P7N SLI - PC suddenly stops or 'blue screens'

I been running Windows 7 for some time using this MB using both PATA & SATA as the boot drive. However, running Adobe Lightroom v4, I noticed that it was running a tad slow using the PATA drive & switched over to the SATA drive which is when things became unstable with the system either just stopping or 'blue screening' - the infamous Windows 'blue screen of death'.
I attempted a clean build of Windows 7 but it 'blue screened' just after the installation process. I've tried 2 other SATA drives with the same result so it can't be a faulty SATA drive.
If I boot from PATA, it runs without any of the problems that affect the SATA boot and I can read/write at will to & from the SATA drives.
Another problem which I think is related, is that when I added another SATA drive to the system, the PC would not boot, there was an almost continuous beep from the bios. I noticed that there was no screen, so I removed the video card, reseated it and re-booted whereupon there was an error message to say the the the MB had been overclocked beyond it's capabilities & MB would be reset with default settings. Strange, 'cause I've never overclocked the system.
To my mind, it looks like the SATA interface is playing up but what I don't understand id why I can still read/write to them.
Any help or advise greatly appreciated as it looks as though I'm going to have to replace this MB at some stage but am not too keen to loose the PATA / SATA support that is missing from newer 775 MBs.

My situation went from bad to worse.
Having run the simplified system for a day without problems, I decided to add in the SATAII DVD-RW drive & SATA III 2T HD (jumpered to limit file transfer to 3G/s) using the supplied power & data cables. Switched on, both drives were immediately recognised but the DVD RW drive drawer would not open - light was on but it would not respond (cable was seated correctly on the back of the drive). Switched off, tried a different cable & it worked fine for a short period of time before the system immediately shut down with no warning. Switched back on & it blue screened. Changed over to my trusted PATA boot drive & it also blue screened.
Despair at this point set in & the system was left.
I decided to check each Memory stick in each memory slot using Memtes86 v4.2 with inconsistent results - even Windiag would just freeze, then the system would shut down; checking the processor temp, it was 50degC.
I left the system overnight & repeated the memory test but the system would still shut itself down. Did a recheck on the CPU temp & it was 87degC climbing to 94degC, then 101degc before shutting down. Checked the processor heat sink to see how hot it felt & found that it had become dislodged from the MB - that explained the high temperature. Re-seated the heat sink making sure that it was locked into position. Started a re-test of the DIMS in each slot to find that slot 3 would pass all 4 DIMMS. Repeated tests again were inclusive.
Looking at the MB fixings, there were 2 positions where they hadn't been fitted; presumably because I didn't have enough at the time & they were of a special type that pushed into a square cutout in the chassis. Having built 2 systems recently for friends, I found some spares which I fitted to strengthen the support in the area of the RAM & processor believing that flexing of the MB had been responsible for the cooler becoming dislodged.
I've put all DIMMs back in with 1 SATA II HD & 1 PATA DVD RW and booted the system up which appears quite stable at this point. I ran the Windows Memory Diagnostics program, rebooted the PC, it did a full 2 pass memory test & reported no errors. Not quite the same as running memtest86 but I'm going to leave it like this to see how it performs before adding the other bits back in.
Coming back to the cable problem, it was adding a new drive with a previously unused cable that came with the power supply which started all my problems. I rang these cables out & the only thing that I noticed is that the 0V was swapped over on the 2 SATA power plugs which would mean that the 5V on one would get it's return on the 0V return from 12V and the 12V would get it's return form the 0V on the 5V supply - this needs further investigation before I reconnect things.
I'm not 100% satisfied that I've identified the problem, but the processor cooler clearly was not fitted correctly or it would not have come loose!

