Harddisk LED continously blinking

Hi
My Harddisk LED is blinking about once every second. This is not really a critical problem, but it's just annoying me cause it's clearly too often.
I read the topic https://bbs.archlinux.org/viewtopic.php?pid=765666 but none of the suggested worked here.
Can't identify a process with iotop and vmstat does not notice these accesses either.
Further I have noatime and now even commit=60 in my fstab.
I tried to stop all daemons, exept network and ssh I need to connect, and stopped X but it had no effect. Lastly I killed systemd-udevd, without effect.
I use ext4, this may be the problem ?
Here's my "normal" ps ax (with daemons etc.):
PID TTY STAT TIME COMMAND
1 ? Ss 0:00 init [5]
2 ? S 0:00 [kthreadd]
3 ? S 0:00 [ksoftirqd/0]
6 ? S 0:00 [migration/0]
7 ? S 0:00 [watchdog/0]
8 ? S 0:00 [migration/1]
10 ? S 0:00 [ksoftirqd/1]
11 ? S 0:00 [watchdog/1]
12 ? S< 0:00 [cpuset]
13 ? S< 0:00 [khelper]
14 ? S 0:00 [kdevtmpfs]
15 ? S< 0:00 [netns]
16 ? S 0:00 [sync_supers]
17 ? S 0:00 [bdi-default]
18 ? S< 0:00 [kblockd]
44 ? S 0:00 [khungtaskd]
45 ? S 0:00 [kswapd0]
46 ? SN 0:00 [ksmd]
47 ? SN 0:00 [khugepaged]
48 ? S 0:00 [fsnotify_mark]
49 ? S< 0:00 [crypto]
52 ? S< 0:00 [kthrotld]
59 ? S 0:00 [kworker/1:2]
60 ? S< 0:00 [deferwq]
109 ? S 0:00 [khubd]
111 ? S< 0:00 [ata_sff]
113 ? S 0:00 [scsi_eh_0]
114 ? S 0:00 [scsi_eh_1]
115 ? S 0:00 [kworker/u:2]
118 ? S 0:00 [scsi_eh_2]
119 ? S 0:00 [scsi_eh_3]
122 ? S 0:00 [kworker/u:5]
123 ? S 0:00 [scsi_eh_4]
124 ? S 0:00 [scsi_eh_5]
130 ? S 0:00 [kworker/0:1]
133 ? S 0:00 [scsi_eh_6]
134 ? S 0:00 [scsi_eh_7]
144 ? S 0:00 [jbd2/sda3-8]
145 ? S< 0:00 [ext4-dio-unwrit]
213 ? S< 0:00 [rpciod]
223 ? S< 0:00 [nfsiod]
307 ? S< 0:00 [kpsmoused]
308 ? S 0:00 [kworker/0:2]
310 ? S< 0:00 [edac-poller]
317 ? S< 0:00 [kvm-irqfd-clean]
350 ? S 0:00 [jbd2/sda4-8]
351 ? S< 0:00 [ext4-dio-unwrit]
352 ? S 0:00 [jbd2/sda1-8]
353 ? S< 0:00 [ext4-dio-unwrit]
456 ? S 0:00 supervising syslog-ng
457 ? Ss 0:00 /usr/sbin/syslog-ng
539 ? Ss 0:00 dhcpcd -q eth0
585 ? Ss 0:00 /usr/sbin/crond
630 ? Ss 0:00 /usr/bin/ntpd -g -u ntp -p /run/ntpd.pid
824 ? Ss 0:00 dbus-daemon --system
875 ? Ss 0:00 /usr/sbin/sshd
921 ? Ss 0:00 /usr/bin/rpcbind
970 ? Ss 0:00 /usr/sbin/rpc.statd
985 ? Ss 0:00 /usr/sbin/rpc.idmapd
1040 ? S 0:00 [lockd]
1041 ? S< 0:00 [nfsd4]
1042 ? S< 0:00 [nfsd4_callbacks]
1043 ? S 0:00 [nfsd]
1044 ? S 0:00 [nfsd]
1045 ? S 0:00 [nfsd]
1046 ? S 0:00 [nfsd]
1047 ? S 0:00 [nfsd]
1048 ? S 0:00 [nfsd]
1049 ? S 0:00 [nfsd]
1050 ? S 0:00 [nfsd]
1058 ? Ss 0:00 /usr/sbin/rpc.mountd
1067 tty1 Ss+ 0:00 /sbin/agetty -8 -s 38400 tty1 linux
1068 tty2 Ss+ 0:00 /sbin/agetty -8 -s 38400 tty2 linux
1069 tty3 Ss+ 0:00 /sbin/agetty -8 -s 38400 tty3 linux
1070 tty4 Ss+ 0:00 /sbin/agetty -8 -s 38400 tty4 linux
1071 tty5 Ss+ 0:00 /sbin/agetty -8 -s 38400 tty5 linux
1072 tty6 Ss+ 0:00 /sbin/agetty -8 -s 38400 tty6 linux
1073 ? Ssl 0:00 /usr/sbin/gdm-binary -nodaemon
1076 ? Sl 0:00 /usr/lib/gdm/gdm-simple-slave --display-id /org/gnome/DisplayManager/Display1
1078 tty7 Ss+ 0:02 /usr/bin/Xorg :0 -br -verbose -auth /var/run/gdm/auth-for-gdm-wqE5yF/database -nolisten tcp vt7
1089 ? Sl 0:00 gdm-session-worker [pam/gdm-autologin]
1092 ? Sl 0:00 /usr/lib/accountsservice/accounts-daemon
1096 ? Sl 0:00 /usr/lib/polkit-1/polkitd --no-debug
1100 ? Sl 0:00 /usr/sbin/console-kit-daemon --no-daemon
1174 ? Ss 0:00 /usr/bin/openbox --startup /usr/lib/openbox/openbox-autostart OPENBOX
1190 ? S 0:00 /usr/bin/dbus-launch --sh-syntax --exit-with-session
1191 ? Ss 0:00 /usr/bin/dbus-daemon --fork --print-pid 5 --print-address 7 --session
1196 ? S<l 0:00 /usr/bin/pulseaudio --start
1198 ? SNl 0:00 /usr/lib/rtkit/rtkit-daemon
1203 ? S 0:00 /usr/lib/pulse/gconf-helper
1205 ? S 0:00 /usr/lib/GConf/gconfd-2
1208 ? Ss 0:00 /usr/bin/ssh-agent -- /usr/bin/openbox-session
1211 ? S 0:00 /bin/sh /usr/lib/openbox/openbox-autostart OPENBOX
1217 ? S 0:00 sh /home/cem/.config/openbox/autostart.sh
1219 ? S 0:00 tint2
1221 ? S 0:00 xterm
1223 pts/0 Ss+ 0:00 bash
1228 ? S 0:00 [kworker/1:0]
1229 ? Ss 0:00 sshd: cem [priv]
1238 ? S 0:00 sshd: cem@pts/1
1239 pts/1 Ss 0:00 -bash
1250 pts/1 S 0:00 su
1251 pts/1 S 0:00 bash
1255 ? S 0:00 [kworker/1:1]
1269 pts/1 R+ 0:00 ps ax
I see [ext4-dio-unwrit] and [kworker/1:0] for example, but these are kernel processes I suppose ?
No idea about them... I have.
Regards
Edit: +fstab:
# /etc/fstab: static file system information
# <file system> <dir> <type> <options> <dump> <pass>
tmpfs /tmp tmpfs nodev,nosuid 0 0
/dev/sda4 /home ext3 defaults,noatime,commit=60 0 1
LABEL=BOOT /boot ext3 defaults,noatime,commit=60 0 1
LABEL=ROOT / ext3 defaults,noatime,commit=60 0 1
LABEL=SWAP1 swap swap defaults 0 0
LABEL=SWAP2 swap swap defaults 0 0
/dev/sdb2 /home/cem/MOUNT_IPOD vfat noauto,user 0 0
/dev/sdb1 /home/cem/MOUNT_NATEL vfat noauto,user 0 0
/dev/sdb /home/cem/MOUNT_STICK vfat noauto,user 0 0
Last edited by rebootl (2012-09-14 13:58:02)

