View Full Version : SATA MODE

05-21-08, 06:11 AM
I just found some interesting tweak in the bios but can't figure out what it does :))))

What's the difference between SATA AUTO access mode and SATA LARGE access mode?

05-21-08, 06:22 AM
I am taking a guss but i think they are reffering to cache used for the drive, kinda like RAID where you have 8,16,32,64,128kb cache. If them are the only options to have then even on auto it will be set to large.

05-21-08, 09:02 AM
my guess it has something to do with
LBA http://en.wikipedia.org/wiki/Logical_block_addressing
CHS http://en.wikipedia.org/wiki/Cylinder-head-sector

i was messing with bios once, and one of my HDD somehow switched from LBA to CHS

05-21-08, 09:06 AM
Thanks guys, i decided to do some bench tests with these two options one at the time. Large access mode was about 10MB/s slower than auto mode. But this was only in write speed. Burst speed was actually better with large access mode. By the way, what's burst speed?

05-21-08, 09:14 AM
burst speed is the speed from cache. so depending how large of cache your HDD has, it could be 2, 8, 16 or 32mb of data