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GA-P35-DS4 & NCQ on SATA


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  • 1 month later...

NCQ is working on my ds4, but I didn't do anything special-- perhaps it is because I'm using an HD pretty much the same as in the Mac Pro -- "Seagate ST3160811AS Barracuda 7200.9 160GB 8MB SATA II" ... even though in system profiler it lists vendor as unknown. Using EFI v8 using GPT partitioning with vanilla kernel and pc_efi's AppleSMBIOS. dsmos.kext and AppleACPI from brazilmac.


system profiler info:



Unknown AHCI Standard Controller:


Vendor: Unknown

Product: AHCI Standard Controller

Speed: 3.0 Gigabit

Description: AHCI Version 1.20 Supported




Capacity: 149.05 GB

Model: ST3160811AS

Revision: 3.AAE

Serial Number:[withheld]

Native Command Queuing: Yes

Queue Depth: 32

Removable Media: Yes

Detachable Drive: No

BSD Name: disk0

Mac OS 9 Drivers: No

Partition Map Type: GPT (GUID Partition Table)

S.M.A.R.T. status: Verified


Macintosh HD:

Capacity: 148.73 GB

Available: 141.74 GB

Writable: Yes

File System: Journaled HFS+

BSD Name: disk0s2

Mount Point: /



but Xbench isn't great or anything:



Disk Test 53.33

Sequential 106.74

Uncached Write 76.65 47.06 MB/sec [4K blocks]

Uncached Write 117.73 66.61 MB/sec [256K blocks]

Uncached Read 113.71 33.28 MB/sec [4K blocks]

Uncached Read 140.07 70.40 MB/sec [256K blocks]

Random 35.54

Uncached Write 12.25 1.30 MB/sec [4K blocks]

Uncached Write 76.48 24.48 MB/sec [256K blocks]

Uncached Read 92.78 0.66 MB/sec [4K blocks]

Uncached Read 141.91 26.33 MB/sec [256K blocks]

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On Leopard (iATKOS 1.0i) NCQ and S3 Sleep are working for me.


My config:

Gigabyte GA-P35-DS4 rev. 2.0 - BIOS F9 - Internal SATA as AHCI - JMicron Disabled

WD5000AAKS - Connected to orange port 0 - Discovered by OS X correctly

8600GT 256MB VRAM

2 GB DDR2 PC2-6400

Core 2 Quad Q6600


Only problem i have is system hanging on MACH_REBOOT while rebooting, so i need to reset my computer...

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