Up for the Challenge? A Real Mystery (Fried Power Supply?)
I didn't know if this is the appropriate place to post this, but here goes.
I have a file server at home that runs Arch/KDE. It used to be a desktop/gaming machine, but I don't really play games on my computer anymore so I re-purposed it as a file server (SSH, Unison). It has a Geforce 9800GT video card and a 610watt continuous power supply. (No onboard video, requires a video card to function).
Yesterday I helped a client with his PC. I was trying to figure out if his issue was his video card or his motherboard, so I shut down the server, unplugged it, and removed the video card and put it in his PC to test (since my video card is known-good). After testing, I put it back in my server, connected the power cable to the video card, secured it with a screw, and continued working on my server.
About a half hour later, I noticed a really foul stench coming from my PC. I checked all the temps (CPU, video card, etc) and all were in range. I even tried a video card from a different PC and it still stunk. I traced the smell to my power supply, which stunk really bad. (Smells like a burned up motor). The Fan in the power supply turns just fine but it stinks! I unplugged it and stopped using it.
The server works absolutely fine (runs good, boots up fine, graphics works great, everything works) but it smells so bad you can smell it quite some distance from the tower so I'm not comfortable leaving it on.
Here's the mystery:
Is it possible that it's all just a coincidence, that the power supply decided to die coincidentally after testing the video card in another PC, or could testing the video card in a different PC have caused the power supply to burn up? The problem is definitely the power supply, but what I'm wrestling with is the fact that the server has been on for probably several weeks straight with no issue, and it decides to quit immediately after testing the video card in another PC. I know the coincidence is possible but it seems like a stretch.
spctrl wrote:
It is probably rather simple.. I've had the same general thing happen many times. When you turn on your machine the hardware demands a lot more power compared to when it is just running. Disks and fans need to spin up and so forth. So this PSU might have been fine if you had just kept it powered on, it would never have happened. Having said that it's bad that such a powerful unit dies, but I've come to accept that most power supplies are garbage when it comes to reliability.. Doesn't matter if you spend extra $$$ on a "good" brand or if you stick to cheaper ones - they just suck in general..
If I had the money I'd buy a UPS to remove power surges and such, but until then I will have to buy a new PSU every second year I guess.
That makes sense. I emailed the company to get an RMA yesterday, and have not heard back yet. I don't have the money to buy a new one so it really depends on them replacing it under the warranty. I'm sure I'll be without the server up to a month until it's fixed.
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for the last several days I have experienced the dreaded wite screen of death upon power up of my 2008 Mac Pro 2.8,
Screen will hang white - no apple logo - when I hit the power button resart - the mac power light does not go out, but "clicks" and the mac will restart.
I get the white apple logo screen and then some terminal script (about 20-25 lines) that lasts for a dew seconds - then an apple message appears telling me that my computer needs to be restarted due to an error - press a key or wat.... this will cycle continuously.
