Macbook boot problem

When I boot my macbook it hangs on the grey screen - i tried rebooting through the internet and all i get is (after putting wifi detail in) 'apple.com/support -5010f, help?

armychief wrote:
I need some help. I ran Oynx to cleanup my 1 year old aluminum MacBook. After it updated the permissions and restarted, my computer won't reboot. I get the circle with the slash. I scanned the forums and tried:
- booting with snow leopard DVD and running disk utilities (verify, permissions, repair, etc)
- resetting PRAM
- last resort was reinstalling SL
Reinstalling seemed to work because I rebooted right away, no problems. Well, it has been a week and I finally shut off my computer and turned it on today and got the same boot problem (slashed circle).
If you hold down an "option" key while your Mac is booting, is the internal drive offered as a possible boot volume? If so, then pick it, let the Mac boot, then use the Startup Disk panel of System Preferences to redeclare the boot volume.
Are you sure the version of Onyx you're running is compatible with the OS version you're running?

Similar Messages

Weird Macbook Boot Problem

So the other day i was on my computer when it froze suddenly. I tried to turn it back on but it only gets to the apple sign with the progress rotor thing. I freaked out, because last time this happened my hard drive was physically broken and I had to get it replaced. I have a lot of stuff on there that isn't backed up because my external HD and ipod are also both broken (bad luck). I booted from my OSX install disc and ran disk utility on the mac HD. I ran repair and it said "this drive appears to be OK" and then I ran verify and it said the same thing. So then I went to startup disk and chose to restart in Mac OSX and it's still stuck at the apple screen, ***? My HD is partitioned between Mac and Windows but both of them showed up fine when I booted from the install disc. It seems like all of my data is still there and my hard drive is fine, but for some reason I can't access it anymore. Can anybody give me some advice, because the "genius" at the apple store just booted disk utility and did the same thing i did (wow, thanks man) and then tried to sell me DiskWarrior and Data Rescue II for $100 each. What should I do?

It sounds like it could just be a system software issue. Do you have any way to access the content of the disk w/o booting from it? Lyssa's suggestion may not be bad... I just might be concerned that if the disk is corrupted, that doing that could corrupt the data that you may still have on the drive.

My macbook boots up get a screen picture then screen goes blank, when boots up I get the sound then a screen then screen goes black is this a battery problem or something else?

my macbook boots up, I get a screen picture then screen goes blank...I get the start up sound, then a picture, then the screen goes blank but computer is still on..does anyone know what the problem is...do I need a new battery or am i just screwed.

Hello nosaint1961,
It sounds like you are unable to successfully boot your computer to your desktop. I would use the troubleshooting from the following article to help troubleshoot what is happening named:
Troubleshooting: My computer won't turn on
http://support.apple.com/kb/ts1367
If your computer won't turn on, try each of these steps:
Verify you have a good connection from your Mac to the wall outlet by confirming the power cord and adapter if present are securely connected and plugged in. To check if the wall outlet is working, plug in a lamp or other electrical device.
If the wall outlet is working and you continue to have no power try another power cord or adapter if available. If it works you may need a replacement cord or adapter.
Note: See Apple Portables: Troubleshooting MagSafe adapters for further troubleshooting with MagSafe adapters.
Disconnect all accessories that are plugged in to the computer, such as a printer, hub, or other mobile device.
If your Mac supports user-installable memory, solid state drive, or hard drive, and you recently installed any of these, make sure they are installed correctly and are compatible with your computer. If possible, reinstall the original memory or drive into the computer to find out if the behavior persists afterwards.
MacBook Pro: How to remove or install memory
MacBook: How to remove or install memory
Mac Pro: How to remove or install memory
Mac mini: How to remove or install memory
iMac (27-inch, Late 2012): Installing or replacing memory
iMac: How to remove or install memory
Reset the SMC.
If you are still unable to start up your computer after trying each of these steps, visit an Apple Store or Apple Authorized Service Provider (AASP) for further diagnosis. If you plan to visit an Apple Retail Store, make a reservation at the Genius Bar using http://www.apple.com/retail/geniusbar/ (available in some countries only).Note: Diagnostic fees may apply for issues not covered under warranty or the AppleCare Protection Plan (APP).
Thank you for using Apple Support Communities.
All the very best,
Sterling

My MacBook Pro has booting Problems, Light keeps on Blinking. What to do?

