09-04-2009 08:49 AM - edited 09-06-2009 06:34 PM
System: A51 Tower (8138-D4U)
BIOS: 2FKT25A (date 2006-09-14)
I recently bought a 650GB SATA2 drive for the above system along with the following PCIe SATA2 controller card so as to maximize the new drive's throughput:
MassCool PCE-S401 (Silicon Image sil3531 chipset)
Unfortunately, I can't seem to get the system to boot off this card. Have tried the card in both PCIe slots (there are two; 1x & 16x) and pretty much all the BIOS startup boot options that seemed logical (to me anyways...). The drive works fine when connected directly to any of the on-board SATA1 ports and, booting off a live CD, I'm able to read & write to the new drive via the PCIe controller card.
Am I overlooking a BIOS option or is it simply missing?
A Lenovo Forum search turned up a "Petition for PCIe Boot Option" on the IdeaPad board; perhaps ThinkCentre systems should be added to the petition?
After looking up the specs for the earlier PCIe v1.x standard it seems this system would not benefit all that much from the SATA II controller card. Unless I calculated wrong, PCIe v1.x has a max. throughput of 250 MB/s which would be the limiting factor on a SATA-II controller (384 MB/s max.). The on-board SATA 1.x controllers have a max. throughput of 1.5 Gb/s (192 MB/s) so at most I'd see a 58 MB/s gain. I still think there ought to be a PCIe boot option (hint hint Lenovo) but I'm not so concerned about getting this controller card bootable. Another item for craigslist.org ...
04-08-2011 07:12 AM