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Does my GIGABYTE mobo support SATA 3?
I've googled and have read the owners manual but I still need to know
if my Gigabyte GA-880GM-UD2H (rev. 1.4) supports SATA 3 drives. Also I have a question. I have some SATA drives already hooked up but at different SATA's (e.g. one drive is a SATA1 and another is SATA2). Can GA-880GM-UD2H (rev. 1.4) run SATA drives @ independent speeds or will SATA1 drag down SATA2' performances? TIA! |
#2
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Does my GIGABYTE mobo support SATA 3?
No it does not. Only SATA 3GB/
On 6/2/2011 7:59 PM, Bob Smith wrote: I've googled and have read the owners manual but I still need to know if my Gigabyte GA-880GM-UD2H (rev. 1.4) supports SATA 3 drives. Also I have a question. I have some SATA drives already hooked up but at different SATA's (e.g. one drive is a SATA1 and another is SATA2). Can GA-880GM-UD2H (rev. 1.4) run SATA drives @ independent speeds or will SATA1 drag down SATA2' performances? TIA! |
#3
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Does my GIGABYTE mobo support SATA 3?
Bob Smith wrote:
I've googled and have read the owners manual but I still need to know if my Gigabyte GA-880GM-UD2H (rev. 1.4) supports SATA 3 drives. Also I have a question. I have some SATA drives already hooked up but at different SATA's (e.g. one drive is a SATA1 and another is SATA2). Can GA-880GM-UD2H (rev. 1.4) run SATA drives @ independent speeds or will SATA1 drag down SATA2' performances? TIA! SATA is designed to be backward compatible. New disks, can work with old hardware. A SATA III disk supports 1.5Gbit/sec, 3.0Gbit/sec, 6.0Gbit/sec. A SATA II motherboard, supports 1.5Gbit/sec and 3.0Gbit/sec. When those two are connected together, the negotiated speed is 3.0Gbit/sec. Naturally, there are exceptions (and bugs) out there, but few enough not to worry about. 1) VIA chipsets may require the user to insert the "Force 150" jumper, to get the disk to work. The VT 8237S Southbridge, was the first VIA chip I've heard of, that had that bug fixed. One other VIA chip, used on add-in cards, has also been fixed. 2) Some motherboards equipped with SIL3112 (1.5Gbit/sec only) SATA ports, would freeze if a 1TB or larger disk was connected. This was a BIOS code bug - in many cases the motherboard was too old, to get a BIOS update to fix it. Bugs are constantly being discovered, even on some brand new high end gear. While the intention is to support backward compatibility, there doesn't seem to be enough of a program in place to *test* that everyone plays by the rules. I'm still seeing reports of things, that I can't explain :-( ******* SATA ports are independent of one another, so one can run 1.5Gbit/sec and another 6.0Gbit/sec, with no "drag down" effect. When you look in the BIOS screen, you may see references to "Master" and "Slave". Or to "Ultra100" or "Ultra133". These are naming artifacts for when the hardware emulates older disk technology. If in Windows, you see a claim the disk is in "Ultra100" mode, you can disprove that, by using the free version of HDTune, and finding the actual transfer bandwidth number is above 100MB/sec. That proves a reference to Ultra100 is bogus. The "burst" transfer rate, gives you an idea how fast the cable can really run. The graphical curve, shows the limit imposed by the media (platters and heads). http://www.hdtune.com/files/hdtune_255.exe For example, my 3.0Gbit/sec (300MB/sec) disk and motherboard port, support burst transfers at higher than 133MB/sec (which is the limit of an IDE cable using the old "Ultra" transfer modes). In this example, I compare two benchmarking utilities, and they give different answers. But at least the answers are higher than 133MB/sec, which is what I wanted to see. The "burst" tells you something about the cable and port, while the "graph" tells you how much the platters support (not quite as much). Notice that in no case, will you be seeing exactly "300.0", as that can't happen (packet overhead). http://img829.imageshack.us/img829/8...scomposite.gif If I were to grab a 6.0Gbit/sec disk and connect it to my motherboard, those results wouldn't change one bit... Paul |
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