If I power down and boot in safe mode - the computer seems to start up - with a crash log.
Once I restart from safe mode - the mac seems to start fine and I am using it without issue - (of course until I power down and come back in the studio the following day...)
I am not familiar with crash logs - but here are the two most recent...
Interval Since Last Panic Report: 25449 sec
Panics Since Last Report: 1
Anonymous UUID: 68CEF3A2-4EFE-D602-DB91-4A773D0A413B
Wed Jul 31 21:26:23 2013
panic(cpu 2 caller 0xffffff801109e53b): "TLB invalidation IPI timeout: " "CPU(s) failed to respond to interrupts, unresponsive CPU bitmap: 0x80, NMIPI acks: orig: 0x0, now: 0x0"@/SourceCache/xnu/xnu-2050.24.15/osfmk/x86_64/pmap.c:2337
Backtrace (CPU 2), Frame : Return Address
0xffffff82f8cdbaa0 : 0xffffff801101d626
0xffffff82f8cdbb10 : 0xffffff801109e53b
0xffffff82f8cdbb90 : 0xffffff80110a2d50
0xffffff82f8cdbc50 : 0xffffff80110a3585
0xffffff82f8cdbca0 : 0xffffff801106720c
0xffffff82f8cdbd90 : 0xffffff801106b0e0
0xffffff82f8cdbdc0 : 0xffffff8011065bdf
0xffffff82f8cdbdf0 : 0xffffff8011402243
0xffffff82f8cdbe10 : 0xffffff8011464c0c
0xffffff82f8cdbe50 : 0xffffff80110943a3
0xffffff82f8cdbe80 : 0xffffff8011020b3d
0xffffff82f8cdbeb0 : 0xffffff8011010448
0xffffff82f8cdbf00 : 0xffffff801101961b
0xffffff82f8cdbf70 : 0xffffff80110a6536
0xffffff82f8cdbfb0 : 0xffffff80110ce9e3
BSD process name corresponding to current thread: powerd
Boot args: arch=x86_64
Mac OS version:
12E55
Kernel version:
Darwin Kernel Version 12.4.0: Wed May 1 17:57:12 PDT 2013; root:xnu-2050.24.15~1/RELEASE_X86_64
Kernel UUID: 896CB1E3-AB79-3DF1-B595-549DFFDF3D36
Kernel slide: 0x0000000010e00000
Kernel text base: 0xffffff8011000000
System model name: MacPro3,1 (Mac-F42C88C8)
System uptime in nanoseconds: 12797763977
last loaded kext at 11912907618: com.apple.driver.AppleUpstreamUserClient 3.5.10 (addr 0xffffff7f92a7b000, size 36864)
loaded kexts:
com.uaudio.driver.UAFWAudio 4.1.1 16344
com.motu.driver.USBMidiKext 1.6 49190
com.uaudio.driver.UAD2System 7.1.0
com.motu.driver.PCIAudio 1.6 57985
com.apple.driver.AppleUpstreamUserClient 3.5.10
com.apple.driver.AppleMCCSControl 1.1.11
com.apple.driver.AppleHDAHardwareConfigDriver 2.3.7fc4
com.apple.kext.AMDFramebuffer 8.1.2
com.apple.iokit.IOUserEthernet 1.0.0d1
com.apple.driver.AppleHDA 2.3.7fc4
com.apple.ATIRadeonX2000 8.1.2
com.apple.iokit.CSRBluetoothHCIControllerUSBTransport 4.1.4f2
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.ApplePolicyControl 3.4.5
com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0
com.apple.driver.AppleMCEDriver 1.1.9
com.apple.driver.AppleLPC 1.6.0
com.apple.driver.CSRHIDTransitionDriver 4.1.4f2
com.apple.driver.AppleFireWireStorage 3.1.7
com.apple.driver.initioFWBridge 3.1.7
com.apple.driver.IOFireWireSerialBusProtocolSansPhysicalUnit 3.1.7
com.apple.driver.LSI_FW_500 3.1.7
com.apple.driver.Oxford_Semi 3.1.7
com.apple.driver.StorageLynx 3.1.7
com.apple.driver.PioneerSuperDrive 3.1.7
com.apple.iokit.SCSITaskUserClient 3.5.5
com.apple.driver.AppleFileSystemDriver 3.0.1
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 2.3.1
com.apple.driver.AppleIntel8254XEthernet 3.1.1b1
com.apple.driver.AppleUSBHub 5.5.5
com.apple.driver.AppleAHCIPort 2.5.2
com.apple.driver.AppleIntelPIIXATA 2.5.1
com.apple.driver.AppleFWOHCI 4.9.6
com.apple.driver.AppleUSBEHCI 5.5.0
com.apple.driver.AppleUSBUHCI 5.2.5
com.apple.driver.AppleEFINVRAM 1.7
com.apple.driver.AppleACPIButtons 1.7
com.apple.driver.AppleRTC 1.5
com.apple.driver.AppleHPET 1.8
com.apple.driver.AppleSMBIOS 1.9
