Help - Lights and screen are flashing--won't shut down

Hi:
I'm pretty certain this PB Ti has seen its last day. The last time I started it up, it didn't start, but kept spinning (the hard drive) up and down. Now, it won't shut down. Even a force shutdown won't kill it. If there is any power to the computer at all, it will spin a little and kick the fan on and off, and do this over and over all the while the power light, caps lock light, and the screen light flicker and the screen itself flickers between some light to off. Even the adapter light on the back flickers orange and sometimes between orange and green.
It doesn't look good. I've removed the battery. It has been without power at all for a few weeks now, and I just plugged it in, and it started flickering immediately with a few spin up sounds and the fan kicking on and off.
Other than the noise of the drive and the fan, there are no other sounds. No bells or pings. I can't get a boot CD into the drive.
Is this a logic board issue? I'd love to hear that it is bad ram, or something.
Any suggestions would be appreciated.

Hi j,
Welcome to Apple Discussions.
Wow, never heard of a case like this one. Sounds like either LB is really messed up, or there's a short circuit somewhere. There's no reason not to check the RAM first: try one module at a time in one slot, then repeat in the other slot. That should answer that question.
My next troubleshooting would be to flip open the keyboard and snug up any loose screws and look for any potential short circuits and and carefully check all the cable connections you can get at. Also look for blackened areas where it looks like something has fried. If you see that, you may have your answer. Repeat process with bottom cover removed. Also try booting with bottom cover removed. Report back with results.
One other thought: periodically someone will post about a stuck power button. Push that around a bit in different directions and see if that has any effect.

