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Windows 7: I have a UNIQUE computer problem

21 Jul 2013   #11
Sub Styler

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by Magikal
Quote   Quote: Originally Posted by ANAC
  • Have you tried a Tin Foil Hat for your monitors?, don't laugh, I use one on my speakers to cut down on the interference from our wi-fi, that may at least see if you are receiving interference. The foil will block it.
I was always told to keep aluminum foil away from PC's as they can create a charge of some kind.
Tin foil around an EMI producing device will reflect the interference back inside and could potentialy lead to a significant positive charge. Putting it around a non EMI producing device will help shield it.

PC's should not be giving out a significant amount of EMI as the manufacturers have long been governed by radio interference regulations.

Foil around cables. I would
Foil around speakers. I Would
Foil around Monitor. I would NOT (mainly because of thermal insulation)
Foil around Desktop. I would not. Theoretically not a problem but I would rather have any EMI leaving the chasis rather than bouncing around inside causing potential BSOD


My System SpecsSystem Spec
.
21 Jul 2013   #12
Magikal

Windows 7 64 bit
 
 

Quote   Quote: Originally Posted by Sub Styler View Post
Quote   Quote: Originally Posted by Magikal
Quote   Quote: Originally Posted by ANAC
  • Have you tried a Tin Foil Hat for your monitors?, don't laugh, I use one on my speakers to cut down on the interference from our wi-fi, that may at least see if you are receiving interference. The foil will block it.
I was always told to keep aluminum foil away from PC's as they can create a charge of some kind.
Tin foil around an EMI producing device will reflect the interference back inside and could potentialy lead to a significant positive charge. Putting it around a non EMI producing device will help shield it.

PC's should not be giving out a significant amount of EMI as the manufacturers have long been governed by radio interference regulations.

Foil around cables. I would
Foil around speakers. I Would
Foil around Monitor. I would NOT (mainly because of thermal insulation)
Foil around Desktop. I would not. Theoretically not a problem but I would rather have any EMI leaving the chasis rather than bouncing around inside causing potential BSOD


My vga monitor cable has a ferrite though. To protect against interference I guess. So should I wrap a little bit of foil around the wire part after the ferrite or before it?
My System SpecsSystem Spec
21 Jul 2013   #13
Sub Styler

Windows 7 Ultimate x64
 
 

the ferrite, is a magnetic loop to stifle any magnetic interference from traveling down the cable, a VGA cable will already be shielded internally, there is no point in wrapping it in foil, sorry that was a general do's and dont's to clarify on the tin foil point.

Although the monitor idea would be ok for a short period to see if it helps, just dont leave it wrapped or your monitor will overheat. About 5mins will be fine.

A Ferrite (magnet) wont repair a degraded signal though, have you tried multiple VGA cables or are all these tests from the same cable?
My System SpecsSystem Spec
.

21 Jul 2013   #14
Magikal

Windows 7 64 bit
 
 

Quote   Quote: Originally Posted by Sub Styler View Post
the ferrite, is a magnetic loop to stifle any magnetic interference from traveling down the cable, a VGA cable will already be shielded internally, there is no point in wrapping it in foil, sorry that was a general do's and dont's to clarify on the tin foil point.

Although the monitor idea would be ok for a short period to see if it helps, just dont leave it wrapped or your monitor will overheat. About 5mins will be fine.

A Ferrite (magnet) wont repair a degraded signal though, have you tried multiple VGA cables or are all these tests from the same cable?

Each of my monitors have their own vga cable so yes I have used different cables.
My System SpecsSystem Spec
21 Jul 2013   #15
DavidE

Multi-Boot W7_Pro_x64 W8.1_Pro_x64 W10_Pro_x64
 
 

Can you take one of your PCs to a friends house that is not in your neighborhood and test it there?
My System SpecsSystem Spec
21 Jul 2013   #16
FuturDreamz

Windows 8 Pro (32-bit)
 
 

Does your computer support digital video output? that would rule out interference.
My System SpecsSystem Spec
22 Jul 2013   #17
Anak

Microsoft Community Contributor Award Recipient

Win 7 Home Premium 64bit Ver 6.1.7600 Build 7601 - SP1
 
 

Thanks Sub Styler I learned something today about tin aluminum foil and computers, and for the thread synopsis it helps to keep things on track.

Magikal, it sounds like you're entertaining the idea of using the foil on your monitor, be alert and no longer than the 5minutes like Styler suggested.

David's tip about taking one of the PC's to an entirely different location is a good one.

FuturDreamz tip had me looking to see if your Intel extreme graphics 2 does support DVO and I came up with this:
I have a UNIQUE computer problem-intel-display.jpg

Source: http://download.intel.com/support/graphics/sb/14xug.pdf

If you see it listed, you have it. If you don't, you don't.

Also:
Graphics — Troubleshooting TV connections to computer

Graphics — Intel® Graphics And Televisions FAQ


My System SpecsSystem Spec
22 Jul 2013   #18
Magikal

Windows 7 64 bit
 
 

In order to have a digital display, I'd have to buy a whole new monitor. My DVI socket on my pc tower is DVI-D.
My System SpecsSystem Spec
22 Jul 2013   #19
Anak

Microsoft Community Contributor Award Recipient

Win 7 Home Premium 64bit Ver 6.1.7600 Build 7601 - SP1
 
 

This is frustrating, and I can see you've been at it longer:

At my wits end! Hope someone can help! - Geeks to Go Forums

Is it Windows or my PC? | Windows Secrets Lounge

After reading through those two threads, your theory about the bad graphics chip might be true. I believe you said in one or both you bought the machines from Ebay?

That got me to thinking about dried out thermal paste, and I couldn't find anywhere that anyone mentioned about testing for a bad Motherboard (MB).

You could use Prime95 to test the MB to see if it can handle the stress, and heat, I can point you to it, but I don't know much about it because I've never used it.

Here's some documentation: Prime95

If you decide to go with the Jaton card install (Support) don't forget to go into the bios and disable the on board graphics, and personally in my humble opinion, I'd stay away from Ebay.

If it's not too late return those units and deal with a local computer shop.
My System SpecsSystem Spec
22 Jul 2013   #20
Golden
Microsoft MVP

Windows 7 Ult. x64
 
 

My System SpecsSystem Spec
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 I have a UNIQUE computer problem




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