How to Replace CPU Fan for DiskStation DS411+II Revision 1.0 THIS DOCUMENT CONTAINS PROPRIETARY TECHNICAL INFORMATION WHICH IS THE PROPERTY OF SYNOLOGY INCORPORATED AND SHALL NOT BE DISCLOSED TO OTHERS IN WHOLE OR IN PART, REPRODUCED, COPIED, OR USED AS THE BASIS FOR DESIGN, MANUFACTURING, OR SALE OF APPARATUS WITHOUT WRITTEN PERMISSION OF SYNOLOGY INCORPORATED.
Table of Content 1. Introduction... 3 1.1 Applied Models & Required Components... 3 1.2 Required Tools... 3 2. Start to Replace... 4 2.1 Dismantle the defective fan module... 4 2.2 Install the replacement fan module... 15 Revision History Revision Number Date of Issue Summary of Change By v.1.0 2014/4/28 Initial version Dennis Tang Page 2 of 24
1. Introduction This SOP explains about the detailed steps for replacing CPU fan on Synology s DiskStation DS411+II product. 1.1 Applied Models & Required Components Fan module of the DiskStation model for replacing: Required Module CPU Fan 40*40*10_1 Item Code Description Applied Model 3PIN DC12V JST W/ 100mm 13-060703048 5000RPM EC4010M12ER DS411+II PB_FREE CPU Fan 40*40*10_1 1.2 Required Tools Screw Driver + Type: Suggested Bit Size PH#2 Note: If an automatic screwdriver is used, set its torque reading to be 4.5 (+/-0.2) kg/cmf in advance. Screw Driver - Type: Suggested a smaller bit size Anti-static / Cotton Gloves Page 3 of 24
2. Start to Replace 2.1 Dismantle the defective fan module 2.1.1 Release the four (4) hand screws on the rear panel (Marked by the red circles). (Fig. 1) Fan #1 Fan #2 Fig. 1 2.1.2 Flip down the rear panel to open it. (Fig. 2) Fig. 2 Page 4 of 24
2.1.3 Remove all the disk trays from the HDD chassis. (Fig. 3) Disk Tray Fig. 3 2.1.4 Draw backwards then move up the enclosure cover to remove it. (Fig. 4) Enclosure Cover - Top Fig. 4 Page 5 of 24
Fig. 5 shows the status after the enclosure cover is removed. Fig. 5 2.1.5 Unplug the two (2) fan cable connectors (Marked by the red rectangle). (Fig. 6) Fan #2 Fan #1 Fan Cable Connector #2 Fan Cable Connector #1 - Interior Fig. 6 Page 6 of 24
2.1.6 Release the two (2) screws on each side of the enclosure interior (Marked by the red circles) which fix the bottom cover. (Fig. 7 for the right and Fig. 8 the left side) Fig. 7 Top View, Right Side Fig. 8 Top View, Left Side 2.1.7 Release the two (2) screws on the rear panel (Marked by the red circles). (Fig. 9) Fan #1 Fan #2 Fig. 9 Page 7 of 24
2.1.8 Remove the bottom cover. (Fig. 10) Bottom Cover Bottom Side Fig. 10 2.1.9 Remove the rear panel. (Fig. 11) Bottom Side Fig. 11 Page 8 of 24
2.1.10 Release the two (2) screws on each side of the front panel interior (Marked by the red circles). (Fig. 12 for the right side and Fig. 13 the left side) Top Side Top Side Fig. 12 Right Side Fig. 13 Left Side 2.1.11 Release the tenon on each side of the front panel interior (Marked by the red circles). Then push the front panel outwards to remove it from the enclosure. (Fig. 14 for the right side and Fig. 15 the left side) Top Side Top Side Tenon Tenon Fig. 14 Right Side Fig. 15 Left Side Page 9 of 24
2.1.12 Use a small flat tool (e.g. A screwdriver of - type) to slightly bend outwards the tenon on each side of the front panel interior for releasing. (Marked by the red rectangle in Fig. 16, showing the left side). Then push the front panel outwards to release it from the enclosure. Do in the same way for the right side. (Fig. 17) Front Panel Top Side Tenon HDD Chassis Small Flat Tool (Screwdriver - type) Fig. 16 Top View, Left Side Tenon Fig. 17 Top View, Right Side Page 10 of 24
2.1.13 Remove the front panel from the enclosure. (Fig. 18) Enclosure Fig. 18 2.1.14 Unplug the LED board cable connector (Marked by the red rectangle) from the LED board. (Fig. 19) LED Board Cable Connector LED Board - Interior Fig. 19 Page 11 of 24
