First: HDD Bay» Click to show Spoiler - click again to hide... «
got 8 screw (4 on the bottom & 4 on the top), unscrew them
change the position of the hdd bay to side way (rotate 90° anti-clockwise)--> less air restriction
1 con if u this way:
every time wanna remove the hdd, u gotta unscrew the 8 screw first..
take the hdd bay out or rotate it to its original position
only by then u able to remove the hdd from it's bay
reason: the mobo blocking, not enough room to take out the hdd
that's why u need to rotate to its original position first, really hassle la
who cares, it's not like we gonna remove the hdd everyday
Second: PSU» Click to show Spoiler - click again to hide... «
change the psu the other way round la
let the psu exhaust all the hot air trap there
seriously, u don't need the fresh air intake for ur psu la
Third: Graphic Card Area» Click to show Spoiler - click again to hide... «
Intake Fan = Side fan
Exhaust Fan = Blow hole on top, either 1x120mm or 2x120mm, up to you
ur GC temp will drop drastically
Forth: Cable Managementthe excessive front i/o cable:
buy a cable tie + cable tie base
tie the excessive cable length on the case ceiling
the psu cable:
well, if u change the position of the psu, the cables will be at the down side right
do it like front i/o cable --> tie it to the case floor
if u let it hanging like that --> restrict air flow
mind answering me, what cooler u use for ur proc?
btw, i tried all the steps above in my V600
temp drop like

1. Got screw hdd bay ? did not see b4 this. thank dude. will change it
2. orait bro will rotate it around
3. yup thinking blow hole on top. BTW, right now side panel is exhaust fan. so better made it intake fan, right?
4. yup lian li already give me some cable tie, just want to get some idea from you guy first then will tie it when i finish what to do.
My proc use only stock heatsink only.
BTW, what about i change PSU to hdd bay are that good idea ? then put intake fan where psu position now.