SATA ULTRA DMA problem

I have 2 Seagate Barracuda SATA HD's running. 1 is an 80gb 7200rpm 8mb and the other is the 200gb 7200rpm 8mb buffer. The 80gb one runs perfectly at UDMA 6, the other one is capable of running at UDMA 6 but is set to UDMA 5.

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I have 2 Seagate Barracuda SATA HD's running. 1 is an 80gb 7200rpm 8mb and the other is the 200gb 7200rpm 8mb buffer. The 80gb one runs perfectly at UDMA 6, the other one is capable of running at UDMA 6 but is set to UDMA 5. It lets me change the settings then asks me to restart but when i come back after a reboot its still at UDMA 5. i dont have any settings in my BIOS for SATA drives (mobo: ASUS a7n8x-e deluxe). I tried setting it under DEVICE MANAGER and even tried the SATA program @ the ASUS website that runs under Windows and the same thing happens. Does anyone know why this is happenning? I was thinking that maybe only 1 drive is allowed to run at UDMA 6 because its taking up all the bandwith so the other has whatever is left. Any sugestions are welcomed, thanks

RaZoR

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just irgnore it ...
its a display error ...
an SATA disk cannot run @ level 5 since there is no level 5 in sata world ... but OK lets say it runs at 5 ...
you can ignore it, too

5 means 133MB/s - 6 150MB/s ...
no actual HDD will ever reach 133 ... not even 100
its only worth looking at when youhave connected 2 disks on PATA line since they count together but since SATA is single line only you will never have any disadvantage


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Mertsch: i think your right, i had a buddy do some tests (cause i am at work :knife: ) on his SATA drives which he happens to have the same problem, and the tests from SANDRA came up the same for both UDMA5 and UDMA6... thanks for the input


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what SATA chip is on ya board ?

ah the 3112 ... have you tried the sil control panel included in x.51 driver ???
its installed tocontrol pannel or just start the .cpl file included .. does this display the same ?


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i think its the 3112 rev 2... but if your talking about the SATARAID program with (the blue icon) it reads the same as windows... and i think it did add it to my control panel, but its call SILICON IMAGE ATA Properites, they alll read the same thing :x


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funny
I am sure they all do read out from the same place
but who cares :P


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My sata hdd ran in udma mode 5 for 9months till newer silicon drivers arrived, last 2 or 3 drivers for sata 3112 controler work fine and hdd is now udma mode 6, this is to cover your backside in burst rate esp if raid 0 where you will hit over 100MB sec easily.

You also get nice GUI in your control panle and similar in device manager, with flash bios etc, i think this is null setting though.