My MACBOOK PRO (Early 2011) is having booting problems. It doesnt want to be shut off. If I do shut it off it would take an hour for it to boot. The light keeps on blinking when i push the on button. After a few times of pushing the button and the blinking light the light keeps steady and the MACBOOK PRO seems to be turning on . A Whirring noise/ sound can be heard. I then turn it off and push the ON Button again and the MACBOOK PRO finally boots. The problem repeats again when i turn the unit off.
I already had it checked by APPLE but they said they cannot find anything wrong with it!! Any help will be highly appreciated.

Shut the machine down by holding the power button until the computer is off.
Release the power button.
Reset the parameter RAM by powering up the machine then holding the key combination:
<COMMAND> + <OPTION> + p + r until you hear the restart chime three times
Then perform a SMC Reset by following this procedure from Apple:
http://support.apple.com/kb/HT3964
Lastly,
If you are running 10.5.4 as shown in your details... Boot to the System install disk
and select the language then select the menu item "Utilities > Disk Utilities"
repair permissions and repair the disk using the repair tool

MacBook boots up twice after installing Mac os x 10.5.3-is this a problem ?

After installing os x 10.5.3, my MacBook booted up twice, as well, thinking that something might be wrong with the hard disk, it showed that I had only 87 gb of ram, down from 90 gb two day's ago. Can anyone help?

F.N.H.,
The additional restart is normal. This is a necessary part of the updates installer script. Most updates do not require the double-restart, but a few of the major one's do.
You do not have either 87 GBs or 90 GBs of "RAM." You may have that much hard disk space, but RAM is directly accessed memory that is used to temporarily store instructions for running applications and "live" data for same. You probably have 2 GBs of this. At any rate, it is probably normal to have lost 2 or 3 GBs of hard disk space over the last day or so, especially having run the update.
Scott

1st series iMac G5: Booting problems, kernel panics, waking from sleep...