com.apple.driver.AppleACPIEC 1.7
com.apple.driver.AppleAPIC 1.6
com.apple.driver.AppleIntelCPUPowerManagementClient 196.0.0
com.apple.nke.applicationfirewall 4.0.39
com.apple.security.quarantine 2.1
com.apple.driver.AppleIntelCPUPowerManagement 196.0.0
com.apple.driver.AppleSMBusController 1.0.11d0
com.apple.driver.AppleUSBAudio 2.9.0f8
com.apple.iokit.IOSurface 86.0.4
com.apple.driver.DspFuncLib 2.3.7fc4
com.apple.iokit.IOBluetoothFamily 4.1.4f2
com.apple.iokit.AppleBluetoothHCIControllerUSBTransport 4.1.4f2
com.apple.iokit.IOFireWireIP 2.2.5
com.apple.driver.AppleGraphicsControl 3.4.5
com.apple.iokit.IONDRVSupport 2.3.7
com.apple.driver.IOPlatformPluginLegacy 1.0.0
com.apple.driver.AppleHDAController 2.3.7fc4
com.apple.iokit.IOHDAFamily 2.3.7fc4
com.apple.driver.AppleSMC 3.1.4d2
com.apple.driver.IOPlatformPluginFamily 5.3.0d51
com.apple.kext.AMD2600Controller 8.1.2
com.apple.kext.AMDSupport 8.1.2
com.apple.iokit.IOGraphicsFamily 2.3.7
com.apple.driver.AppleSMBusPCI 1.0.11d0
com.apple.iokit.IOAudioFamily 1.8.9fc11
com.apple.kext.OSvKernDSPLib 1.6
com.apple.driver.AppleUSBHIDKeyboard 170.2
com.apple.driver.AppleHIDKeyboard 170.2
com.apple.iokit.IOUSBHIDDriver 5.2.5
com.apple.driver.AppleUSBMergeNub 5.5.5
com.apple.iokit.IOSCSIBlockCommandsDevice 3.5.5
com.apple.iokit.IOUSBMassStorageClass 3.5.1
com.apple.driver.AppleUSBComposite 5.2.5
com.apple.iokit.IOFireWireSerialBusProtocolTransport 2.1.1
com.apple.iokit.IOFireWireSBP2 4.2.2
com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.5.5
com.apple.iokit.IOBDStorageFamily 1.7
com.apple.iokit.IODVDStorageFamily 1.7.1
com.apple.iokit.IOCDStorageFamily 1.7.1
com.apple.iokit.IOATAPIProtocolTransport 3.5.0
com.apple.iokit.IOSCSIArchitectureModelFamily 3.5.5
com.apple.iokit.IONetworkingFamily 3.0
com.apple.iokit.IOUSBUserClient 5.5.5
com.apple.iokit.IOAHCIFamily 2.3.1
com.apple.iokit.IOATAFamily 2.5.1
com.apple.iokit.IOFireWireFamily 4.5.5
com.apple.iokit.IOUSBFamily 5.6.0
com.apple.iokit.IOHIDFamily 1.8.1
com.apple.driver.AppleEFIRuntime 1.7
com.apple.iokit.IOSMBusFamily 1.1
com.apple.security.sandbox 220.3
com.apple.kext.AppleMatch 1.0.0d1
com.apple.security.TMSafetyNet 7
com.apple.driver.DiskImages 345
com.apple.iokit.IOStorageFamily 1.8
com.apple.driver.AppleKeyStore 28.21
com.apple.driver.AppleACPIPlatform 1.7
com.apple.iokit.IOPCIFamily 2.7.3
com.apple.iokit.IOACPIFamily 1.4
com.apple.kec.corecrypto 1.0
Model: MacPro3,1, BootROM MP31.006C.B05, 8 processors, Quad-Core Intel Xeon, 2.8 GHz, 26 GB, SMC 1.25f4
Graphics: ATI Radeon HD 2600 XT, ATI Radeon HD 2600, PCIe, 256 MB
Memory Module: DIMM Riser B/DIMM 1, 4 GB, DDR2 FB-DIMM, 800 MHz, 0x80AD, 0x00004D5035313241373243503444332D5336
Memory Module: DIMM Riser B/DIMM 2, 4 GB, DDR2 FB-DIMM, 800 MHz, 0x80AD, 0x00004D5035313241373243503444332D5336
Memory Module: DIMM Riser A/DIMM 1, 4 GB, DDR2 FB-DIMM, 800 MHz, 0x80AD, 0x00004D5035313241373243503444332D5336
Memory Module: DIMM Riser A/DIMM 2, 4 GB, DDR2 FB-DIMM, 800 MHz, 0x80AD, 0x00004D5035313241373243503444332D5336
Memory Module: DIMM Riser B/DIMM 3, 1 GB, DDR2 FB-DIMM, 800 MHz, 0x80AD, 0x48594D5035313241373243503844332D5335
Memory Module: DIMM Riser B/DIMM 4, 1 GB, DDR2 FB-DIMM, 800 MHz, 0x80AD, 0x48594D5035313241373243503844332D5335
Memory Module: DIMM Riser A/DIMM 3, 4 GB, DDR2 FB-DIMM, 800 MHz, 0x80AD, 0x00004D5035313241373243503444332D5336
Memory Module: DIMM Riser A/DIMM 4, 4 GB, DDR2 FB-DIMM, 800 MHz, 0x80AD, 0x00004D5035313241373243503444332D5336
Bluetooth: Version 4.1.4f2 12041, 2 service, 18 devices, 0 incoming serial ports
Network Service: Ethernet 1, Ethernet, en0
