Hi there!I've bought a new PC recently and wanted to use my "old" Plextor drives (716 and Premium) with that new PC. The mainboard (Asus P6T Deluxe V2) only has one IDE port (Marvell chipset), so I have to use that with these IDE drives. Everything works fine, but EAC: If I try to rip a CD, one core of the CPU gets a 100% usage (should be not a problem) and the whole system is stuttering (e.g. music playback is ridiculously slowed down - sounds like setting playback speed to maybe 20%; also the effects of Windows while minimizing/maximizing windows are not running smooth anymore).This only happens when using the IDE drives (with a SATA drive, there's no problem) and only with EAC (ripping with dbpoweramp, music or video playback, copying files, etc. from the IDE drives works perfectly well).I've already played around with some EAC settings (especially with the interface option), but nothing seems to help.Next thing I've had a look at was the DMA mode of the IDE drives, which were enabled. Also no problems with IRQs (there's only a USB port with the same interrupt, but even when disabling it, same problem occurs).Latest Intel chipset drives are also installed.Any clue what else could cause this problem?
Yes, your old drives are probably generating a lot of I/O errors, possibly at the IDE interface level.
ripping with dbpoweramp, music or video playback, copying files, etc. from the IDE drives works perfectly well
Try this tool and see if the deferred procedure calls would cause high latencies.http://www.thesycon.de/eng/latency_check.shtml
If there were many I/O errors, would the drive not revert out of DMA mode?
Alright I'm home and I was able to check the BIOS for the setting I had to change. In my case I have a ASUS P5k Deluxe with a J-Micron 363 controller that handles the IDE. In the BIOS, I changed:
I have this problem under Win7RC1 also with an old 5224 Plextor. Try changing the read command to MMC1 under drive options in EAC. Don't know what disadvantages it has but it works.
One question stays: Is UDMA 2 mode the maximum of a Plextor Premium drive?