Rx power low warning

Hi all,
I'm running on cisco 3750E series switch stack and getting following errors in log
"SFF8472-5-THRESHOLD_VIOLATION: Gi2/1/2: Rx power low warning; Operating value: -19.4 dBm, Threshold value: -17.0 dBm"
There are two ports in this module and other one is working fine. Can any one suggest a troubleshooting process for this regards .
Thanks in advance.
Best regards,
Nimoda Bandara

First troubleshooting step - upatch each connector in the path and clean the fiber ends using a fiber cleaning kit. Check the Rx power levels after each repatch ("show int trans det gi2/1/12")
Second step - if that doesn't fix it, have your cabling vendor come in and test the optical loss of the end-end link. Replace or repair and faulty connections or links.

Similar Messages

IPhone ~needs~ an AUDIBLE Battery-low warning during calls!!!

Okay, I've been needing to do this for quite some time. I'm actually surprised to find no one else has made this complaint yet (that I've been able to find).
I am absolutely sick and tired of my iPhone dying in the middle of a call because I was not alerted to the battery's status once it got to 20% or lower.
Does it make sense to anyone else that this happens? You're on a call, to your knowledge the battery was full or reasonably full before but now that you're talking you can't see the screen and you're not thinking about it so you keep talking. A while later your call drops and as you start to curse AT&T once again for the miserable coverage & constantly dropping calls you see that it's not them after all, but your phone's dead battery.
Come on Apple.... How hard can it possibly be to program in an AUDIBLE-IN-CALL alert that tells you that your battery is about to die. This is so basic and simple that I'm finding it hard to believe that this hasn't been addressed before now!!! Don't get me wrong, I love my iPhone. I will never need another phone as long as there is some variation of the iPhone in existence. But seriously, this is something that should have been dealt with AGES AGO.
I don't feel like I should even have to be saying this, but when you are in a call, your phone is against your ear, or if you use a headset of some kind, your phone is likely in a pocket. A Battery-Low warning that comes up on the screen is NOT going to be visible. There NEEDS to be a way for the iPhone to notify the user of a Battery-Low status that ACTUALLY GETS THEIR ATTENTION, not simply to remind them AFTER they've got it charging again that, yes, now that the phone is charging and back up from 0%, that the battery is still in-fact below 20%....
I really am a reasonably devoted Apple fan, but I am highly annoyed by this, because while I have had my iPhone 3G since the week they were released, whenever the above problem would happen to me I just assumed it would only be a matter of time before it got ironed out. I mean, come on, Apple's a smart company, and this is such a basic thing that lesser phones have had this programmed into their OS's going back to some of the very first cellular phones in existence, I know, I've owned a few.
Apple, Please. Fix this.
Thank you in advance.

thegadson6 wrote:
I just posted the same thing and it's now 2014!!!! I have endured this problem since my iphone 3gs.
And the option is still the same. Give feedback to Apple directly at www.apple.com/feedback.
Nothing anyone can do here, other than recommend that you be more aware of your battery life. Keep it connected to a power source when not in use, or if one is readily available when you are using it. I have a charger for home, one for my car, and one at work. I never see the battery low indicators, except in very rare cases. It's very rare for my battery to be below 50%.

MBP 13" "Trackpad Batteries Low" warning.

I'm getting a "Trackpad batteries low" warning on my 13" MBP. Are there specific trackpad batteries in a MBP? I did have an issue with trackpad performance about a year ago, which a Genius appointment determined was a bad battery. I assumed it was the MBP battery. Replaced it and problem solved. This time I have no apparent trackp[ad problem, but am now getting the low TP battery message.
Any comments?
Thanks.

Hi, thanks for your answer. I will take it to Genius Bar one day (it is 1000 km away from us), but in the meantime, I would like to investigate the "no warning at low power" issue. The battery does the same rattling nearly from the first minute. I took it to NextByte (premium reseller) where I bought it, but they are useless, their service is crap.
My main question is at the moment, why I don't get any low power warning? usually I don't let it go down under 30%, but it obviously can happen sometimes. As I am a graphic designer, it is not the best thing to lose 3-4 hours work.

