| Windows 7: Can auto-degauss be disabled via BIOS or s/w? |
04 Dec 2010
|
#1 | | Windows 7 Ultimate x32 (UPDATE: Now x64!) Visakhapatnam, India |
Can auto-degauss be disabled via BIOS or s/w? [SOLVED...uhm, well, cleared my doubt anyway]
You see, I have an LG 700E CRT monitor and the auto-degauss noise at every start-up is very annoying. You know, the fizzing and the popping...
I checked in the monitor's settings but the 'Degauss' option (which I assume means Auto-Degauss) just says 'On'. I tried toggling it but the screen just degauss-es and the option still says 'On'
An alternative way to stop auto-degauss, which I found online, was to do something to the parts inside the monitor, which I am VERY reluctant to do.
So I was wondering if there was some BIOS setting or some software or anything of that sort which can help me circumvent this problem. My objective here is to stop 'auto' degauss, not disable the entire degauss feature...actually, stopping only the noise would be perfect but I know that's not possible...or is it?
Hoping for a quick reply,
T4
Last edited by t4akawolf; 10 Dec 2010 at 04:11 AM..
| My System Specs |
| System Manufacturer/Model Number Intel DG31PR OS Windows 7 Ultimate x32 (UPDATE: Now x64!) CPU Intel(R) Core(TM)2 Duo CPU - E4600 @ 2.40GHz (2CPUs) Motherboard Intel DG31PR Memory 4096 RAM Graphics Card ATI Radeon HD 4350 1GB DDR2 Sound Card In-built Monitor(s) Displays Generic Pnp Monitor 1024x768 (32 bit) (85Hz) Screen Resolution 1024x768 Keyboard MS Standard PS/2 Keyboard Mouse MS HID Compliant Mouse PSU 450W Case Uhm, a normal one I guess Cooling No cooling thingamabobs installed Hard Drives [s]250GB HDD[/s] 1TB HDD + 150GB Ext + 4GB PD Internet Speed 256Kbps-768Kbps Other Info Creative 2.1 Speakers |
04 Dec 2010
|
#2 | | Windows 7 Ultimate x86 Massachusetts |
The option in the menu is not to turn it of but rather to manually degauss (if needed)
In all CRT monitors I came across, Degaussing is hardwired with the on/off switch (in some models it goes only active after a certain time has passed since you switched it off like 20 mins or so)
But I'm with you...I'm not a trained tv tech so I would rather jump backwards through a hoop than taking my Weller to the insides of a CRT monitor or any old TV.
Well perhaps someone more knowledgeable in that field can give you better news, sorry
-DG | My System Specs | | System Manufacturer/Model Number HP m8000n OS Windows 7 Ultimate x86 CPU DualCore AMD Athlon 64 X2, 2600 MHz 5200+ Motherboard Asus M2N68-LA (Narra) Memory Samsung 2GB DDR2 Graphics Card Onboard NVIDIA GeForce 6150SE nForce 430 Sound Card Onboard nVIDIA nForce 6100-430 (MCP61P) Monitor(s) Displays Westinghouse 19" LED Screen Resolution 1280x1024 Keyboard Logitech Classic KB 200 Mouse Standard HP opticle USB mouse PSU Stock (HP) Case Stock (HP) Cooling Stock Hard Drives SATA II Seagate Barracuda 500GB
USB II WD Elements 500GB
USB II WD My Book 1TB
USB II WD My Book 2TB |
04 Dec 2010
|
#3 | | Windows 7 Home Premium x64 SP1 Bay Area Peninsula |
The degauss is "hard wired", that is it does it's job at every power on. A thermister works as a timer of sorts. The degaussing coil is energized, and the thermistor heats up until it reaches a certain temperature, then it shuts off the relay to the degaussing coil.
The degaussing is an important thing as the CRT uses a deflection yoke, which is basically an electromagnet to deflect the electron beam to draw the picture on the face of the CRT. Since this is done electromagnetically, you must degauss the CRT to prevent "purity" issues caused by the magnetic field of the earth (no joke).
