Clear power up status question

Hi,
I have been using NI-Motion controller 7334 along with UMI-7764 for a while.  Today the error 70072 "The FlexMotion controller is in power up reset
state. Please execute the Clear Power Up Status function or VI before
sending any commands to the controller" was reported when I tried to execute my application VI. What could have happened to cause this error suddenly?
I initialized the controller using measurement and automation program.  After this initialization, the error is gone and stepping motors move, but other functions do not work in my application VI.  If I restart the computer, the error returns.  Also, the stepping motors move when computer is OFF. I am not sure if I am doing the correct procedure to clear power up status.
Any help to resolve this issue is appreciated!
Just to give an idea about my knowledge level, I am not familiar with LabView programming.
Thanks!

Hello Sameer,
Attached VI will :
Check if the controller is in the Power Up Reset state
Clear the Power Up Reset state if needed
Initialize the controller. Settings Name must be an existing motion configuration.
Hope this helps
Message Edité par JB le 10-22-2007 10:25 AM
Attachments:
Clear Power Up Reset if set.vi ‏23 KB
Capture.jpg ‏76 KB

Similar Messages

  • How to clear power up reset states?

    Hi everybody,
    I'm facing a problem with the motion control system, the system kept contiune showing us that the system is in power up state. we run the clear power up reset state program but we still could not solve the problem. Is there any other solution to provide me to solve this problem. what are the problem that actually cause this error state? this problem dose it related to our hardware connection or software setting?
    thanks for helping.. really need the help...

    Hey Kuroro,
    Usually when you call and run the clear power up reset state program, it should take care of resetting the state of the board. The next step to try is after you have run the clear power up reset state is to initialize the board itself. Go ahead and try to reinitialize the board after you call this clear power reset state program. You can either initialize the board in the Measurement and Automation Explorer, or you can use the function in Labview to do this. You can just use the Initialize Controller VI to do this.
    Please let me know if this works or not. Usually initiallizing the board after calling the Clear Power up Reset State VI solves the issue. Keep me updated on what else is going on, i.e. what errors you are seeing or what else is going on with the hardware. Thanks, and have a great day.
    Regards,
    DJ
    Applications Engineer
    National Instruments

  • How to read the power and status LEDs on cFP2020

    Can the cFP2020 Power and Status LEDs be monitored by a host program? Also, can the Power and Ready LEDs be monitored from the other cFP Modules?

    You can not directly read the Network Module Power or Status LED from a host program. Likewise, you can not directly read the Power and Ready LED of an IO module.
    However, even though you can not directly ready the LED status, there are ways of finding out most of the information that the LEDs convey.
    For the Network Module Power LED, you can infer the status of the Power LED by looking at the channel status for any/all items that are on the bank. If the items have errors indicating that a communication timeout has occured or an addressed item does not exist, then it is probable that the unit is offline (either because of no power or a fault). The Status LED indicates the current operating status of the Network module and in most cases, if it is flashing
    , then a fault has occured that shutdown the processor. In most cases, you will not be able to determine that the Status LED is flashing, as the Status LED indicates a fault condition which will put the unit into a non-standard operating mode (e.g. firmware corruption, unassigned IP Address, or an OS fault).
    For the IO modules, each channel on a module can report status, and based upon the status you can infer the state of the LEDs. If the module does not have the Power LED lit, the most likely status will be "Addressed item does not exist". If the module has the Power LED but no Ready LED, then the status will indicate that the "item is unconfigured". If the module has both a Power and Ready LED, than the channel should report either a good status, or a channel specific error (if applicable).
    Regards,
    Aaron

  • How can I clear the challenge/security questions on my account?

    I want to know how you can clear the challenge/security questions on my account since I forgot the answers to them.

    Security questions:
    https://discussions.apple.com/docs/DOC-4551
    http://support.apple.com/kb/HT5312

  • Use SNMP to monitor the power supply status of stacked switches

    Does anybody know how to use SNMP to monitor the status of the internal power supplies of a group of stacked Cisco 3750 switches?
    The switch stack has three 3750-48PS-E switches inter-connected by Cisco StackWise cable. IOS ver 12.1(19)EAlc. A single IP address is used to identify the switch stack. Every time I poll the OID chassisPs1Status (1.3.6.1.4.1.9.5.1.2.4.0 in CISCO-STACK-MIB), I only got the status for the Master switch of the switch stack. Is there any way to poll the power supply status of other switches in the switch stack?
    Thanks a lot!

