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

[beachlover]

@dmxtothemax

I'm buying good quality computers from good British companies. I'm positive they are using good quality parts. The PSUs have been changed as has every single computer I have bought over the past three years. Each computer I have bought pass all the stress test before shipped.

I'm not overclocking
I'm not using high stress games. I'm aware of making sure fans and cooling are up to scratch.
I have had CPUs ranging from i7 with nvidia GTX 1050 to the skylake i5 with nvidia 1060. The computers I have had are more than enough to cope with the task I do. I really only play Warcraft which is hardly a high stress game. So I don't think I'm over stressing or overheating the GPUs. No to have this happen to so many different computers and GPUs it has to be something external to the machines

Thank for your thought tho

I'm due to have yet another GPU delivered tommorow to replace the most recent on that one that burnt.
I'm just thinking of a way I can put it on my computer and on another elecrical source.

 

[beachlover]

I have a few thoughts.

1) I would be tempted to try a Z reading between Live and neutral at the incomer of the consumer unit and outgoing connectors of the RCD to ensure there is not a high resistance fault somewhere in the neutral. It is a test that is not necessarily recorded as part of an EICR (Electrical Inspection). If the value is bad, then the PFC reported on the form will be the reading between Live and earth and a high neutral resistance may be missed. I am not sure a high neutral resistance would cause this but I know neutral problems can have odd effects and most things have been ruled out.

2) Is undervoltage a possibility? The 230 Volt regulators will prevent overvoltage and spikes, but will it do anything if the voltage drops to an unacceptable level? Less voltage means higher current, and more heat. I know many PC power supplies can cope with a wide range of voltages, but are the computers that have burnt out using power supplies that can run on 110Volts (American standard) or ones that require 230Volts? There are posts on PC web sites that suggest prolonged undervoltage can damage PC’s (mostly power supplies) and I understand that things like washing machines have a significantly reduced lifespan if the voltage is regularly lower than acceptable (one job I worked on had prolonged periods where one phase was at 195 Volts, one at 215 volts, and the third phase at 235 volts, so it can happen).

3) Is the supply listed on the electrical inspection described as TN-S, TN-C-S or TT?
TN-C-S with neutral supply problems may create problems.

Thanks so very much all this
I don't know what any of it means but at least I can read it the the electrician that is coming on Monday. It has give me something to start on. Brilliant!!!'
You have given me some hope - thanks soopoooppop very much

 

[beachlover]

3) Is the supply listed on the electrical inspection described as TN-S, TN-C-S or TT?
TN-C-S with neutral supply problems may create problems.

I'm trying to upload a picture of the electrician report
I don't really know what any of it means

 

[DPG]

I'd be interested to here Lucien's thoughts on this one. Daz

 

[beachlover]

Ne

I'm trying to upload a picture of the electrician report
I don't really know what any of it means

View attachment 34776

View attachment 34778

Anyway brand new GPU has arrived
I have not had the machine plugged into the mains for over 10 days
I'm thinking to run my electric extension that I use to mow the lawn from the lounge socket into my room where the computer is

Wish me luck
I think I might need it

 

[Midwest]

I have no experience with the stuff, but is that a PV circuit I see there, and Air Source Heat Pump?

 

[Midwest]

PS Are you a computer bud who leaves their stuff turned on all day? Plus would it not be an idea to have this problem resolved first before keep buying replacement MB, GPU etc.

 

[beachlover]

Yea

I have no experience with the stuff, but is that a PV circuit I see there, and Air Source Heat Pump?

Yeah
That's our heating and hot water by air source heat pump

 

[Midwest]

Yea


Yeah
That's our heating and hot water by air source heat pump

I might be clutching at straws, but someone more intelligent might be able to rule that in or out.

 

[beachlover]

Nope Over the past three years the amount of failures has made me paranoid about making computers are switched off and unplugged
Yeah that would make sense
However I'm kind desperate to get on my computer world again. I find many people who play games as escapism are much the same.
I'm going half crazy trying to do normal internet stuff on my phone too

PS Are you a computer bud who leaves their stuff turned on all day? Plus would it not be an idea to have this problem resolved first before keep buying replacement MB, GPU etc.

ah