Unfortunately, no luck. I tried what you suggested:
iotop -Pao doesn't register these flickers.
It shows jbd2/sda3-8 but not that often, I would say it's fine.
It's only a very short flickering, I can't hear anything. So, I don't know if there's really something written...
I tried removing defaults first and even put barriers=0 in but it had no effect...
Dunno, it's strange...
here ps ax w/o daemons etc... (exept ssh and network i need)
PID TTY STAT TIME COMMAND
1 ? Ss 0:00 init [3]
2 ? S 0:00 [kthreadd]
3 ? S 0:00 [ksoftirqd/0]
6 ? S 0:00 [migration/0]
7 ? S 0:00 [watchdog/0]
8 ? S 0:00 [migration/1]
10 ? S 0:00 [ksoftirqd/1]
11 ? S 0:00 [watchdog/1]
12 ? S< 0:00 [cpuset]
13 ? S< 0:00 [khelper]
14 ? S 0:00 [kdevtmpfs]
15 ? S< 0:00 [netns]
16 ? S 0:00 [sync_supers]
17 ? S 0:00 [bdi-default]
18 ? S< 0:00 [kblockd]
44 ? S 0:00 [khungtaskd]
45 ? S 0:00 [kswapd0]
46 ? SN 0:00 [ksmd]
47 ? SN 0:00 [khugepaged]
48 ? S 0:00 [fsnotify_mark]
49 ? S< 0:00 [crypto]
52 ? S< 0:00 [kthrotld]
60 ? S< 0:00 [deferwq]
99 ? S 0:00 [khubd]
101 ? S< 0:00 [ata_sff]
103 ? S 0:00 [scsi_eh_0]
104 ? S 0:00 [scsi_eh_1]
108 ? S 0:00 [scsi_eh_2]
109 ? S 0:00 [scsi_eh_3]
111 ? S 0:00 [kworker/u:4]
112 ? S 0:00 [kworker/u:5]
113 ? S 0:00 [scsi_eh_4]
114 ? S 0:00 [scsi_eh_5]
120 ? S 0:00 [kworker/0:1]
123 ? S 0:00 [scsi_eh_6]
124 ? S 0:00 [scsi_eh_7]
128 ? S 0:00 [kworker/0:2]
135 ? S 0:00 [jbd2/sda3-8]
136 ? S< 0:00 [ext4-dio-unwrit]
204 ? S< 0:00 [rpciod]
205 ? S< 0:00 [nfsiod]
298 ? S< 0:00 [edac-poller]
307 ? S< 0:00 [kpsmoused]
308 ? S< 0:00 [kvm-irqfd-clean]
343 ? S 0:00 [jbd2/sda4-8]
344 ? S< 0:00 [ext4-dio-unwrit]
345 ? S 0:00 [jbd2/sda1-8]
346 ? S< 0:00 [ext4-dio-unwrit]
532 ? Ss 0:00 dhcpcd -q eth0
868 ? Ss 0:00 /usr/sbin/sshd
1060 tty1 Ss+ 0:00 /sbin/agetty -8 -s 38400 tty1 linux
1061 tty2 Ss+ 0:00 /sbin/agetty -8 -s 38400 tty2 linux
1062 tty3 Ss+ 0:00 /sbin/agetty -8 -s 38400 tty3 linux
1063 tty4 Ss+ 0:00 /sbin/agetty -8 -s 38400 tty4 linux
1064 tty5 Ss+ 0:00 /sbin/agetty -8 -s 38400 tty5 linux
1065 tty6 Ss+ 0:00 /sbin/agetty -8 -s 38400 tty6 linux
1222 ? Ss 0:00 sshd: cem [priv]
1231 ? S 0:00 sshd: cem@pts/1
1232 pts/1 Ss 0:00 -bash
1259 ? S 0:00 [kworker/0:0]
1267 ? S 0:00 [kworker/1:2]
1272 ? S 0:00 [kworker/1:3]
1273 ? S 0:00 [flush-8:0]
1284 pts/1 S 0:00 su
1285 pts/1 S 0:00 bash
1301 ? S 0:00 [kworker/1:0]
2242 pts/1 R+ 0:00 ps ax
So, it has to be one of these...?
Thanks anyways !

