Unknown Device - Compaq 6735s Laptop

JAM

New member
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Hoping somebody can help, I have installed W7 onto my HP/Compaq 6735s and picked up all the drivers except one "Unknown Device".

I have downloaded all drivers from HP and tried to install them all, however the unknown device still remains, any ideas?

Much appreciated
 

My Computer

Computer Manufacturer/Model Number
Compaq 6735s
OS
Windows 7
Memory
4GB

My Computer

Computer Manufacturer/Model Number
Self Built
OS
Windows 7 ultimate 64 bit / XP Home sp3
CPU
intel Core 2 Duo E8400 3.0ghz
Motherboard
Asus P5ND bios 1401
Memory
8 gigs 1066 OCZ Fata1ty
Graphics Card(s)
EVGA GTX 580 Call of Duty Black Ops Edition
Sound Card
Creative Soundblaster Audigy 2zs
Monitor(s) Displays
Asus 24in LCD's 2MS X2
Screen Resolution
1920x1080p @60Hz
Hard Drives
WD Caviar 500 Black/ WD Caviar 200 Blue
PSU
OCZ 700W GameXtreme
Case
NZXT Apollo
Cooling
Corsair H50 CPU/120mm x3 /60mm x2 /Corsair Dominator Ram
Keyboard
Logitech Bluetooth Wireless MX5000
Mouse
Logitech Bluetooth Wireless MX1000
Internet Speed
Download 19.83 Upload 0.97
Other Info
Logitech Z2300 Speakers/ Bose Noise Cancelling Headphones/Avermedia PCI-e Hybrid TV Bravo/Epson NX415 all in one/ 4 Port Powered USB Hub/ LG 10x Bluray Burner /TSST Corp DVDRW External
Hi Jam,
Have you tried updating the driver via device manager, perhaps letting windows search for the driver.

Also any error code that is accompanied in the device manager would be helpful as well.
 

My Computer

Computer Manufacturer/Model Number
HP G60-125NR Notebook PC
OS
Windows 7 Professional
CPU
2.00 GHz AMD Turion X2 RM-70 Dual-Core Mobile Processor
Motherboard
Integrated NVIDIA nForce Chipset
Memory
3072 MB
Graphics Card(s)
NVIDIA GeForce 8200M
Monitor(s) Displays
15.6" Diagonal High Definition HP Brightview Display
Screen Resolution
1366x768
Hard Drives
250 GB (5400 rpm)
Keyboard
Full size keyboard with integrated numeric keypad
Mouse
Touch Pad with dedicated vertical scroll Up/Down pad
I did a W7 install on a Compaq 6720s the other day.

Same problem as you describe OP. However if you look at the codes you can dig out of device manager against the unknown device, and Google them, then you may find it's something as minor as the button-key driver (which controls the customised buttons for screen brightness, sleep, ext' monitor, etc, etc...)

Memory tells me the unknown device in my case turned up under network adapters in the DM window, which was obviously down to W7 'guessing' wrongly what it was.
 

My Computer

Computer Manufacturer/Model Number
Custom built machine
OS
W7 x64
CPU
Intel Q9300 2.5Ghz Quad LGA775 (Would like Q9650)
Motherboard
Gigabyte GA-EP45T-UD3R (F6 Bios)
Memory
4Gb OCZ Gold 1,333Mhz
Graphics Card(s)
Palit HD4850 O/C Sonic 512Mb DDR3, Dual DViD's
Sound Card
Azalia to twin Samson 50w Studio Monitors
Monitor(s) Displays
Twin Dell (E-IPS) U2311H 23.6" Screens
Screen Resolution
1920 x 1080 @ 60Hz
Hard Drives
Crucial M4 SSD, archives on twin Western Digital Caviar Black WD2002FAEX, 2TB, 7200rpm HDD's, Samsung Ritemaster CD/DVD Burner...
PSU
OCZ 600w
Case
Lian-Li PC8 acoustifoamed' aluminium tower
Cooling
Scythe 140mm Zipang
Keyboard
Cherry PS/2 custom model
Mouse
Lenovo USB laser "Thinkpad" Mouse
Internet Speed
ADSL2+ @14Mbps downstream & Cat6 Gigabit Ethernet
Antivirus
NOD32
Browser
Opera
Other Info
Silicon Dust HD Homerun Dual FTA (Ethernet) TV Tuners, Dray Tek Vigor 2850Vn router and 8x HP Gigabit Switch. Lian-Li CR26 Card Reader, Canon MF4430 iSensys laser printer/scanner.
If it is an Unknown Device than chances are that you won't even get a DEV and VEN ID from Device Manager...