    Sorry to refresh such an old topic - but I am stuck with exactly this: Monitoring power supplies of a stacked Cisco Catalyst 3750-E.
    I'm using the exact same OID's as described, but the problem is, the information shown on the SNMP output is not correct.
    This morning, a power supply of the first switch failed and switched to RPS. Here the information I got on SNMP:
    snmpwalk -v 2c -c public 192.168.1.50 1.3.6.1.4.1.9.9.13.1
    SNMPv2-SMI::enterprises.9.9.13.1.1.0 = INTEGER: 13
    SNMPv2-SMI::enterprises.9.9.13.1.3.1.2.1006 = STRING: "SW#1, Sensor#1, GREEN "
    SNMPv2-SMI::enterprises.9.9.13.1.3.1.2.2006 = STRING: "SW#2, Sensor#1, GREEN "
    SNMPv2-SMI::enterprises.9.9.13.1.3.1.3.1006 = Gauge32: 41
    SNMPv2-SMI::enterprises.9.9.13.1.3.1.3.2006 = Gauge32: 40
    SNMPv2-SMI::enterprises.9.9.13.1.3.1.4.1006 = INTEGER: 59
    SNMPv2-SMI::enterprises.9.9.13.1.3.1.4.2006 = INTEGER: 59
    SNMPv2-SMI::enterprises.9.9.13.1.3.1.5.1006 = INTEGER: 0
    SNMPv2-SMI::enterprises.9.9.13.1.3.1.5.2006 = INTEGER: 0
    SNMPv2-SMI::enterprises.9.9.13.1.3.1.6.1006 = INTEGER: 1
    SNMPv2-SMI::enterprises.9.9.13.1.3.1.6.2006 = INTEGER: 1
    SNMPv2-SMI::enterprises.9.9.13.1.4.1.2.1060 = STRING: "Switch#1, Fan#1"
    SNMPv2-SMI::enterprises.9.9.13.1.4.1.2.2059 = STRING: "Switch#2, Fan#1"
    SNMPv2-SMI::enterprises.9.9.13.1.4.1.3.1060 = INTEGER: 1
    SNMPv2-SMI::enterprises.9.9.13.1.4.1.3.2059 = INTEGER: 1
    SNMPv2-SMI::enterprises.9.9.13.1.5.1.2.1059 = STRING: "Sw1, PS1 Normal, RPS NotExist"
    SNMPv2-SMI::enterprises.9.9.13.1.5.1.2.2060 = STRING: "Sw2, PS1 Normal, RPS NotExist"
    SNMPv2-SMI::enterprises.9.9.13.1.5.1.3.1059 = INTEGER: 1
    SNMPv2-SMI::enterprises.9.9.13.1.5.1.3.2060 = INTEGER: 1
    SNMPv2-SMI::enterprises.9.9.13.1.5.1.4.1059 = INTEGER: 2
    SNMPv2-SMI::enterprises.9.9.13.1.5.1.4.2060 = INTEGER: 2
    As you see, both PS1 (for both switches) are appearing normal. It doesn't even recognize RPS:
    SNMPv2-SMI::enterprises.9.9.13.1.5.1.2.1059 = STRING: "Sw1, PS1 Normal, RPS NotExist"
    SNMPv2-SMI::enterprises.9.9.13.1.5.1.2.2060 = STRING: "Sw2, PS1 Normal, RPS NotExist"
    The first switch's power supply died and now the cable is disconnected. LED's of the power supply are out. And still: The switch happily announces by SNMP it's power supplies are up.
    Is this a known bug? If yes, has it been fixed?
    Model  WS-C3750E-48TD
    Firmware 12.2(37)SE1
    /* Style Definitions */
    table.MsoNormalTable
    {mso-style-name:"Table Normal";
    mso-tstyle-rowband-size:0;
    mso-tstyle-colband-size:0;
    mso-style-noshow:yes;
    mso-style-priority:99;
    mso-style-qformat:yes;
    mso-style-parent:"";
    mso-padding-alt:0cm 5.4pt 0cm 5.4pt;
    mso-para-margin:0cm;
    mso-para-margin-bottom:.0001pt;
    mso-pagination:widow-orphan;
    font-size:11.0pt;
    font-family:"Calibri","sans-serif";
    mso-ascii-font-family:Calibri;
    mso-ascii-theme-font:minor-latin;
    mso-fareast-font-family:"Times New Roman";
    mso-fareast-theme-font:minor-fareast;
    mso-hansi-font-family:Calibri;
    mso-hansi-theme-font:minor-latin;
    mso-bidi-font-family:"Times New Roman";
    mso-bidi-theme-font:minor-bidi;}