Similar Messages

Power Injector AIR-PWRINJ1500-2 LEDs Continously blinking

Hi,
I am facing a strange problem with the AIR-PWRINJ1500-2.
At times the injector behaves perfectly fine but once Switched Off & again Powered On, all 3 LEDs, never become stable & blink continuously.
Has someone seen such a behavior ? Pls, share.
Thanks in advance.

Hey Ahmed,
My understanding is the power injector is not supported for the 1552CU and your only powering options are the following:
1552C/1552CU
• 40-90 VAC, 50-60 Hz, quasi-square wave, Power over Cable
• 12 VDC
http://www.cisco.com/en/US/prod/collateral/wireless/ps5679/ps11451/data_sheet_c78-641373.html
Cheers,
Erwin

Cisco AIR -LAP-1142 status led continuosly blinking green

hello all,
I have implemented around 46 access points (AIR-LAP-1142) in a customer site and i can see that the led of some of the access points are continously blinking green and no clients are associated to these access points. I have a WISM which has two controllers in it. I can see the particular aps to be joined in the controller. But my question is that why its not giving me any signal. Please help me as this is very urgent!!.. even if am under the access point the signal is not there. I checked the radio status of the aps and its up. The WLANs are activated from the controller also. Please help mee....!!

continously blinking green
This could mean that the AP hasn't joined the WiSM yet.
Can you console into the AP? If you can, reboot the AP and post the entire power up and bootup process and include the "sh logs".