Specifications of the iMac described: 1.8 Ghz, 1GB, 80GB, 64 Mb Nvidia VRAM, Airport, 10.5.5
Back in August 2004 my dad bought us kids an iMac G5 for ‘family use’. It had a fresh install of 10.3.5 on it and compared to the (1999) iMac G3 it replaced it was amazingly fast.
The iMac never showed any signs of probable issues, until we decided to upgrade to Leopard in January 2008. Initially, this upgrade was only meant to be able to sync with the latest iPod nano (who demanded a newer version of iTunes).
After the installation the first thing I noticed was a high CPU usage, the machine seemed slower than ever and that with 1 Gb of RAM (the minimum sys. req. for Leopard are 512 Mb of RAM). Anyway, then the real thing started, it wouldn’t turn on anymore. We brought it to an Authorized Apple Reseller, the Tech department said the Logic board had failed. The costs of the fix weren’t the worth the computer anymore, so...end of story. The iMac was indeed one of the bad series, although it hadn’t any swollen capacitors.
My dad already made up his mind and bought himself a Macbook. He then told me that if I was able to get the broken iMac fixed, I could keep it. And so, I bought an ‘as-is’ logic board on Ebay. Last weekend I installed it, and it actually seemed to work! Yet, the problems are during the startup: the first thing I see is a screen full with horizontal lines flickering all the time, like an old TV with bad signal. Mostly it won’t boot and I get the message to restart the computer (kernel panic, I got dozens of logs already!). Sometimes it got stuck during booting (grey apple screen with gear in the middle) making the fans go crazy (after a while) and sounding what others describe as a ‘jetliner taking off’ sound. Sometimes the screen remains black. Generally it takes me 5 to 10 minutes to start up properly. Maybe it’s just me but it seems like when the computer has warmed up a little (by turning on and off on and on) starting up gets smoother. I mean the startup screen suffers from less horizontal flickering lines.
During the use of Leopard, I again get high CPU usage, especially when I use multiple programs at the same time, or when starting multiple programs. My iStat Pro said once that the fans were running at 4700 rpm and the heat of the CPU was about 70 Celsius. If I really want to **** my iMac off I should play a racing game. That just totally freaks him out! These problems could probably be solved by adding more RAM. Right?
The iMac also has a sleep problem. Sometimes after lets say an hour or so, you can’t get it out of sleep mode (by manipulating keyboard and/or mouse, the sleep light stops, but the screen stays off --> only solution is to restart). What happened to me once was that it slept so long that it just got into a deep sleep by turning itself off completely!
Here’s a list of what I tried so far:
- Disk Utility: Resetting the permissions, no problems were found.
- Resetting the SMU, both on the logic board itself as by pressing the power button 5 - 8 seconds, no improvements.
- Resetting the PRAM, no improvements.
- Did the Hardware test of the original install CD, nothing was found, all good.
- Did Archive and Instal, this actually messed my system entirely, cause it wouldn't boot at all and when starting up from the Leopard installation DVD it wouldn't recognize the Macintosh HD.
- Did Archive and Instal with the original disks, this disk did recognize Macintosh HD and so I installed the original system, 10.3. Booting problems and those flickering lines are still there though.
Next phase will be erase and install, but first I want to know what you guys think about all this.
Oh eh, One more thing; The guys at Applecare (phone support) told me that the replaced logic board was also out of warranty and so they couldn’t help me. But as the man on the phone was kind, he told me to go look for a special ‘driver’ on the net. He said that the driver should be able to resolve some of the issues described. He said that I had to give in the name of the LB on google and look for results. Is this bogus? Because I haven’t found anything useful on google so far. What’s the name (rather than a number) of the LB in the first place?
I hope you guys can give me some answers. I'm kinda desperate. But I still feel there's hope...

The symptoms of a flakey power supply are sleep problems and you have done all the right things as far as resetting the SMU and PRAM. Your CPU usage can be tracked by going to Utilities>Activity Monitor - look and see what is hogging the memory. The flickering lines could also be an optical system going south.
The other thing you can do is run DiskWarrior or TechToolPro to see if you have corrupted directories. Preferential Treatment will let you check for corrupted preferences.