  • How to check Temp/Power supply status like V210 in T2000

    Hi
    As I would like to know what is the command to check the Power Supply Status/Temp Status like V210 in T2000. I tried with /usr/platform/sun4v/sbin/prtdiag –v command like V210 but it disaplys only below details.
    System Configuration: Sun Microsystems sun4v Sun Fire T200
    System clock frequency: 200 MHz
    Memory size: 8184 Megabytes
    ================================ Virtual CPUs ================================
    CPU ID Frequency Implementation Status
    0 1000 MHz SUNW,UltraSPARC-T1 on-line
    1 1000 MHz SUNW,UltraSPARC-T1 on-line
    2 1000 MHz SUNW,UltraSPARC-T1 on-line
    3 1000 MHz SUNW,UltraSPARC-T1 on-line
    4 1000 MHz SUNW,UltraSPARC-T1 on-line
    5 1000 MHz SUNW,UltraSPARC-T1 on-line
    6 1000 MHz SUNW,UltraSPARC-T1 on-line
    7 1000 MHz SUNW,UltraSPARC-T1 on-line
    8 1000 MHz SUNW,UltraSPARC-T1 on-line
    9 1000 MHz SUNW,UltraSPARC-T1 on-line
    10 1000 MHz SUNW,UltraSPARC-T1 on-line
    11 1000 MHz SUNW,UltraSPARC-T1 on-line
    12 1000 MHz SUNW,UltraSPARC-T1 on-line
    13 1000 MHz SUNW,UltraSPARC-T1 on-line
    14 1000 MHz SUNW,UltraSPARC-T1 on-line
    15 1000 MHz SUNW,UltraSPARC-T1 on-line
    ========================= IO Configuration =========================
    IO
    Location Type Slot Path Name Model
    IOBD/NET0 PCIE IOBD /pci@780/pci@0/pci@1/network@0 network-pciex8086,105e
    IOBD/NET1 PCIE IOBD /pci@780/pci@0/pci@1/network@0,1 network-pciex8086,105e
    IOBD/PCIE PCIE IOBD /pci@780/pci@0/pci@9/scsi@0 scsi-pciex1000,56 LSI,1064E
    IOBD/NET2 PCIE IOBD /pci@7c0/pci@0/pci@2/network@0 network-pciex8086,105e
    IOBD/NET3 PCIE IOBD /pci@7c0/pci@0/pci@2/network@0,1 network-pciex8086,105e
    IOBD/PCIE1 PCIE 1 /pci@7c0/pci@0/pci@8/network@0 network-pciex108e,abcd SUNW,pcie+
    IOBD/PCIE1 PCIE 1 /pci@7c0/pci@0/pci@8/network@0,1 network-pciex108e,abcd SUNW,pcie+
    IOBD/PCIE1 PCIE 1 /pci@7c0/pci@0/pci@8/network@0,2 network-pciex108e,abcd SUNW,pcie+
    IOBD/PCIE1 PCIE 1 /pci@7c0/pci@0/pci@8/network@0,3 network-pciex108e,abcd SUNW,pcie+
    IOBD/PCIX PCIX IOBD /pci@7c0/pci@0/pci@1/pci@0/isa@2 isa
    IOBD/PCIX PCIX IOBD /pci@7c0/pci@0/pci@1/pci@0/usb@5 usb-pciclass,0c0310
    IOBD/PCIX PCIX IOBD /pci@7c0/pci@0/pci@1/pci@0/usb@6 usb-pciclass,0c0310
    IOBD/PCIX PCIX IOBD /pci@7c0/pci@0/pci@1/pci@0/ide@8 ide-pci10b9,5229
    ========================= HW Revisions =======================================
    System PROM revisions:
    OBP 4.25.12 2008/03/23 13:27
    IO ASIC revisions:
    Location Path Device Revision
    IOBD/SAS-SATA-HBA /pci@780 SUNW,sun4v-pci 0
    IOBD/SAS-SATA-HBA /pci@780/pci@0 pciex10b5,8532.bc 188
    IOBD/SAS-SATA-HBA /pci@780/pci@0/pci@9 pciex10b5,8532.bc 188
    IOBD/IO-BRIDGE /pci@7c0 SUNW,sun4v-pci 0
    IOBD/PCI-SWITCH1 /pci@7c0/pci@0 pciex10b5,8532.bc 188
    IOBD/PCI-BRIDGE /pci@7c0/pci@0/pci@1/pci@0,2 pciex8086,341.9 9
    IOBD/GBE0 /pci@780/pci@0/pci@1/network@0 pciex8086,105e.108e.105e.6 6
    IOBD/GBE0 /pci@780/pci@0/pci@1/network@0,1 pciex8086,105e.108e.105e.6 6
    IOBD/GBE1 /pci@7c0/pci@0/pci@2/network@0 pciex8086,105e.108e.105e.6 6
    IOBD/GBE1 /pci@7c0/pci@0/pci@2/network@0,1 pciex8086,105e.108e.105e.6 6
    IOBD/SAS-SATA-HBA /pci@780/pci@0/pci@9/scsi@0 pciex1000,56.1000.1000.2 2
    I am interested in getting the same o/p which also gives status on Fan Status/Power Supplies etc.
    Please let me know do we need to upgrdae the OBP Version else ?
    Thanks
    Rajan