Where has my "Battery Low" warning gone?

Where has my "Battery Low" warning gone?
When it got below 5% (I think) I used to get a warning come up. Now for about last 2 or 3 weeks it just shuts down with no warning. Plus when I attach the power lead & switch on the battery status says it is at 27%.
My MacBookPro2,2 is a 2006 unit from USA, running on
OS X ver. 10.6.8
Processor 2.16 GHz Intel Core 2 Duo
Memory 3 GB 667 MHz DDR2 SDRAM
We had a genuine battery fitted by Apple about 9mths ago.
Any Help will be appreciated
Tony

Reset the SMC. I'm pretty sure that model has a removeable battery, so you want this method:
Resetting the SMC on Mac portables with a battery you can remove
Note: Learn about removing the battery on MacBook and MacBook Pro.
Shut down the computer.
Disconnect the MagSafe power adapter from the computer, if it's connected.
Remove the battery.
Press and hold the power button for 5 seconds.
Release the power button.
Reconnect the battery and MagSafe power adapter.
Press the power button to turn on the computer.
You shouldn't be running the battery down that low on a regular basis though. It'll shorten the life of the battery.

10.5.7? Battery Low warning no longer appears

This is new. My 1.5Ghz G4 laptop powerbook goes to sleep without the usual early warning. I have run the battery down, reset the PMU, PRAM and NVRAM and the situation remains. The recent update is ominously coincident. Is it just me?
Ed

OK, it seems to be working again now. I let the PB run down again so it went to sleep without warning. Following the Apple support docs, I removed the battery and reset the PRAM, the reattached the battery and mains lead and booted into open firmware by holding down the power button until the prompt appeared, then I reset the NVRAM and booted.
I let the PB charge until the light went green and left it connected to mains for over 2 hours. Removed the mains lead and ran down the battery, it quit without warning again. Repeated the charge/wait/discharge cycle and this time the battery low warning DID appear.
Still charging at the moment so the power settings look kind of sensible, will post new settings when back on battery power.

MB.P1.V_CORE has exceeded low warning threshold.

Please login:
Serial line login timeout, returns to console stream.
Enter #. to return to ALOM.
SC Alert: VOLTAGE_SENSOR @ MB.P0.V_CORE has exceeded low warning threshold.
I forget the password, and I have already reset the battery, but I can't access the ok prompt.
Please help.
Thanks
Andry

Contact Sun, and open a service case.
http://www.sun.com/secure/contact/
You have a hardware problem.
You have little or no voltage to your cpu modules (MB.P0 and MB.P1),
which could be power supply(s), or the PSU backplane, or the systemboard.
This has nothing to do with forgetting a password.
If you have service contract coverage, they'll just take care of you.
If there's no warranty or service contract, then expect to be charged for service.
An online user-to-user discussion forum cannot help that computer system.
Edit:
I take back some of this response.
If you're simply unable to power up the system,
then you may need to go back and consult your records for whatever the password might be.
Download the documentation for your model computer
and refresh your memory on the ALOM commands,
such as for how to power-on the chassis.
http://sunsolve.sun.com/handbook_pub
Message was edited by:
rukbat

