Phuket Information Technology Blog

LSI MegaRAID SCSI 320-1 (pcbx520-a2) is a 64-bit PCI SCSI RAID controller. We tested it in the 32-bit PCI slot and it works just fine.

admin Technical 32-bit, 64-bit, lsi, megaraid, pcbx520-a2, pci, scsi

Computer with a problem: HP Pavilion dv5227tx (I believe the solution is applicable to many dv5000 series laptops).

Sound device: Vendor ID 14F1, Device ID 5047

Windows 7 installs the driver but it is unable to start.
Downloaded sp35682 from HP Support site, this is a driver version 3.38.0.50 dated 03/26/2007.
Unpacked it and pointed the Driver Installation Wizard to the unpacked folder.
Driver installed fine but there were no sound from the speakers.
There was sound through the headphones.

I compared the registry settings from the original XP installation with the current ones.

The following key attracted my attention:

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E96C-E325-11CE-BFC1-08002BE10318}\0007\Settings\OEM\DefaultJack]

I changed some keys back to the values they had on XP as follows:

“Wid13″=hex:01,02,01,00
“Wid14″=hex:02,00,01,00
“Wid15″=hex:0a,01,01,00
“Wid17″=hex:0a,01,00,00
“Wid1D”=hex:01,02,00,00

Restarted and bingo! Sound through the speakers!

admin Technical 14f1, 5047, audio, conexant, driver, dv5000, dv5227tx, sound, speakers, windows 7

There is a very common failure on the APC Back-UPS 500 RS (BR500I). The UPS does not turn on and there are dark burn spots on the side and top of the UPS case as shown on the picture. We can fix this condition in about 30 minutes in our office; the price is 800 baht.

BR500I failure

admin Promotion, Technical apc, back-ups 500 RS, br500i, burn, repair, ups

The customer brought an Acer Aspire 7720G which was unable to power up (no lights on) after the BIOS flashing from Windows went wrong. The customer used the original BIOS updater from Acer web site. In this state the notebook appears as completely dead, pressing the power button simply does not work. There is a certain procedure to recover the notebook from this state without disassembling it. Took about 30 minutes including the preparation.

admin Technical 7720G, Acer, aspire, BIOS, flash, power

Another customer who forgot his BIOS setup password on Acer Aspire 5550. After 3 wrong password entry attempts Acer notebooks display “System Disabled” message with the model-specific code. We unlocked the system in 5 minutes

admin Promotion, Technical Acer, BIOS, password, system disabled

• Download driver from VIA website, unpack
• Navigate to Vinyl\drivers\Vista32WDM or Vinyl\drivers\Vista64WDM, open Vinyl97.inf for editing
• Add the following line between the others:
  %*WDM_VIAudio.DeviceDesc%=WDM_VIAudio, PCI\VEN_1106&DEV_3059&SUBSYS_810D1043
• Save, point the driver installation from Device Manager to this folder
• Plug the speakers into the microphone (pink) jack

admin Technical 1106, 3059, 810D1043, ac'97, ASUS, driver, k8v-mx, sound, via, windows 7

Install Toshiba Supervisor Password Utility for Windows 7 (x32/x64)

admin Technical ACPI, TOS1901, Toshiba, unknown device

Had to install Windows 7 x86 on the old PC with SiS650-based motherboard. The 315 IGP is detected by Windows 7 as “Standard VGA Graphics Adapter”. With 800×600 resolution everything was working fine but when I tried to switch to 1280×1024 mode the LCD monitor went dark and showed “not recommended mode” sign. From monitor info menu I found out what graphics adapter had set the refresh rate to 87Hz and monitor wanted 60Hz.

It seems what for “Standard VGA Graphics Adapter” Windows 7 does not allow you to change the refresh rate, showing only “Hardware Default”. The graphics adapter uses the refresh rates from its VESA BIOS. I guessed what the adapter was not reading or using the monitor DDC information. Luckily on Wim’s BIOS page I found the patched BIOS for this motherboard where the Video BIOS was replaced with newer version. Flashing this BIOS solved the refresh rate issue.

admin Technical 315 IGP, 650, BIOS, DDC, refresh rate, SiS, Standard VGA Graphics Adapter, VESA, windows 7

In our latest case in was obviously caused by the nvidia driver interaction with GeForce 310M on Sony VPCCW25FH. To resolve, follow the steps:

1. Immediately after first setup restart (before it is doing “Completing installation”), press F8 to invoke boot menu
2. Select Safe Mode
3. Setup will complain what it cannot continue in the Safe Mode, DO NOT press OK
4. Press Shift-F10
5. In the appearing command prompt type compmgmt.msc <Enter> and wait a while
6. In the management console go to device manager and disable video adapter
7. Close all windows and restart
8. Do not enter boot menu this time, let setup continue as usual

admin Technical completing installation, compmgmt.msc, freeze, geforce, nvidia, setup, shift-F10, solved, windows 7, x64

We have found a working driver for Acer OrbiCam (Bison) webcam driver for Vista / Windows 7 on Lenovo support site. Hardware id of this webcam is USB\VID_0402&PID_5602 (Vendor ID: 0402, Product ID: 5602)

admin Technical 0402, 5602, bison, driver, orbicam, windows 7