Gigabyte hit back at MSI’s “Fake PCI-E Gen3” claims



/ 6 years ago

Gigabyte were labelled as producing fake PCI-E Gen 3 motherboards a while back Micro Star International as they accused Gigabyte’s motherboards of lacking the required standard of PCI-E Gen 3 switches which allow for Gen 3 to be enabled on the motherboards. However, Gigabyte has produced a presentation which completely invalidates most of MSI’s claim. Gigabyte take the stance that since the first PCI-E 16X Gen 3 lane is controlled directly by the Ivy Bridge processor there no switching circuitry between the CPU’s PCI-E root-complex and the slots. However, in the case of when a dual PCI-E 3.0 set up is used there is a need for a PCI-E 3.0 Gen 3 switch otherwise the slots will not function at PCI-E Gen 3 speeds.

Gigabyte offers 3 different scenarios that its boards use:

The first is when the motherboard runs only a single PCI-E 16X lane and in this case you will get the full PCI-E Gen 3 16X bandwidth directly from the CPU:

The second is with dual Gen 3 16X PCI-E Lanes and with a Gen 3 switch, this shows how you get 16X bandwidth with a single card configuration or 8X/8X with a dual card configuration but note a switch is needed for this.

The third and final scenario is with dual or more PCI-E 16X lanes in which Gen 2 switches are fitted only. However, the claim they make here is that you get PCI-E Gen 3 8X to the first slot when running a single card, but PCI-E Gen 3 8X is equivalent to 16X in Gen 2, so maybe MSI have a point here.

 

The only thing that now remains unanswered is whether MSI’s other claim is true. which is that Gigabyte’s Capacitors, resistors and BIOS aren’t up to PCI-E Gen 3 standard as MSI pointed out in its previous presentation. Watch this space the fight certainly isn’t over yet.

Source



Speak Your Mind

Tell us what you're thinking...
and oh, if you want a pic to show with your comment, go get a gravatar!