Rx Power Low on ME3400/1000BaseLX

We just had a new run of fiber patched into our cage and along with it, we installed a new SFP (non-Cisco, GLC-LH-SM-C2G) into our ME-3400EG-2CS-A (12.2(58)SE2). After installing the SFP I changed the media-type to SFP and can confirm through interface capabilities and interface status, that the transceiver is detected properly:
Port Name Status Vlan Duplex Speed Type
Gi0/2 notconnect routed full 1000 1000BaseLX SF
However, as you can see, there appears to be a Layer 1 issue causing the interface not coming up. The fiber is terminated into our cage using SC connectors, so we have a patch to LC. We have done some loopback tests to the other equipment and the interface comes up and we get good readings, before and through the patch. The run is only 535ft between the devices, so the long haul SFP is overkill but I wasn't able to identify any single mode short run SFPs, so LH/LX is what I went with. However, when we run the loopback to our new SFP, the interface doesn't come up.
That all being said, I am thinking that the SFP is just bad. We are going to be swapping it out as well as trying a Cisco brand and as a last resort a SC fiber media converter to go to copper to the switch and eliminate the LC patch. I just wanted to see if there were any other thoughts/things I might be missing. I don't have a lot of experience with fiber so I couldn't really pinpoint anything else outside of a faulty SFP.
My trans details are as such, indicating a Rx power issue:
High Alarm High Warn Low Warn Low Alarm
Temperature Threshold Threshold Threshold Threshold
Port (Celsius) (Celsius) (Celsius) (Celsius) (Celsius)
Gi0/2 30.9 85.0 75.0 0.0 -5.0
High Alarm High Warn Low Warn Low Alarm
Voltage Threshold Threshold Threshold Threshold
Port (Volts) (Volts) (Volts) (Volts) (Volts)
Gi0/2 3.27 3.57 3.47 3.15 3.13
Optical High Alarm High Warn Low Warn Low Alarm
Transmit Power Threshold Threshold Threshold Threshold
Port (dBm) (dBm) (dBm) (dBm) (dBm)
Gi0/2 -5.8 -2.0 -3.0 -9.0 -10.0
Optical High Alarm High Warn Low Warn Low Alarm
Receive Power Threshold Threshold Threshold Threshold
Port (dBm) (dBm) (dBm) (dBm) (dBm)
Gi0/2 -40.0 -2.0 -3.0 -20.0 -21.0
Also, just in case, I did run the "service unsupported-transceiver" command to no avail.
Thanks in advance

First troubleshooting step - upatch each connector in the path and clean the fiber ends using a fiber cleaning kit. Check the Rx power levels after each repatch ("show int trans det gi2/1/12")
Second step - if that doesn't fix it, have your cabling vendor come in and test the optical loss of the end-end link. Replace or repair and faulty connections or links.

%SFF8472-5-THRESHOLD_VIOLATION: Te1/1: Tx power low alarm; Operating value: -40.0 dBm, Threshold value: -12.2 dBm

