Inside the Lian Li PC-B70 Full Tower Case - Continued
As I mentioned, there is a fan at the rear of the top mounted drive bays. Removing the four thumb screws, the finger guard can be released to allow access to clean the fans. With a bit more work on the inside, the cage can be fully removed and the PSU can be mounted here if that is the desired position for your build.
An interior view of the 5.25" bays shows Lian Li added a support between drives two and three. Looking closely at the bottom of these bays, you can see the 3.5" adapter that is pre-installed in the last bay. The wiring in the PC-B70 is tidy, so adding an optical drive in the top bay is no issue, as the wiring is well out of the way.
Once the rear panel is out of the way, we can get a look at where to hide and run the wiring, as well as getting a look on how the tray is held into place with the three screws at the top. The chassis wiring is pre-installed and ran cleanly down the front of the case. The I/O wiring runs down and into the wire managing organizer. There are various sized grooves to accommodate any size need.
To allow for the motherboard tray removal, first you have to unscrew these two thumb screws. Once that has been done, you just need to slide the tray left to allow the top screws to slip through the keyways. It's as simple as lifting it out of the chassis at that point, to allow for the motherboards installation outside the chassis so you can look for fit issues, or even testing new components prior to it all being in the case.
Back to another look at the fully accessible interior of the PC-B70 with the tray removed. There is plenty of room to move around and get your drives and PSU in place ready for the motherboard to be set in later.
Wiring from the front I/O panel is of average length, but are enough to reach where they need to plug in. These consist of an E-SATA, HD and AC'97 audio, two USB 2.0 connectors, and one IEEE 1394 connection.
The PC-B70 also has the standard chassis connections as well. These consist of the system power, system reset, HDD activity LED, and the system power LED connections. Just behind these are the 3-pin connections for the front two, 140mm fans.