Macbook Battery Problem

Hi all, this is my first post, but something weird happened to my macbook that I have to share with you.
Ok, my Macbook Core Duo 2.0GHz (1st generation) have had no problem during its first and half year. Then I left the notebook sitting at home for one month as I was away on business. Came back, the machine won't start, used AC adaptor and showed the battery not charging, "x" and everything. My warranty expired, so I bought a new battery. Once I got that, it worked fine for almost 7 months.
Another business trip left my macbook for 1 month, I came back, the battery is dead again!!! So I went to apple support and bought another new battery. This time I installed it at home, and it doesn't charge what-so-ever. I tried everything from SMU reset, PMU reset, P-RAM reset. NOTHING WORKED.
So I took a friend's macbook battery to try, and it worked! I can charge that battery with my macbook, and my battery won't charge on his macbook. So scientifically I thought its the battery defect. I went to Apple Care and they say they will replace it for me, but think that it should be my macbook's problem. Must be the Logic Board, I explained why I disagree, and that the battery came with only one LED blinking when I got home to charge, the current was already too low to charge.
Anyways, I was able to buy a second-hand battery really cheap but with limited life-span and use it until my replacement battery returns. Everything seem fine and I can charge it up to 100% although it will only last me 50-mins, still not bad, right?
I was reluctant to completely drain this battery now since I am afraid it will drop to zero and won't recharge like the other ones.
I am using Boot Camp, and Vista as well as OS X. Suddenly today, two days after I bought the 2nd hand battery, I was using Vista to show my friend the battery problem is fixed. But suddenly out of nowhere the battery dropped from 95% charged to 0% in seconds. It shuts down automatically, and the battery was flashing one LED indicating it's dying.
I started back in Mac OS X and found the charger able to recharge, but it fixed at 0% for 20 minutes. I thought I am screwed and went out for a smoke. I came back to see the battery charging back to 5% and then slowly to 10%, and 20%, suddenly it went back to 85% in seconds, and then 100%. I try to unplug it and it seemed fine. I left it on without the adapter for 20 minutes, the battery drain normally, to 70% (it's fine considering the battery was 2nd hand) My friend thought I should try to switch back to Vista to see if the same thing will occur. So I did, and before the Vista screen came up, the macbook blacked out. I checked the battery indicator and it's flashing one LED again!!!
So I switched back to Mac side and re-do the charging, this time it took longer to get back to +90%, I thought this is normal, 'cause I did use the battery longer on the Mac side before switching to Vista for the test.
I thought to myself, why Vista drained my battery, and then I remember the first battery that died on me was about the time I switched the PC side to Vista. Prior to that, the PC side was using XP. The second time it died it was in Vista as well. I also remember I wanted to reduce the size of my PC partition, so I trimmed off unnecessary features like hibernation by (Powercfg -h off). It saved 2G in size but it may be causing some problem to the charging circuit for the Mac-hardware??? Don't know for sure.
So I erased my Vista partition, and re-installed XP. Since then I tried both sides without adaptor, usually for 10-minutes or less, and no sudden dropped to 0% occurred since.
Everything else is working fine with my macbook, except the power features. Right now at least I can charge the battery, but I am always worried about when or IF the battery will dropped off and kill itself.
I am waiting for the replacement battery to return from APPLE, and hopefully when it returns, my Macbook will be able to recognize the DEFAULT low-charge of a new battery. I'm still not sure if my macbook is defective, and if it did killed the first battery replacement they gave me a few days ago. If it did kill a decent battery, will it kill this new replacement as well??
I know for a fact that the reason why the machine won't charge the battery is because the current of the battery has become too low for the machine to be able to charge it. If the current becomes lower, the "X" will occur suggesting that the machine doesn't even recognize it's a battery. But what I want to know is what caused the battery to drop to such a low current if I turned off the macbook during storage.
Sorry for the length of this post, but I have to be clear on all the details if I want help, I suppose. Right now my question is (1) Why is this occuring?? (2) Am I right in assuming that by removing Vista with XP, the problem will not repeat?? (3) Is it likely for any new or 2nd hand functioning battery to drop to the state of the other battery any time soon?? (4) Am I doing proper care for my Macbook, and what should I do in the future to avoid the same problem from occuring??

