Problems with over 15-20 MB failures

Beachloveriow

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Dec 26, 2013
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10,535
This is a long long story
I moved into this house in Nov 2013
I brought with me an older i3 gaming computer with a gigabyte motherboard. By December the MB failed for no reason I could fathom.

So I bought a brand new dell Inspiron desk top. Under warrenty it had the motherboard replaced three times until dell finally sent me complete new machine. I took it out of the box on Friday and by Saturday the motherboard failed. Thinking that this was just bad components or bad luck I got a refund from dell.
I then bought a custom desktop with an i5 CPU and Asus MB and dedicated AMD GPU
Again I had to return the machine 5 maybe 6 times as either the GPU or the MB or both would fail. Again I got my money back but by now I am in despair at what the problem could be.

In despair I got a full Elecrician report and test on the electric in my house. It passed and no faults were found. By the way my sockets are on a RCD circuit and I would notice this would sometime trip.

So thinking my electricity was fine and again it must be bad luck , bad PSU, or bad MB I Eventually I bought a fantastic clevio i7 laptop with nvidia GPU
No prizes for what happened to the laptop. Yeah MB failures. From May 2016 to Aug2016 the laptop had to be returned 4 times and each time the MB failed on the 5v rail.

On 26th Aug I had a great new desktop delivered . i5 skylake Asus MB nvidia GTX 1050 and Areocool 80 plus 600w PSU
It is exactly 7 days later and the machine has no power. I suspect MB failure again.

While all these machine were back at the store getting fixed I went out and bought secondhand machines including 2 laptops (now failed no power) 2 desktops ( one back at the store for a refund and one under my bed with no power to the ..... Yeah you guessed it ... The motherboard)

I had the Elecrician come and test all my electricity again a few weeks back. No problems found but the guy is gonna come back and add a surge protector to the RCD panel.

All this time I have used various surge protectors and even have a UPS with volt regulation.

This is a total mystery to why so many devices are failing. If it's surges how are they getting past surge protector strips.

All in all I reckon I have had 30 RMAs and that's not including the secondhand stuff I didn't bother to return . I'm at my wits end. I don't know what to do next.
I can't keep returning machines to the store under warrenty.

Does anyone know what the heck is going on and why can't the electrician find anything
Thanks in advance

 
Solution


He should have but may not have, if he didn't open the breaker box he would miss it. Also like I said if its intermittent he could have missed it.

PSUs do take the electricity and convert it down, but with bad grounding or excess voltage coming in it has been known to cause problems like this (do your...

Beachloveriow

Honorable
Dec 26, 2013
42
1
10,535
I don't know about the breaker box
But the electrician would sure have noticed when he did his report wouldn't he? I know the voltage was measured combining into my house and it was 240v which is in acceptable range in the UK

Why is it that the MBs or PSUs don't filter down the power to 5v or what ever it that those little capacitors do on the MBs?

I have a copy of the report but I can't work out how to post it as using iPhone
 

Rogue Leader

It's a trap!
Moderator


He should have but may not have, if he didn't open the breaker box he would miss it. Also like I said if its intermittent he could have missed it.

PSUs do take the electricity and convert it down, but with bad grounding or excess voltage coming in it has been known to cause problems like this (do your lights flicker or dim when you use a hair dryer?)

I'm not an electrician so I only have limited knowledge, but its something to check.
 
Solution
You have changed a lot of PCs, but did you change peripherals also?
I bet they stayed the same - same mouse, keyboard, external hdd, printer or something else?
Something is killing your hardware.

Or maybe - somebody from your house inhabitants hate your PCs and are secretively killing them.
 

Eximo

Titan
Ambassador
Other ideas:
Do you live near an airport with radar? Or a weather station?
Under overhead high voltage lines?
Shag carpeting?
Dry skin condition? (static discharge is more common with dry skin)
Pets?

Do your UPS that you have tried activate a lot? I know one my brother had a long time ago would kick on every time the air conditioner caused a power sag. Also the input to the house ran right next to his desk and caused his old CRT monitor to wobble while the air con was running.
 

Beachloveriow

Honorable
Dec 26, 2013
42
1
10,535
@ Rouge Leader - thank you for your input. The electrician is due back on the 12th to fit a surge protector on the breaker box so I will ask him
@ SkynetRising - I would like to think that nobody hates me that much - lol besides I live alone
However I have changed my monitor in the three years since this problem started but I'm not sure if I changed my mouse and keyboard - I will certainly bear that in mind when I get the pc back. However this does not account for a Windows tablet that suddenly died while I left it on charge

If the problem is intermittent however will I find it or solve it
I'm totally stumped and quite righty incredibly upset over the whole thing.
 

Beachloveriow

Honorable
Dec 26, 2013
42
1
10,535
Do you live near an airport with radar? Or a weather station? Nope
Under overhead high voltage lines? Nope
Shag carpeting? Nope
Dry skin condition? (static discharge is more common with dry skin) nope
Pets? Yes but is is banned from using the computer cos I caught her watching doggy porn ( scooby doo)