Hi,
I am facing a strange problem in one of my Cisco Catalyst 4900M switch. We have a ten gig WAN link which went down (error-disabled) couple of weeks back with logs suggesting Low TX power.
Tried followingtroubleshooting approach, but it did not resolve the problem.
SFP replaced
Tried connecting the link on a different port.
Fibers tested and found to be OK
Performed loop test and was able to see the loop on both end of the P2P link.
Replaced the Cables between PTT demarcation till switch patch panel.
Switch Logs:
IOS Version: bootflash:cat4500e-entservices-mz.150-2.SG1.bin
Model: Cisco Catalyst 4900M
*Jun 19 12:32:36.582: %PM-4-ERR_DISABLE: link-flap error detected on Te1/1, putting Te1/1 in err-disable state
*Jun 19 12:34:04.154: %SFF8472-5-THRESHOLD_VIOLATION: Te1/1: Tx power low alarm; Operating value: -40.0 dBm, Threshold value: -12.2 dBm.
*Jun 19 12:44:04.254: %SFF8472-5-THRESHOLD_VIOLATION: Te1/1: Tx power low alarm; Operating value: -40.0 dBm, Threshold value: -12.2 dBm.
*Jun 19 12:54:04.354: %SFF8472-5-THRESHOLD_VIOLATION: Te1/1: Tx power low alarm; Operating value: -40.0 dBm, Threshold value: -12.2 dBm.
*Jun 19 13:04:04.454: %SFF8472-5-THRESHOLD_VIOLATION: Te1/1: Tx power low alarm; Operating value: -40.0 dBm, Threshold value: -12.2 dBm.
*Jun 19 13:14:04.558: %SFF8472-5-THRESHOLD_VIOLATION: Te1/1: Tx power low alarm; Operating value: -40.0 dBm, Threshold value: -12.2 dBm.
*Jun 19 13:24:04.658: %SFF8472-5-THRESHOLD_VIOLATION: Te1/1: Tx power low alarm; Operating value: -40.0 dBm, Threshold value: -12.2 dBm.
*Jun 19 13:34:04.761: %SFF8472-5-THRESHOLD_VIOLATION: Te1/1: Tx power low alarm; Operating value: -40.0 dBm, Threshold value: -12.2 dBm.
*Jun 19 13:44:04.861: %SFF8472-5-THRESHOLD_VIOLATION: Te1/1: Tx power low alarm; Operating value: -40.0 dBm, Threshold value: -12.2 dBm.
*Jun 19 13:54:04.961: %SFF8472-5-THRESHOLD_VIOLATION: Te1/1: Tx power low alarm; Operating value: -40.0 dBm, Threshold value: -12.2 dBm.
*Jun 19 14:04:05.061: %SFF8472-5-THRESHOLD_VIOLATION: Te1/1: Tx power low alarm; Operating value: -40.0 dBm, Threshold value: -12.2 dBm.
*Jun 19 14:14:05.161: %SFF8472-5-THRESHOLD_VIOLATION: Te1/1: Tx power low alarm; Operating value: -40.0 dBm, Threshold value: -12.2 dBm.
*Jun 19 14:24:05.261: %SFF8472-5-THRESHOLD_VIOLATION: Te1/1: Tx power low alarm; Operating value: -40.0 dBm, Threshold value: -12.2 dBm.
*Jun 19 14:34:05.361: %SFF8472-5-THRESHOLD_VIOLATION: Te1/1: Tx power low alarm; Operating value: -40.0 dBm, Threshold value: -12.2 dBm.
*Jun 19 14:44:05.461: %SFF8472-5-THRESHOLD_VIOLATION: Te1/1: Tx power low alarm; Operating value: -40.0 dBm, Threshold value: -12.2 dBm.
*Jun 19 14:54:05.561: %SFF8472-5-THRESHOLD_VIOLATION: Te1/1: Tx power low alarm; Operating value: -40.0 dBm, Threshold value: -12.2 dBm.
*Jun 19 15:04:05.661: %SFF8472-5-THRESHOLD_VIOLATION: Te1/1: Tx power low alarm; Operating value: -40.0 dBm, Threshold value: -12.2 dBm.
Switch1#
Switch1#
Switch1#
Switch1#sh int te1/1
TenGigabitEthernet1/1 is down, line protocol is down (err-disabled)
Hardware is Ten Gigabit Ethernet Port, address is 2c54.2de6.5100 (bia 2c54.2de6.5100)
Description: ***P2P ***
MTU 1500 bytes, BW 10000000 Kbit, DLY 10 usec,
     reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 10Gb/s, link type is auto, media type is 10GBase-LR
input flow-control is off, output flow-control is off
ARP type: ARPA, ARP Timeout 04:00:00
Last input 02:39:04, output never, output hang never
Last clearing of "show interface" counters 2w0d
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
     2367 packets input, 199072 bytes, 0 no buffer
     Received 2367 broadcasts (2367 multicasts)
     1 runts, 0 giants, 0 throttles
     5 input errors, 4 CRC, 0 frame, 0 overrun, 0 ignored
     0 input packets with dribble condition detected
     5951 packets output, 453948 bytes, 0 underruns
     0 output errors, 0 collisions, 13 interface resets
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out
Switch1#
Switch1#sh int te1/1 transceiver detail
ITU Channel not available (Wavelength not available),
Transceiver is internally calibrated.
mA: milliamperes, dBm: decibels (milliwatts), NA or N/A: not applicable.
++ : high alarm, + : high warning, - : low warning, -- : low alarm.
A2D readouts (if they differ), are reported in parentheses.
The threshold values are calibrated.
                              High Alarm High Warn Low Warn   Low Alarm
          Temperature         Threshold   Threshold Threshold Threshold
Port       (Celsius)          (Celsius)   (Celsius) (Celsius) (Celsius)
Te1/1       30.7                74.0        70.0         0.0       -4.0
                              High Alarm High Warn Low Warn   Low Alarm
           Voltage            Threshold   Threshold Threshold Threshold
Port       (Volts)            (Volts)     (Volts)    (Volts)    (Volts)
Te1/1      0.00                   N/A         N/A         N/A        N/A
           Optical            High Alarm High Warn Low Warn   Low Alarm
           Transmit Power     Threshold   Threshold Threshold Threshold
Port       (dBm)              (dBm)       (dBm)      (dBm)      (dBm)
Te1/1      -40.0                 4.4         0.4        -8.2      -12.2
           Optical            High Alarm High Warn Low Warn   Low Alarm
           Receive Power      Threshold   Threshold Threshold Threshold
Port       (dBm)              (dBm)       (dBm)      (dBm)      (dBm)
Te1/1      -12.3                 4.4         0.4       -14.4      -18.4

