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Question about my set up... Involving Graphics Card, motherboard, i5-3570k, etc.

Last response: in Components
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June 6, 2013 8:10:52 AM

Okay. So basically the reason I'm here asking this is I want to know if my MSI 460 GTX is being bottlenecked by an 8 lane PCI 3.0 slot or not? Does it need to go up to 16 lanes PCI or is 8 lane fine? The card itself is rated for PCI E 2.0 x 16, but is running at 2.0 @ 8x according to GPU-Z

Here's my setup as verified by CPU-Z\GPU-Z

http://valid.canardpc.com/show_oc.php?id=2824559
http://www.techpowerup.com/gpuz/aepmc/
June 6, 2013 8:13:40 AM

SR-71 Blackbird said:
Better performance in the 16.


Good sir, replying so fast, are you stalking me? :p 

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June 6, 2013 8:19:58 AM

That's weird. Your mobo is 3.0x16 for a single card so why is your GPU reporting 2.0x8? Do you not have it in the "top" slot?
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June 6, 2013 8:23:43 AM

The card down clocks the pcie to 8x it's running 16x
try running a game and then check gpuz while the game is running.
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June 6, 2013 8:30:43 AM

Wait, better yet...

I have, it still clocks in at x8. Even while running a benchmark, like OCPT. (sp?)

J_E_D_70 said:
That's weird. Your mobo is 3.0x16 for a single card so why is your GPU reporting 2.0x8? Do you not have it in the "top" slot?



No, I don't have it in the top slot, it's in the middle at present. Do I need to disable some settings in the BIOS to get x16 out of my middle slot? :x


Sorry for all the edits and deletes, being a moderator on other forums, double posting annoys the piss out of me, so I do my best to not double post for the convenience of moderators on other forums. :) 

Update: The main reason I'm asking is I'm wanting to figure out if my PCIe 2.0 card meant for 16 lanes of PCIE 2.0 is saturating my 8 lanes of PCI e 3.0 bandwidth, and as a result needs to be moved up, or is it running fine in PCI x8 in a 3.0 slot?
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June 6, 2013 8:59:31 AM

You can look there but some force the number of lanes based on the slot with the top always being the 16 slot.
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June 6, 2013 9:00:17 AM

You can look there but some force the number of lanes based on the slot with the top always being the 16 slot.
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June 6, 2013 9:50:50 AM

J_E_D_70 said:
That's weird. Your mobo is 3.0x16 for a single card so why is your GPU reporting 2.0x8? Do you not have it in the "top" slot?


you need to have a PCI-E 3.0 gfx card for it to register, a 460 always will register as a 2.0 card. Also make sure that PCI E Link State Power management is off

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June 6, 2013 9:52:46 AM

I know that my card is a 2.0 card. What I'm wanting to know, is that as it is in a pci e 3.0 slot, are the 8 lanes of PCI 3 bandwidth it IS getting SATURATED from a by the card's 2.0 interface, and as such, should I move it up a slot, and get full pci e 3.0 x16
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June 6, 2013 10:15:21 AM

AlienIsGOD said:
J_E_D_70 said:
That's weird. Your mobo is 3.0x16 for a single card so why is your GPU reporting 2.0x8? Do you not have it in the "top" slot?


you need to have a PCI-E 3.0 gfx card for it to register, a 460 always will register as a 2.0 card. Also make sure that PCI E Link State Power management is off



I run my PC on High Performance power plan, where link state power management is off by default, and yes, I did check and it is off. :)  Good suggestion though.
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