PCI Card: ATI Radeon HD 2600, sppci_displaycontroller, Slot-1
PCI Card: pci137a,5, sppci_audio, Slot-2@2,0,0
PCI Card: pci1a00,1, sppci_othermultimedia, Slot-4
PCI Card: pci1a00,1, sppci_othermultimedia, Slot-3
Serial ATA Device: WDC WD3200AAJS-41VWA1, 320.07 GB
Serial ATA Device: ST31000333AS, 1 TB
Serial ATA Device: ST31000528AS, 1 TB
Serial ATA Device: ST31000528AS, 1 TB
Parallel ATA Device: PIONEER DVD-RW DVR-112D
USB Device: USB2.0 Hub, 0x05e3 (Genesys Logic, Inc.), 0x0608, 0xfd300000 / 3
USB Device: USB2.0 Hub, 0x05e3 (Genesys Logic, Inc.), 0x0608, 0xfd340000 / 7
USB Device: MIDI Timepiece AV, 0x07fd, 0x0001, 0xfd343000 / 10
USB Device: iLok, 0x088e, 0x5036, 0xfd342000 / 9
USB Device: Keyboard Hub, apple_vendor_id, 0x1006, 0xfd341000 / 8
USB Device: Apple Keyboard, apple_vendor_id, 0x024f, 0xfd341200 / 14
USB Device: Keyboard Hub, apple_vendor_id, 0x1006, 0xfd330000 / 6
USB Device: Kensington Expert Mouse, 0x047d (Kensington), 0x1020, 0xfd333000 / 13
USB Device: Keystation Mini 32, 0x0a4d (Evolution Electronics Ltd.), 0x129d, 0xfd331000 / 12
USB Device: Apple Keyboard, apple_vendor_id, 0x0220, 0xfd332000 / 11
USB Device: iLok, 0x088e, 0x5036, 0xfd320000 / 5
USB Device: Eleven Rack, 0x0dba, 0xb011, 0xfd310000 / 4
USB Device: DISK 2.0, 0x090c (Silicon Motion, Inc. - Taiwan), 0x1000, 0xfd100000 / 2
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8206, 0x5d200000 / 3
USB Device: MIDISPORT 4x4 Anniv, 0x0763 (M-Audio), 0x1060, 0x5d100000 / 2
FireWire Device: built-in_hub, 800mbit_speed
FireWire Device: Oxford ATA Device 00, Glyph Technologies, 800mbit_speed
FireWire Device: Oxford ATA Device 00, Glyph Technologies, 800mbit_speed
Interval Since Last Panic Report: 301848 sec
Panics Since Last Report: 1
Anonymous UUID: 68CEF3A2-4EFE-D602-DB91-4A773D0A413B
Mon Jul 29 22:46:13 2013
panic(cpu 4 caller 0xffffff80028a20a6): "Spinlock acquisition timed out: lock=0xffffff8002ebebb0, lock owner thread=0xffffff80356dc340, current_thread: 0xffffff80364df000, lock owner active on CPU 0x0, current owner: 0xffffff80356dc340"@/SourceCache/xnu/xnu-2050.24.15/osfmk/i386/locks_i386.c:363
Backtrace (CPU 4), Frame : Return Address
0xffffff82ea652d70 : 0xffffff800281d626
0xffffff82ea652de0 : 0xffffff80028a20a6
0xffffff82ea652f10 : 0xffffff80028a199b
0xffffff82ea652f30 : 0xffffff8002865623
0xffffff82ea652fe0 : 0xffffff8002843df7
0xffffff82ea6530c0 : 0xffffff80028de568
0xffffff82ea653110 : 0xffffff80028de025
0xffffff82ea6531c0 : 0xffffff80028dd2db
0xffffff82ea6531f0 : 0xffffff80028dd487
0xffffff82ea653210 : 0xffffff8002ae7a26
0xffffff82ea653280 : 0xffffff8002b205ac
0xffffff82ea6532a0 : 0xffffff8002b21674
0xffffff82ea653340 : 0xffffff8002b1d600
0xffffff82ea653450 : 0xffffff8002b198fc
0xffffff82ea653500 : 0xffffff8002b196ca
0xffffff82ea653580 : 0xffffff800291366f
0xffffff82ea6535d0 : 0xffffff8002909d01
0xffffff82ea653610 : 0xffffff8002910a5d
0xffffff82ea653670 : 0xffffff8002910580
0xffffff82ea6536e0 : 0xffffff80028f44cc
0xffffff82ea653a40 : 0xffffff8002b40d3a
0xffffff82ea653aa0 : 0xffffff80028f535e
0xffffff82ea653af0 : 0xffffff800290905e
0xffffff82ea653b90 : 0xffffff80028fb839
0xffffff82ea653c40 : 0xffffff80028fc004
0xffffff82ea653f50 : 0xffffff8002be16aa
0xffffff82ea653fb0 : 0xffffff80028ce9c3
BSD process name corresponding to current thread: revisiond
Boot args: arch=x86_64
Mac OS version:
12E55
Kernel version:
Darwin Kernel Version 12.4.0: Wed May 1 17:57:12 PDT 2013; root:xnu-2050.24.15~1/RELEASE_X86_64
Kernel UUID: 896CB1E3-AB79-3DF1-B595-549DFFDF3D36
Kernel slide: 0x0000000002600000
Kernel text base: 0xffffff8002800000
