Originally posted by: Cheex
So...what is really causing the problem?
Is it a bus speed problem such as that of the PCI and PCIe bus speeds?
Also...If i use a controller won't i lose speed and performance?
Well, without digging through the pages related to what mobo you have, there are a couple of possibilities, neither of which has much relevance since you have already narrowed it down to : high fsb = sata goes flaky.
(1)- You have chipset-integrated Sata controller. (The P965 has a Sata component in it) At X FSB, it flakes out on you.
(2)- You have a discrete Sata controller chip on the mobo, attached to the PCI bus to interface with your chipset. (Not sure if this applies to you, but I have a PCI-resident Sata 3.0/NCQ on the mobo I have, the lowly MSI P965 Neo2) At X FSB, it flakes out on you.
As to the cause of the problem, if high FSB causes it to crap out, it means of course that the bus attached to the Sata controller (Chipset or discrete) is raising with your OC. Depending on your bios, you may be able to do something about it, but it really depends on the board. This is why locking PCI/PCIe/AGP/etc is so useful when overclocking by large margins.
As to the PCI-based Sata controller, I've actually been pleasantly surprised with their throughput. It won't be as fast as a chipset-integrated Sata 3.0/NCQ controller+drive, but it should be more than adequate. As a matter of fact, unless you have a really fast drive, you may not even notice the difference. And if you have a crappy choice of Sata controllers like I have (P965 integrated, or Jmicron NCQ) .. it may actually be an IMPROVEMENT
YMMV. But for such a cheap investment, it holds interesting potential. Some PCI cards are remarkably resilient to high FSBs.
One last thing, before you switch your boot drive to the PCI sata controller, be sure and install the drivers in Windows, or you will probably Bsod/Boot Cycle. That is, if you decide to give it a shot.
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