MacBook Pro won't turn on after crash. Magsafe charger LED light blinking rapidly

Hi. I hope you can help me.
I have a macbook Pro 13", from september 2012, which crashed earlier today:
I was charging my iphone through USBport on my macbook (not an Apple USB-iPhone power-cable) .
My MacBook was charging through the magsafe charger (about 30% power i think).
I took the phone out to make a call, when that was done, I reconnected the phone to my mac for further charging.
My MacBook crashed instantly. I took out the USB cable, tried to turn on my mac, but nothing happened. There was no light in the magsafe LED.
The crashing has happened before, when I've been charging my phone through USB connections, but I've always been able to turn my mac back on.
This time nothing happened when I pushed the power button. It had comepletely shorted out.
BTW. Earlier today I received a "storage almost full" warning on my mac, and I was actually in the middle of cleaning that up (deleting downloads and trash files).
Typical and just my luck!
Now, a few hours later, I tried restoring SMC (shift+ctrl+alt+power), and now the charger LED is blinking rapidly (but faintly) orange.
Do you have any ideas on how to fix this? All applestores nearby are closed today, I live in Denmark.
Thank you so much in advance!
Kind regards Emilie

Try the SMC reset again:
https://support.apple.com/en-us/HT201295
Then try a NVRAM reset:
https://support.apple.com/en-us/HT204063
Then try a safe boot:
https://support.apple.com/en-us/HT201262
If no success, then you will have to take it in for service.
Ciao.

G62-454ca won't turn on.power led and wireless network led keeps blinking every 3-4 seconds

Please help.when I try to turn on nothing happens.Only power LED and wireless network led keeps blinking every 4 seconds

According to the message you have recently posted I would like to confirm that this is a hardware issue and I strongly recommend you to immediately Contact HP Technical Support over the Phone for further assistance without any delay to get your Notebook diagnosed and serviced by an authorized HP Certified Engineer
You can also Check your warranty Here to verify the warranty status
Hope this helps, for any further queries reply to the post and feel free to join us again
**Click the KUDOS star on left to say Thanks**
Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.
Thank You,
K N R K
Although I am an HP employee, I am speaking for myself and not for HP

Led stops blinking

Some minutes after getting a message (I think any message - sms, BBM, email...), red led stops blinking. Is this okay or is there something wrong? I have a Q10.

With the Z10, it does stop after a few minutes, and it is done on purpose to save battery life
Using the Playbook and the Z10 and the Z30 and loving them
Martin

Hp pavillion dv7-3065 laptop will not turn on - led light blinks, ac's light on?

HP Pavillion dv7-3065 with Windows 7.
I fell asleep two days ago, and when I woke up yesterday, my laptop was off. (The battery very well may have died while I was sleeping, or just shut off on its own. I don't know which.) I tried turning it on, but nothing happened... except for the lightning bolt (LED light) blinking three times. No noises inside, blank screen, nothing aside those three blinks.
For the record, I've already tried removing the battery. I've also tried removing the battery, removing the AC cord, and holding in the power button for 30+ seconds. It didn't work.
I've tried removing the battery and running off AC. This still doesn't work. However, the laptop recognizes that it's plugged in; the little light by it is consistantly on. I've also tested my laptop with another AC adapter just to be safe. Nothing.
My laptop has been tested without harddrive/etc, but I'm still at a blank. I don't know what else to do. My boyfriend, who's in school to be an IT, took it into his teacher, who messed around with it, and came up with a few conclusions.
He believes that because the lights are flashing, he's confidant that my motherboard is fine. He said to replace the battery, and if that doesn't work, solder the ...I forgot what exactly, but basically it's the charging connection. I forget what exactly. My apologies there.
However... I feel like replacing the battery would be a waste of money... Because regardless of battery, the laptop should still turn on with the AC cord. My boyfriend intends to bring this up and ask if he can just skip to the other thing anyway, but he doesn't have that class again for a week, and I'm at a loss of what else to do. Aside from that, his teacher says there's a limited number of other things that could be wrong...
I was hoping to get some more input...