System model name: MacPro3,1 (Mac-F42C88C8)
System uptime in nanoseconds: 17103336694
last loaded kext at 15943261762: com.apple.driver.AppleHDAHardwareConfigDriver 2.3.7fc4 (addr 0xffffff7f844d3000, size 16384)
loaded kexts:
com.uaudio.driver.UAFWAudio 4.1.1 16344
com.motu.driver.USBMidiKext 1.6 49190
com.uaudio.driver.UAD2System 7.1.0
com.motu.driver.PCIAudio 1.6 57985
com.apple.driver.AppleHDAHardwareConfigDriver 2.3.7fc4
com.apple.iokit.CSRBluetoothHCIControllerUSBTransport 4.1.4f2
com.apple.driver.AppleHDA 2.3.7fc4
com.apple.iokit.IOUserEthernet 1.0.0d1
com.apple.driver.AppleUpstreamUserClient 3.5.10
com.apple.driver.AppleMCCSControl 1.1.11
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.kext.AMDFramebuffer 8.1.2
com.apple.driver.AppleMCEDriver 1.1.9
com.apple.driver.ApplePolicyControl 3.4.5
com.apple.ATIRadeonX2000 8.1.2
com.apple.driver.AppleLPC 1.6.0
com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0
com.apple.driver.CSRHIDTransitionDriver 4.1.4f2
com.apple.driver.AppleFireWireStorage 3.1.7
com.apple.driver.initioFWBridge 3.1.7
com.apple.driver.IOFireWireSerialBusProtocolSansPhysicalUnit 3.1.7
com.apple.driver.LSI_FW_500 3.1.7
com.apple.driver.Oxford_Semi 3.1.7
com.apple.driver.StorageLynx 3.1.7
com.apple.driver.PioneerSuperDrive 3.1.7
com.apple.iokit.SCSITaskUserClient 3.5.5
com.apple.driver.XsanFilter 404
com.apple.iokit.IOAHCIBlockStorage 2.3.1
com.apple.driver.AppleFileSystemDriver 3.0.1
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
com.apple.BootCache 34
com.apple.driver.AppleUSBHub 5.5.5
com.apple.driver.AppleIntel8254XEthernet 3.1.1b1
com.apple.driver.AppleFWOHCI 4.9.6
com.apple.driver.AppleAHCIPort 2.5.2
com.apple.driver.AppleIntelPIIXATA 2.5.1
com.apple.driver.AppleUSBEHCI 5.5.0
com.apple.driver.AppleUSBUHCI 5.2.5
com.apple.driver.AppleEFINVRAM 1.7
com.apple.driver.AppleACPIButtons 1.7
com.apple.driver.AppleRTC 1.5
com.apple.driver.AppleHPET 1.8
com.apple.driver.AppleSMBIOS 1.9
com.apple.driver.AppleACPIEC 1.7
com.apple.driver.AppleAPIC 1.6
com.apple.driver.AppleIntelCPUPowerManagementClient 196.0.0
com.apple.nke.applicationfirewall 4.0.39
com.apple.security.quarantine 2.1
com.apple.driver.AppleIntelCPUPowerManagement 196.0.0
com.apple.driver.AppleUSBAudiocom.uaudio.driver.UAFWAudio 4.1.1 16344
com.motu.driver.USBMidiKext 1.6 49190
com.uaudio.driver.UAD2System 7.1.0
com.motu.driver.PCIAudio 1.6 57985
Remove the third party uaudio and motu drivers then restart your Mac.
Once I restart from safe mode - the mac seems to start fine and I am using it without issue
Safe Mode only loads required kernel extensions which is why Safe Mode works, "without issue" ... -
"power dial" mystery and power supply
1. So it has a power dial with 3 settings, but anyone can give me real info (non of that for dummies answers) about what does the power dial do? does it change what settings, disconnets some of the 4 cores? limits what etc'?
2. what power supply does it have? I think I saw 250W in one place, that makes no sense since at that level, one cannot upgrade the graphic card to even an envidia 8600 level.
any info?Hi csmba, welcome to the forum,
unfortunately you haven't included which system you have.
If you have a K100 series, which I suspect then;
1) this link should hopefully provide more information for you. (Basically a manual switch for "speed stepping" )
2) according to this site, it can have a 280W or 400W.
Regards
Andy ______________________________________
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PepperonI blog -
Can I use the iPod Nano cable and AC power supply with the iPhone?
