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KNoro
New Contributor I
2,205 Views

DX79TO And PCIE 3.0

Hello All,

I am using a DX79TO with an i7 3930k.

I want to purchase a Radeon HD7870XT and that card uses PCIE 3.0.

The box of my DX79TO has an * by the PCIE 3.0 saying it would work with processor that supports PCIE 3.0.

So would the i73930k enable PCIE 3.0 support on this board.

Thanks

0 Kudos
38 Replies
idata
Community Manager
272 Views

Hello warpspeed,

 

The motherboard will work at PCI Express* 16x revision 3.0 bus speeds when using a third generation processor.

 

In your case, the processor will support the PCI Express* 16x revision 3.0.

 

Regards. 

KNoro
New Contributor I
272 Views

Hello,

Your answer was rather confusing.So does it or does it not support PCIEx16 3.0

Thanks

ZAgha
New Contributor II
272 Views

Well it's not a simple yes or no answer.

However, to answer your question:

Officially at the moment, due to the CPU limitation your board will NOT support PCIE 3.0

KNoro
New Contributor I
272 Views

Its not that is a cheap CPU.Why is it then a limitation.This can easily be implemented via a BIOS update.

I feel Intel owes us(the customers) this.The CPU does support the bandwidth needed.

KNoro
New Contributor I
272 Views

Can we expect an official fix in a further BIOS update?

That would be the best solution for the problem.

Silvia_L_Intel1
Employee
272 Views

hello,

The support of PCIe 3.0 it not something that can be simply added with a BIOS update as it is set by the electronic design.

So far there are no plans to release processor models supporting PCIe 3.0 to work with the X79 chipset based motherboards.

ZAgha
New Contributor II
272 Views

Dear Sylvia,

The processors on LGA 2011 do support the PCIE Gen 3.0 but not out of the box.

I am able to run my two 680 GTX in Gen 3.0 using the Nvidia Force enable... & with a few tweaks I was able to run my LSI Mustang RAID card on Gen. 3.0

On DX79SI

Why Intel in their infinite wisdom decided to disable the PCIE 3.0, I don't know!! Maybe, they are planning for something in the future "e.g. Ivy Bridge-E which we can have those processors on our boards via a BIOS update"

Just maybe....

KNoro
New Contributor I
272 Views

Hello,

Then why does the motherboard box state that PCIE 3.0 will be supported with a compatible processor?

If Nvidia can force this board to work at 3.0 why can't Intel release a fix officially, when the board does have the necessary bandwidth to support this functionality?

ZAgha
New Contributor II
272 Views

Dear warpspeed,

If you are worried about the performance of the GFX card you mentioned. Trust me there will be no compromise in performance what so ever.

Maybe this link will help:

http://www.hardwarecanucks.com/forum/hardware-canucks-reviews/49646-amd-radeon-hd-7970-3gb-review-21... AMD Radeon HD 7970 3GB Review - Page 21

PS If you are going to buy a new GFX card I strongly advise you to buy the Nvidia 680 or the 670 "if you are on a budget". You spent a good amount on your CPU, I don't know about your other configs; so you might go ahead with a good compatible GPU.

Word of advice don't' go for the ASUS cards as there are some incompatibility when it comes to the BIOS of the Intel manufactered X79 boards & the BIOS of the NEW ASUS GFX cards

KNoro
New Contributor I
272 Views

My question(problem) is simple.Does the DX79TO support PCIE 3.0 or does it not.

If it does not then why does the packaging say that it will.

If Nvidia can force it to work with SB-E why can't intel issue a bios update that enables it.

This is a high end Cpu.I think people who have purchased the components deserve to enjoy the benefits of an official fix.

Miguel_C_Old
Employee
272 Views

Hello Warpspeed,

We escalated the case to our engineers department. I would have an update very soon.

KNoro
New Contributor I
272 Views

Thank Mike_Intel for a positive reply.I hope this can be natively enabled since it obviously can be forced.

Please keep the thread updated so we know what kind of work is being done with regards to this problem.

