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Discussion Starter · #1 ·
Hello everyone how is it going
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So hypersli allows SLI on boards which don't have SLI feature. My board is Gigabyte Z77-D3H. The second PCIE is [email protected] I currently have a Galaxy GTX 660 Ti 2 GB GC. If I ever decide to get another one down the road to SLI it with my main one, will the performance hit be significant from having 2x PCIe 3.0 @ x8?
Thanks in advance.
 

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No good, that's not recommended to run a gpu off the southbridge while the other one is run off the cpu.
 

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Discussion Starter · #3 ·
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Originally Posted by tsm106 View Post

No good, that's not recommended to run a gpu off the southbridge while the other one is run off the cpu.
Thanks for the reply but can you please elaborate, because I don't think I understood much xD. Excuse my ignorance
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Quote:
Originally Posted by Skorpian View Post

Quote:
Originally Posted by tsm106 View Post

No good, that's not recommended to run a gpu off the southbridge while the other one is run off the cpu.
Thanks for the reply but can you please elaborate, because I don't think I understood much xD. Excuse my ignorance
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Intel cpus have the pcie bus attached directly to the cpu. You board doesn't have pcie switches which is why the 2nd slot is locked at x4. It is getting that x4 from the chipset and not from the cpu. That x4 then is shared with your accessories usb/sata, and so on. This is why it's terribad to use gpus in x4 slots cuz they almost always are connected differently from the main pcie slot/s which are directly connected to the cpu. The speed/latency differences will seriously impede performance.
 

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Discussion Starter · #5 ·
Quote:
Originally Posted by tsm106 View Post

Intel cpus have the pcie bus attached directly to the cpu. You board doesn't have pcie switches which is why the 2nd slot is locked at x4. It is getting that x4 from the chipset and not from the cpu. That x4 then is shared with your accessories usb/sata, and so on. This is why it's terribad to use gpus in x4 slots cuz they almost always are connected differently from the main pcie slot/s which are directly connected to the cpu. The speed/latency differences will seriously impede performance.
Ah, well okay. Now I regret not paying the small price difference and getting the Z77X-UD3H instead
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