    Hi
    In thee same ref. I would like to know the comand from OS/Bash prompt so that I can write the script in which it will compare the values and alert me accordingly.
    In case sc> prompt there is commnand "show environment" which give all details.
    Thanks
    Rajan

  • Power Supply Status Changed

    A while back our Xserve G5 went on UPS power for a few seconds. No big deal just a power blip.
    Since then we get a "Power Supply Status Changed" message in the server log ever 12 seconds. I can't get it to go away. Server has been rebooted multiple times.
    The OS Version is 10.4.1
    Everything is functioning normally and there are no power problems. How do I stop this message?

    We are also using the APC. Not sure which model, but we are also getting the same messages. We disconnected the cable early last week and the message is still going. We have been investigating all logs on our server for another problem which is where the server just stops being available on the network. To fix requires a restart using the power button to turn if off and then on again.
    Then all is normal except for the "Power Supply Status Changed" error.
    So far this is the only error we get that shows a problem exists.
    Is anyone else also having the lockup problem?
    X Serve G5   Mac OS X (10.4.3)   RAID

  • ASA 5512 - monitor power supply status via snmp oid

    Device – ASA 5512 running 9.1(1).
    Show version:
    ASA-1# sh ver
    Cisco Adaptive Security Appliance Software Version 9.1(1)
    Device Manager Version 6.6(1)
    Compiled on Wed 28-Nov-12 11:15 PST by builders
    System image file is "disk0:/asa911-smp-k8.bin"
    Config file at boot was "startup-config"
    ASA-1 up 8 hours 38 mins
    Hardware:   ASA5512-K7, 4096 MB RAM, CPU Clarkdale 2792 MHz, 1 CPU (2 cores)
                ASA: 2048 MB RAM, 1 CPU (1 core)
    Internal ATA Compact Flash, 4096MB
    BIOS Flash MX25L6445E @ 0xffbb0000, 8192KB
    Issue: looking for a snmp OID to poll power supply status (Inbuilt Power Supply -  no redundant power supply in this scenario). Possibly what we see in show environment.
    CSE analysis:
    I tried using the OIDs belonging to CISCO-ENTITY-FRU-CONTROL-MIB , like cefcFRUPowerOperStatus and cefcFRUPowerAdminStatus but it didn’t return anything.
    NOTE: I have done all the snmp walks from the Linux server. Do I doubt it’s something to do from the snmp manager side.
    Couple of observations. The  CISCO-ENTITY-FRU-CONTROL-MIB talks about the field replaceable power supplies, so I doubt if it’s going to return the value for inbuilt power supply.
    Second, I noticed that there are snmp traps supported for power supply and threshold setting. See configuration below. Is it that only traps works for power supply and environment related details?
    Snmpwalk on cefcFRUPowerStatusEntry returns nothing:
    [root@tonbenso-eagle bin]# ./snmpwalk -v2c -c public 172.16.169.29 1.3.6.1.4.1.9.9.117.1.1.2.1
    SNMPv2-SMI::enterprises.9.9.117.1.1.2.1 = No Such Object available on this agent at this OID
    Snmpwalk on cefcFRUPowerOperStatus returns nothing:
    [root@tonbenso-eagle bin]# ./snmpwalk -v2c -c public 172.16.169.29 1.3.6.1.4.1.9.9.117.1.1.2.1.2
    SNMPv2-SMI::enterprises.9.9.117.1.1.2.1.2 = No Such Instance currently exists at this OID
    Snmpwalk on cefcFRUPowerAdminStatus returns nothing:
    [root@tonbenso-eagle bin]# ./snmpwalk -v2c -c public 172.16.169.29 1.3.6.1.4.1.9.9.117.1.1.2.1.1
    SNMPv2-SMI::enterprises.9.9.117.1.1.2.1.1 = No Such Instance currently exists at this OID
    [root@tonbenso-eagle bin]#
    login as: root
    I tried polling the ciscoEntityFRUControlMIB to see what all values it return. It just returned enterprises.9.9.117.1.3.1.0 = INTEGER: 2. Meaning cefcMIBEnableStatusNotification is FALSE (value 2). Meaning cefcModuleStatusChange, cefcPowerStatusChange, cefcFRUInserted, cefcFRURemoved, cefcUnrecognizedFRU and cefcFanTrayStatusChange are prevented from being sent.
    Snmpwalk on ciscoEntityFRUControlMIB
    [1]+  Stopped                 ./snmpwalk -v2c -c public 172.16.169.29
    [root@tonbenso-eagle bin]# ./snmpwalk -v2c -c public 172.16.169.29 1.3.6.1.4.1.9.9.117
    SNMPv2-SMI::enterprises.9.9.117.1.3.1.0 = INTEGER: 2
    Object
    cefcMIBEnableStatusNotification
    OID
    1.3.6.1.4.1.9.9.117.1.3.1
    Type
    TruthValue
    Permission
    read-write
    Status
    current
    MIB
    CISCO-ENTITY-FRU-CONTROL-MIB ;   -   View Supporting Images
    Description
    "This variable indicates whether the system
    produces the following notifications:
    cefcModuleStatusChange, cefcPowerStatusChange,
    cefcFRUInserted, cefcFRURemoved,
    cefcUnrecognizedFRU and cefcFanTrayStatusChange.
    A false value will prevent these notifications
    from being generated."
    Found couple of bugs:
    CSCty32558 – but then this is for 5585 and I see it is fixed in 8.4
    CSCul90037 – New state
    Show snmp-server oidlist:
    http://www-tac.cisco.com/Teams/ks/c3/getLargeFile.php?srId=632222409&fileName=20141030-013905_ASA-show-snmp-server-oidlist.txt
    Show tech:
    Sh run | in snmp:
    ASA-1# sh run | in snmp
    snmp-server host asa 172.18.123.228 community *****
    no snmp-server location
    no snmp-server contact
    snmp-server community *****
    snmp-server enable traps entity power-supply-presence power-supply-temperature  -----à I was talking about this trap above
    any help will be appreciated.

    Hi
    I've got an ASA with redundant power supplies. An ASA5585. So I have the need to monitor them. :-) So how can we do it?
    Also I've made a SNMP-Walk through the ASA v8.4(2)8 and it doesn't show up any ENV-MIB values. The
    1.3.6.1.4.1.9.9.13 tree is not available. Are you shure it's available on the ASA?
    Funny is also that the command "show snmp-server oidlist" from the 8.4 configuration guide is not available on the real CLI. I think the documentation guys were faster than the coders. ;-)
    Kind regards
    Roberto

  • Power Supply Status Changed - every 12 seconds

    Server Monitor shows all green for all components, but the log shows a red message every 12 seconds "Power Supply Status Changed". The power is coming through an APC UPS device, which also appears to be working fine. Any ideas?
    Xserve G5 Dual   Mac OS X (10.4.5)  

