ACER M5640 0x0000007b BSOD Error

Date Fixed : 03.28.10

Owner : Fritz

Processor : Intel E2460 Dual Core 2.4 Ghz

Motherboard : ACER M5640

Memory : 1 GB

Hard Disk Drive : WD SATA 160 GB

Technician : Drokz

URL : http://tirabyte.blogspot.com

PROBLEM :

Upon intallation attempt, a BSOD 0x0000007b error appears as ; HDD could not be detected

CLIENT REQUESTS:

Data Backup

Antivirus Installation

INTERVENING FACTORS:

ACER M5640 Motherboard Support CD lost

OBSERVATION :

-Everything seems ok upon turning on the computer. So I proceeded with the O.S. Installation.

-Before trying to install an Operating System, I visited ACER's site to see if there are available

drivers for the motherboard model (M5640) and downloaded it. I found out that the drivers were for either win 7 or win vista only, so I asked Sir Fritz which O.S. am I to install and he agreed to stick to Win Vista but should try to setup XP if it is possible to use the said available drivers..

-So the Win XP installer was inserted in the optical drive and retarted the System Unit, and accessed BIOS environment after POST to re-order the boot sequence. The CD-ROM or DVD ROM should be the first boot priority.

-On the course of the XP Setup specifically on the disk partitioning part, the BSOD appears with the error 0x0000007b. I suspected that the RAM was defective so I checked it for defect but found it running just fine. So I then suspected another thing that caused the BSOD error ... the SATA Driver Controller perhaps.

-So I copied the RAID Driver ( for VISTA ) in a floppy drive and followed the XP installation instruction to press F6 upon loading third party drive controller and so on...

-But then... Win XP still doesn't continue to install.

-So i swithced to installing VISTA instead.

-On some point of the Vista Setup, it seeks for a Drive Controller. So I rushed to see the RAID Driver downloaded earlier and copied it to my stick drive. As I browsed for the RAID controller driver to be used for the installation, I copied the RAID files into a stickdrive and plugged it to the ACER M5640 but upon browsing for the RAID driver, VISTA wont continue to install. I began to get worried of such problem.

-Why can't VISTA find the RAID Driver in a USB Stickdrive where boot from USB was enabled in the BIOS. I then looked at the motherboard and surprised to see a floppy drive header! So I used the diskette copied earlier with the RAID driver on the XP installation attempt. A floppy drive was installed and restarted the VISTA installation.

-And when VISTA tried to search for the RAID driver, the diskette (copied with RAID Driver) was inserted and then browsed for the file associated with the drive controller. And yes indeed! The diskette worked and the VISTA Installation continued. The floppy drive seemed to be the answer for all the confusion.

- After a successful VISTA Installation, the ACER M5640 drivers were loaded but it seemed that the Coprocessor, Ethernet Controller and SM Bus Controller could not be installed. So I googled then found out that it must be installed with an Nvidia Chipset Update Driver. And after downloading and run the Nvidia chipset Update Driver then restarted the system, the Coprocessor, SM Bus Controller, and the Ethernet Controller no longer had a yellow exclamation point in the Device Manager.

-MS Office 2007 was then installed then a Kaspersky Antivirus.

-Backup files were then scanned for virus infection and copied back to the ACER M5640 hard drive.

REPORT:

- ACER M5640 System Model needs a RAID driver to install VISTA using a Floppy Drive to resolve the 0x0000007b BSOD Error.

- ACER M5640 needs an Nvidia Chipset Update Driver to install the Coprocessor, SM Bus Controller, and Ethernet Controller.

NTLDR Missing NEC LL550 / G

Date Fixed : 05.04.10

Owner: Ms. Jamora

Unit: NEC LL550 / G Laptop

Operating System : Win XP SP 3

Technician: Drokz

URL : http://computer-help-tips.blogspot.com

PROBLEM :

Upon Boot Up, NTLDR Missing Error appears

CLIENT REQUEST :

File Backup and if possible just to fix the NTLDR problem and retain the settings.

INTERVENING FACTORS:

Support CD is lost

Upon checking the drivers on an NEC site, the site redirects to 121ware.com and it is a Japanese site. Since I can't find the drivers for the NEC LL550 / G Laptop at 121ware.com

OBSERVATION:

Upon turning on the system, it just displays "NTLDR Missing".

Going to Safe Mode ( Pressing f8 on startup ) on startup doesn't help either. "NTLDR Missing" Error still appears.