gpotts,
Thanks again, here's my battery profile: (keep in mind this is the 2nd hand battery I am profiling) BTW, something happened when I was doing this message, I left the notebook on for about 20 minutes, it dropped from +90% to 48%, macbook prompted me that the battery is running low. I plugged the adaptor and it went back to +95% within minutes...
Good thing is, I haven't seen the sudden drop to 0% ever since I removed Vista, and also I am able to charge my battery everytime I try now, no more "NOT CHARGING" or "X" indication.
Any clues??? Thanks in advance.
Battery Information:
Model Information:
Serial Number: DP-ASMB013-34cf-** <Edited by Moderator>
Manufacturer: DP
Device name: ASMB013
Pack Lot Code: 0001
PCB Lot Code: 0000
Firmware Version: 0102
Hardware Revision: 0300
Cell Revision: 0100
Charge Information:
Charge remaining (mAh): 1533
Fully charged: No
Charging: Yes
Full charge capacity (mAh): 1597
Health Information:
Cycle count: 349
Condition: Good
Battery Installed: Yes
Amperage (mA): 466
Voltage (mV): 12597
System Power Settings:
AC Power:
System Sleep Timer (Minutes): 60
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 60
Automatic Restart On Power Loss: No
Wake On AC Change: No
Wake On Clamshell Open: Yes
Wake On LAN: Yes
Display Sleep Uses Dim: Yes
Battery Power:
System Sleep Timer (Minutes): 10
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 2
Wake On AC Change: No
Wake On Clamshell Open: Yes
Display Sleep Uses Dim: Yes
Reduce Brightness: Yes
Hardware Configuration:
UPS Installed: No
AC Charger Information:
Connected: Yes
Charging: Yes

Macbookpro a1297 boot problem

I bought an old macbook pro 17 inch a1297 and later found that it did not have hard drive. So I installed a new blank hdd n installed mountain lion. Laptop works fine but with a boot problem. I always have to disconnect the battery connector from the board and reconnect to get it worked. If I do not do this, laptop keeps giving start up tone.
Even when laptop goes to sleep mode, it does not come up. Please help. I will be very grateful.

Hold the option key when powering up. You should then be able to select Windows to boot.
You should also visit the Boot Camp forum here. http://discussions.apple.com/category.jspa?categoryID=237

Macbook boot time too long

Hello, boot time on my MacBook seems to be very long. Can you please take a look at my bootchart and tell me what do you think?
And also the gnome login is very slow. More precisely, it takes too much time for the desktop to appear after logging in.
Here is the bootchart:
http://i49.tinypic.com/5yrk11.png
Last edited by exapplegeek (2012-07-08 22:00:21)

exapplegeek, your thread title is far too general. Please rephrase it such like: "Macbook boot time problem" as soon as possible.
And leave the "[BOOTCHART]" part out.

Lost boot problem os x lion 10.7.5

i suddenly lost my OS X lion 10.7.5 on my hard drive, my macbook cannot boot again but my data is still on my hard drive question : please can someone give me a clue how do i fixed my boot problem.. thx^^

Try starting up your Mac while holding down the Command + R keys so you can access the built in utilities in OS X Recovery to repair the startup disk if necessary or restore OS X.
You can restore from a backup using Time Machine in OS X Recovery.

Booting problem - first question mark folder and now grey screen

Hi all,
I'm having problems with my Macbook booting.
Yesterday it worked fine until I tried to open an old Excel file, then all became extremely slow, but anyway I was able to shut it down properly, or at least this was what I thought.
The next time I tried to turn it on, a flashing question mark forder appeared instead of the apple. Then I tried various solutions I've found in forums, like turning on while holding down shift button like in http://support.apple.com/kb/HT1455 (nothing happens), the option botton (the cursor appears, but bootcamp does not start), and command+V for verbose mode (nothing).
Anyway now if I turn it on nothing appears, neither the question mark folder, just the grey screen.
I know that everything suggests that my HD is dead, but I don't really see the reason why it should have done so...
Thank you for your help.
Giulia

Hello,
"*a flashing question mark forder appeared instead of the apple."*
A flashing question mark can mean several things. One, the hard disk disk is failing. Two, it means that when you boot your MacBook, it can't find a System Folder to boot from.
Try booting while holding down the Option key. That should prompt the Startup Manager window so you can select your startup disc.
If that doesn't work... grab your install disk and check the hard drive for errors.
Insert the installer disk and Restart, holding down the "C" key until grey Apple appears.
Go to Installer menu (Panther and earlier) or Utilities menu (Tiger and later) and launch Disk Utility.
Select your HDD (manufacturer ID) in the left panel.
Select First Aid in the Main panel.
(Check S.M.A.R.T Status of HDD at the bottom of right panel. It should say: Verified)
Click Repair Disk on the bottom right.
If DU reports disk does not need repairs quit DU and restart.
If DU reports errors Repair again and again until DU reports disk is repaired.
When you are finished with DU, from the Menu Bar, select Utilities/Startup Manager.
Select your start up disk and click Restart
The fact that you can't boot in Safe Mode (shift key) is not a good sign...
*"but I don't really see the reason why it should have done so..."*
How long have you had your MacBook? Do you have AppleCare?
Carolyn

Boot Problems - Advice?