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Some general advice on updating:
It is worth noting that it is an extreme rarity for updates to cause upsets to your system, as they have all been extensively beta-tested, but they may well reveal pre-existing ones, particularly those of which you may have been unaware. If you are actually aware of any glitches, make sure they are fixed before proceeding further.
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Turn off sleep mode for both screen and hard disk.
Disconnect all peripherals except your keyboard and mouse.
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2. Verify the state of your hard disk using Disk Utility. If any faults are reported, restart from your install disk (holding down the C key), go to Disk Utility, and repair your startup disk. Restart again to get back to your startup disk.
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The Combo updater of Leopard 10.5.8 can be found here:
http://support.apple.com/downloads/MacOS_X_10_5_8_ComboUpdate
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Full details about the 10.5.8 update here: http://support.apple.com/kb/HT3606
More information on using Software Updater here:
http://support.apple.com/kb/TA24901?viewlocale=en_US
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http://docs.info.apple.com/article.html?artnum=106695
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http://docs.info.apple.com/article.html?artnum=106692
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After re-creating user account setup stops at blue screen

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Okay this is what I see:
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-rw-rw---- 1 root admin 15298 Mar 16 20:22 mdimportserver.crash.log
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Mar 17 19:26:24 localhost kernel[0]: GFX0: family specific matching fails
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Mar 17 19:26:24 localhost kernel[0]: Matching service count = 2
Mar 17 19:26:24 localhost kernel[0]: Matching service count = 2
Mar 17 19:26:24 localhost kernel[0]: Matching service count = 2
Mar 17 19:26:24 localhost kernel[0]: Matching service count = 2
Mar 17 19:26:24 localhost kernel[0]: Matching service count = 2
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Mar 17 19:26:24 localhost kernel[0]: GFX0: family specific matching fails
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Mar 17 19:26:24 localhost kernel[0]: athdescdmasetup: tx dddescpaddr = 0xd2de000, length 0x46500(288000) bytes
Mar 17 19:26:24 localhost kernel[0]: athdescdmasetup: beacon dddescpaddr = 0x32a4000, length 0x90(144) bytes
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I know that I have probably screwed up pretty good on this one because I rushed into finding ways to fix this without really reading into it. I would really like to be able to recover my the files that were on my hard drive but I know that may be impossible at this point. I also do not have the discs because I left them at my college and I am currently at home. Other information that may be useful is when I start up in single user mode I get a few lines that look like this:
Extension "com.apple.driver.AppleUSBTCKeyboard" has no kernel dependency.
Extension "com.apple.driver.AppleUSBTCKeyEcventDriver" has no kernel dependency.
localhost:/ root# CSRHIDTransitionDriver::probe: -s
CSRHIDTransitionDriver::probe booting in single user .. do not match
Again thank you for any help in advance.

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If you put the OS X Installer Disc in the computer's optical drive and boot from it does it boot into the installer as expected?
Booting From An OS X Installer Disc
1. Insert OS X Installer Disc into the optical drive.
2. Restart the computer.
3. Immediately after the chime press and hold down the "C" key.
4. Release the key when the spinning gear below the dark gray Apple logo appears.
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Repairing the Hard Drive and Permissions
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1. Be sure to use Disk Utility first to repair the disk before performing the Archive and Install.
Repairing the Hard Drive and Permissions
Boot from your OS X Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Installer menu (Utilities menu for Tiger.) After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported, then quit DU and return to the installer.
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I have a G5 dual 2.3. Last night it was acting sluggish... really slow. So I decided to restart it. Well, after 5 minutes on the grey screen with the apple logo, it then goes to a blue screen, and stays that way.
I have put in the install CD to attempt to repair the hard drive, but it gets an error when I do that and is unable to repair it. I did repair the permissions.
any other thoughts?
thanks in advance.
Christian

Hi,
my G5s serial number falls within the range given by the Power Mac G5 Repair Extension Program for Power Supply Issues.
Would my symptoms:
http://discussions.apple.com/thread.jspa?threadID=1012950&tstart=0
be that as described by the Power Mac G5 Repair Extension Program for Power Supply Issues?
http://www.apple.com/support/powermac/powersupply/repairextension/
thanks
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Dual G4 MDD - Boot problem - stopped at blue screen

