
EPC621D8A
Quick Installation Guide
www.asrockrack.com
4
2
P/N: 15G065100000AK V1.0
Install the Server Board
Motherboard Layout
Jumper Cap On/O
The server board User's Manual is available for download from the ASRock Rack's ofcial website
at http://www.asrockrack.com.
Take note of the following precautions before you install server board components or change any
server board settings.
1. Unplug the power cord from the wall socket before touching any components.
2. To avoid damaging the server board’s components due to static electricity, NEVER place your
server board directly on the carpet or the like. Also remember to use a grounded wrist strap or
touch a safety grounded object before you handle the components.
3. Hold components by the edges and do not touch the ICs.
4. Whenever you uninstall any component, place it on a grounded anti-static pad or in the bag
that comes with the component.
5. When placing screws into the screw holes to secure the server board to the chassis, please do
not over-tighten the screws! Doing so may damage the server board.
1
1Insert the server board into the chassis.
2Affix t he screws clockwise into t he
mounting holes in all of the corners of
the server board.
Do not over-tighten the screws
When the jumper cap is placed on the pins, the
jumper is “Short”. If no jumper cap is placed on the
pins, the jumper is “Open”.
The illustration shows a 3-pin jumper whose pin1
and pin2 are “Short” when a jumper cap is placed on
these 2 pins.
I/O Panel
24.4cm (9.6 in)
30.5cm (12.0 in)
ATXPWR1
12 3
VGA1
COM1
USB 3.0
T: USB3_2
B: USB3_1
LAN1 LAN2
DDR4_F1 (64 bit, 288-pin module)
DDR4_E1 (64 bit, 288-pin module)
DDR4_D1 (64 bit, 288-pin module)
DDR4_D2 (64 bit, 288-pin module)
DDR4_A2 (64 bit, 288-pin module)
DDR4_A1 (64 bit, 288-pin module)
DDR4_B1 (64 bit, 288-pin module)
DDR4_C1 (64 bit, 288-pin module)
ATX12V1
Top:
LINE IN
Center:
FRONT
Bottom:
MIC IN
AUDIO1
PCIE3
PCIE5
PCIE6
PCIE4
1
PSU_SMB1
SATA_SGPIO1
1
SATA_SGPIO2
1
USB3_9
HD_AUDIO1
1
CMOS
Battery
RoHS
EPC621D8A
456 89 10 12
13
333435
14
15
16
3738394041 36
7
32
17
Intel
C621
BIOS
ROM
BMC
AEP_1
FRNT_FAN1
REAR_FAN1
USB 3.0
T: USB2
B: USB1
IPMI_LAN
LAN3 LAN4
UID1
PCIE2
PCIE1
FRNT_FAN3
HDLED RESET
PLED PWRBTN
PANEL1
1
1
AUX_PANEL1
11
1
TPM1
1
BMC_SMB_1
IPMB_1
CHASSIS_ID2
CHASSIS_ID1
1
SPEAKER
NMI_BTN1
1
1 1 1
FRNT_FAN2
CPU1_FAN1
1
FRONT_LED_LAN34
PECI1
T 1
R
USB3_7_8 USB3_5_6
1
SSATA_SGPIO1
SATA_0_3
SATA_4
(RED)
1
SATAPWR1
SSATA_4
SSATA_5
SSATA_2
SSATA_3
SSATA_0
SSATA_1
M2_1
NUT30NUT42NUT60
NUT80
M2_2
NUT30_2NUT42_2NUT60_2
NUT80_2
19
20
21
22
24
25
26
28
30
27
29
23
31
4243
44
45
1
PMBUS_SEL_DAT1
1 1
PMBUS_SEL_CLK1
CHASSIS_ID0
1
PMBUS_SEL_ALT1
1
11
46
AEP_2
1
18
CPU1
3
No. Description
1 ATX Power Connector (ATXPWR1)
2 Rear Fan Connector (REAR_FAN1)
3PSU SMBus (PSU_SMB1)
4 CPU PECI Jumper (PECI1)
5PMBUS Mode Jumper (PMBUS_SEL_ALT1)
6 Chassis ID0 Jumper (CHASSIS_ID0)
7 Chassis ID1 Jumper (CHASSIS_ID1)
8 Chassis ID2 Jumper (CHASSIS_ID2)
9PMBUS Mode Jumper (PMBUS_SEL_CLK1)
10 Non Maskable Interrupt Button (NMI_BTN1)
11 Front Fan Connector (FRNT_FAN1)
12 Support NVDIMM Jumer (AEP_1)
13 3 x 288-pin DDR4 DIMM Slots (DDR4_A1, DDR4_
B1, DDR4_C1, Blue)
14 1 x 288-pin DDR4 DIMM Slot (DDR4_A2, White)
15 1 x 288-pin DDR4 DIMM Slot (DDR4_D2, White)
16 3 x 288-pin DDR4 DIMM Slots (DDR4_D1, DDR4_
E1, DDR4_F1, Blue)
17 ATX 12V Power Connector (ATX12V1)
18 Support NVDIMM Jumer (AEP_2)
19 Front Fan Connector (FRNT_FAN2)
20 SATA SGPIO Connector (SSATA_SGPIO1)
21 SATA2 Connector (SSATA_1)
22 SATA2 Connector (SSATA_0)
23 SATA2 Connector (SSATA_3)
24 SATA2 Connector (SSATA_2)
25 SATA2 Connector (SSATA_5)
26 SATA2 Connector (SSATA_4)
27 SATA DOM Power Jumper (SATAPWR1)
28 MINI-SAS HD Connector (SATA_0_3)
29 SATA SGPIO Connector (SATA_SGPIO1)
30 SATA SGPIO Connector (SATA_SGPIO2)
31 Front Fan Connector (FRNT_FAN3)
32 Vertical Type A USB 3.0 (USB3_9)
33 SATA3 DOM Connector (SATA_4), Red
34 USB 3.0 Header (USB3_5_6)
35 USB 3.0 Header (USB3_7_8)
36 System Panel Header (PANEL1)
37 Intelligent Platform Management Bus header (IPMB_1)
38 BMC SMBus Header (BMC_SMB_1)
39 TPM Header (TPM1)
40 Auxiliary Panel Header (AUX_PANEL1)
41 Speaker Header (SPEAKER1)
42 ermal Sensor header (TR1)
43 Front Panel Audio Header (HD_AUDIO1)
44 CPU Fan Connector (CPU1_FAN1)
45 Front LAN LED Connector (FRONT_LED_LAN34)
46 PMBUS Mode Jumper (PMBUS_SEL_DAT1)
3
4
1
2
5
6
7
8
9 10 11
12
13
No. Description No. Description
1 LAN RJ-45 Port (IPMI_LAN) 8 LAN RJ-45 Port (LAN4)
2 USB 3.0 Ports (USB3_1_2) 9 UID Switch (UID1)
3VGA Port (VGA1) 10 USB 3.0 Ports (USB3_3_4)
4 Serial Port (COM1) 11 Line In (Light Blue)
5 LAN RJ-45 Port (LAN1) 12 Front Speaker (Lime)
6 LAN RJ-45 Port (LAN2) 13 Microphone (Pink)
7 LAN RJ-45 Port (LAN3)
*15G065100000AK*