HP Compaq nx8220 SD cards driver problems solved

First make sure you already install the
Texas Instruments Media Card Driver:
2.0.0.7 A (sp35308)
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This package contains the driver for the Texas Instruments PCI (TI-PCI) 6x12/7x12 Cardbus (Media Card Reader) for the listed notebook models and operating systems. Applicable for the following model (with Windows Vista)

HP Compaq nc2400 Notebook PC
HP Compaq nc6400 Notebook PC
HP Compaq nc8430 Notebook PC
HP Compaq nw8440 Notebook PC
HP Compaq nw9440 Notebook PC
HP Compaq nx6315 Notebook PC
HP Compaq nx6325 Notebook PC
HP Compaq nx6330 Notebook PC
HP Compaq nx7300 Notebook PC
HP Compaq nx7400 Notebook PC
HP Compaq nx8420 Notebook PC
HP Compaq nx9420 Notebook PC
HP Pavilion dv5000 Notebook PC Series
HP Pavilion dv8000 Notebook PC Series

After install it only recognize up to 1GB only, so you need to do some work:
1. open run, type "regedit" and then find this line
HKEY_LOCAL_MACHINE\SYSTEM\Co­ ntrolSet001\Services\tifm21\Parameters

Original Key Value: SDParam = 16 (Decimal)
New Key Value: SDParam = 1