Well I've got a mac 4.1 that i updated to 5.1 fitted a hex W3680 + 1333 memory, and thought SATA 3 would be nice and found this card which comes up in lion with native drivers and gives me SATA 3 and 400+ MBS read speeds!
Now Iam happy!
No, as it's only a 1x lane card.-There are two types of PCIe slots in the Mac Pros, 2 at 16X usually reserved for GPUs, and 2 other slots at 4X. Do we need to put the SATA3 card in a 16X slot to have the full speed?
No, as it's only a 1x lane card.
Couple of notes:
The card can be found here
and it works a treat, very fast with my vertex 3 SSD apps open in a blink of the eye
Of course it would work in a 4x or 16x lane slot.It runs fine in both X4 PCIE slots aswell as the 16X PCIE slot, this is with one SSD drive attached to the card, havnt got 2 SATA 3 drives to try. runs the same speed on the 4X as 16X
Sharkoon even offers a solution for six 2.5" drives in one 5.25" bay (also available for 4 drives). Admitted - cable routing would probably be more of a hassle there. But combined you could pack the MacPro to the limit:You could use this to save your sleds for 3.5" drives and increase overall drive capacity.
Of course it would work in a 4x or 16x lane slot.
The point was that it's a waste to use a 16x lane slot for a 1x lane card, so using a 4x lane slot is the way to go (as 4x is the smallest slot width offered in the MP).
And that there are limitations with this and similar SATA controller chips (1x PCIe gen 2.0 spec based controller = max throughput of 500MB/s). Now keep in mind that a single 6.0Gb/s SATA port can sustain ~540 - 550MB/s, so it's actually possible to throttle a 6.0Gb/s SSD on such a card, let alone running two of them.
The description for the ASM on amazon.fr says that it only has 2 ports, with dip switches to select internal/external.
this is correct, you can only run 2 drives off this card, 2 internal, or 2 external, or 1 internal 1 external.
To confirm you say you have booted off this card successfully? For how long?