I'm not saying you lie, just saying your benchmark does

Run Atto next time, it will give the right numbers.
As for draining, weird, almost like it's not turning off but stay in Sleep or standby, as those states may look like it's off but it's not.
How fast does your machine go from BIOS to Desktop?
Is it a minute of just a few seconds?
Just to show you why your benchmark is wrong, I did 2 benches with Atto, the left is a harddisk and the right is an SSD (desktop so faster then laptop).
Oh and, I included Atto as download to make you happy, some say it's old, but it's better then what you use.
As you can see, a single harddisk barely does 75MB/s, so a pair in Raid0 won't even come close to 150, 120~130 would be more right.
If you want speed, put an SSD in