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Interval Since Last Panic Report: 107776 sec
Panics Since Last Report:          30
Anonymous UUID:                    D5C76789-6CC4-5EF1-9A93-83B28D9D4EE6
Thu Dec 20 05:57:18 2012
panic(cpu 0 caller 0xffffff80106b7bd5): Kernel trap at 0xffffff801070fd84, type 14=page fault, registers:
CR0: 0x000000008001003b, CR2: 0x00000000000000e0, CR3: 0x0000000011f3d000, CR4: 0x0000000000000660
RAX: 0xffffff8022a91008, RBX: 0x0000000000000000, RCX: 0x0000000000000000, RDX: 0x0000000000000002
RSP: 0xffffff80f8cdbb20, RBP: 0xffffff80f8cdbb20, RSI: 0x0000000000000001, RDI: 0x0000000000000000
R8: 0xffffff8010ae6f3f, R9: 0xffffff801399ae90, R10: 0xffffff801d357000, R11: 0x00000000ffffff00
R12: 0x0000000000000000, R13: 0xffffff8022c723e0, R14: 0xffffff8022a91008, R15: 0x0000000000000002
RFL: 0x0000000000010246, RIP: 0xffffff801070fd84, CS: 0x0000000000000008, SS: 0x0000000000000010
Fault CR2: 0x00000000000000e0, Error code: 0x0000000000000000, Fault CPU: 0x0
Backtrace (CPU 0), Frame : Return Address
0xffffff80f8cdb7c0 : 0xffffff801061d626
0xffffff80f8cdb830 : 0xffffff80106b7bd5
0xffffff80f8cdba00 : 0xffffff80106ce4ed
0xffffff80f8cdba20 : 0xffffff801070fd84
0xffffff80f8cdbb20 : 0xffffff8010910152
0xffffff80f8cdbb60 : 0xffffff80109156d1
0xffffff80f8cdbb90 : 0xffffff8010915618
0xffffff80f8cdbc00 : 0xffffff80109189fc
0xffffff80f8cdbc30 : 0xffffff80107120af
0xffffff80f8cdbc60 : 0xffffff80106f18d3
0xffffff80f8cdbcb0 : 0xffffff80106f1021
0xffffff80f8cdbcf0 : 0xffffff80106f151a
0xffffff80f8cdbd70 : 0xffffff8010905cfa
0xffffff80f8cdbdd0 : 0xffffff80106f9ff2
0xffffff80f8cdbe20 : 0xffffff80106f296a
0xffffff80f8cdbe60 : 0xffffff80109650ee
0xffffff80f8cdbed0 : 0xffffff8010971b52
0xffffff80f8cdbf50 : 0xffffff80109e182a
0xffffff80f8cdbfb0 : 0xffffff80106ced33
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Boot args: serverperfmode=1
Mac OS version:
12C60
Kernel version:
Darwin Kernel Version 12.2.0: Sat Aug 25 00:48:52 PDT 2012; root:xnu-2050.18.24~1/RELEASE_X86_64
Kernel UUID: 69A5853F-375A-3EF4-9247-478FD0247333
Kernel slide:     0x0000000010400000
Kernel text base: 0xffffff8010600000
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System uptime in nanoseconds: 1018159461778
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com.apple.nke.l2tp          1.8
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com.apple.driver.AudioAUUC          1.60
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com.apple.driver.AppleHDA          2.3.1f2
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com.apple.driver.ApplePlatformEnabler          2.0.5d4
com.apple.iokit.BroadcomBluetoothHCIControllerUSBTransport          4.0.9f33
com.apple.iokit.IOUserEthernet          1.0.0d1
com.apple.Dont_Steal_Mac_OS_X          7.0.0
com.apple.driver.ApplePolicyControl          3.2.11
com.apple.driver.ACPI_SMC_PlatformPlugin          1.0.0
com.apple.driver.AppleLPC          1.6.0
com.apple.driver.AppleUpstreamUserClient          3.5.10
com.apple.driver.AppleMCCSControl          1.0.33
com.apple.GeForce          8.0.0
com.apple.filesystems.autofs          3.0
com.apple.driver.AppleIRController          320.15
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
com.apple.BootCache          34
com.apple.driver.XsanFilter          404
com.apple.iokit.IOAHCIBlockStorage          2.2.2
com.apple.driver.AppleAHCIPort          2.4.1
com.apple.nvenet          2.0.19
com.apple.driver.AppleUSBOHCI          5.2.5
com.apple.driver.AppleFWOHCI          4.9.6
com.apple.driver.AirPortBrcm43224          600.36.17
com.apple.driver.AppleUSBHub          5.2.5
com.apple.driver.AppleUSBEHCI          5.4.0
com.apple.driver.AppleEFINVRAM          1.6.1
com.apple.driver.AppleRTC          1.5
com.apple.driver.AppleHPET          1.7
com.apple.driver.AppleACPIButtons          1.6
com.apple.driver.AppleSMBIOS          1.9
com.apple.driver.AppleACPIEC          1.6
com.apple.driver.AppleAPIC          1.6
com.apple.driver.AppleIntelCPUPowerManagementClient          196.0.0
com.apple.nke.applicationfirewall          4.0.39
com.apple.security.quarantine          2
com.apple.driver.AppleIntelCPUPowerManagement          196.0.0
com.apple.driver.IOBluetoothHIDDriver          4.0.9f33
com.apple.driver.AppleMultitouchDriver          235.28
com.apple.nke.ppp          1.8
com.apple.iokit.IOSerialFamily          10.0.6
com.apple.driver.DspFuncLib          2.3.1f2
com.apple.iokit.IOAudioFamily          1.8.9fc10
com.apple.kext.OSvKernDSPLib          1.6
com.apple.iokit.AppleBluetoothHCIControllerUSBTransport          4.0.9f33
com.apple.iokit.IOFireWireIP          2.2.5
com.apple.driver.AppleHDAController          2.3.1f2
com.apple.iokit.IOHDAFamily          2.3.1f2
com.apple.iokit.IOSurface          86.0.3
com.apple.iokit.IOBluetoothFamily          4.0.9f33
com.apple.driver.AppleGraphicsControl          3.2.11
com.apple.driver.AppleSMC          3.1.4d2
com.apple.driver.IOPlatformPluginLegacy          1.0.0
com.apple.driver.IOPlatformPluginFamily          5.2.0d16
com.apple.driver.AppleSMBusController          1.0.10d0
com.apple.nvidia.nv50hal          8.0.0
com.apple.NVDAResman          8.0.0
com.apple.iokit.IONDRVSupport          2.3.5
com.apple.iokit.IOGraphicsFamily          2.3.5
com.apple.kext.triggers          1.0
com.apple.iokit.IOSCSIArchitectureModelFamily          3.5.1
com.apple.driver.AppleUSBHIDKeyboard          165.5
com.apple.driver.AppleHIDKeyboard          165.5
com.apple.iokit.IOUSBHIDDriver          5.2.5
com.apple.driver.AppleUSBMergeNub          5.2.5
com.apple.driver.AppleUSBComposite          5.2.5
com.apple.iokit.IOAHCIFamily          2.2.1
com.apple.iokit.IOFireWireFamily          4.5.5
com.apple.iokit.IO80211Family          500.15
com.apple.iokit.IONetworkingFamily          3.0
com.apple.iokit.IOUSBUserClient          5.2.5
com.apple.driver.NVSMU          2.2.9
com.apple.iokit.IOUSBFamily          5.4.0
com.apple.driver.AppleEFIRuntime          1.6.1
com.apple.iokit.IOHIDFamily          1.8.0
com.apple.iokit.IOSMBusFamily          1.1
com.apple.security.sandbox          220
com.apple.kext.AppleMatch          1.0.0d1
com.apple.security.TMSafetyNet          7
com.apple.driver.DiskImages          344
com.apple.iokit.IOStorageFamily          1.8
com.apple.driver.AppleKeyStore          28.21
com.apple.driver.AppleACPIPlatform          1.6
com.apple.iokit.IOPCIFamily          2.7.2
com.apple.iokit.IOACPIFamily          1.4
com.apple.kec.corecrypto          1.0
Model: Macmini3,1, BootROM MM31.00AD.B00, 2 processors, Intel Core 2 Duo, 2.53 GHz, 8 GB, SMC 1.35f1
Graphics: NVIDIA GeForce 9400, NVIDIA GeForce 9400, PCI, 256 MB
Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1067 MHz, 0x857F, 0x483634353155363446373036364700000000
Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1067 MHz, 0x857F, 0x483634353155363446373036364700000000
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x90), Broadcom BCM43xx 1.0 (5.10.131.36.16)
Bluetooth: Version 4.0.9f33 10885, 2 service, 18 devices, 2 incoming serial ports
Network Service: Wi-Fi, AirPort, en1
Serial ATA Device: Hitachi HTS545050B9SA02, 500,11 GB
Serial ATA Device: OCZ-VERTEX3, 240,06 GB
USB Device: Keyboard Hub, apple_vendor_id, 0x1006, 0x24100000 / 2
USB Device: Apple Keyboard, apple_vendor_id, 0x0250, 0x24120000 / 3
USB Device: EyeTV Hybrid, 0x0fd9, 0x0018, 0x26200000 / 2
USB Device: IR Receiver, apple_vendor_id, 0x8242, 0x04500000 / 2
USB Device: BRCM2046 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0x06100000 / 2
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8216, 0x06110000 / 3

Reboot while holding down the command-r keys so the Mac boots to the Recovery Disk. From there select Disk Utility and then run Repair Disk.

Help - Lights and screen are flashing--won't shut down

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