This won't help you out, but I am experiencing the same problem... I am gonna look on this post to see if you get an answer!
I have the same problem! Except I did manage to get mine to turn on. After doing the hold the power down thing. Nothing happened. I did leave the lap top on cause I was irritated and walked away, about an hour later it came on. It let me turn it on and off a few times. Then stopped. Then leaving it sit on stopped working too

StoragEdge 3510 FC HDD LEDs are blinking continuously

Hi,
I am facing problem with Sun StoragEdge 3510FC with 146x12 and 2 arrays of RAID -5.
Problem Descrp: After upgrading Firmware from 3.27r to 413c. the HDD LEDs are blinking continuously but this problem is started after upgrading the New Firmware.
Please let me know if anyone knows the solution.
regards,
vpatil.

Sounds like the 'media scan' functionality of the new firmware. You can check its running with show media scan from sccli. You can also abort it if you wish

Sony TV KDL-60W840B Red LED is blinking 2 times and TV wont turn on

Hi, I have a Sony TV KDL-60W840B which I bought 13 months ago for the world cup soccer (gift for my husand). Now it is not working and like you can read in the subject line once the TV is plugged into a power strip the red led start to blink twice and pause, when I try to turn on it not do it. Please help me because it is not fear that just when the warrenty finished the TV is not working, and in fact I spent $2000 one year ago to have this issue. I really appreciate your help. Ana LuciaAB, Canada.

Hi aluva,
Welcome to the Sony Community!
If a Red LED is blinking and the TV is not working properly it means that the TV has detected an issue or problem. Most Red LED blink conditions require service. The meaning of the blink codes differs between TV models,
Please perform reset, visit the website below for the steps and further details.
https://ca.en.kb.sony.com/app/answers/detail/a_id/38403/c/65,67/kw/Perform%20power%20reset/session/L3RpbWUvMTQzODYzMjA0Ny9zaWQvQ1pPczkqc20%3D
Check out the website below for additional troubleshooting steps regarding lights are blinking on the TV.
https://ca.en.kb.sony.com/app/answers/detail/a_id/32192/c/65,67/?icid=home|banner3_ca_en|blinking%20light
If these articles do not resolve the issue, the problem is most likely related to an internal component that must be replaced and service will be required. Begin the procedure to send your Sony product into a Sony facility to be repaired.
If my post answers your question, please mark it as "Accept as Solution"

Officejet Pro K5400DN Cyan Ink Cartage LED keep blinking

Hi,
My printer is Officejet Pro K5400DN.
I tried to replace the ink cartage with three brand new original Cyan 88XL ink cartages.
The LED still blinking and my printer still not working.
Who can tell my why?
I have tried to reinstall them several times.
power off and pull power plug out then its still the same.

Hi Mulanan,
Welcome to the HP Forums.
I see that you are having an issue with blinking lights on the printer.
I do have a few steps that we can try in the attempt to troubleshoot this issue.
First off, please make sure that you have the printer power cable connected directly to a wall outlet and not a power bar/strip. Here is a document that uses a LaserJet printer as an example but it is meant for HP products in general. Please click on the following link that explains the Issues when Connected to an Uninterruptible Power Supply/Power Strip/Surge Protector.
I also suggest that we go through the document on Blinking Lights on the HP Officejet Pro K5300 and K5400 Printer Series.
If the troubleshooting does not help resolve your issue, I would then suggest calling HP's Technical Support to see about further options for you. If you are calling within North America, the number is 1-800-474-6836 and for all other regions, click here: click here.
Thanks for your time.
Cheers,
Click the “Kudos Thumbs Up" at the bottom of this post to say “Thanks” for helping!
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
W a t e r b o y 71
I work on behalf of HP

Force Switch Port LED to Blink

Hi Guys,
Does anyone know if there is a method of forcing a non connected switch port LED to blink for a certain number of times regardless if there is anything connected.
The purpose of this is we have remote 3750 switch stacks and quite often have to tell non technical staff to patch to a certain port. It would be much easier if we could say "Connect it to the empty port which just started blinking orange" as the port numbers are difficult for them to see in these locations.
A similar feature is available in the ethtool package for linux which makes it really easy for identifying ports on servers. It would be great if a similar feature is available on Cisco switches.
Thanks,

Hi Kris,
The Nexus 5K, 7K and MDS platforms allow use of interface beacon mode:
switch(config)# interface ethernet 3/1
switch(config-if)# beacon
The beacon mode allows you to identify a physical port by flashing its link-state LED with a green light. At this stage, the feautre is not available platforms. Hope this helps!

