1. You need whitelist to use Dell DW1510
2. Sure you can update to newer Clover but this won't fix the sound issue. Just folow Espamacs and tlucks instructions.
@tluck - by regressing I mean reverting to method used in Clover r1059 and earlier. Cause I have observed that in r1060 and newer my CPU is reported as 2.51GHz (out of sync) causing AppleHDA to behave strange - the sound after one second was flaky (rendering strange noise). I have never observed the actual clock time (there is no space for time within your mind ) - but I guess this will also be out of sync. Just try my custom build and report if you still need to define the CPU parameters in config.plist
To all: I recommend using OEM folder when mastering your Clover config.plist, dsdt.aml, kexts whatever. This way you always have a minimal config that will let you boot to the system and fix things you have messed up in the OEM setup specific for your model. In that case you only need to boot to the EFI Shell and rename your OEM folder to someting else, for example:
EFI\OEM\4180A32 to EFI\OEM\4180A32-bador in new world Clover
EFI\CLOVER\OEM\4180A32 to EFI\CLOVER\OEM\4180A32-badThis way Clover will ignore your OEM folder and boot from the main/default config.