Windows locks up when using cold cathode light
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Thread: Windows locks up when using cold cathode light

  1. #1
    Join Date
    Jan 2002
    Posts
    44

    Question Windows locks up when using cold cathode light

    I have Lian Li PC-7 and have the rocker switch mounted on a PCI slot in the back. I noticed that my computer locks up if I switch the light on. It doesn't happen if I boot up the computer with the light switched already in the on position, but only if the computer is already in use and then turn the light on.

    I mean what's the use of a rocker switch if I can't use it. Could it be the PSU? It's 420w, though.

    I can turn the light off, but it seems to lock up if I switch it on. Anybody have any idea on why this is?
    Epox 8RDA+ 1.1 with copper Iceberq
    Athlon XP-M 2600+ (oc'd @ 2.5Ghz)
    Corsair DDR Twin XMS3200 Platinum (Dual mode)
    2-2-2-5
    BIOS 3507
    Thermaltake Volcano 7+
    Radeon AIW X800XT
    Maxtor 7200 30G X 2
    Lite-on Black 16x DVD (window & led modded)
    Lite-on Black 1693s DVDRW
    Lian Li PC-7 (side, top and bay window and led modded)
    Vantec Nexus NXP201 Controller
    Cold cathode illumination (blue)
    Okia 420w PSU (window/fan modded)
    XP SP2

  2. #2
    Join Date
    Dec 1998
    Location
    Grand Haven, Michigan, USA
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    11,332
    I got that if I plugged a fan in. It is likely causing a spike in the power and the system does not like it. Do not use the switch. You should always leave the lights on anyways... it scares the gremlins away!
    AMD Phenom II x4 945 3Ghz | ASUS M4A77TD | 2X WD 1TB SATA 2 hard drive | 2x2GB Corsair XMS3 | nVidia GeForce 8800 GTS | ATI TV Wonder Theater Pro 550 | Antec P-160 case | Antec 650w Earth Watts | LG Blu-ray Super Drive | LG DVD RW | Windows 7 Pro

  3. #3
    Join Date
    Aug 2000
    Location
    Chesapeake, VA, USA
    Posts
    3,463
    I had the same problem when I tried to plug a relay into the 12V bus on my PC while it was going- the motherboard detected a power spike (or dangerous drop, more likely) and automatically initiated an emergency shut-down; my PC went down like a rock and I had to cycle the main PSU power to reboot. Works fine if it boots with it plugged in, tho

    The moral of the story? Don't plug/unplug things with significant current draw while your PC is on.
    Pentium IV 2.4C Northwood- M0 stepping @ 3.2GHz HT
    Air Cooled w/ SP-94 heatpipe & 92mm Vantex Tornado at 45C
    4x256=1gb dual-channel 2-3-3-6 OCZ PC800DRAM @ 890MHz 3-4-4-8
    MSI Neo2-PLS w/I865PE & SATA @ 4x267=1068MHz
    BFG GeForceFX 5900@485/967MHz = 6284 3DMark2003s; dual-head 21" CRT & 19" LCD

  4. #4
    Join Date
    Jan 2002
    Posts
    44
    Thanks, Todd, and Grover. That's what I was thinking--the power draw thing. I usually don't use the switch at all, it's always in the on position. Just something I noticed. Thanks.
    Epox 8RDA+ 1.1 with copper Iceberq
    Athlon XP-M 2600+ (oc'd @ 2.5Ghz)
    Corsair DDR Twin XMS3200 Platinum (Dual mode)
    2-2-2-5
    BIOS 3507
    Thermaltake Volcano 7+
    Radeon AIW X800XT
    Maxtor 7200 30G X 2
    Lite-on Black 16x DVD (window & led modded)
    Lite-on Black 1693s DVDRW
    Lian Li PC-7 (side, top and bay window and led modded)
    Vantec Nexus NXP201 Controller
    Cold cathode illumination (blue)
    Okia 420w PSU (window/fan modded)
    XP SP2

  5. #5
    Join Date
    Jan 2002
    Posts
    6,334
    thats sort of crappy.... well a nice safety measure i guess but hell, i would probably find a better power supply, im sure some out the can handle on the fly hookups.....

  6. #6
    Join Date
    Jan 2002
    Posts
    6,334
    wait, todd's Antec does that too? oh, i see above its probably the motherboard cutting power.... my bad

  7. #7
    Join Date
    Aug 2000
    Location
    Chesapeake, VA, USA
    Posts
    3,463
    My mobo's power LED is green... but that time it turned RED and the power and reset buttons wouldn't work! scared the hell outa me until I cycled the power and is succesfully booted up to windows
    Pentium IV 2.4C Northwood- M0 stepping @ 3.2GHz HT
    Air Cooled w/ SP-94 heatpipe & 92mm Vantex Tornado at 45C
    4x256=1gb dual-channel 2-3-3-6 OCZ PC800DRAM @ 890MHz 3-4-4-8
    MSI Neo2-PLS w/I865PE & SATA @ 4x267=1068MHz
    BFG GeForceFX 5900@485/967MHz = 6284 3DMark2003s; dual-head 21" CRT & 19" LCD

  8. #8
    Join Date
    Jan 2002
    Posts
    6,334
    argh, i hate them scares... your heat just sinks and you think, yep no PC for a while!

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