The earth is itself a big magnet. the North pole is actually the south pole of the magnet, and the South pole is the north pole of the magnet. Lines of magnetic flux flow between the poles, affected by the sun and the makeup of the earth itself.
If the CRT doesn't degauss, you will soon get colors in the corners, and eventually over the entire screen (think 60's flashback). You can see the same effect by moving a magnet (an unshielded speaker for instance) close to the CRT. Or if it is a large CRT, move it's orientation (turn it 90 degrees, etc).
PC CRT monitors also have a very fine pitched aperature, which can warp if not degaussed, causing incorrect beam landing (colors where they shouldn't be).
Long story short, let it degauss, it will only be for a moment, and it will save your CRT. It isn't something that can be turned off in most cases, as the manufacturer wouldn't want the CRT getting ruined prematurely. A Guy
Last edited by A Guy; 04 Dec 2010 at 09:29 PM..
| My System Specs | | OS Windows 7 Home Premium x64 SP1 CPU INTEL Core i5-750 Quad-Core 3.37GHz Motherboard ASUS P7P55D Memory KINGSTON 4GB (2 x 2GB) HyperX PC3-12800 DDR3 1600MHz CL8 Graphics Card MSI N240GT-MD1G/D5 GeForce GT 240 1GB 128-bit GDDR5 Monitor(s) Displays Samsung SyncMaster B2430H 24" Screen Resolution 1920 x 1080 PSU ANTEC TruePower New TP-550, 80 PLUS, 550W Case ANTEC Three Hundred Illusion Cooling COOLER MASTER Hyper 212 Plus, 4 x 120mm 1 x 140mm Noctua's Hard Drives Intel X25M Gen2 80GB, SEAGATE 500GB Barracudaź 7200.12, SATA 3 Gb/s, 7200 RPM, 16MB cache Internet Speed 20 + Mbps Antivirus Avast Browser Opera |
05 Dec 2010
|
#4 | | |
Get an LCD? Just saying... | My System Specs | | System Manufacturer/Model Number Alienware Aurora ALX R4 OS Windows 7 x64 (SP1) CPU Intel Core i7-3930K (3.2GHz, Turbo 4GHz) Motherboard Alienware Aurora-R4 x79 Memory 4x Samsung 4GB PC3-12800 DDR3 (16GB 1600MHz) Graphics Card Nvidia Geforce GTX 690 (Stock) Sound Card RealTek Integrated Audio Monitor(s) Displays Dell UltraSharp U3011 Screen Resolution 2560x1600 Other Info Dell Inspiron Mini 10v (Intel Atom N270 1.6 GHz; 1GB; Windows 7 Ultimate) |
05 Dec 2010
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#5 | | Windows 7 Ultimate AMD64 Sydney, Nova Scotia |
You don't want to disable it. I have one that the degauss only works maybe once for every three times I turn on the monitor. When it doesn't work the CRT is unusable, the colors are way off and washed out. I have to turn it back off and on again and hope it works. This monitor will be going to the re-cycler in the very near future. | My System Specs | | Computer type PC/Desktop System Manufacturer/Model Number Home Built OS Windows 7 Ultimate AMD64 CPU AMD Phenom II X4 980 Black Edition Deneb 3.7GHz Motherboard Asus M4N68T-M V2 ”ATX Motherboard Memory 8GB 4GBx2 Kingston PC10600 DDR3 1333 Memory Graphics Card BFG NVIDIA Geforce 220GT 1 Gig DDR2 PCIe Sound Card VIA VT1708s High Definition Audio 8-channel Onboard Monitor(s) Displays 2 x 19" I-INC AG191D TFT Flat Panel Screen Resolution 1280x1024 x 2 Keyboard Logitech Internet 600 Mouse Logitech Wireless Trackman Wheel PSU Retail Plus 465 Watt Case Power Up Black ATX Mid-Tower Case Cooling Stock heatsink and fan Hard Drives 500 Gig WesternDigital SATA-300 Drive Internet Speed 80 Mbps Down 30 Mbps Up Antivirus Microsoft Security Essentials Browser Internet Explorer 10 Other Info HP DVD1040e Lightscribe - External USB2 |
07 Dec 2010
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#6 | | Windows 7 Ultimate x32 (UPDATE: Now x64!) Visakhapatnam, India |
Hmm, thanks to everyone for replying. I guess I'll just have to bear with it.
