hi. I have a sony vaio pcg-fx702 laptop with a 1400(1.2)AMD athlon mobile xp processor and it is around 3 years old. Could i change it to a 2600(2.2) AMD athlon m xp processor With out any conflicts or any other problems?

Sony Vaio itself gives no support for changing CPU's in laptops. That being said there is evidence of this being done at ones own risk.

Sony Vaio itself no longer recognizes your model but I found the spec sheet elsewhere:

Specifications for PCG-FX702
Processor Mobile AMD Athlon(TM) XP Processor featuring PowerNow! 1400+
Network Realtek RTL8139CL - 10Base-T/100Base-TX
Cache 256 KB (on die)
Memory 256 MB
More Info(Upgradeable to 512 MB)
Memory Information SO-DIMM 133Mhz (SDR)
Hard Disk Drive
20 GB (IDE)
Video Chipset ATI Rage Mobility-M1
Video Memory 8 MB SDR (on die)
Display 14.1" TFT XGA 1024x768
Sound Chip Analog Devices AD1881A 16-bit CD-quality stereo sound 3D Surround AC97
Floppy Disk Drive 3.5" 1.44 MB
Optical
CD-ROM : 24 x Speed
CD-R : 8 x Speed
CD-RW : 8 x Speed
DVD-ROM : 8 x Speed
Ports on Unit 1 PC Card Slot(s), 4 pins i.Link Port, 2 USB Port(s) (full / low speed )
Ports on Unit Headphones Out, Docking Station Connector, Microphone In, Ethernet Port, Parallel Port, Serial Port, TV Out, VGA Monitor Out,
PC Card Slots 1 PCMCIA type I or 1 PCMCIA type II Cards and Cardbus support
Modem built-in modem V.90/K56Flex (56kbps) data/fax modem
Keyboard 87 Keys Hotkeys
Mouse Touchpad
AC Adapter PCGA-AC19V
Battery PCGA-BP71A
Weight 3200g
Multi-purpose Bay Second Battery Pack, Floppy Disk Drive
Dimensions (W x H x D) 324mm x 35.8 to 46.9mm x 265.5 mm
Operating System
Windows XP Home
Software Adobe Acrobat Reader, DigitalPrint, Dvgate, Internet Explorer, Movie Shaker, Norton Antivirus, Photoshop Elements, QuickTime, RealPlayer, Smart Capture, SonicStage, UI Design Selector, VAIO Edit Components, VAIO System Information, VAIO Web Phone, WinDVD for VAIO
Warranty 1 Year
2 years for Germany, Austria, Czech Republic and Portugal *

(1) This Accessory can be optional depending on your model
* Depending on the model and if bought after September 2003

From other posts I see the basic procedure for insuring compatibility would be to ID your motherboard and check the board specs.

See if Belarc can ID your board:

http://www.belarc.com/free_download.html

Look under Main Circuit Board

thanks again for the help. think i need a new laptop.

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