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Questions about GIGABYTE products => Motherboards with AMD processors => Topic started by: ninja 12 on October 06, 2011, 03:02:07 pm

Title: GA-MA780G-UD3H PCI Express slots
Post by: ninja 12 on October 06, 2011, 03:02:07 pm

Hi , I have a question about the PCIEX slots on my motherboard .

According to the webpage and manual for the GA-MA780G-UD3H :
"The PCIEX1_2 and PCIEX1_3 slots share bandwidth with the PCIEX4_1 slot.
When the PCIEX4_1 slot is populated with a x4 card, the PCIEX1_2 and PCIEX1_3 slots become unavailable."


The manual does not make clear what happens if the PCIEX4_1 slot is populated with a x1 card .

Can anybody tell me if PCIEX1_2 and PCIEX1_3 slots become unavailable if the PCIEX4_1 slot is populated with a x1 card ?

I started a support ticket asking Gigabyte a few days ago , but have not had a response yet ,

Thanks

Title: Re: GA-MA780G-UD3H PCI Express slots
Post by: absic on October 06, 2011, 04:16:21 pm

Hi there,

reading this:

Quote

(Note 4) The PCIEX1_2 and PCIEX1_3 slots share bandwidth with the PCIEX4_1 slot. When the PCIEX4_1 slot is populated with a x4 card, the PCIEX1_2 and PCIEX1_3 slots become unavailable.

from the Gigabyte spec's for your motherboard I would think that using a PCIex1 card wouldn't be a problem. The issue arises only because an X4 card would want all the bandwidth whereas using three X1 cards wouldn't.

Title: Re: GA-MA780G-UD3H PCI Express slots
Post by: ninja 12 on October 06, 2011, 04:45:52 pm

Quote from: absic on October 06, 2011, 04:16:21 pm

from the Gigabyte spec's for your motherboard I would think that using a PCIex1 card wouldn't be a problem. The issue arises only because an X4 card would want all the bandwidth whereas using three X1 cards wouldn't.

Hi ,
Thanks for the reply ,

So , because Gigabyte make no specific mention of x1 cards using all the available bandwidth it's safe to asume that it's ok ?

I'll be ordering a PCIex1 dual DVB-S2 in the next few days , and wanted to make sure it'll work .

Thanks .

Title: Re: GA-MA780G-UD3H PCI Express slots
Post by: absic on October 06, 2011, 04:53:57 pm

Hi again,

that's my understanding of the situation. If you like I can ask Gigabyte for confirmation of this but it might take a few days for them to get back to me and you will probably have an answer from Tech Support by then.  :-\

Title: Re: GA-MA780G-UD3H PCI Express slots
Post by: ninja 12 on October 06, 2011, 06:16:25 pm

That would be great , thanks .

I already have a support ticked started ( on Oct 3rd  ) but according to the webpage , it hasn't been read yet .

Title: Reply from Gigabyte
Post by: ninja 12 on October 11, 2011, 06:42:34 pm

I just recieved a reply from Gigabyte ,
I thought I'd share it in casse anybody else has the same question .

Reply from Gigabyte

Quote

If there is a PCIE X1 card in PCIEX4_1 , the PCIex1_2 and PCIex1_3 are still available .

@ absic ,
Thanks for your replies  ;D

Title: Re: GA-MA780G-UD3H PCI Express slots
Post by: absic on October 11, 2011, 06:45:01 pm

Hi again,

thanks for the update. I thought I was correct but it is nice to get confirmation of the situation.