Question PC monitor flickers turns on/off when opposite wall fan switch turned on or off.

[TalkingTomCat]

This is a weird issue started facing recently after upgraded my old system monitor
From Samsung 19 inch monitor to Dell 24 inch.

Checked electric wires with engineers and everything else is fine.

Is this normal?

Trying with new cpu fan, power cables etc as those are 10 years old.

 

[white.a.drew]

This is a weird issue started facing recently after upgraded my old system monitor
From Samsung 19 inch monitor to Dell 24 inch.

Checked electric wires with engineers and everything else is fine.

Is this normal?

Trying with new cpu fan, power cables etc as those are 10 years old.

This is fine and normal your pushing the limits of the breaker your room is on I don't know how much you have plugged in or what all you are running off the one breaker but it's to it's limit one more big ticket item and your popping it

 

[TalkingTomCat]

This is fine and normal your pushing the limits of the breaker your room is on I don't know how much you have plugged in or what all you are running off the one breaker but it's to it's limit one more big ticket item and your popping it

Using pc in my room for 10 years.
Suddenly started having this Flicker issue after purchasing 2nd hand monitor.
24 inch dell

 

[white.a.drew]

Using pc in my room for 10 years.
Suddenly started having this Flicker issue after purchasing 2nd hand monitor.
24 inch dell

This is normal again one breaker doesn't always power one room electricians have been known to short cut things and run two sometimes three rooms off of 1 15amp breaker which does nothing but over load it int the end.

 

[TalkingTomCat]

This is normal again one breaker doesn't always power one room electricians have been known to short cut things and run two sometimes three rooms off of 1 15amp breaker which does nothing but over load it int the end.

So there is no solution or I can ignore flicker issue and continue with my daily work?

 

[white.a.drew]

So there is no solution or I can ignore flicker issue and continue with my daily work?

I mean you can test this by unplugging a few non essential items from outlets for a few and see if the problem persist if it doesn't it maybe a psu issue. Not providing enough power to the GPU for dual rendering

 

[TalkingTomCat]

I mean you can test this by unplugging a few non essential items from outlets for a few and see if the problem persist if it doesn't it maybe a psu issue. Not providing enough power to the GPU for dual rendering

OK.
My existing PSU is 750 ways corsair.
I have 3 spare PSU 1000 watts from antec and corsair.
Will give those a try too.
Ty

 

[geofelt]

If you have electrical load issues, you might try a UPS to filter out electrical glitches.

Whenever a fan or other such item is powered on, there will be a higher draw on current than after it gets operating.

What is the power draw of the old and new monitors?

 

[Bob.B]

This is a weird issue started facing recently after upgraded my old system monitor
From Samsung 19 inch monitor to Dell 24 inch.

Checked electric wires with engineers and everything else is fine.

Is this normal?

Trying with new cpu fan, power cables etc as those are 10 years old.

Run an extension cord to a couple of sockets in other rooms....test.

 

[TalkingTomCat]

If you have electrical load issues, you might try a UPS to filter out electrical glitches.

Whenever a fan or other such item is powered on, there will be a higher draw on current than after it gets operating.

What is the power draw of the old and new monitors?

I don't have a UPS to test.
How to check power draw on monitor?
I have ordered new HDMI cables and power cables, will give things a try with those.
(old cables are almost 10 years old)

 

[TalkingTomCat]

Run an extension cord to a couple of sockets in other rooms....test.

You mean take electricity from other rooms to power on pc? With help of extension cord?

 

[Bob.B]

You meant take electricity from other rooms to power on pc? With help of extension cord?

Yes.
It's just moving to a different power circuit to see what the results are.

 

[Inthrutheoutdoor]

Yes.
It's just moving to a different power circuit to see what the results are.

This will only work if that other circuit is on a different breaker from the one in their computer room though, but a good way to try to isolate the issue nonetheless....

Perhaps it's the monitor itself that is flakey or just plain defective ?

@TalkingTomCat - do you still have the old sammy monitor (or any other one) to reconnect & see if the problem still exists ? If so and it goes away, that would seem to confirm that the Dell is wonky, yes ?

 

[TalkingTomCat]

Yes.
It's just moving to a different power circuit to see what the results are.

Ok will give this a try.

 

[Bob.B]

This will only work if that other circuit is on a different breaker from the one in their computer room though, but a good way to try to isolate the issue nonetheless....

Perhaps it's the monitor itself that is flakey or just plain defective ?

@TalkingTomCat - do you still have the old sammy monitor (or any other one) to reconnect & see if the problem still exists ? If so and it goes away, that would seem to confirm that the Dell is wonky, yes ?

True......that's why you try different sockets in different rooms.

 

[TalkingTomCat]

Yes.
It's just moving to a different power circuit to see what the results are.

Ok will give this a try.

This will only work if that other circuit is on a different breaker from the one in their computer room though, but a good way to try to isolate the issue nonetheless....

Perhaps it's the monitor itself that is flakey or just plain defective ?

@TalkingTomCat - do you still have the old sammy monitor (or any other one) to reconnect & see if the problem still exists ? If so and it goes away, that would seem to confirm that the Dell is wonky, yes ?

I still have the old Samsung monitor, not having flicker issues with same.
Issue started with Dell 24 inch monitor (bought it locally, used by someone since 2018)

No bill and warranty left.

 

[Inthrutheoutdoor]

Well that helps narrows it down a little then, did you try the extension cord hook-up yet with the Dell in the system ?

 

[TalkingTomCat]

Well that helps narrows it down a little then, did you try the extension cord hook-up yet with the Dell in the system ?

No not yet.
I am hospitalized, will do same after discharged.

 

[TalkingTomCat]

Hello, Got an update
https://amzn.eu/d/6jgj9lo ordered and installed this..
No flickering now, probably HDMI cables which came with old 2nd hand monitor were old or unable to take load balance..
Will update if flickering starts again.