MacBook(2009) disables USB ports!

I use a cooling pad for my 2009 macbook. All of a sudden now when I plug it in to my USB port it tells me the USB port is drawing too much power and it disabled it. (btw: I have it charging and it's at 99%)

The built in USB ports can only supply a limited amount of power. Try to draw any more than that and the Macbook protects itself by turning the ports off.
The way around this problem is to use a self powered USB hub.
You plug the hub into a wall outlet for power, and connect it to the Macbook with a USB cable for data. All your USB devices can now be plugged into the hub, and whatever power they need will be supplied by the hub not the Mac.
Examples of powered USB hubs:
http://usb-hub-review.toptenreviews.com

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    Oct 18 09:01:04 hades kernel: [ 1.436513] [<ffffffff81273d5d>] ? intel_idle+0xad/0x120
    Oct 18 09:01:04 hades kernel: [ 1.436516] [<ffffffff81313e3d>] cpuidle_idle_call+0x9d/0x350
    Oct 18 09:01:04 hades kernel: [ 1.436519] [<ffffffff8100a21a>] cpu_idle+0xba/0x100
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    Oct 18 09:01:04 hades kernel: [ 1.436523] [<ffffffff81748c23>] start_kernel+0x3de/0x3eb
    Oct 18 09:01:04 hades kernel: [ 1.436525] [<ffffffff81748347>] x86_64_start_reservations+0x132/0x136
    Oct 18 09:01:04 hades kernel: [ 1.436527] [<ffffffff81748140>] ? early_idt_handlers+0x140/0x140
    Oct 18 09:01:04 hades kernel: [ 1.436529] [<ffffffff8174844d>] x86_64_start_kernel+0x102/0x111
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    Oct 18 09:01:04 hades kernel: [ 15.963959] <IRQ> [<ffffffff810c147a>] __report_bad_irq+0x3a/0xd0
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    Oct 18 09:01:04 hades kernel: [ 15.963984] [<ffffffff8100d9f2>] handle_irq+0x22/0x40
    Oct 18 09:01:04 hades kernel: [ 15.963986] [<ffffffff813f66ea>] do_IRQ+0x5a/0xe0
    Oct 18 09:01:04 hades kernel: [ 15.963988] [<ffffffff813f43d3>] common_interrupt+0x13/0x13
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    Oct 18 09:01:04 hades kernel: [ 15.963994] [<ffffffff81273d5d>] ? intel_idle+0xad/0x120
    Oct 18 09:01:04 hades kernel: [ 15.963997] [<ffffffff81313e3d>] cpuidle_idle_call+0x9d/0x350
    Oct 18 09:01:04 hades kernel: [ 15.964000] [<ffffffff8100a21a>] cpu_idle+0xba/0x100
    Oct 18 09:01:04 hades kernel: [ 15.964002] [<ffffffff813d1f52>] rest_init+0x96/0xa4
    Oct 18 09:01:04 hades kernel: [ 15.964004] [<ffffffff81748c23>] start_kernel+0x3de/0x3eb
    Oct 18 09:01:04 hades kernel: [ 15.964006] [<ffffffff81748347>] x86_64_start_reservations+0x132/0x136
    Oct 18 09:01:04 hades kernel: [ 15.964008] [<ffffffff81748140>] ? early_idt_handlers+0x140/0x140
    Oct 18 09:01:04 hades kernel: [ 15.964009] [<ffffffff8174844d>] x86_64_start_kernel+0x102/0x111
    Oct 18 09:01:04 hades kernel: [ 15.964010] handlers:
    Oct 18 09:01:04 hades kernel: [ 15.964016] [<ffffffffa00064f0>] usb_hcd_irq
    Oct 18 09:01:04 hades kernel: [ 15.964018] [<ffffffffa02a4220>] mei_interrupt_quick_handler threaded [<ffffffffa02a4570>] mei_interrupt_thread_handler
    Oct 18 09:01:04 hades kernel: [ 15.964021] Disabling IRQ #16
    Several output information:
    lspci:
    00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
    /proc/interrupts:
    CPU0 CPU1 CPU2 CPU3
    16: 1687314878 0 0 0 IO-APIC-fasteoi ehci_hcd:usb1, mei
    Kernel Log mei info:
    Oct 18 09:01:04 hades kernel: [ 15.464667] mei: module is from the staging directory, the quality is unknown, you have been warned.
    Oct 18 09:01:04 hades kernel: [ 15.464922] mei 0000:00:16.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
    Oct 18 09:01:04 hades kernel: [ 15.464928] mei 0000:00:16.0: setting latency timer to 64
    Kernel Log ehci info:
    Oct 18 09:01:04 hades kernel: [ 0.999944] ehci_hcd 0000:00:1d.0: PCI INT A -> GSI 23 (level, low) -> IRQ 23
    Oct 18 09:01:04 hades kernel: [ 0.999964] ehci_hcd 0000:00:1d.0: setting latency timer to 64
    Oct 18 09:01:04 hades kernel: [ 0.999966] ehci_hcd 0000:00:1d.0: EHCI Host Controller
    Oct 18 09:01:04 hades kernel: [ 0.999971] ehci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 4
    Oct 18 09:01:04 hades kernel: [ 0.999996] ehci_hcd 0000:00:1d.0: debug port 2
    Oct 18 09:01:04 hades kernel: [ 1.003885] ehci_hcd 0000:00:1d.0: cache line size of 64 is not supported
    Oct 18 09:01:04 hades kernel: [ 1.003897] ehci_hcd 0000:00:1d.0: irq 23, io mem 0xf0426800
    Oct 18 09:01:04 hades kernel: [ 1.016476] ehci_hcd 0000:00:1d.0: USB 2.0 started, EHCI 1.00
    Module Info:
    mei:
    filename: /lib/modules/3.0-ARCH/kernel/drivers/staging/mei/mei.ko.gz
    version: 7.1.20.1
    description: Intel(R) Management Engine Interface
    author: Intel Corporation
    srcversion: 0A1192D3177950D60ACC4F4
    staging: Y
    vermagic: 3.0-ARCH SMP preempt mod_unload
    parm: watchdog_timeout:Intel(R) AMT Watchdog timeout value in seconds. (default=120, disable=0) (ushort)
    ehci_hcd:
    filename: /lib/modules/3.0-ARCH/kernel/drivers/usb/host/ehci-hcd.ko.gz
    author: David Brownell
    description: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
    alias: pci:v*d*sv*sd*bc0Csc03i20*
    depends: usbcore
    vermagic: 3.0-ARCH SMP preempt mod_unload
    parm: log2_irq_thresh:log2 IRQ latency, 1-64 microframes (int)
    parm: park:park setting; 1-3 back-to-back async packets (uint)
    parm: ignore_oc:ignore bogus hardware overcurrent indications (bool)
    parm: hird:host initiated resume duration, +1 for each 75us
    I'm using the DP67BG mainboard from intel.
    Please let me know, if you need additional information.
    Greetings,
    kinky
    Edit:
    Forgot to mention that I already tried following kernel parameters (acpi=routeirq, noirqdebug, pci=msi, irqpoll, irqfixup) of which only noirqdebug worked (as to say that IRQ #16 was not disables, so my keyboard did work), but which caused a decrease in graphics performance (low fps rates (shells refresh slowly), tearing).
    Last edited by kinky (2011-11-07 20:44:48)

    ok, there are only 2 devices using IRQ 16
    00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
    00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 05) (prog-if 20 [EHCI])
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    00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 05) (prog-if 20 [EHCI])
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