Well, i did not expect those 4 ATA-Channels running in Ultra-DMA mode which are provided by the 2 additional controllers. Or to put it other way round: The second SSD (Crucial M4, s. first screenshot) is connected to (onboard shared) e-SATA (ASMedia) but only gives me ~ 150 MB/s instead of ~ 500 MB/s if it were running in SATA3 mode. Boot-ROM of ASMedia posts SATA3 mode for connected devices btw.
Optical drive is a Sony BD-Writer connected via USB (do not use it that often so that is fine). This is an own build sitting in a Fractal Design Define Mini and acts as desktop-PC + NAS for my LAN. More flexible than dedicated NAS-devices for my usage. Board used is this one:
What happens, when you replace the generic MS AHCI driver by the AHCI drivers, which are provided by the manufacturers of the related SATA Controllers (ASMedia and Marvell)? Another request: Please post the DeviceIDs of the ASMedia and Marvell SATA Controllers (right click > "Properties" > "Details" > "Property" > "HardwareIDs").
I already had ASMedia drivers installed (s. screenshot in first post), same problem.
For the Highpoint Rocket 620 (Marvell 9215) I already tried manual installation of 64-bit Win7 drivers (generic Marvell which are linked in this section of the forum; there are no dedicated drivers by Highpoint for this card) but windows refused these drivers.
Will come back this evening with the requested Device-IDs (I’m at work right now…)
@ mike49: Thanks for the DeviceIDs of both SATA AHCI Controllers. I don’t have any idea, why the Device Manager still shows 4 ATA Channels, although all IDE ATA/ATAPI Controllers are AHCI ones. Please check, if any drives are connected with them, and if yes, which ones.
I found a suitable, but old driver for this Marvell AHCI Controller. Which architecture (32/64bit) do you need?
Both controllers have classguid for ‘HDC 4D36E96A-E325-11CE-BFC1-08002BE10318 Hard drive controllers’ whereas drivers are for this guid: SCSIAdapter 4D36E97B-E325-11CE-BFC1-08002BE10318 SCSI and RAID controllers
I am quite sure that this is the reason, drivers do not install. I already tried changing classguid in windows registry, but no luck so far (just started…)
It’s 3 internal drives + (optional) 1 external drive (via e-SATA) and they all run in U-DMA Mode connected to those 4 ATA channels (see screenshot in first post)