Question about Samsung SyncMaster 913V 19" Flat Panel LCD Monitor

1 Answer

Resolution Issue "Not Optimum"

I got a sumsung SyncMaster 913v and one of the problems seemed to be the old 15 pin cable so i bought a new one and plugged it in and it worked. The resolution wasn't to my liking though so i changed it from 1280x 960 to 1280 x 1024. Anyway when i did that the screen went black and nothing ever showed up. I rebooted the computer and this message started floating around the screen "Not Optimum Mode. Recommended Mode 1280x 1024 60Hz" the screen looks like the one that shows up when you plug in the monitor without plugging in the 15 pin. the message is in a box like the "Check Signal Cable" window. Anyway I've tried changing the resolution back all different types seeing which one worked previously because im not totally sure that 1280x960 was what it was on. And the settings have never left 60Hz. Any advice or a solution would be great

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  • Anonymous Jan 06, 2008

    I have exactly the same problem as davcar with my Samsung 913V. The "not optimum" message goes away if I power off the monitor for at least 10 minutes and then power back on, with or without rebooting the PC. Sometimes it will be OK for hours, and other times it goes out in a few minutes. I can force it to repeat the problem by just trying to change the screen resolution. Right now I am stuck in the present resolution since any change attempt will cause it to go black and bring up the floating message window. The monitor is otherwise fine and I have tried it on two PC's and two different cables with the same results. Very frustrating. Any further suggestions before I go aout and buy a new monitor? Mike H.

  • Anonymous May 26, 2008

    I have the same problem. It occurs when the monitor changes resolution or sometimes after it has been on for a period of time. I get a blank screen or "out of range error". Most commonly this problem occurs when switching to the resolution 1280x1024, eg starting a game from a menu or similar. I am sure it is not my video cards because I have two brand new 9600gts which I was able to test both independently and in SLI, always with the same results. Also, When I tested my system with a friend's asus 22" monitor (at the same and higher resolutions), I was unable to repeat the problem. So far I have discovered, as another user has described, turning the monitor off for 5 minutes will sometimes help.

  • Anonymous May 29, 2008

    got the same problem too


  • 12234567890h Oct 01, 2008

    I have the same problem
    and the solution is not realy a solution, only a way to get a new monitor, but my warranty is over
    so is there anothe solution?

  • rfchamusca Dec 25, 2008

    I have the same problem. It always happens after:

    • prolonged time of use;

    • exiting games;

    • switching screen frequency rates (60, 70 or 72hz)

    The "turn off monitor" trick works, but it's annoying. It's probably a HW problem, since I've tried several drivers of my graphics card (Nvidia 7300 GT). Guess it's time to buy a new one...

  • Anonymous Jan 20, 2009

    PC boots up ok but only signs of life from monitor is 'Check Signal Cable'. Its about 3 years old so out of warranty. I'm hoping someone finds a simple cure. In the meantime, I'm using my old 17" CRT

  • Anonymous Apr 22, 2009

    i do have the same prob. it was working fine, then some time i unpluged the prower then it has started giving me this message



1 Answer

Hi Guys.
I have had this problem and after a bit of searching found that it is a known problem.
Give Samsung a ring and if it's in warranty they will replace it

Posted on Mar 13, 2008


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Samsung syncmaster 913v gives message ' not optimum mode"

The 913V has a native resolution of 1280x1024. If you use a higher resolution than that, you'll get slightly blurry text. If you use a lower resolution, then images will be slightly choppy around the edges.

To get rid of the message, set your resolution to 1280x1024.

In Windows XP, you do this by right-clicking on the background (desktop) and selecting "Properties" to bring up the display properties.
Select the tab marked "Settings" and look for a "Screen Resolution" slider. Move that slider to the right until it displays "1280x1024" and hit "OK"

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This means your computer windows resolution is not display in the correct resolution which your samsung LCD will take.

What you need to do it boot the computer in safe mode. (pressing F8 at start up and select safe mode) This should bring the windows to start up in the generic 800x600 resolution.

Once you are able to see the display in safe mode, go onto the display properties and change the resolution.
* right click on desktop -> properties -> settings

Please rate this if it solves your issue. If you need further assistance please post.

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"Not Optimum Mode 1280x1024 60Hz"
- The monitor turns on but turns off by itself, the LED blinks green.
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the manual you can find on ebay (my ebay name is asnerejas123):
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I am a technician-informatic. I have repaired about 60 Lcd Samsung monitors with thees problems - not optimal resolution mode and dark screen problem. So i decided to made manual how to repair lcd samsung monitors.The repair process is very easy and simple 10-30min. does not need a lot of experience in electronics and expensive instruments.

if you are interested check it.

Samsung monitor repair manual guide 710n,913v,510n more
or just enter number in search field: 220409788372

thank you

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1 Answer

I have the samsung syncmaster 913v 19'' lcd monitor.Recently,the thing blacks out after 1 hr or so and the not optimum mode signal appears.I cannot raise the resolution above 1024x768 without blacking out...

It seems like a lot of people have experienced this issue after a year or two of use. There are two things people reported working...

Try adjusting the refresh rate higher or lower... 60Hz is usually stable in any resolution.

Completely unplug monitor for 5 minutes or longer. Seems like it works for some and not others.

Samsung has a 3 year warranty. If neither solution works, see if it is still under warranty.

Good luck!

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Monitor syncMaster 913v wont run 1280 1040 Resolution has in past goes blank moving "box- message' says ajust to 1280 1040 resolution Runs on other resolution settings ok

The problem is main board inside monitor which is needed to be changed with new one. So I suggest you to take monitor to the nearest samsung's service center.
Best regards

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