Oh btw, do LCDs need degaussing too?? If they do, do they make as much noise? | My System Specs | | System Manufacturer/Model Number Intel DG31PR OS Windows 7 Ultimate x32 (UPDATE: Now x64!) CPU Intel(R) Core(TM)2 Duo CPU - E4600 @ 2.40GHz (2CPUs) Motherboard Intel DG31PR Memory 4096 RAM Graphics Card ATI Radeon HD 4350 1GB DDR2 Sound Card In-built Monitor(s) Displays Generic Pnp Monitor 1024x768 (32 bit) (85Hz) Screen Resolution 1024x768 Keyboard MS Standard PS/2 Keyboard Mouse MS HID Compliant Mouse PSU 450W Case Uhm, a normal one I guess Cooling No cooling thingamabobs installed Hard Drives [s]250GB HDD[/s] 1TB HDD + 150GB Ext + 4GB PD Internet Speed 256Kbps-768Kbps Other Info Creative 2.1 Speakers |
07 Dec 2010
|
#7 | | Windows7 Pro 64bit SP-1; Windows XP Pro 32bit Grafton,IL |
My Samsung doesn't make any noise.
No picture tube on LED/LCD screens. No degaussing. 
Mike | My System Specs | | System Manufacturer/Model Number Hopalong/ Godzilla OS Windows7 Pro 64bit SP-1; Windows XP Pro 32bit CPU Intel Core i7-870 Lynnfield 2.93GHz LGA 1156 95W Quad-Core Motherboard ASUS P7P55D-E PRO Memory 8GB@1400MHz Crucial Ballistix DDR3-1600 4x2GB Graphics Card ASUS ENGTX460 DirectCU/2DI/1GD5 1GB 256-bit GDDR5 Sound Card VIA Onboard Monitor(s) Displays Asus VS248H-P 24"; Samsung SyncMaster 941BW 19"ws Screen Resolution 1920x1080; 1440x900 Keyboard Logitech K-320 Mouse Kensington PSU COOLER MASTER Silent Pro RS850-AMBAJ3-US 850W Modular Case COOLER MASTER HAF 932 RC-932-KKN5-GP Black Cooling Scythe "Mugen-2 Rev.B" (2 ScytheKaze-Jyuni PWM fans) Hard Drives Samsung 830 120GB SSD
Intel 320 120GB SSD
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10 Dec 2010
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#8 | | Windows 7 Ultimate x32 (UPDATE: Now x64!) Visakhapatnam, India |

Quote: Originally Posted by Hopalong X My Samsung doesn't make any noise.
No picture tube on LED/LCD screens. No degaussing. 
Mike Oh ok, cool. | My System Specs | | System Manufacturer/Model Number Intel DG31PR OS Windows 7 Ultimate x32 (UPDATE: Now x64!) CPU Intel(R) Core(TM)2 Duo CPU - E4600 @ 2.40GHz (2CPUs) Motherboard Intel DG31PR Memory 4096 RAM Graphics Card ATI Radeon HD 4350 1GB DDR2 Sound Card In-built Monitor(s) Displays Generic Pnp Monitor 1024x768 (32 bit) (85Hz) Screen Resolution 1024x768 Keyboard MS Standard PS/2 Keyboard Mouse MS HID Compliant Mouse PSU 450W Case Uhm, a normal one I guess Cooling No cooling thingamabobs installed Hard Drives [s]250GB HDD[/s] 1TB HDD + 150GB Ext + 4GB PD Internet Speed 256Kbps-768Kbps Other Info Creative 2.1 Speakers Can auto-degauss be disabled via BIOS or s/w? problems? All times are GMT -5. The time now is 12:03 AM. | |