TROUBLESHOOTING PROCEDURE :

- Fixing NTLDR Missing error can simply be corrected using some 3rd party programs. But in some cases, it might not work. I have known 2 programs that can fix this problem, one if Spotmau and the other is ERD Commander. So I first used Spotmau to try do the trick.

- I loaded in the Spotmau boot cd and waited until the Spotmau environment appeared. And on the Spotmau console, the was an option to fix the system. I opt to roll back the good state of the Operating System but it failed. So I decided to use ERD Commander.

- Upon booting up using the ERD Commander, I tried an option to fix the system. And after awhile upon finishing the fix, the system was booted up on Hard Drive ( cd was removed ) and still the NTLDR Missing Error Still persists. So I finally decided to replace the NTLDR Files using the Win XP Installer.

- To fix the NTLDR files, the files should be replaced. In order to replace or fix the NTLDR files, we need to load in our Win XP SP2 and boot it up ( restart the system )

- You should see after awhile some options to what you should be doing in the set up. Now, I chose "Repair". A minute after, you should be prompted to choose the OS and to supply the administrator password for that installed Operating System. Then, the command line now appears. In the command line, type in "copy e:\i386\ntldr c:" then afterwards copy another file and type in "copy e:\i386\ntdetect.com c:" ( please do not include the quotation and e: should be replaced by the drive letter of your cd rom drive or dvd rom drive ). Please remember that wherever you installed your Operating system ( aside from the default partition which is c: ), copy the ntdetect.com and ntldr files to drive c:. :-) I tried copying the files to drive d: where I installed the Operating System and it DIDN't WORKED.

- After copying ntdetect.com and ntldr from the I386 folder of the XP Installer and booted up the system, everything went running well and the NTLDR Missing problem now resolved.

SUMMARY:

- Using Spotmau or ERD Commander does not always guarantee to fix NTLDR Missing problems. Sometimes, we need to manually do it by copying the ntdetect.com and NTLDR files from the I386 folder of the Win Xp Installer. This can only be achieved in the "Repair" mode of the Win XP Setup environment using command the command line.

- Somehow using Spotmau or ERD Commander makes your job quicker and there are a lot more options to do only Spotmau and ERD Commander can do like System Rollback, File Backup, Driver Backup, and many many other useful tools to play with. :-) You can also try and purchase this guidebook through Amazon to do disk defragmentation, file and system recovery, administrative tasks, and using third party programs effectively.

Computer Restart After a Few Minutes of Operation

Computer troubleshooting is sometimes confusing and costs you a lot of time. But with the help of this computer troubleshooting guide; you will be able to learn basic computer repair, troubleshoot computer hardware problems and many other basic computer repair tutorial provided with this blog.

In this troubleshooting example, an ASUS P5PE-VM has having problems with constant restart some few minutes after being turned on. Basing on the past computer troubleshooting experience, this is attributed to the overheating of the CPU or the Video Card. But there was no video card and as I have checked on the BIOS hardware monitor, the system voltage, motherboard temperature, and CPU temperature, everything seems just fine. And to add more problem, the hard drive has farmed with a lot of computer virus through mp3 downloads via torrent. But one thing I have noticed is that if I just leave the machine running without opening any application, the computer doesn't restart. And if I try to open a memory and cpu intensive application like a game or movie maker, the system shuts down. That leaves me to suspect the RAM or CPU to be failing.



Date Fixed : November 11, 2003


Problem : Computer restarts after a few minutes of operation


Owner : Ms. Luna (PESO Office, Dumageuete)
Motherboard : ASUS P5PE-VM
Operating System : Win Xp Sp2


Technician : drokz
Weblog : http://computer-help-tips.blogspot.com


INTERVENING FACTORS :

- No motherboard support cd
- HDD is infested with many variants of virus


OBSERVATIONS :

- Boots normally and everything seems fine
- Computer restarts if a RAM or CPU intensive application is being run


TROUBLESHOOTING PROCEDURE :

- Before doing anything, safety must be a primary concern. Be sure to turn off the AVR and unplug the power cord from the system unit before opening or handling it. Be sure not to wear any metallic objects on your body. Drain off ESD by touching the unpainted part of your system unit chassis for a minute before opening the side cover of your computer.

- Based on our previous observation, we know that the computer boots fine but only restarts when we try to open an application that is RAM or CPU intensive. This signifies that either the two peripherals when pushed too hard will cause the whole system to function. And with this type of error, video card or CPU is likely overheating. But again, there was no video card so it is least to be suspected.

