a bit more vcore than others to overclock. make sure your keep your vcore low/close to default to keep power consumption down and for cpu longevity.
get a good 80+ psu for powering your system.
get a good cooler like cooler master hyper 212 plus or evo.
make sure your chosen case has proper air supply.
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December 3, 2011 7:32:17 AM

de5 thx so much do u think the antec 300 gaming case would do?
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December 3, 2011 7:40:39 AM

any mobo u guys suggest for about 130 dollars or less
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December 3, 2011 8:21:49 AM

limesword22 said:
any mobo u guys suggest for about 130 dollars or less

round up article: From $100 To $160: Five Z68-Based Boards, Compared
GIGABYTE GA-Z68A-D3H-B3 LGA 1155 Intel Z68 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard $129.99
ASUS P8Z68-V LE LGA 1155 Intel Z68 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard with UEFI BIOS $132.99 <- only x16+x4 cfx
list of z68 motherboards from $89 and up. select the one you like, search for reviews, make sure the motherboard meets your need.



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