• We’re currently investigating an issue related to the forum theme and styling that is impacting page layout and visual formatting. The problem has been identified, and we are actively working on a resolution. There is no impact to user data or functionality, this is strictly a front-end display issue. We’ll post an update once the fix has been deployed. Thanks for your patience while we get this sorted.

If I have a mobo with two PCIe x16 slots, does it matter which I use for my gfx card?

S

SuperMarioBro

Junior Member
Probably a silly question (I ask a lot of those), but I'm looking at this H67 board, and I'm wondering if I can put my 5770 into the slot of my choice in there. I suspect I might only be able to put it in the first (white) slot, but I'd like to put it in the red one to avoid my card blocking the PCIe x1 slot.

Thanks in advance for your advice.
 
The second slot is a electrically a PCIE 4x slot.

The video card MAY work (honestly I am not sure) but it will not work at full speed. The 5770 would need an 8x slot or higher to perform at maximum speed.

That said, you can use the 2nd PCIE 16x slot as a 1x slot. PCIE is flexible in that you can put a 16x video card into an electrically 8x slot or put a PCIE 1x card into a 16x slot and so forth.
 
BrianTho2010 said:
The second slot is a electrically a PCIE 4x slot.

The video card MAY work (honestly I am not sure) but it will not work at full speed. The 5770 would need an 8x slot or higher to perform at maximum speed.

That said, you can use the 2nd PCIE 16x slot as a 1x slot. PCIE is flexible in that you can put a 16x video card into an electrically 8x slot or put a PCIE 1x card into a 16x slot and so forth.
Click to expand...

Ah, thanks. That makes sense... I think I vaguely remember reading about that, too, now that you mention it.

So I won't be sacrificing anything by putting a 1x card into that 2nd 16x slot? Such a card should work normally in any PCIe slot?
 
actually with only a 5770 there will probably not be much performance loss. I would try both and then run some benchmarks.

I run one of my 460's in a 8x slot for better cooling and there is no performance loss at all from the 16x slot it was in before.
 
Why on earth do you want to put your card in a slower PCI-e slot? Your card requires for optimal performance PCI-E 2.0 at 16x, that's the first slot from the CPU, the white one. It will work on the red one but you will loose some performance. How much I don't really now.
 
The motherboard has a part in its manual where it tells you which slot you should use for the GFX card. I would listen to what it says. If I put my 5850 in the slot right below it would only run at 4x. You can put a 1x card in a 16x slot.
 
Right.
Q: "Which slot should I use for my GFX card?"
A: "The one the manual tells you to."
Simple. If in doubt, RTFM (and if the FM doesn't give you the answer, then post).
 
Well in this case, I don't have the FM yet because I don't have the board. 😉 And my decision to buy the board was contingent on the answer in that manual, hence why I posted... Although as I type this, I just realized I probably could have found the manual online had I thought of that. (I only tried a couple google searches, and searching this forum, and no luck.)

Crap Daddy said:
Why on earth do you want to put your card in a slower PCI-e slot? Your card requires for optimal performance PCI-E 2.0 at 16x, that's the first slot from the CPU, the white one. It will work on the red one but you will loose some performance. How much I don't really now.
Click to expand...
When asking this question, I wasn't aware that I would be sacrificing the performance of my card by putting it in that slot. Had I known that, I wouldn't have asked the question in the first place. It's not something I plan to do.

Anyways, thanks for the help, guys.
 
You must log in or register to reply here.

TRENDING THREADS

Back
Top