Netstor NA255A Manuale utente

1. Unpack the NA255A
2. Expansion Chassis Description
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3
5. Verification 14
4. Powering On/Off NA255A 13
3
2.1 Panel Layout
5
2.2 Slot Board Layout
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2.3 Switches Function and Location on
NA255A Slot Board
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2.4 LED Status on Host card and Target card
3. Install Graphics/PCIe Cards in NA255A 8
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3.1 Procedure for Card Installation
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3.2 Cooling Fan Speed Adjustment
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5.1 Windows Operating System
16
5.2 macOS / tower Mac Pro

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1. Unpack the NA255A
2. Expansion Chassis Description
2.1 Panel Layout
The box contains the following items:
。Netstor NA255A
。PCIe 3.0 ×16 host card
。Two PCIe 3.0 ×8 1.5-meter cables
。Power cord
1. Power on/off LED button
。Blue - power on
Note: when at powering on/off NA255A manually mode, to power
on/off NA255A, hold the power LED button for two seconds
until the LED button shows blue light or off.
4. Temperature LED
。Green – normal
。Red – over temperature (above 55℃)
3. Fan LED
。Green – normal
。Red – fan failure
(low frequency of RPM or stop)
2. Buzzer mute button

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7. Link status LED
。PCIe Gen3 : solid green light
。PCIe Gen2 : fast blinking green light
(2 flashes/second)
。PCIe Gen1 : slow blinking green light
(1 flash/second)
9. PCIe slots
10. Thumbscrews to loosen/
tighten the side door
8. Two external PCIe 3.0 ×8 connectors for host connection
。One port is marked with ×8 for lane 1~8; the other port is marked
with ×16 for lane 9~16. Make straight cable connection between
target card in NA255A and host card in computer with mark ×8
to ×8, and ×16 to ×16. Do NOT make cross cable connection.
5. PSU power switch
6. Power receptacle
X8X16 X8
X16
X8X16 X8
X16

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2.2 Slot Board Layout
1. Slot 1 : PCIe ×16 connector (×16 signal)
Target card already installed in it
2. Slot 2 : PCIe ×16 connector (×8 signal)
3. Slot 3 : PCIe ×16 connector (×8 signal)
4. Slot 4 : PCIe ×16 connector (×8 signal)
5. Slot 5 : PCIe ×16 connector (×8 signal)
6. 4×6+2 pin PCIe power cables & 4×6-pin PCIe power cables for cards

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FAN SPEED HIGH
FAN SPEED LOW
NP952AG3 Rev.A0
SW1
。To set NA255A as Gen3 mode, turn switch to left position. (default)
。To set NA255A power on/off manually, turn SW2-1 switch to OFF position.
SW2-1
。To set NA255A power on/off by host computer, turn SW2-1 switch to ON position. (default)
。To set NA255A power on/off manually, turn SW2-1 switch to OFF position.
SW2-2
。To set 3.5 x 3.5 cm cooling fan speed on backplane to high,
turn SW2-2 switch to ON position.
。To set 3.5 x 3.5 cm cooling fan speed on backplane to low,
turn SW2-2 switch to OFF position. (default)
2.3 Switches Function and Location on NA255A Slot Board
Gen3
Gen2
※ SW2-1 and SW2-2 switches are near slot 5 on backplane.
3.5 x 3.5 cm
Go Back to 3.
Go Back to 4.

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。LED2 ~ LED6 show solid green light: PCIe x16 connection between computer and NA255A is linked
。LED3 ~ LED6 show solid green light: PCIe x8 connection between computer and NA255A is linked
。LED2 ~ LED6 no light: PCIe connection between computer and NA255A is NOT linked
2.4 LED Status on Host card and Target card
136 mm
87 mm

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3. Install Graphics/PCIe Cards in NA255A
3.1 Procedure for Card Installation
Before card installation in NA255A, read through the following notice and instructions.
The computer’s PCIe slot to be linked with NA255A must be identified first for the correct
connection between host computer and NA255A.
Two conditions A and B for connection are listed below:
Prior to card installation, make sure NA255A is disconnected from power source to prevent
electric shock or damage to graphics/PCIe card.
A. If computer’s PCIe slot to be linked with NA255A is PCIe 3.0 ×16 or PCIe 3.0 x8, you don’t
need to make any change to the switch setting on NA255A slot board because NA255A is
already set to work with computer’s PCIe 3.0 x16/x8 slot by default.
B. If computer’s PCIe slot to be linked with NA255A is PCIe 2.0 ×16 or PCIe 2.0 x8, you will
need to set NA255A’s slot board to PCIe Gen2 to have Netstor unit be compatible with
tower Mac Pro or host computer. The approach to set NA255A slot board to PCIe 2.0 is
given in section 2.3 (SW1)in this user’s manual.
1. Install Netstor NP970AG3-H host card into the PCIe slot on motherboard within computer.
2. Loosen the two thumbscrews and remove the side door from NA255A.

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3. Remove the L shape metal bracket at rear of NA255A by loosening the screw on metal bracket.
4. Install one graphics/PCIe card into the PCIe ×16 slot in NA255A and tighten the card with screw.
5. Each graphics card in NA255A is provided with supplementary 6+2 pin and 6-pin PCIe power
cables for sufficient power. Up to four dual-width, full-length graphics cards can be installed
in slots 2 ~ 5 in the Netstor chassis.

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NOTICE
6. Put the side door back to NA255A, and tighten the two thumbscrews to fasten
the side door with enclosure.
(A) Hold the included graphics card holder. Aim
holder’s two holes at the two screw openings
at top of the two pillars within NA255A
enclosure, and have two screws loosely
tightened to card holder.
(B) Slowly push up the bottom side of the metal
card holder until the top side of holder is
firmly attached to graphics card’s metal
back plate.
(C) At this time, use a screwdriver to tightly
tighten the two screws to have graphics
card holder securely fastened to the inside
of NA255A enclosure.
When long length and heavy weight graphics card is to be installed in NA255A, it’s strongly
recommended the graphics card holder is also installed to add stability to GPU card within
the chassis. The procedure for card holder installation is given as follows:
Graphics card
Graphics card
Graphics card
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