Question about Samsung SDE-120n 4 Channel DVR System

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Boots up and runs perfect for about 5-10 minutes. Then it beeps twice and shuts down and does a reboot.

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Could be a hard drive, power supply or DVR board issue. Try testing each by replacing except the DVR board which you cannot change without a new board. At which point, a new DVR is recommended.

Posted on May 17, 2016

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Posted on Jan 02, 2017

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My SDE - 120N Loads up and runs perfect for about 5 minutes and then it beeps twice and shuts down and restarts. Why?


listen to hear if the cooling fan turns on, you can probably turn it over and look through the grid, if it is loaded with lint then blow it out.. possible your CPU cooling fan is shot

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Sounds like you are overheating. One way to tell if it's overheating is you say it will run for about 30 minutes then shuts down. When it shuts down try rebooting to see if the boots successfully. If it fails to boot successfully right after it shut down then you are probably overheating. If you wait awhile to let it cool down for 30 minutes or so and if you reboot and it does it successfully you definitely have a overheating problem. If I remember correctly all those compaq sr series have loud and fast running fans. Computers overheat because of three reasons for the most part: 1) A fan has stopped working. 2) The Thermal Paste on the CPU and Heat Sink has dried up or is not thick enough to keep the unit cool. 3) Dust has clogged the fan vents and inside the computer. Fortunately for you desktops don't have to be completely disassembled like laptops to get to the fan, CPU and heatsink. Just pop the case and you'll see the components attached to the motherboard

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1 Answer

Shuts off and reboots then shut off in the middle of reboot.


these posts are endless here, truely
had to google it ah a DESKTOP
old Pentium 4 processor
circa 2003 , tiny HDD, and memory. old, Goodwill has 1000s parked.

well it can be many things,
did you remove all the cards first, (yes all)
does that hold up power? now?
it will beep, like that, if video car is pulled
and then pull memory, and it will give the ram missing beep codes
all this is covered in the great HP service books.,
beep codes and all
the power switch can be bad or the line cord. to wall. bad.
the power switch unplugs and you can short its 2 pins
to turn on PC< hold up now>?
hold up, means stay running,

you can strip it down, to just mobo and PSU
sure can,.
the CPU can overheat, sure can. and can be checked.
cpu fan works so is not that. im sure. and new thermal grease.

data sheet shows. (pull it,?)
nVidia GeForce4
GeForce4 MX
MX
440 440 AGP
AGP 8x
8x graphics
graphics card
card

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I have a fujitsu seimens scaleo p computer with a asus pg5d1-fms motherboard. Everytime i start the computer up it runs for maybe five minutes and boots up and everything but it just shuts down. During the...


these are the meanings of those two beeps u're getting:
1 short beep : Normal POST - system is ok
1 long, 2 short beeps : Display adapter problem (MDA, CGA)
if u're still hearing 1 long and 2 short beeps then try to swap the MDA, CGA adapter around, if it is ok then that is the problem...MDA and CGA is just like the VGA card they supplements each other. replace MDA/CGA card with another then see.

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Change the CMOS battery.
It may be dead after sitting.

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http://support.gateway.com/support/drivers/dlcenter.asp

please rank me if you can

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Do you have the case speaker connected? If so listen for the bios beep codes. You will have to know which bios you have.

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