I'm not an electrician but I some clever heads together

[beachlover]

Hi everyone
I have the strangest problem that no matter who I ask in the trade they seem to scratch their head and tell me to buy a surge protection unit. I have bought a million surge protections units Just sayin

Here is the problem and some of things done over the past three years to try to resolve it ....

I seem to be getting some sort of problem that is blowing up my computers. No amount of electrical test seem to find the faults. It's not just bad components or the company's where I buy the machines either.
I have estimated Over 16 devices blown and 47 repairs since 2014. This is from five different companies where I have purchased computers with a warranty.
Computers last typically for anything up to two days or two weeks before failing. This most common failure benign burnt chips on the GPU s

It is my understanding The modern motherboards have built in surge protection and they go into protection mode when a surge is detected. I have had this happen but when I next switch on the computer the GPU is damaged or becomes damaged.

Work carried out on my electricity by the electrician working for the housing association house I live in

1 - four different surge protectors bought
2- ups bought with surge protection
3 - 2013 a full electrical test on RCD panel and all sockets - passed
4- 2015 another full electrical test - passed
5- electric supplier monitored for surges from outside- none detected
6- two sockets faceplates replaced (the ones used for my computer)
7 - independent electrician hired tested sockets. No fault found.
8 - Eco Max Home Voltage optimiser fitted on RCD panel and set to 230v

Other information.
No other devices in the house fail and we have two HD TVs, a MacBook, two iPhones, router, and the usual lamps, kitchen equipment. New mouse,keyboard,HDMI cables,USB cables purchased

UK based electrical system with RCD panel with an additional Volt regulator fitted. We have 240 volts coming into the house
The housing association also fitted a gadget that regulates the volatage 230

On the last occasion I saw the the computer component frizzle smoke and could see the damage. I'm really worried about a fire risk
I have on occasion see sparks come from the switch on the outlet.

I would appreciate your thoughts on why this is happening to me as three independent electrical test and Electricians tell me they can not find or think of what could be causing it.

No computing for me for a while

Many thanks

 

[beachlover]

Theories they are indeed, and with or without theories or headscratching or doing nothing at all-you will still have a blown computer. So theories are not hurting or adding to your problems.
Power analysis is a way of establishing some facts. Maybe I am wrong fully accepted and I do offer this very tentatively, but at least you are out of the realm of theory and into facts. What would it hurt to try it, well apart from your bank balance. At least if you turn off the PV you should be able to find out if it is a contributive factor without power analysis.
Maybe your landlord would put something toward power quality analysis monitoring?
I think I would be looking into a Harmonics filter for single phase. The energenie power meter would in no wise give power quality analysis. A meter for this type of work costs upwards of £1500. There are companies that specialise in this. However it is not cheap. And finally it may not be the answer. I promise I wont talk about this again.

I have added it to the list to ask the electrician on Monday
Thanks

 

[beachlover]

I have added it to the list to ask the electrician on Monday
Thanks

There is the list so far
I'm hoping he doesn't think I'm some sort of smart Alec or a crazy dudess

Lol

 

[The Ghost]

Not too sure about the last one....MCB! first line

 

[DPG]

I'm not sure who's taking the mick here now Daz

 

[Midwest]

Not too sure about the last one....MCB! first line

Square peg in a round hole. If Eaton say a Wylex mcb can be fitted in one of their CU's, then that's fine. I'll doubt they would.

 

[The Ghost]

Bit confused there Midwest no oblique reference to your correct I.D. of mixed MCBs' its just the beachlover wrote MBC instead of MCB in first line, the first part was in reference to the last point in Beachlovers' list of points to bring up

 

[DPG]

Nobody has asked what 'signal phase' is yet either. Daz

 

[Midwest]

Bit confused there Midwest no oblique reference to your correct I.D. of mixed MCBs' its just the beachlover wrote MBC instead of MCB in first line, the first part was in reference to the last point in Beachlovers' list of points to bring up

Apologies

 

[beachlover]

Apologies

Lol
I can't even blame the iPhone that time single phase
I scrubbing it out and writing a hundred lines
I must spell single I must spell single

Nobody has asked what 'signal phase' is yet either. Daz

 

[beachlover]

Lol
I can't even blame the iPhone that time single phase
I scrubbing it out and writing a hundred lines
I must spell single I must spell single

There is the list so far
I'm hoping he doesn't think I'm some sort of smart Alec or a crazy dudess

Lol

View attachment 34843

There is the list so far
I'm hoping he doesn't think I'm some sort of smart Alec or a crazy dudess

Lol

View attachment 34843

Should I add anything else to the list ?
Perhaps I should ask him to PAT test the freezer we have in the shed?
It's the only appliance that is not new
. Brought it with me from the previous property. The property were computers did not blow up !!!

 

[Kamikaze]

If I put my computer on the floor rather than on the computer shelf will it be grounded?

Ha, ha very droll! To understand ground circulating currents you have to understand the relationship between capacitance, inductance, voltage and currents in a computer system. Circulating currents can cause problems when output currents cause a difference between the actual output voltage and the feedback voltage as well as when the output ground currents move the power supply's analog ground off its true ground. They also cause problems when the output current in the supply and ground rails interfere with the delivery of an accurate voltage to the system and when the circulating currents are in loops which then radiate excessive electromagnetic interference into the system causing it to fail. Thinking about it, the only way to destroy this many computers with ground circulating currents, is by corrupting their bios chipsets. Are you sure you are not loading some computer virus onto your systems?

 

[DPG]

Computer viruses do not destroy electrolytic capacitors! Daz

 

[Midwest]

Computer viruses do not destroy electrolytic capacitors! Daz

You never seen The Matrix; red pill or blue pill?

 

[beachlover]

Ha, ha very droll! To understand ground circulating currents you have to understand the relationship between capacitance, inductance, voltage and currents in a computer system. Circulating currents can cause problems when output currents cause a difference between the actual output voltage and the feedback voltage as well as when the output ground currents move the power supply's analog ground off its true ground. They also cause problems when the output current in the supply and ground rails interfere with the delivery of an accurate voltage to the system and when the circulating currents are in loops which then radiate excessive electromagnetic interference into the system causing it to fail. Thinking about it, the only way to destroy this many computers with ground circulating currents, is by corrupting their bios chipsets. Are you sure you are not loading some computer virus onto your systems?

My eyes are bleeding
Wtf does all that mean? :mkungfu:
Whoozzzze something flew over my head

 

[beachlover]

Well I have to agree with Daz
I don't have a computer virus because quite simply .... I don't have a damn computer