Just purchased my iPhone 3G. Phone was in my pocket and the AT&T clerk neglected to put the box with the computer cable in the bag with the other accessories.
Until I can pick it up, can I use my iPod Nano cable? The plug seems the same size but I don't want to break anything.
Also, there was no power supply in the box due to the recall. Can I use the iPod AC power supply I bought for the iPod? It is the white brick about 3" by 3" by 1" with a USB socket in the side.
Thank you for helping me with my start-up glitches.Ps. When you do get the accessories, look for a green dot (on the side where the prongs of the plug come out). If there, fine; if not, your adapter is subject to the recently announced recall of ultracompact USB adapters.
-
The use of WS-CAC-6000W power supply
We are replacing the entire network in a refinery, using more than 100 Cisco switches.
I’d appreciate your help on a specific issue
1-Condition:
There are two supplies WS-CAC-6000W for the VS-C6513E-SUP2T
Each supply is connected to two 220VAC power inputs
Each 220VAC input of a power supply connects from distinct electrical panels
2-Fail scenario:
What happens if an electrical panel is off ?
3-Conclusion
The data sheet says that if single input is active, and running from 220VAC, the unit is capable of providing 2900W. The same data sheets says if there two power supplies they operate in load-sharing so, the output will be 6000w still
4-Is that conclusion correct?
Thanks
-JoseEach 220VAC input of a power supply connects from distinct electrical panels
I have no idea who implemented this but this is incorrect.
Each PS has two input feeds. This is correct. Both input feeds MUST go to the same power source. Let's say you have two power feeds (like anyone else): One is "raw" power and one is UPS power.
So for PS 1, for instance, both input feeds must go to "raw" power. For PS 2, both feeds must go to UPS.
Your current setup means that one input feed from for each PS goes to "raw" power and the other input feed goes to UPS. This won't work. If you fail to UPS, the each power supply does/will NOT have enough input to power the line cards in the chassis. -
Can I Charge the iPad using a 115V / 400Hz power supply?
The charging unit specifies 100-240V and 50-60Hz. Will the iPad be damaged if I use a 115V and 400Hz power supply. The 400Hz power supply is what I've got access to using an aircraft power supply. Thanks.
The increase in frequency will cause a higher input impedance to the transformer inside the charger itself. The charger will therefore have less charging current available and therefore charge the ipad slower. If the compensation circuitry inside tries to overcome the reduced current on the output, it could cause damage.
The formula for input impedance on an inductive device is XL = 2piFL. If you increase input frequency (F), you increase input impedance (XL).
Note: If it's a military aircraft, I am surprised the Plane Commander will let you use the device on the aircraft due to there being transmitter(s) inherent to the ipad. Military aircraft are EMP-hardened from outside emissions only. A transmitter on the inside of the aircraft can cause interference to certain sensors and equipment.
Additionally, the power supply does not meet military standards for grounding, as there is not a grounding pin on the power plug. -
G5 2GHZ what are the effects of low or unstable power supply on a G5?
Hello
I have installed a identical 3 G5 avid systems in prague for editing. 2 of the systems work fine. Third station has a recurring problem. For some reason, at a given moment, the G5 starts having very strong fan flutters, locks up and then won't restart. When it does restart some minutes later it either works fine or it can have a kernel panic. When the machine is returned to the office, the machine works fine and the problem does not recur. Hence, I figure it is something to with the installation or its location. I have started to put aside the other avid equipment aside as culprits as the result is the same even when I soft accessories around.
You may say that the machine is dead etc. The thing that is very strange is that THIS IS THE THRID MACHINE I HAVE REPLACED AND THE PROBLEM CONTINUES.
I have not yet exorcised the room but I might try. In the mean time, I am wondering if there is a power supply issue at the socket. The system has a UPS for power protection. Any ideas?chlowden-
Yup, I am leaning towards AC. Do you have any way of testing the outlets? It could be a bad ground or something along those lines.
Do the UPS's have Automatic Voltage Regulation? If it does not, it is possible that the sags are being passed on to your equipment, especially if the UPS threshold is low.
Luck-
-DaddyPaycheck -
Problem with Get the current and voltage from HP Power Supply (HP E3631A), using the GPIB interface.
my USB device's power support is from the DC Power Supply ( HP E3631A)
I need to read using current from a DC Power Supply ( HP E3631A),via GPIB interface.
When I use the follow command.Why can't read the current value.My environment is in vc++ 6.0.
"APPL P6V,5.0,1.0"
"OUTP ON"
"MEAS:CURR? P6V"
attached the NI SPY File.Please check it.
Can you tell me what the problem is ??
Thanks in Advance !
Hope you can solve my problem !!!"