I did replace the SFP with a new one.
Interface Te1/2 is up and working.
SESK_P2P10G-4900MSOD-SW1#sh int te1/2 transceiver de
ITU Channel not available (Wavelength not available),
Transceiver is internally calibrated.
mA: milliamperes, dBm: decibels (milliwatts), NA or N/A: not applicable.
++ : high alarm, + : high warning, - : low warning, -- : low alarm.
A2D readouts (if they differ), are reported in parentheses.
The threshold values are calibrated.
                              High Alarm High Warn Low Warn   Low Alarm
          Temperature         Threshold   Threshold Threshold Threshold
Port       (Celsius)          (Celsius)   (Celsius) (Celsius) (Celsius)
Te1/2       34.6                74.0        70.0         0.0       -4.0
                              High Alarm High Warn Low Warn   Low Alarm
           Voltage            Threshold   Threshold Threshold Threshold
Port       (Volts)            (Volts)     (Volts)    (Volts)    (Volts)
Te1/2      3.22                   N/A         N/A         N/A        N/A
           Optical            High Alarm High Warn Low Warn   Low Alarm
           Transmit Power     Threshold   Threshold Threshold Threshold
Port       (dBm)              (dBm)       (dBm)      (dBm)      (dBm)
Te1/2       -1.5                 4.4         0.4        -8.2      -12.2
           Optical            High Alarm High Warn Low Warn   Low Alarm
           Receive Power      Threshold   Threshold Threshold Threshold
Port       (dBm)              (dBm)       (dBm)      (dBm)      (dBm)
Te1/2       -3.6                 4.4         0.4       -14.4      -18.4

SFP+ Voltage low warning useless logging?

Hi
4500X switch is continuously logging following errors from one port. SFP in the port is Cisco original SFP+ 10GBase-LR.
Should the SFP be replaced or is there a way to get rid of this useless error cluttering the log?
Thanks
Feb 25 13:26:30.618 eet: %SFF8472-5-THRESHOLD_VIOLATION: Te1/1/15: Voltage low warning; Operating value: 3.09 V, Threshold value: 3.10 V.
switch#sh int Te1/1/15 transceiver detail
ITU Channel not available (Wavelength not available),
Transceiver is internally calibrated.
mA: milliamperes, dBm: decibels (milliwatts), NA or N/A: not applicable.
++ : high alarm, + : high warning, - : low warning, -- : low alarm.
A2D readouts (if they differ), are reported in parentheses.
The threshold values are calibrated.
                              High Alarm High Warn Low Warn   Low Alarm
          Temperature         Threshold   Threshold Threshold Threshold
Port       (Celsius)          (Celsius)   (Celsius) (Celsius) (Celsius)
Te1/1/15    23.4                75.0        70.0         0.0       -5.0
                              High Alarm High Warn Low Warn   Low Alarm
           Voltage            Threshold   Threshold Threshold Threshold
Port       (Volts)            (Volts)     (Volts)    (Volts)    (Volts)
Te1/1/15   3.09                  3.60        3.50        3.10       3.00
           Optical            High Alarm High Warn Low Warn   Low Alarm
           Transmit Power     Threshold   Threshold Threshold Threshold
Port       (dBm)              (dBm)       (dBm)      (dBm)      (dBm)
Te1/1/15    -3.1                 3.4         0.4        -8.2      -12.2
           Optical            High Alarm High Warn Low Warn   Low Alarm
           Receive Power      Threshold   Threshold Threshold Threshold
Port       (dBm)              (dBm)       (dBm)      (dBm)      (dBm)
Te1/1/15    -4.8                 3.4         0.4       -14.4      -18.4