- Since I have suspected the CPU to be overheating, we need to check first if the CPU heatsink fan is spinning normally. So open the side cover and flip the open side up, turn on the system unit and try to see and feel if the CPU fan speed is normal. But as I have checked, it seemed just normal so I need to check it in the BIOS to verify that there is a less possibility of an overheating CPU.

- Restarted the computer and pressed "del" (some are to press F2 to access BIOS settings), chose hardware monitor to check for voltage abnormality or motherboard and CPU overheating. But I found the voltage normal and the temperature on both the motherboard and CPU is even below normal. CPU overheating is not the most possible cause of the problem.

- I could not directly point that the RAM is failing because it has handled and passed initial memory test at POST. The operating must be corrupted due to virus infection and it is not out of the possibility. So I tried to backup the files but I always get an error message. This must be due to the effects of the virus infection.

- To copy the files needed, Mini Xp was used to boot up the computer and run unstoppable copier and finally got the files needed for backup. After the successful backup, we are now ready to re-install the operating system.

- As the boot sequence was configured in the BIOS and restarted the computer, Xp installation began. But a few minutes on the process of installation, there was a Blue Screen of Death or a Memory Dump Error. Bang! That's it, it could either be a Hard Disk or a RAM error. Since checking the RAM is easier as to check the Hard Disk, we can easily do so by replacing the peripheral with a known good one.

- The computer was turned off then had the RAM removed, replaced it with a known good RAM then retried installing Win Xp. Not with a big surprise, the installation continued. The RAM must be the one causing the problem. To verify this, all necessary software must be installed and test run every applications.

- Appropriate device drivers using a driver pack, Win Office 2007, VLC, Google Chrome, and other essential programs and utilities where installed. Had some games and RAM or CPU intensive applications opened but the computer just ran fine. The RAM has caused the problem. I reported to the system unit's owner that the RAM is defective and a few days later, she bought and had the RAM installed. Also, the backup files were virus scanned and copied back to her drive.


SUMMARY :

- Troubleshooting intermittent problems are one of the hardest computer problem to troubleshoot. As for our troubleshooting tutorial via example was, a sudden restart is not entirely caused by a video card or CPU failing or overheating. As for this experience, the RAM has caused the problem.

This computer troubleshooting tutorial has been tailored to let readers imagine and think how the actual computer troubleshooting really works. If you think there is a better way for you to learn, then let us know. :-)

Virus Infected | Corrupted O.S.

Computer Owner: DILG
Unit: Full Tower ATX
Computer Description: Intel ® D850MV Chipset
Processor: Intel ® Pentium 4
RAM: 128 Mb (SDRAM)
Operating System: Windows SP 2


Technicians:

Mr. Ronald Suan 09269514596
Mr. Wilson Balbuena 09265150058



Observation:

>”Re-install a copy of the above file (Window root) system32\hall.dll” error report occurs upon bootstrapping.


Troubleshooting Proper:

>Re-installing Operating System (Windows Xp SP 2) without formatting the drives.

>Backup important files (word, excel, power point and other important documents, pictures, video, and others) and save it in a pen drive or other removable external media.

>Re-installing of OS (Windows XP SP 2) and formatting the drives as well as creating of disk partitions {C: and D: where the OS was installed in drive D}

>Applying disk defragmentation for both drives.

>Adding virtual memory and setting up a restoration point.

>Installing of system drivers (audio, video and LAN drivers, printer, Ethernet controllers, etc..)

>Installing of application programs and windows utilities (Windows Office 2003 and 2007, winamp, k-lite codec pack, gom player, adobe reader and others).

>Scanning the flashdrive that contains the backup files in other computer with updated and strong virus removal.

>Copying the backup files back to the freshly installed OS computer.



Trouble(s) Found / Computer Defect:

>OS Corrupted

>Infected with computer viruses namely; Trojan and Worm Agents {found during scanning of the flashdrive for virus removal}


Remedy:

>Re-installation of OS (Windows XP SP 2) and formatting the drives.

Summary:

>The computer was infected with viruses, namely Trojan and Worm Agents which causes the corruption of the Operating System. This is the main reason why the computer cannot boot up properly. In order to solve this problem, re-installation of the operating system without formatting was done in order to have a fresh copy of the operating system file and the virus to temporarily be inactive so we can backup. After the backup process, we re-installed the OS with formatting and now, the computer is functioning well and ready for operation.


Keywords : Virus Infected Corrupted O.S. (Operating System)