If he does post one...I can tell him what it is and hopefully provide a working driver for it
 

My Computer

Computer Manufacturer/Model Number
Compal JFT02 (Custom Build Laptop)
OS
Windows 7 Home Premium x64 - Mac OS X 10.6.4 x64
CPU
Intel Core 2 Duo T9300 2.5 GHz
Motherboard
JFT02
Memory
4GB Kingston DDR2-800
Graphics Card(s)
NVIDIA Geforce 8600M GT (512MB Model)
Sound Card
Realtek HD Audio
Monitor(s) Displays
WUXGA Standard Laptop Display
Screen Resolution
1680*1050
Hard Drives
Toshiba 320GB 5400RPM Laptop HD
PSU
Standard Laptop Power Supply
Case
Standard Laptop Case
Cooling
Standard Laptop Cooling
Keyboard
Standard Laptop 105 Key-Keyboard
Mouse
Synaptics Touchpad
Internet Speed
Verizion Online DSL 3360/864 kbs (dl/up)
Can I point you to a link elsewhere on an HP Forum...
 

My Computer

Computer Manufacturer/Model Number
Custom built machine
OS
W7 x64
CPU
Intel Q9300 2.5Ghz Quad LGA775 (Would like Q9650)
Motherboard
Gigabyte GA-EP45T-UD3R (F6 Bios)
Memory
4Gb OCZ Gold 1,333Mhz
Graphics Card(s)
Palit HD4850 O/C Sonic 512Mb DDR3, Dual DViD's
Sound Card
Azalia to twin Samson 50w Studio Monitors
Monitor(s) Displays
Twin Dell (E-IPS) U2311H 23.6" Screens
Screen Resolution
1920 x 1080 @ 60Hz
Hard Drives
Crucial M4 SSD, archives on twin Western Digital Caviar Black WD2002FAEX, 2TB, 7200rpm HDD's, Samsung Ritemaster CD/DVD Burner...
PSU
OCZ 600w
Case
Lian-Li PC8 acoustifoamed' aluminium tower
Cooling
Scythe 140mm Zipang
Keyboard
Cherry PS/2 custom model
Mouse
Lenovo USB laser "Thinkpad" Mouse
Internet Speed
ADSL2+ @14Mbps downstream & Cat6 Gigabit Ethernet
Antivirus
NOD32
Browser
Opera
Other Info
Silicon Dust HD Homerun Dual FTA (Ethernet) TV Tuners, Dray Tek Vigor 2850Vn router and 8x HP Gigabit Switch. Lian-Li CR26 Card Reader, Canon MF4430 iSensys laser printer/scanner.
The link in that HP forum was for a HP Mini Note.
This is the link to the W7 driver page for you model
And direct link to the product mentioned above:
HP 3D DriveGuard for the HP/Compaq 6735

It could also be HP ProtectTools Security Manager Suite
which appears to contain the driver for a fingerprint reader. If you installed W7 using a clean install method, I'd be inclined to not install the complete Suite as it also contains drive encryption protection products that could mess up W7.
post back if the first fix didn't work for you
 
Last edited:

My Computer

OS
XP Pro/Vista Ultimate (64)/Windows 7 Ultimate Signature Edition(64)
CPU
Core 2 Duo E8500 @ stock
Motherboard
Gigabyte EP45-UD3R
Memory
8Gb (4 X 2Gb) Corsair Dominator 1066Mhz DDR2
Graphics Card(s)
XFX ATI Radeon 4870 1Gb
Sound Card
Onboard 7.1
Monitor(s) Displays
BenQ E2200Hd, Asus VW161D, HP L1506
Screen Resolution
1920 X 1080
Hard Drives
Seagate 7200.12 500Gb
2 X Hitachi 1Tb
PSU
CoolerMaster 650 EPD
Case
Thermaltake
Cooling
2 X Noctua 120mm's, Stock Intel
Keyboard
Logitech
Mouse
Logitech
i have having the same problem .
my graphics are not displaying properly!!!

ACPI\HPQ0004

although ATI Radeon 3200 HD is installed in Device Manager.
 

My Computer

OS
Windows 7 Ultimate x32
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