Hi,
The answer from TAC:
Explanation:
This is expected behaviour unless these ports are connected and do not have db loss. If we have the SFP inserted in fibre ports and do not have optical fibre connected further we receive threshold violation errors.
Action Plan:
To avoid threshold violation messages on optical ports that are not connected, you should admin shut the port down.
You can also remove the SFP inserted on these ports to stop the error message.
HTH

Sun fire T1000 - VOLTAGE_SENSOR at MB/V_+3V3STBY has exceeded low warning t

Hi everyone,
I am newbie in Sun server and Solaris OS and I have trouble with our old T1000 server. When I power on server, I get message from ALOM console: SC Alert: VOLTAGE_SENSOR at MB/V_+3V3STBY has exceeded low soft shutdown threshold. I read this topic: Re: Error: VOLTAGE_SENSOR at MB/V_+3V3STBY has exceeded low warning threshold and I want to get my serial number of power supply to determine if this alert is factory fault. Can I get it with some command? I can't remove cover from server. Is this alert critical?
Also I have else one problem with T1000 if i want to start Solaris OS, "booting" stuck in loop:
Loading the runtime image...
ALOM - POST run incomplete previously, no POST this time
ALOM BOOTMON v1.1.1
ALOM Build Release: 001
Reset register: e0000000 EHRS ESRS LLRS
Check for Handshake
Returned from Boot Monitor and Handshake
About this problem I read this topic Re: V240 Hangs at loading runtime image but without solution. It should be something together with problem of voltage_sensor?
Can somebody help me please? I don't know which problem I focus on, I need boot into Solaris.
Thank you for reply.

879613 wrote:
Hi everyone,
I am newbie in Sun server and Solaris OS and I have trouble with our old T1000 server. When I power on server, I get message from ALOM console: SC Alert: VOLTAGE_SENSOR at MB/V_+3V3STBY has exceeded low soft shutdown threshold. I read this topic: Re: Error: VOLTAGE_SENSOR at MB/V_+3V3STBY has exceeded low warning threshold and I want to get my serial number of power supply to determine if this alert is factory fault. Can I get it with some command? I can't remove cover from server. Is this alert critical?
Also I have else one problem with T1000 if i want to start Solaris OS, "booting" stuck in loop:
Loading the runtime image...
ALOM - POST run incomplete previously, no POST this time
ALOM BOOTMON v1.1.1
ALOM Build Release: 001
Reset register: e0000000 EHRS ESRS LLRS
Check for Handshake
Returned from Boot Monitor and Handshake
About this problem I read this topic Re: V240 Hangs at loading runtime image but without solution. It should be something together with problem of voltage_sensor?
Can somebody help me please? I don't know which problem I focus on, I need boot into Solaris.
Thank you for reply.As described in Re: Error: VOLTAGE_SENSOR at MB/V_+3V3STBY has exceeded low warning threshold:
... your power supply has failed. You need to replace it.
Since all T1000's are EOL, you will need to buy a new one unless you have a service contract that covers repair support on the entire chassis.
No, you cannot type a command to get serial numbers or part numbers of the power supply. Power supplies for such a system are "too stupid" to be able to answer a software inquiry probe. The PSU design is simple. It will work or it will not work.
If you think there is some sort of a recall on those power supplies, you will need to contact Technical Support directly. These forums are NOT Tech Support.
Opinion? There is no such recall, or if there ever was the time has long ago expired when someone could take advantage of it.
Your system doesn't boot because the PSU has failed. Gert the computer repaired. Go to eBay if you must, but you will need to buy replacement parts.

Why don't I get a battery low warning anymore, laptop just turns off?