    Last night I got an Email:
    Subject: Server Problem Notification
    A problem has been detected on this server.
    ============================================================
    Status Summary
    Reason(s) for notification:
    Power
    Server:
    Host : geekho
    Model : RackMac3,1
    Uptime : 17952 minutes
    OS version : Mac OS X Server 10.4.6 (8I127)
    Processor : 1 x 2000 MHz
    Memory : 2048 MB
    BootROM : $0005.17f2
    Serial : QP6170FQSLX
    Memory:
    Memory Slot "DIMM0/J11" : 1024MB, ECC DDR SDRAM, PC3200U-30330
    Memory Slot "DIMM1/J12" : 1024MB, ECC DDR SDRAM, PC3200U-30330
    Drives:
    Drive 1 (disk0) : Normal
    Drive 2 (disk1) : Normal
    Network:
    en0 ( active) : Normal
    Sensors:
    CPU 1 Power : 12.55 watts
    1.5v : 1.49 volts
    3.3v Trickle : 3.30 volts
    5v : 5.04 volts
    12v Trickle : 12.06 volts
    1.2v : 1.18 volts
    Behind the DIMMs : 52.00 C
    1.8v : 1.80 volts
    System Bus IO VDD : 1.46 volts
    PCI Slots : 45.00 C
    DDR IO : 2.63 volts
    DDR IO Sleep : 2.63 volts
    3.3v : 3.30 volts
    3.3v Sleep : 3.28 volts
    5v Sleep : 5.07 volts
    12v : 12.00 volts
    System Controller Vcore : 1.71 volts
    1.5v Sleep : 1.51 volts
    1.2v Sleep : 1.18 volts
    Between the Processors : 34.00 C
    CPU 1 Internal : 46.02 C
    CPU 1 12v : 0.94 amps
    CPU 1 Vcore : 1.27 volts
    CPU 1 Core : 9.89 amps
    System Controller Internal : 55.75 C
    CPU 1 Ambient : 38.00 C
    System Controller Ambient : 44.00 C
    CPU 1 Inlet : 30.00 C
    CPU 2 Inlet : 27.50 C
    Controls:
    CPU A1 : 3973 RPMs
    CPU A2 : 3988 RPMs
    CPU A3 : 4002 RPMs
    CPU B1 : 3992 RPMs
    CPU B2 : 4017 RPMs
    CPU B3 : 3982 RPMs
    System Controller : 5585 RPMs
    PCI Slot : 3890 RPMs
    Clock Slew :
    Security:
    Enclosure Intrusion : No
    ============================================================
    I don't see anything wrong (CPU power?), and the Server Monitor app shows all green lights and everything "Normal" except CPU Core amps at 7 amps peaking to 10.25 or so, which it calls "High".
    What (if anything) is wrong, and what (if anything) should/could I do to fix it? Is this related to the original problem?
    Thanks!

  • ILO 4 scripting to get Power Supply Status

    Hi all,
    Been using the iLO xml scripting tools via cpqlocfg.exe and hponcfg.exe to retrieve status information from a server running iLO 4.
    If I use the web interface, I can get information about the power supplies and their redundancy status as shown below - but I can't seem to get this information using the scripting system. Does anyone know how to do it??
    Thanks,
    Daz
    This question was solved.
    View Solution.

    I've found it!  In case anyone is wondering, a lot of server information is available by querying with the iLO xml tag "GET_EMBEDDED_HEALTH".
    This returns, buried way down in the results, information about power supplies (section POWER_SUPPLIES).
    While there doesn't seem to ask for just information on the power supplies, this works!

  • Power Supply Cooling Question

    Well, I've been up and running now for the last week or so with no major issues.
    I'd like to thank all of you that answered my previous questions during my search for parts and helping me put a good plan in place so that the building of this system was painless.
    I have a question though that kind of concerns me.
    I noticed one day that what should be an exhaust from the power supply is not an exhaust at all.  The air flow is actually into the power supply.  I thought this was very unusal.  Years ago I actually did have a power supply that had a fan mounted backwards, but that was some cheap case/ps combo in the P2 days.  
    My power supply in this system is an Enermax EG465P-VE.  I said to myself "no way could it be mounted backwards".  After checking things out very closely I found that when I removed the side case cover, the power supply started exhausting in the right direction.  Put the case cover back on and the air flow went into the power supply again.  Ifinally came to the conclusion that the 120mm fan in the back of the case about 2-3 inches below the power supply was actual exhausting so much air out the case that this 120mm fan was actually drawing air against the power supply's fans and causing a slightly negative flow of air (in the wrong direction) through the power supply.  I hope I have clearly described the situation.  
    What concerns me is that the negative flow results in very little air flowing within the power supply, which could  potentially result in the power supply overheating and failing resulting in a MoBo and processor frying.
    To clarify again, the power supply is trying to push air out, but the 120mm fan is slightly stronger and is more than neutrallizing any flow through the power supply.  
    Just a little more info... I do have one 80mm fan in the front of the case sucking air into the case, blowing over the hard drive.
    There is another spot for a second 80mm fan in the front, but since I'm not over-clocking and really not producing a lot of heat I didn't think I needed two fans in front.
    The only other solution that I can think of is to somehow rig up a verister or sensor on the 120mm fan, but to cover all temperture combinations could result in something very complicated for something that shouldn't be that complicated.
    Maybe someone has noticed the same problem and has a solution.
    Thanks.
    //PantherFan