Ok, MacBook Pro having boot problems, any advice?
What happens:
I boot -- desktop background comes in. Cursor comes in. After a while, the icon for Spotlight and the right corner (right of the time) of the top bar come in. Nothing happens after that.
If I move my cursor over the fragment of the top bar, I get the rainbow spinner thing.
If I press eject, brightness or volume buttons, I get the translucent black square with the appropriate icon.
I can boot with Bootcamp and run Windows fine, but if I wanted to do that regularly, I wouldn't have purchased a Mac (ok, maybe I would have, but that isn't really the point.)
Anyway, I'm looking for advice -- most of the troubleshooting items that I've found in Apple's support seem to be focused on hardware problems (which this doesn't seem to be), and most of what I've seen on other sites is badly out dated.
Anybody have a fix? Thanks.

Did it ever boot normally?
Until today, it had never boot abnormally.
Did you install any new software or memory just
before this started happening?
I installed some fonts last night... no new software immediately preceding this, however. Norton anti-virus, Microsoft Office, and a nightly WebKit build last week, but I've used it without problems since then.
Have you launched Disk Utility from your install disk
(located in the file menu) and Repaired Disk and
Repaired Permissions?
Not yet -- I was still in the denial / hopefull thinking phase of repair. Will do that and post back here either way. Thanks.

K7N2 Delta-L: Strange cold boot problem & solution

My K7N2 Delta-L has a problem cold booting when the vcore is set in the bios at 1.65v of higher. After a cold boot, you get a blank black screen. I noticed that even if you run at default speeds but set the vcore to 1.65v of higher the problem still occurs. There is no problem rebooting however.
I found the following solutions:
1. After you power up and get a blank, hit the reset button.
2. Don't unplug your PC. My PC is connected to a AVR and after I power down the PC I usually turn the AVR off. If i do this, than the computer will have a booting problem if I try to boot it up 30 minutes later or so. Now if I don't unplug it/power off the AVR than everything is fine.
I don't understand why it acts the way it does though.
Does anyone know of any other solutions?

Have you cleared the cmos. If you do be sure you have the power turned off don't move the cmos jumper with the power on.
I found that turning off power at power supply and unpluging, than turning on the computer the fans will spin just a little this drains all the power. Clear cmos 2-3 than return to
1-2 position.
Than plug the power back in and turn it back on, than try the computer again.

Mid 2006 iMac Boot Problem (Since latest firmware update)

I have a Mid 2006 17" iMac. Ever since the latest firmware update in early December, about every other startup I've been having boot problems. After the white screen with the Apple Logo and the spinning wheel it goes to a blue screen like normal, but instead of the 'Loading Mac OS X' white window popping up it stays blue and the spinning loading wheel starts. I've left it loading for quite a while before and nothing changes. I have to do a force shut off by holding the power button. and then I start it up and it will boot normally.
Any help would be appreciated.
Thanks!

Actually, I think it'san early 2006.

