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In this particular guide I’m taking apart a Presario F730US notebook. Remove three screws securing the memory cover and two screws securing the hard drive cover. Most likely if you install a 64-bit OS, you can use all 4GB. Disconnect both antenna cables from the wireless card. In the next guide I will explain how to access and remove the LCD screen with inverter board. Remove four screws securing the top cover assembly. Remove two hex studs located close to the memory slots. These cables connect the motherboard to the USB/Power connector board. As you see on the picture below, the audio board and USB/power connector board are secured to the base assembly. Now you can access and replace the cooling fan if you have to.
Before you start, turn off the laptop, unplug the power adapter and remove the battery. Were you able to upgrade your Presario F700 to 4GB? Remove two screws securing the wireless card in the top left and right corners. Remove all marked screws from the bottom of the notebook. Start lifting up the switch cover as it shown on the picture below. By the way, the RTC (CMOS) battery can be accessed when you remove the memory cover. Start separating the top cover assembly from the bottom assembly. In other Compaq/HP models there could be more then one screw securing the motherboard. Lift up the right side of the motherboard as it shown on the picture below. You can access and replace the processor if you remove the heat sink.
If these two values are different, it causes a CMOS Checksum error message.
System board, processor (CPU) and LCD screen are the most expensive parts in any laptop.
Description The Bluetooth enabled controller must comply with the Basic Rate (BR) and Low Energy (LE) Combined Core Configuration Controller Parts and Host/Controller Interface (HCI) Core Configuration requirements outlined in the Compliance Bluetooth Version 4.0 specifications. Windows will terminate Bluetooth activity by unloading the inbox protocol drivers and their children, submitting the HCI_Reset command to the controller, and then setting the controller to the D3 logical power state, allowing bus drivers to power down the radio as appropriate. This recommendation may become a requirement for the future release of the Windows Hardware Compatibility Program at Microsoft's discretion.
Bluetooth Radio Management shall only be enabled for internal Bluetooth 4.0 enabled controllers. This will ensure that user will see a minimal disruption in service by ensuring that the Wi-FI device stack recovers and resumes connectivity to the network without the system needing a reboot.
The on/off state of Bluetooth-enabled controllers shall be controllable via software as described in Bluetooth Software Radio Switch. Description The following Pen device level requirement must be met and verified upon integration into a system. Devices must report support for Hang Detection and Recovery in WDI_GET_ADAPTER_CAPABILITIES.
On turning the radio back on, the Bluetooth stack for Windows shall resume the device to D0, allowing bus drivers to restart the device. Report Rate requirement for full requirement details. In either case, the user is faced with a negative experience in their connectivity and their general system usage is disrupted.