Thanks again.

ZAgha
New Contributor II
272 Views

@warpspeed

If they really gave us the option so we can use the PCIE 3.0 like other board manufacturers are doing then you deserve a reward.

For example on Asus boards you have the option to enable the PCIE 3.0 in the BIOS. I hope Intel will do this as well.

Not to mention we were promised a video BIOS as well. However, if they give us either one you deserve a reward warpspeed.

Btw, have you made up your mind about which GFX card you wanna get?

272 Views

Hi,

please refer the link for tested peripherals. http://www.intel.com/support/motherboards/desktop/dx79to/sb/CS-032974.htm http://www.intel.com/support/motherboards/desktop/dx79to/sb/CS-032974.htm

Graphics cardsATI*PCIEx16 VGAEAH4650H/DIV/1G/GB/ODM R1.00ATIPCIEx16 VGAEAH4850/2D/1G/CM/HP R1.00 ATIPCI VGARAGEXLS rev:1.03EVGA*PCIEx16 VGAE-GEFORCE 9800GTX 512M DDR3 MSI*PCIEx16 VGAGFX D10M2 TOPI LP 1GB/KIT 602-V191-02S/533126MSIPCIEx16 VGAEN9600GT 512MNvidia*PCIEx16 VGAGFX GT330 2GB ATX-HYNIX 288-30N58-110AC/VGNVidiaPCIEx16 VGAGTS250/2D/1G R1.02 NVidiaPCIEx1 VGA8400GSPowercolor*PCIEx16 VGAHD4850SamsungPCIEx16 VGAGFX GT340 1GB ATX-SAMSUNG 288-1N143-110AC/VG

 

Thanks,

- Ravi

KNoro
New Contributor I
272 Views

Not doing this for a reward.I have been using Intel components for quite a while now and they have always been reliable and the new extreme range has some great features although not on the same level as other board manufacturers it is more reliable.I just think people who have gone with Intel boards deserve to milk the full potential of these boards.

I would mostly be going with the Radeon card because of its wider memory interface.Trying to decide between a Radeon and a Quadro now.The pro series are more suited to my needs but they are too expensive.Trying to look for used ones.

KNoro
New Contributor I
272 Views

By Video Bios do you mean UEFI bios? Like the one Asus has?

According to the Motherboard Packaging this board is supposed to feature Advanced UEFI Bios.All I can see is the old BIOS.I cant see any mention of UEFI in the bios either.

Asus UEFI which has an advanced GUI etc and you can see UEFI plastered all over the BIOS.Another instance of Intel short changing us, isn't it.

ZAgha
New Contributor II
272 Views

No I meant a Visual BIOS e.g. http://www.intel.com/content/www/us/en/motherboards/desktop-motherboards/desktop-boards-software.htm... Intel® Desktop Boards Software

UEFI is to support drives of 2TB & up. Enabling the UEFI in the Intel X79 boards does nothing more. Unlike the BIOS in Gigabyte & Asus

Not to mention that when you enable UEFI the OS gets installed in a different way.

KNoro
New Contributor I
125 Views

If am not mistaken UEFI is the visual BIOS.UEFI does lot more than support 2TB+ drives.

According to Intel the X79 is supposed to support the visual bios aka UEFI.

I can't see it anywhere.Have you started a discussion about this?If not you should.Please send me the link I will join the discussion too.

BTW Mike_Intel whats the latest update on the PCIE 3.0 issue?

KNoro
New Contributor I
125 Views

Hi Mike,

Any updates regarding the situation?

Thanks

ZAgha
New Contributor II
125 Views

@warpspeed

The UEFI mode is on the BOOT tab in the BIOS where you can choose which hard drives you want to boot first. Scrool down a bit & you'll find. On other MBs manufactureres if you turn on the UEFI a somehow like a video bios will be shown but, not in out case "the ones who own intel MBs". I think Intel makes an effort to have their MBs so basic 'aka lame'.

As for the PCIE 3.0 don't expect it to be up anytime soon.

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