My laptop is only just over a year old and I no longer get a battery low warning message. My computer just switches off. Have I disabled the warning somehow?
The battery lasts for about an hour and a half which isn't great. This is what System Profiler says about it:
Model Information:
Serial Number: SMP-bq20z951-3a6c-fac
Manufacturer: SMP
Device name: bq20z951
Pack Lot Code: 0000
PCB Lot Code: 0000
Firmware Version: 002a
Hardware Revision: 000a
Cell Revision: 0100
Charge Information:
Charge remaining (mAh): 1427
Fully charged: No
Charging: No
Full charge capacity (mAh): 3751
Health Information:
Cycle count: 339
Condition: Good
Battery Installed: Yes
Amperage (mA): -1921
Voltage (mV): 10690
Any suggestions would be appreciated. Thanks.

You have the removable battery? In that case, you can expect it to have up to 80% of original capacity at 300 cycles. You have 390 cycles, and it's probably got less than 80% capacity if it only lasts 1 1/2 hour. It's very likely just at the end of its useful life. If you go to an Apple Store, they can stress test it for you, and very likely you will be told you need a new one.
Coconut Battery will show you the current battery capacity vs. the original battery capacity. Mine has 88% capacity after 259 cycles, but the last time I tried to calibrate it, my Mac shut off instead of going to sleep, although I did get the warning. I don't know if you can really calibrate it if it shuts down suddenly. The health on mine didn't change after the last shutdown.
Good luck!

T510 Battery Power Low.. Plug in power issues

I move from location to another location disconnect the power and then reconnect the power on laptop T510.
After a few hours’ work I get the message “Battery Power Low.. Plug in power”
The power adapter was plugged in from the start… All I do us remove the power connector and re-attached.. Then all is OK..
The battery icon in lower screen shows 97% available (plugged in, not charging)
Finding this scarey.. If I have a bettery or power failure at customer remote site.. I'm a telecom field engineer...

That's no problem at all PKcool.
Here are the drivers you will need to install on your computer:
Power Manager for Windows 7:
http://support.lenovo.com/en_US/downloads/detail.page?DocID=DS014924
ThinkPad Power Manager Patch module for Windows 7:
http://support.lenovo.com/en_US/downloads/detail.page?DocID=DS018811
I would suggest going into your Programs and features and uninstalling the Power Manager from your computer, same goes for the drivers associated with it in device manager.
Once uninstalled I would then download the drivers from the links above. This will give your computer a fresh install of these drivers.
Please let me know of the progress.
Hope this helps,
Alex
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Battery Low Warning

3 Times now my Mid 2009 15" MBP has shut down without any warning that the battery is about to quit
Is there any way to set a battery low warning say for when there is 10% left etc?
Cheers
Carl

I use "Slim Battery Monitor"
It's cool!
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CET: %SFF8472-5-THRESHOLD_VIOLATION: Te1/1: Rx power high warning; Operating value: -0.9 dBm, Threshold value: -1.0 dBm.

Hei
we have some switches that are connected with our nexus switches via SFP-10GLR. all switches are ok but only one is getting warnings in the logs saying: CET: %SFF8472-5-THRESHOLD_VIOLATION: Te1/1: Rx power high warning; Operating value: -0.9 dBm, Threshold value: -1.0 dBm.
all the SFP,s are same in alle switches.

%SFF8472-5-THRESHOLD_VIOLATION Vs SFF8472-5-THRESHOLD_VIOLATION.
The first one is printed for the ports that are configured, but not connected/active.
You can avoid such error messages simply shutting down unused ports.
The latter indicates that there is a real threshold violation.
For more details on these error messages, check out.
http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/15.1/XE_330SG/system/messages/emsg.html#wp1634341
Action Plan:
========
Can you please try clearing the interface counters, so that we can notice the frequency of errors.
Also I researched on the logs that we are observing on our device and have seen cases where the issue has been resolved by physically removing and reinserting transceiver.
Please refer below link for more details:
http://www.cisco.com/cgi-bin/Support/Errordecoder/index.cgi?action=search&counter=0&paging=5&links=reference&index=all&query=SFF8472-5-THRESHOLD_VIOLATION

