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SATA question

Last response: in Storage
June 13, 2011 3:34:18 PM

I have 8 SATA connections on my MB. 4 are 3gb/s and 4 are 1.5gb/s For some reason only 2 of the 4 slots on the 3gb/s are working correctly. I want to know if I put my 2 WD Raptor 70GB 10000 rpm drives on the 1/5 gb/s slots, am i going to loose performance? Can the WD drives be bottlenecked by the 1/5 gb/s interface?

More about : sata question

a c 277 G Storage
June 13, 2011 3:41:54 PM

Depends on the model (what capacity are the Raptors). The 600 GB versions, benchmarked in 2009, reached 130 MB/s, so they were getting close to the limit two years ago. It's an awfully close call. You may not notice any effect. Affect?

Can you put one of the Raptors on a working SATA II port and do a quick benchmark?

By the way, what is the motherboard, and do you want to try to get the other SATA II ports to work?
June 13, 2011 3:45:23 PM

It is an old system. The Raptors I bought in 05 and the motherboard is a NF4 SLI-DR Expert. Which benchmark do you suggest?
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a c 277 G Storage
June 13, 2011 3:48:55 PM

Gotta go look. I thought that I used Atto, but when I went to download it this weekend it was behind a membership wall. Anyone want to weigh in on this?

If you bought the Raptors in 2005, I don't think that any drives back then could saturate SATA I.
a c 415 G Storage
June 13, 2011 5:19:49 PM

It's only the more recent, highest-density drives that have transfer rates that exceed around 120+MByte/sec or so that are bottlenecked by SATA running at 1.5Gbit/sec. I can't imagine older 70GB Raptors being an issue. The Raptor's superior performance stems from their faster access times, not their transfer rates.