2.1.15 Release the four (4) screws (Marked by the red circles). (Fig. 20) LED Cable Fig. 20 Top View 2.1.16 Then remove the motherboard from the bottom of the enclosure. (Fig. 21) Bottom Side LED Board Cable Fig. 21 Enclosure Front Side Page 12 of 24
Fig. 22 shows the status after the motherboard is removed. Fig. 22 2.1.17 Release the four (4) screws on the CPU fan (Marked by the red circles). (Fig. 23) RAM Module Defective CPU Fan LED Cable Fig. 23 Page 13 of 24
2.1.18 Remove the defective CPU fan module and its cable connector (Marked by the red circles) from the motherboard. (Fig. 24) Defective CPU Fan CPU Heat-sink Fig. 24 Fig. 25 shows the status after the defective CPU fan is removed. Defective CPU Fan Fig. 25 Page 14 of 24
2.2 Install the replacement fan module 2.2.1 Put the replacement CPU fan and its cable connector to the same locations as the defective one on the motherboard. (Fig. 26) Replacement CPU Fan CPU Heat-sink Fig. 26 2.2.2 Fix the four (4) screws (Marked by the red circles) to secure the replacement CPU fan. (Fig. 27) RAM Module Defective CPU Fan LED Cable Fig. 27 Page 15 of 24
2.2.3 To restore the motherboard into the enclosure, there are two (2) locations as follow for joining the two sides: Side (Fig. 28) Enclosure Side (Fig. 29) #1 PCI Express connector #2 Bonding finger of the HDD backplane RAM Module #1 Replacement CPU Fan Fig. 28 Side Join the motherboard and the enclosure together with the bonding finger of the HDD backplane (#2) inserted into the PCI Express connector (#1) properly. (Fig. 29) Bottom Side #1 #2 LED Board Cable Enclosure Front Side Fig. 29 Page 16 of 24
2.2.4 Fix the four (4) screws (Marked by the red circles) to secure the motherboard. (Fig. 30) LED Cable Fig. 30 Top View 2.2.5 Plug back the LED board cable connector to its original location (Marked by the red rectangle) on the interior of the front panel. (Fig. 31) LED Board Cable Connector LED Board - Interior Fig. 31 Page 17 of 24
2.2.6 To restore the front panel on the enclosure, the four (4) tenons and openings for joining the two sides are as follow. (Fig. 32, 33 and 34) Side (Fig. 32) Enclosure Side (Fig. 33 and 34) #5 Tenon #6 Opening #7 Tenon #8 Opening #9 Tenon #10 Opening #11 Tenon #12 Opening Tenon #5 Tenon #9 Tenon #7 - Interior Tenon #11 Fig. 32 Font Panel Side Opening #6 Opening #10 Opening #8 Opening #12 Fig. 33 Right, Enclosure Side Fig. 34 Left, Enclosure Side Page 18 of 24
Restore the front panel to its original location on the enclosure with the abovementioned tenons and openings joined properly. (Fig. 35) Enclosure Fig. 35 2.2.7 Fix the two (2) screws on each side of the front panel interior (Marked by the red circles). (Fig. 36 for the right side and Fig. 37 the left side) Top Side Top Side Fig. 36 Right Side Fig. 37 Left Side Page 19 of 24
2.2.8 Restore the rear panel to its original location. (Fig. 38) Bottom Side Fig. 38 2.2.9 Restore the bottom cover to its original location. (Fig. 39) Bottom Cover Bottom Side Fig. 39 Page 20 of 24
2.2.10 Fix the two (2) screws on the rear panel (Marked by the red circles). (Fig. 40) Fan #1 Fan #2 Fig. 40 2.2.11 Fix the two (2) screws on each side of the enclosure interior (Marked by the red circles) to secure the bottom cover. (Fig. 41 for the right and Fig. 42 the left side) Fig. 41 Right Side Fig. 42 Left Side Page 21 of 24
2.2.12 Plug back the two (2) fan cable connectors (Marked by the red rectangle). (Fig. 43) Fan #2 Fan #1 Fan Cable Connector #2 Fan Cable Connector #1 - Interior Fig. 43 2.2.13 Restore the enclosure cover to its original location. (Fig. 44) Enclosure Cover - Top Fig. 44 Page 22 of 24
2.2.14 Restore all the disk trays into the HDD chassis. (Fig. 45) Disk Tray Fig. 45 2.2.15 Flip up the rear panel to close it. (Fig. 46) Fig. 46 Page 23 of 24
2.2.16 Fix the four (4) hand screws on the rear panel (Marked by the red circles) to secure the rear panel. (Fig. 47) Fan #1 Fan #2 Fig. 47 2.3 The replacing task is completed. Page 24 of 24