Cat 4500 showing error %SFF8472-5-THRESHOLD_VIOLATION: Te3/1: Rx power low alarm

Hello Friends,
i have catalyst 4503 series switch and i am trying to configure it, there is not any physical media connected to the switch yet.
but i have installed the X2-10GB-SM modules in its module (WS-X4606-X2-E)
without any cable or connectivity with other switches.
i am facing the error which is
%SFF8472-5-THRESHOLD_VIOLATION: Te3/1: Rx power low alarm; Operating value: -30.0 dBm, Threshold value: -18.4 dBm.
*Jul 18 07:34:13.710: %SFF8472-5-THRESHOLD_VIOLATION: Te3/2: Rx power low alarm; Operating value: -40.0 dBm, Threshold value: -13.9 dBm.
*Jul 18 07:34:13.710: %SFF8472-5-THRESHOLD_VIOLATION: Te3/3: Rx power low alarm; Operating value: -40.0 dBm, Threshold value: -13.9 dBm
any idea to get off this problem?
thanks

Gents,
Looks like something is amuck as I just received a new 4507 as well and I am getting similar messages. Anyone have an idea as to what is going on? I too have not connected anything to this yet, just doing a burn in. I am installing into a cancer center and need to have this ready by the first.
regards,
Stephen
Below is the info needed:
CC-4507RE#sh mod
Chassis Type : WS-C4507R+E
Power consumed by backplane : 40 Watts
Mod Ports Card Type                             Model             Serial No.
---+-----+--------------------------------------+------------------+-----------
1   48 10/100/1000BaseT UPOE E Series         WS-X4748-UPOE+E   CAT1621L24P
2   48 10/100/1000BaseT UPOE E Series         WS-X4748-UPOE+E   CAT1621L24M
3     4 Sup 7-E 10GE (SFP+), 1000BaseX (SFP)   WS-X45-SUP7-E     CAT1617L5UY
4     4 Sup 7-E 10GE (SFP+), 1000BaseX (SFP)   WS-X45-SUP7-E     CAT1619L1D3
5   12 10GE SFP+                             WS-X4712-SFP+E     CAT1618L1LD
M MAC addresses                   Hw Fw           Sw               Status
--+--------------------------------+---+------------+----------------+---------
1 a493.4c9f.a37c to a493.4c9f.a3ab 1.1                               Ok
2 a493.4c9f.a43c to a493.4c9f.a46b 1.1                               Ok
3 a493.4cd4.32c0 to a493.4cd4.32c3 2.1 15.0(1r)SG5 03.03.00.SG      Ok
4 a493.4cd4.32c4 to a493.4cd4.32c7 2.1 15.0(1r)SG5 03.03.00.SG     Ok
5 a493.4c55.6cb8 to a493.4c55.6cc3 1.1                               Ok
Mod Redundancy role     Operating mode     Redundancy status
----+-------------------+-------------------+----------------------------------
3   Active Supervisor   SSO                 Active
4   Standby Supervisor SSO                 Standby hot
ROM: 15.0(1r)SG5
CC-4507RE uptime is 2 weeks, 5 hours, 47 minutes
Uptime for this control processor is 2 weeks, 5 hours, 49 minutes
System returned to ROM by power-on
System image file is "bootflash:cat4500e-universalk9.SPA.03.03.00.SG.151-1.SG.bi
n"
Jawa Revision 7, Snowtrooper Revision 0x0.0x1C
*Jul 20 07:24:07.884 UTC: %SFF8472-5-THRESHOLD_VIOLATION: Te3/1: Rx power low al
arm; Operating value: -40.0 dBm, Threshold value:-12.4 dBm.
*Jul 20 14:28:18.155 UTC: %SFF8472-5-THRESHOLD_VIOLATION: Te4/1: Rx power low ala
rm; Operating value: -40.0 dBm, Threshold value: -12.4 dBm.

Rx power low warning

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