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  1. January 18th, 2004 02:01 AM #1
    circuitslave
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    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
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    Lian Li PC-7 (side, top and bay window and led modded)
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    Cold cathode illumination (blue)
    Okia 420w PSU (window/fan modded)
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  2. January 18th, 2004 09:23 AM #2
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    Todd a
    Todd a is offline HWC Master
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    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!
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  3. January 18th, 2004 02:30 PM #3
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    grover
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    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.
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  4. January 19th, 2004 12:34 AM #4
    circuitslave
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    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
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  5. January 19th, 2004 06:23 PM #5
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    krupted
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    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.....

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  6. January 19th, 2004 06:24 PM #6
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    krupted
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    wait, todd's Antec does that too? oh, i see above its probably the motherboard cutting power.... my bad

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  7. January 19th, 2004 06:29 PM #7
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    grover
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    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
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  8. January 19th, 2004 06:36 PM #8
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    krupted
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    argh, i hate them scares... your heat just sinks and you think, yep no PC for a while!

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