Good day,
I am trying to revive a machine that was reported dead due to video card issue.
Replaced AGP graphics card with PCI - display OK.
Now I am experiencing further difficulty with the computer.
Computer boots to Apple logo and spinning wheel, then proceeds to blue background screen but no pointer and no further boot progression.
Here is the troubleshooting I have done thus far:
Verbose boot - option-V on boot, no hang-ups seen, but scrolls by rather quickly. Proceeds to blue background screen after verbose boot - same result.
Choose boot device - hold down option at boot - computer recognizes HDD boot volume and CD-ROM boot volume. Try booting to 10.3, 10.5 install CDs / DVDs, TechTool CD from AppleCare - same result.
2 HDDs installed; both cable-select. Remove secondary drive, set primary drive to master, then cable-select - same result.
2x 512K RAM installed; booted with only one, switched out DIMMs, switched RAM slots, installed known good 256K DIMM - same result.
Reset PMU via logic board switch - unplugged machine, pressed switch for 1 second, let sit for 2 minutes unplugged, plugged back in - same result.
Reset PRAM via keyboard - command-option-P-R on boot, wait for second chime, release - same result.
Reset PRAM via OpenFirmware - command-option-O-F on bootup, reset-nvram set-defaults reset-all - same result.
Set computer to target disk mode and installed fresh OS X 10.3 on primary HDD - same result
Boot to Apple Hardware Test CD - looped > 48 hours - reports no errors.
As you can tell, I think I have run out of troubleshooting options. My gut tells me it's a bad CPU, but I wanted to post here before running up the eBay / PayPal tree too far.
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I have had this problem twice, with 2 different fixes. It seems as if yours might be a little bit more serious. First question, how long do you let the computer sit there and try to get past the blue screen? When I got a PC --> Mac flashed Nvidia GeForce 7800 GS the "AppleHWSensor.Kext" was causing a blue screen for about 2 minutes before it would load the login screen. Removing that extension fixed it.
Second time I ran into this problem was when my system profiler was reporting "unable to report Firewire Devies" in red text. I still dont know for sure but i think my firewire port(s) have gone bad on my logic board. One or both of them. I fixed this by removing all of the .Kext files that had anything to do with firewire from my extensions folders.
These extension include :
IOFireWireFamily.kext
IOFireWireAVC.kext
IOFireWireIP.kext
IOFireWireSBP2.kext
IOFireWireSerialBusProtocolTransport.kext
In conclusion, I would say that there is some kind of hardware failure thats causing the boot to hang. The hard part is figuring out what. Goodluck!

Stop Error / Blue Screen of Death... Please Help

Hello,
I have been having problems with my desktop computer ever since I Installed the BT Total Broadband software.
I have seen a similar topic regarding the Stop error and BSOD,but the problem there appears to be with a wireless connection with a laptop. I, on the other hand, am using an ethernet cable connection with a desktop, so I am not sure if the fix will also work for me.
The problem I have am having is that my computer frequently either resets or BSOD's, with an IRQ_Less_Or_Equal message. This usually occurs within minutes of any kind of internet navigation, and after it has occured once, the problem seems to persist, causing my computer to freeze during bootup, or crashing/resetting shortly after windows (eventually) loads successfully.
Please help, this is driving me crazy!

Thanx again for the replies guys, this is all very helpful!
Firstly, Im running windows XP, SP3.
Also, I have to admit the inside of my computer is quite dusty and could use a good clean.
Finally, its interesting to note that although my computer has a habit of crashing/resetting/BSODing quite regularly during online activity, sometimes the system seems to stabilise, and will run perfectly well for hours at a time.
However I have reached a point where the continual errors, and the resulting 100x crashes and windows failing to load has driven me to seek professional help (here, not a pyschiatrist )

Stops at blue screen after the logo

after the logo and revolving gear wheel macbook turns into blank screen and nothing after that. Even I startup with os dvd the same thing is happening. At the same time it is working with windows 7 quite normal and very good. Anybody faced this problem and solved?

Satti,
I'm not sure if you realized it but you posted to an iMac forum not a Macbook forum. The correct forum is:
http://discussions.apple.com/category.jspa?categoryID=218
Regards,
Roger

My iphone 4 suddenly stopped working? screen went black and wont turn back on or reboot...?

My iphone 4, 8G white suddenly died after leaving in on the counter... I tried turning it back on by holding the lock button but, nothing happened. i tried hold the home button and lock button but, still nothing happens.. Can you please tell me what else i could possibly do to get my phone back on or getting a phone that works?
Thank you,
Travis

Your phone may be out of battery or may have shut down due to overheating.
Try plugging it into its charger. If an empty battery with a charging symbol appears, you're good. Just let it charge for a few minutes.
If you were using your phone excessively and it is extremely hot, wait until it cools down then turn it on again.

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