I have 8 channel DVR. The unit is currently suffering from a rebooting issue. Approx. every 5 minutes its rebooting.

I have pulled all of the connection from the back of the DVR as well as unplugged the HD with no result. There no error msg

Model : HT4208-II

SATA HD

HELP!!!

thank you!!!

I think it is the hardware failure. How old is it? Like laptop, rebooting can be caused by CPU getting too hot due to dust prevent heatsink fail to cool off the CPU

did still booting every 5 minutes after unplugged?

Yes. It keep rebooting every within 5min.

Now back to normal after I replace another power adaptor. Is power adaptor issue.

Facing the same issue here.
I notice it will reboot after some period of times, roughly 3-4 days CCTV running.
Suspect the decoder is heating up cause the reboot. Tried putting a fan to cool down the heat, but it doesn't help.

Rebooting could be due to :

1. Overheat or under power - power adapter or overheat
2. Software hang - due to wrong setting (normally network, p2p issue)

Try replacing the AC adapter
Find an AC adapter that provides the same voltage, same polarity, but with higher amps

Don't use those universal AC adapter where you can change the voltage, those are crap

Thanks for the suggestion.
The installer help me to format the hardisk.
According to him, the hardisk need to format after some period of times to keep the performance.
For my case, I have using it nearly 3 years but never format it.
Lets monitor it after this.

Absolute nonsense

if it keeps rebooting, most likely

1. adaptor issue (power supplied from adaptor is not enough to boot both the mobo + hdd)
2. mobo fan/casing fan issue (if your place is dusty, the fan bearing most likely gave up dy. Open up the casing, if your fan is not spinning, confirm sure your mobo overheat over time)
3. hdd issue (especially if you're not using surveillance HDD eg: skyhawk from SG, purple from WD)
4. mobo issue
5. Sata power/data cable faulty (very very VERY slim chance but kena before)

Occurrence frequency from 1 > 5

mobo stand for?
My DVR without fan.
I did suspect the adapter as well but yet to be try out.
I do shutdown the DVR for several days and start again to observe the rebooting pattern.
First 3 days the DVR just working fine without rebooting. Day 4 the DVR start rebooting itself.
Once it go into rebooting mode, it will keep rebooting non stop until I need to shutdown the DVR.

mobo = motherboard/main board

It'd help us to understand better if you can take a picture of the recorder, front panel and preferably the sticker (model) usually underneath the belly of the recorder.
Recorders without fan tend to have a higher warranty return rate for us.

Chances are if your recorder is more than 1 year old, most likely it's the adaptor issue.
Just double check if the adaptor is 12V 2A, also if the connector is proprietary like HIK recorders or just normal DC plug.

I hate this type of question without providing model or any pictures or your setting screen. Wish you luck

Decoder Model: Alma-ED9308H5NV-8P
AC Adapter Model: 2ABU120R, input: 100-240V, output: +48V
Hardisk: Toshiba DT01ABA100V

You are right as formatting the disk doesn't help.
After a week, the rebooting issue still exist.

That's why I said it's absolutely nonsense. Formatting the system doesn't help
The installer just trying to run from his responsibility
You need to find a power supply with higher amp. Voltage & polarity needs to stay the same, just the amp need to be higher

I'm assuming you're using IP cameras? 48V should be an adaptor for built-in PoE switch iinm.

To avoid further distruption just buy a new DVR 8 channel costing less than 150bux.

Yes, IP camera 3mp.
You means my existing adapter is not compatible?