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  Tom's Hardware Forums » Motherboards & Memory » Asus » P5K, hard drive performance spikes on SATA ports!?
 

P5K, hard drive performance spikes on SATA ports!?




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 Thread : P5K, hard drive performance spikes on SATA ports!?
 
Profile: stranger
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I've got an ASUS P5K which has the ICH9 chipset for 2 SATA ports, and and JMicron for the other 2 ports.

For some reason the drives on the ICH9 chipset have poor performance and I'm not sure why!

PORT 1, WD4000
http://img522.imageshack.us/img522/7708/hdtunebenchmarkwdcwd400bq6.th.png

PORT 4, Raptor 74gb
http://img508.imageshack.us/img508/267/hdtunebenchmarkwdcwd740ax1.th.png

Swapped the drives. Now I get this for my Raptor on port 1!!

http://img508.imageshack.us/img508/4705/hdtunebenchmarkwdcwd740pf6.th.png

Port 2 has a SATA CDROM, port 3 has nothing. Needless to say the 400gb drive now has a smooth graph.


Any ideas what's up? Is the ICH9 buggy or... what's going on?

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Profile: member
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I think AHCI is disabled on the Crippled ICH9 Base Model this means the ports work in IDE mode and don't support advanced features like NCQ. ICH9R or ICH9DO are superior controllers/Southbridges.


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