Attachments:
E3631AERR.spy 7 KBHi neilchuang,
A read timeout error is usually caused by an error on the command string sent.
The first thing I would check is if the instrument requires a termination character at the end of each message (such as linefeed). I noticed in the Spy capture that the commands do not have a termination character attached. This means that the instruments never recognized that you completed the query command, it doesn't execute the requested action and as a consequence of that it doesn't have any data to return.
One question: Is the instrument detected by MAX when you scan for instruments?. If yes then you can assume that the GPIB software and hardware are properly installed. The scan for instruments sends the *IDN? (terminated by a linefeed). You can right-cli
ck on the instrument entry in MAX and select "Communicate with instrument". Notice that at the end of the command the linefeed is included (\n).
Double check with the instrument manual if the commands sent are the right ones.
Finally, there is an instrument driver available in the idnet library: www.ni.com/idnet. Search for 3631. Since you are working in C you can use the LabWindows/CVI Plug and Play driver. Even if you decide not to use the instrument driver, you can still use it as an excellent reference on how to program with the instrument.
Hope this helps!.
DiegoF
National InstrumentsMessage Edited by Molly K on 02-18-2005 11:05 PM -
No 133 for me.....new power supply?
KT333 Ultra
2x 256 2700 DDR
Was working perfect with Thunderbird 1ghz (100mhz bus)....recently went to a n XP 2000 (133mhz bus).
random freezing and crashing all the time now.
I've set bios defaults, upgraded the bios...triple checked the heatsink/fan.....yes I've got thermal paste on....my cpu temp is only showing 41deg C idle....so it can't be a heat issue...I've ran both mem chips individually, both did the same thing.
If I run the CPU at 100mhz bus it works perfectly.
So now it comes down to my power supply.
300watt max: 15 amps 3.3V and 22 amps 5.5V
Hmm, so I'm getting a little over 100watts true power...not good
The one I'm looking at buying is from a local computer shop.
SuperFlower 420watt: 28 amps 3.3V and 42amps 5.5V
So that's 210watt combined.
I've never heard of this brand name before....has anyone else? Should I get it?Quote
Originally posted by storm2099
KT333 Ultra
2x 256 2700 DDR
Was working perfect with Thunderbird 1ghz (100mhz bus)....recently went to a n XP 2000 (133mhz bus).
random freezing and crashing all the time now.
I've set bios defaults, upgraded the bios...triple checked the heatsink/fan.....yes I've got thermal paste on....my cpu temp is only showing 41deg C idle....so it can't be a heat issue...I've ran both mem chips individually, both did the same thing.
If I run the CPU at 100mhz bus it works perfectly.
So now it comes down to my power supply.
300watt max: 15 amps 3.3V and 22 amps 5.5V
Hmm, so I'm getting a little over 100watts true power...not good
The one I'm looking at buying is from a local computer shop.
SuperFlower 420watt: 28 amps 3.3V and 42amps 5.5V
So that's 210watt combined.
I've never heard of this brand name before....has anyone else? Should I get it?
i have one it works great!
ALSO if you set bios defaults it went back to 100mhz
Go into frequency and voltage jn bios and make sure spread spectrum is diabled and set fsb to 133mhz and the rest of the settings on auto. then hit f10 to save settings and exit and hit enter. -
How do i connect the "back-fan" to a pc power-supply?
Hello! My neim is tachtoz!
I have some questions!
I want to connect the "back-fan" of a mac g5 to a pc powersupply.
doesnt matter if i have to cut the cables on the fan or the powersupply.
I guess its +12V, but what cables is juice and what is neutral? Also, some of these cables must be some kind of fan speed cable, since its 4 cables/fan?
Here is a pic of the fans and connector.
http://img686.imageshack.us/img686/7649/nigganigga.jpg
Hope u can help me mac-bois!Hi tachtoz, and a warm welcome to the forums!
I'd either search his site..
http://xlr8yourmac.com/
Or sign up on my BBS and ask there...
http://x704.net/bbs/ -
2.16 GHz 15" MBP or wait for the 17" MBP?
So I'm at the mall today with the wife when we happen to go into the Apple Store so she could look at some iPod stuff. I'm playing around with a MBP when the guy tells me that they just got in a shipment of 15" MBP's in all three processor speeds! What luck!
With all the shipping delays for the MBP's, I just couldn't pass it up, so I ended up leaving with the "Ultimate" version: 2.16 GHz, 1 GB RAM, 256 VRAM and a 100GB 7200 RPM drive.