MSI P45 Neo-f with intermittent boot problems

Current system:
*CPU: Intel core2duo 4300 1,80GHz
Mobo: MSI P45 Neo-F LGA775
*Memory: 1 Kingston 1GB PC2-5300 667MHz DDR2 and 1 Dane-Elec 1GB PC2-5300 667MHz DDR2
Videocard: Club3D Nvidia 8800GT 512MB GDDR3
*Hard drive: 120GB IBM deskstar 7200rpm Ultra-ATA/100 (yes I realize it is known as the deathstar, but it hasn't failed so far, I do back-up because I'm paranoid
PSU: Real Silent Nexus NX-5000 500 watt
*Soundcard: Soundblaster Audigy
OS: Windows XP home, service pack 2
*Lite-on IT dvd-rom drive
*floppy disk drive
I also have 3 case fans spinning away in a marginally large Chieftec Dragon tower.
The parts I marked with an asterisk (*) are parts that I removed from my old rig and re-used.
I'll try to give a clear rundown of my problem and the steps I've taken so far.
3 days ago I acquired the P45 Neo and installed it into my system, together with the 8800GT videocard. I was still using my old PSU, a Chieftec 360watt. This PSU served me well for 7 years, but it was starting to build up noise while trying to keep up games on my old rig.
I had some trouble getting the system to boot, I tried changing some of the 4 pins wires going to the hard drive and the dvd drive. I don't know if it was luck or if I managed to divide the load properly for the system to boot. But I succeeded into booting up, got into the bios and eventually installed WinXP.
As soon as it was time to install the videocard drivers, it stopped responding. I assumed it was a power issue, since I could only install the 20pin and 4pin cpu, but my Chieftec PSU didn't have a 24pin plug to the mobo - and it needed replacing anyway! So I bought a new 500watt PSU that had all the required plugs and more wattage.
I installed the new PSU, checked every connection and pressed the power button. 'Lo and behold, the computer starts up. I install the videocard drivers and it proceeds with no problems. I try to install the soundcard, but the cd says I don't have one installed. I fix that by going to the System list and install the drivers from there. I install a firewall. By then I have successfully rebooted the computer 3 or 4 times. I decide all is well and turn off the computer. But I realize I wanted to check up something on the internet.
I press the powerbutton. The PC power light go up for just a fraction of a second. I can see the blue LED of one of the case fans switching on just as briefly - then it goes out. The computer keeps trying to turn itself on. It looks like it's hickupping to try and boot!
I turn off the PSU power on the back-side because the computer keeps trying and wait for a bit. After 10 minutes, it still doesn't work. I leave the computer for a bit and return an hour later. The computer then starts up with no problems. I turn it off after a few hours, do a reset, start it up, no problems. But then the next day it happens again.
It's pretty tough figuring out what the problem is because it looks..almost random. I considered it could be a heat issue, but sometimes it *does* start up just after it's been turned down. Checking the bios shows no strange temperature shifts.
Hope anyone can help me, because I do not want to go back to my old Asrock mobo

While powered down I cleared the cmos data, removed the Dane Elec DDR2 module and set the bios to optimized defaults. Computer restarted to WinXP with no problems (it has been off the whole night). I shut down WinXP, wait a few moments and then turn the computer back on. Alas, it won't start and starts hick-upping. I turn power off at the PSU again, so it stops.
Now I try switching out the Kingston module instead. By now the computer has been off for 10 min (while I write this entry on laptop). I press the power button on the PSU and then the power button on the front. There is a short pause, lasting a second. The computer turns on, longer now, but it only lasts 2 whole seconds before it turns off again and goes on again (I believe now you can call it powercycling). It repeats this process until I shut off the PSU.
I check to see if I have installed it properly and try again but it starts powercycling again.
15 min pass, I put the Kingston module back in, press the power button and voila, this time it does start. WinXP shows up, no problems. I leave it on for a bit and then shut down. And when I press the power button again - the feeling of dread returns, when it starts hickupping again.
I'm going to see if I can install one of the memory modules from my housemate. Then hopefully tommorrow, I'm going to try if I can test a different PSU, since I see someone else on the forum - who recently posted, has the exact same power supply and also has boot problems, coincidence... or not ^^;.

Macbook boot problem

Similar Messages

Maybe you are looking for