Hackintosh problem? electrical interference?

VioletDragon · Jul 20, 2015

hi I'm having some weird thing going on with one of my hackintoshes i keep having weird dots across the screen with a white screen it only seems to do it when the fridge makes a clunk any ideas? it does it with my macbook and Hackintosh i have to keep turning the TV off and back on then it goes normal any ideas? hardware H61N-USB3 Core i5 2500k HD 3000 - HD Radeon 5450

VioletDragon · Jul 20, 2015

does the same when the boiler comes on any ideas anyone?

WonkeyDonkey · Jul 20, 2015

Clearly some kind of electrical interference. Whats the details of the PSU ?

VioletDragon · Jul 20, 2015

the Power Supply is a Bostec 300watt I'm using it as a temporary PSU its from out of a old Pentium 4 could it be that whats causing it? I've also got the case of the machine also haven't put that on yet weird thing is it does the same with my Macbook also when I'm watching normal TV it does it then also

VioletDragon · Jul 20, 2015

i meant Bestec sorry

WonkeyDonkey · Jul 20, 2015

jbamford said:
i meant Bestec sorry

Quite possibly. Cheap & cheerful PSU's, particularly those of old, tend to have inferior shielding and power regulation, and are therefore more susceptible.

Are you able to try with a different PSU ?

VioletDragon · Jul 20, 2015

I've ordered a new PSU a corsair 430watt waiting for it to come ordered it on sunday I've just changed the HDMI cable from the hack to the 32inch TV and its seem to not doing it now but i don't get how a cable can cause it

WonkeyDonkey · Jul 20, 2015

jbamford said:
I've ordered a new PSU a corsair 430watt waiting for it to come ordered it on sunday I've just changed the HDMI cable from the hack to the 32inch TV and its seem to not doing it now but i don't get how a cable can cause it

If your cables are unshielded it can hapen very easily. You can identify the shielding on a cable typically if you cut it and see a kinda hardish foil wrap around the bunch of wires. Another way to shield is similar to our tv aerial cables here in UK, where they have lots of strands of copper wire intertwined around the central core. Its almost like creating a miniature faraday cage around the cable.

Generally if you look for new cables, its better to look for something that specifically states it is shielded. The cheap £2 type things rarely are.

VioletDragon · Jul 20, 2015

yeah you mean coax cable I'm from the UK also its just weird its only just started happening maybe the cable is old and breaking down or something thanks for your help :thumbup:

WonkeyDonkey · Jul 20, 2015

jbamford said:
yeah you mean coax cable I'm from the UK also its just weird its only just started happening maybe the cable is old and breaking down or something thanks for your help

Coax demonstrates it yup. There is the possibility it could be brittle cable of course, but I suspect it would need to be very old for that to happen.

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