So here's the deal:
The 15.4" inch screen is awesome and big enough for what I do (Logic Pro sequencing), but to me a 17 inch screen would be desirable as well. It's not an absolute must by any means considering I have a 20" Dell LCD display that the MBP will be connected to 60-70% of the time, but all things being equal, if given a choice between a 15" or a 17" configured exactly the same, I'd take the 17" just for the extra screen real estate. So although I'm EXTREMELY tempted to, I haven't opened the box for my new MBP yet because of the recent rumors of a possible 17" MBP being announced during the Apple Birthday event. The 14-day return period for my MBP ends April 1st so assuming they actually annouce a 17" model by then, I could return the 15.4" unopened for a 100% refund by April 1st and then turn right around and order the 17".
The question:
Given the current MBP supply issues and the availability (or lack thereof) of an 8x SuperDrive to go in it, realistically what are the chances that a 17" MBP is made available in April?
What would you do in this situation: Don't open the 15" and wait until April 1st to see if a 17" is announced or forget the 17" and stick with the 15"?Thanks for the replies, guys.
The more I think about it, the more I think I'm gonna just stick with the 15". Sure, a 17" would be nice, but I've already spent way more than I should've anyway. Like I said earlier, I don't do any graphics-intensive work or gaming so I really don't need a 17" LCD - especially with a 20" LCD to connect it to. Besides, even if a 17" was announced, it would obviously be more expensive and would extend me even more than I have already. I've fed the credit card too much as it is!
I hate to admit it but the truth of the matter is that this is yet another case of me being greedy again; I do this with EVERY technical purchase I make; from iPods to TV's, I ALWAYS want the latest & greatest, the biggest & best and I'll try to find every way I can to justify it - even when I really don't need it. It is for that reason alone that credit card companies absolutely LOVE me. It's messed up being cursed with AFFNTS (Always Fiending For New Toys Syndrome). It's a disease, I tell you!
In my case, the 15.4 is screen is big enough for OCCASIONAL PORTABLE web surfing and Logic Pro music work. Like I said earlier, the MBP is gonna be sitting on a desk and connected to a 20" LCD display at least 70% of the time (probably more than that). I don't travel so the most I would ever be portable would be moving from the desk to the bedroom or the living room when my wife wants to use our other PC - and that would only be if I deem it safe to have my MBP out around my hyperactive 22-month old son who tries to grab everything he sees!
The bottom line is the 15.4" is fine and I think I'll stick with it. I wouldn't be settling in my mind either because I actually had my heart set on the 2.16GHz 15.4" model in the first place until I played around with a friend's 17" PowerBook and started thinking "Wouldn't the extra 2" of screen real estate be nice?" That's how the drama always starts...
Anyway, they'll no doubt drop a 17" inch real soon (maybe in April) I'm sure and I'll probably be upset for a minute, but I'll get over it. Frankly, I just picked a bad time to start craving for a Mac. As such, I've been seriously obsessed with this whole Intel switch and debating when and what to buy ever since January (which is waaay too long) and I'm tired of thinking about it.
I got an awesome machine right now and that's good enough for me. So without further delay, I'm gonna pop the box open and start enjoying the fruits of my labor!
Now I just hope its defect-free...
Thanks for the opinions.
Ken
2.16 GHz MBP, 2 GB, 256 MB VRAM, 100 GB/7200 RPM HD Mac OS X (10.4.5) -
I have a 4 gen Time Caps. and a 2nd Gen Airport Extreme I would like to extend my TC network to use the Extreme for the purpose of having internet available to my TV box wired. Is this possible and how to I get them to work together?
How can I get my Time Cap (TC 4 gen) to recognise my 2gen Airport Extreem (AE)
FrankThanks for the info, this really helps.
Power up the AirPort Extreme for a few minutes, then hold in the reset button on the back of the Extreme for 10 seconds and release. Allow a full minute for the Extreme to restart to a slow, blinking amber light.
It might be possible to use wireless to configure the Extreme, but I recommend using a wired connection. Temporarily, connect an Ethernet cable from your Mac to one of the LAN <-> ports on the Extreme.
Click the AirPort icon at the top of the Mac's screen and wait a few seconds for a listing of New AirPort Base Station to appear. Just below that, click on AirPort Extreme.
The illustration below shows an AirPort Express. You will see AirPort Extreme on your screen.
AirPort Setup will open up automatically and take a minute to analyze the network, then announce that the Extreme will be configured to extend the Time Capsule network.
Enter a device name that you want to use for the Extreme and click Next
Wait a minute while AirPort Setup configures things for you. When you see the message of Setup Complete, click Done.
You can disconnect the Ethernet cable that you used for the set up now. Things should be working. The Extreme is providing additional wireless coverage the the Ethernet ports are enabled. You can connect to any port that you want since they all operate the same in this type of setup.
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