QNAP TS-451 User Manual

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Chapter 2. Power Button and Reset Button Behavior
 Power button: Press to turn on or turn off.
System
Power button
(Turn on)
Power button
(Hardware turn
off)
Power button
(Force turn off)
All models
Press once
1.5 sec
5 sec
 Reset button: Press to reset the system settings.
System
Basic system reset
(1 beep)
Advanced system reset
(2 beeps)
All models
3 sec
10 sec
Basic system reset (3 sec)
Press the reset button for 3 seconds, a beep sound will be heard. The following settings are
reset to default:
 System administration password: admin
 TCP/IP configuration: Obtain IP address settings automatically via DHCP
 TCP/IP configuration: Disable Jumbo Frame
 TCP/IP configuration: If port trunking is enabled (dual LAN models only), the port
trunking mode will be reset to “Active Backup (Failover)”.
 System Port: 8080 (system service port)
 Security Level: Low (Allow all connections)
 LCD panel password: (blank)*
 VLAN will be disabled
*This feature is only provided by the NAS models with LCD panels. Please visit
http://www.qnap.comfor details.
Advanced system reset (10 sec)
Press the reset button for 10 seconds; you will hear two beeps at the third and the tenth
seconds. The NAS will reset all the system settings to default as it does by web-based
system reset in “Administration” > “Restore to Factory Default” except all the data are
reserved. The settings such as the users, user groups, and the network share folders
previously created will be cleared. To retrieve the old data after the advanced system reset,
create the same network share folders on the NAS and the data will be accessible again.

QNAP TS-451 Specifications

General

RAID levels	1, 5, 6, 10, JBOD
Storage drive size	2.5/3.5 \
Storage drive capacity	3000 GB
Supported file systems	ext3, ext4, FAT32, HFS+, NTFS
Storage drive interface	Serial ATA III
Storage drives installed	Yes
Installed storage drive type	HDD
Supported storage drive types	HDD & SSD
Total installed storage capacity	12 TB
Maximum supported storage capacity	- TB
Number of storage drives installed	4
Processor cores	2
Processor model	-
Processor family	Intel® Celeron®
Processor frequency	2.41 GHz
Flash memory	512 MB
Internal memory	1 GB
Internal memory type	DDR3L
Maximum RAM supported	8 GB
Wi-Fi	No
Ethernet LAN data rates	1000 Mbit/s
Supported network protocols	CIFS/SMB, AFP(v3.3), NFS(v3), FTP, FTPS, SFTP, TFTP, HTTP(S), Telnet, SSH, iSCSI, SNMP, SMTP, SMSC
Fiber ports quantity	0
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Chassis type	Tower
Cooling type	Active
Fan diameter	120 mm
Product color	White
LED indicators	HDD, LAN, Status, USB
Number of fans	1 fan(s)
Cable lock slot type	Kensington
Type	NAS
Device class	Home & Home Office
Backup features	Cloud, iSCSI LUN
Number of users	4096 user(s)
Security algorithms	256-bit AES, FIPS 140-2, HTTPS, SSH
Operating system version	4.1
Operating system installed	QNAP Turbo System
AC input voltage	100-240 V
Power supply location	External
Power supply unit (PSU) capacity	90 W
Cables included	AC, LAN (RJ-45)
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	5 - 95 %

Weight and Dimensions

Depth	235 mm
Width	180 mm
Height	177 mm
Weight	3000 g
Package weight	4300 g