IMac won't power up - diagnostic LED 2 blinks / chirps

Power light on the front was blinking a quick blip about every 3 seconds and I could hear a very faint, high-pitched 'tweet'. Screen was black, and it would not wake. No hard drive noise, nothing other than the chirp.
Holding down the power button would not cause a restart, or even a shut down. I unplugged the power cord, let it sit for about two minutes, plugged it back in - nothing. Switched outlets, retried it - nothing.
Took the back cover off, plugged in the power and saw diagnostic LED 1 on, LED 2 blinking in synch with the chirping.
Lots of stuff on LED 2 being on, but nothing for it blinking. Any help is appreciated.

It sounds as if you have a RAM problem. Have you added any lately? Try removing a stick (or two, depending on your iMac model) and switch them around. Make sure they're properly seated as well.
Let us know how you make out,

Phone turns off and led light blinks wont turn back on

I have the 8100 and have had it for about 2 weeks I bought it off line since my old phone broke. This morning I took it off my charger and went to a meeting after the meeting I looked at my phone and the led light was blinking I hit a button and nothing happened. I then tried to turn the phone back on but nothing happened. I removed the battery waited 5 minutes then put it back in and it started to work again. But again the same thing happened. I tried this multiple times but nothing change it still went back after a few minutes. I took the battery out sim card and memory card out for an hour then put them back in and the same thing happened. Has anyone had this happen before and is there anything I can do for it. Again after I turn my phone on it "shuts off" the led light blinks like I have a message but I ca not do anything the only way to get it out of this is to remove the battery and put it back in but it reverts back to this in a few minutes. Any help would be greatly appreciated thanks

Greetings, and welcome to the BlackBerry.com Support Forums.
Leave the device to charge 2-3 hours, and then, still connected to the USB cable, remove the the battery from the device a few seconds and reinsert it. If it boots--leave it to charge to 100% (check Options > Status for the percentage).
If it doesn't boot--try using a wall outlet charger if you are not. If you are connected via USB to the PC, make certain that you have Desktop Manager (or the USB device drivers) installed, which you can download below.
Make certain your USB cable is connected to one of the PC's main rear USB ports. Not a USB hub, nor a monitor USB port, nor a USB port on the front of the PC.
Download Desktop Manager from here:
https://www.blackberry.com/Downloads/entry.do?code=A8BAA56554F96369AB93E4F3BB068C22
Report back?
1. If any post helps you please click the below the post(s) that helped you.
2. Please resolve your thread by marking the post "Solution?" which solved it for you!
3. Install free BlackBerry Protect today for backups of contacts and data.
4. Guide to Unlocking your BlackBerry & Unlock Codes
Join our BBM Channels (Beta)
BlackBerry Support Forums Channel
PIN: C0001B7B4 Display/Scan Bar Code
Knowledge Base Updates
PIN: C0005A9AA Display/Scan Bar Code

Pavilion DV4-1070ee got stuck on a blank screen and numlock and caps lock LED are blinking..

My pavilion dv4-1070 got stuck on a blank screen and numlock and caps lock LED are blinking... it happens when i update the BIOS.. please help... thanks

Hello,
I see that you're having an issue with the notebook giving you a black screen. I also noticed you said only the NumLock and Caps lock is blinking.
Now, the BIOS update could have because this but we won't know until you let me know how many times the LED blinks.
Here is a chart which will tell us what's causing the issue.
Please let me know the outcome.
THX

After pres star, my macbook pro 15inc, making beep sound sevral times, but display remain black, and led light blink, inside fan is runing sounds starup come, but display not working :( any one please help me

I have mac book pro, 15inch server color, 2008 modal, few days before I was watching movie at the same time I was chating on face book, suddenly my mac stuck so I just tried to force shutdown, by pressing shadown key for 7sec, and after I try to turn on, but nothing comes on display it's black ad if it's off, but laptop fan is on the led is on its heat is as if it's working, after I tried to reset then it's started making beep noses for ten times and again same thing nothing comes on display black, but sounds like fan is on and led blink, please help me

Hi Aparana.rahul,
The beeps during the startup of your MacBook Pro indicate that it may need to be serviced. See this article for further information -
OS X Mavericks: If you hear beeps when your computer starts up
http://support.apple.com/kb/PH14206
Note that while the article title says it is for computers running Mac OS X 10.9 Mavericks, the same information applies to other versions.
Thanks for using Apple Support Communities.
Best,
Brett L

Harddisk LED continously blinking

Similar Messages

Maybe you are looking for