    When you see the specs on a cooling fan it says so many CFM. But really what it should be saying is how many CFM at a given speed and at a given pressure ratio (exit to inlet pressure ratio). For a given speed the relationship between flow rate and pressure ratio is on a negative slope. That is if you reduce pressure ratio, flow rate goes up and vice versa.
    Using your example suppose I put in two intake fans that on spec each draws 10 CFM and one exhaust fan that does 15 CFM and lets assume that the case is so sealed that air can only enter and leave the case via the intake and exhaust holes. When you turn this system on both intake fans try to pressurise the case but as the case pressure goes up, so does the pressure ratio acrsss the fans. Recall the slope relationship. What happens is that the flow rate drops across the two intake fans. Similarly as the pressure inside the case goes up, it become a lot easier for the exhaust fan to do its job because its pressure ratio is dropping. So what does really happen in this situation? Well the overall system reaches an equilibrium condition where the two fans deliver just enough air that the exhaust fan takes out. You can also consider extreme cases where you have massive intake fans and a weak exhaust fan. In this extreme case you'd be better off by removing the weak exhaust fan because the pressure across it becomes so low that you would not need it. You can take the argument around and make the case for a powerful exhaust fan and obviate the need for an intake fan.
    Then why do we need so many fans if all we need is one powerful exhust or intake fan? This happens because as air enters the case, it follows its least resistance path inside the case. This implies that you may end up with "dead air" areas in some regions of the case which won't be good for heat duild up. Now this does not mean that by a careful rearrangement of the components you would not be able to come up with a configuration that only uses one fan. To that you'd need to use computational flow techniques and mathematically model each component in terms of blockage and the amount of heat being put out. This is quite expensive to do so but this is how its done for the high power computers.

  • Level 2 status question

    recently recieved an email welcoming me to level 2 and it begins with:
    Please include the line below in follow-up emails for this request.
    Follow-up: 11111111 (random numbers in place of actual ones in the email)
    I dont understand what this is..some type of id?  Thanks!

    shldr2thewheel wrote:
    Follow-up: 11111111 (random numbers in place of actual ones in the email)
    I dont understand what this is..some type of id?  Thanks!
    It's only for answering the email in case you have any questions or remarks about your status and so on.
    On that you should include that "follow up number" in the subject line of the eMail to identify the "follow up" mail and group all mails relating to you.
    It's like a ticket number on support mails.
    Lupunus

  • Row Status Question

    Hi,
    I'm creating a custom page in OAF, and I have a question about row status. I am curious to know if there is a way to determine if a row has been committed to the database yet or if it is just sitting in the cache.
    Basically, we have a 1-1 relationship between two tables. When a user tries to a new record in table B, it must be associated with an existing record in table A. When the user goes to the create page for table B, a new record is immediately created (per the examples in the toolbox tutorial) and the user can enter data and select a record from table A to associate with, via an LOV.
    If a user tries to create a new record in table B using a record in table A that already has an existing association, our client would like us to move them to the already existing record in table B. If we do this, we'd need to discard the new record we originally created so that it does not get entered in the database.
    I'd like to know if there's a way to tell if a row has just been created or if it is a row that was already present on the database. My concern is that a user could sequentially select any number of records from table A that may or may not have an association, so I'd like to be able to tell which rows should be discarded as they go.
    I'm imagining a user goes to the create record page for table B does something like the following while deciding which record from A to associate with:
    1) Select record from A with no association -> use new record for B.
    2) Select another record from A that has association -> move to existing B record, check if record from step 1 is new: if so - discard it, if not - ignore it
    3) Select another record from A that has association -> move to other existing B record, check if record from step 2 is new, if so - discard it, if not - ignore it
    So, I just want to know if it's possible to tell whether a record is new or one that comes from the database.
    Any suggestions will be greatly appreciated!
    Thanks!
    John

    You can use getEntityState() on EO object to get the status of the row. It returns one of the following:
    STATUS_NEW - the entity object is new in the current transaction
    STATUS_DELETED - the entity object originated in the database, and has been deleted in the current transaction
    STATUS_MODIFIED - the entity object originated in the database, and has been changed
    STATUS_UNMODIFIED - the entity object originated in the database, and has not been changed, or it has been changed and those changes have been committed
    STATUS_DEAD - the entity object is new in the current transaction and it has been deleted
    STATUS_INITIALIZED - the entity object is in a "temporary" state and will not be posted or validated

  • Play Status Question

    Hi I have what looks like a fast reverse symbol in my play status on my IPOD. I can't see whether it is playing or paused. does anyone know what this is and how to remove it?
    IBM   Windows XP  

    greetings everyone and a happy new year. am a new
    shuffle owner and after getting over the initial
    familiarization, ive come across a situation. in all
    of the documentation (online, print, forums)
    concerning battery light status, there ISN'T an
    implicit indication that both lights (top and bottom)
    will light up simultaneously when doing a battery
    check. so if anyone here could offer some
    thoughts/answers i would very much appreciate it. i
    understand that to check battery status you switch
    the shuffle on and off within 5 seconds, the shuffle
    will continue to play and the status light will
    indicate charge. my question is, are BOTH top and
    bottom lights supposed to indicate this or only the
    bottom (i.e. next to the on/off switch)? funny me but
    it struck me as odd that this morning only the bottom
    light showed battery status when i thought the top
    would. fyi, the lights on my shuffle work in every
    manner as its supposed to EXCEPT this battery status
    (either it doesn't or isnt supposed to). thanks very
    much beforehand.
    According to the manual:
    "...iPod shuffle has two status lights, one on the top and one on the bottom, that let you know when you’ve pressed a button, the state of the battery, that iPod shuffle is enabled as a disk, or if there’s something wrong... "
    HOWEVER, my experience is that same as yours: ONLY the LED next to the switch shows battery status. BOTH bottom and top LED light to show button pushes, etc...

  • Power Mac G4 questions.

    So like so many other users, my Power Mac G4 tower will not power on.
    All that happens when I press the power button is the indicator light will flash in the blink of an eye.
    When I hold the power butoon, same thing, but there is a faint clicking sound comeing from inside the case.
    I'm pretty sure it might be the power supply that is out, so how would I know what specific item I will need to buy to replace the bad one?
    Also, would it be recommended to get a new battery for it too since it is well over 5 years old?
    If none of you can answer my questions, will Geek Squad (no Apple store for quite a ways) be able o point me in the right direction?
    How much will they charge me just to look at it, without any repairs?
    -Thank you for your time.

    What model G4?
    A weak/discharged PRAM battery can cause the no start up. Check this site for battery part numbers and sources. https://sites.google.com/site/macpram/mac-pram-nvram-cuda-pmu-battery-tutorial Mac PRAM, NVRAM, CUDA/PMU & Battery Tutorial
    Something to try in the meantime. Resetting the Logic Board
    Resetting the logic board can resolve many system problems. Whenever you have a
    unit that fails to power up, you should follow this procedure
    before replacing any modules.
    1 Unplug the computer.
    2 Press the Power On button on the front of the unit.
    3 Open the side access panel.
    4 Remove the battery from the logic board.
    5 Wait at least 10 minutes before replacing the battery.
    6 Make sure the battery is installed in the correct +/-
    direction.
    7 Reassemble the computer and test the unit.
    Note:
    This procedure resets the computer’s PRAM. Be sure to
    check the computer’s time/date and other system parameter settings
     Cheers, Tom

Maybe you are looking for

  • Issue with OEM 11g Install in Windows 2003 server - Urgent help Required !!

    Hi All, I am encountering the following issue while installing the OEM 11.1.1.0 with Oracle WLS 10.3.2 with WDJ7 Patch installed and DB-11.2 and OS-Windows Server 2003. I have dropped the schema sysman and sysman_mds as specified in the install guide

  • Text issues...

    HI all, sorry if this has been asked here before: I while back I upgraded my Safari to a newer version. I am now running on 2.0.2 and somewhere along the way I noticed that certain foreign scripts were not showing up correctly in my browser. The main

  • Very strange bug: random keyboard disposition

    Hi, I just experimented a very strange bug. I have Arch installed with the XFCE desktop and Firefox3b05 from unstable. I was reading my favourite austrian newspaper online: http://derstandard.at. There's the possibility to post messages under the art

  • Weblogic managed servers connecting to the servers in different cluster

              Hi All,           We have a weired problem going on for a while. We have a cluster configuration           with an admin server and two managed servers. We have the similar configuration           in DEV, TEST and PROD. The problem is that

  • User / Group Problem

    WE run a 10.6.4 Server and have an issue with one user- No matter what we do we cannot seem to get them be be part of a Group. WE created a group and puut all Office members in the group- All OK- (This is using OD) All services fine DNS Fine, mail fi