cpu

i hv a lenovo notebook with intel celeron cpu.initially i had 512 mb ram and now when i installed one more ram of 512 mb,when i try to see my system properties,i find written -
intel celeron cpu 540 @1.8ghz
1.40 ghz,0.99 gb of ram
physical address extension

i dont know what this 1.4 ghz is and what this physical address extension is...can anyone guide me

intel celeron cpu 540 @1.8ghz
1.40 ghz,0.99 gb of ram
physical address extension


If I'm reading it right,

intel celeron cpu 540 @1.8ghz = model & max rated speed of the CPU

1.40 ghz = Current speed of the CPU, should go to max speed when needed.
[cooling feature, slower running = cooler]

0.99 gb of ram = amount of installed memory.
[Not unusual for it to be a little off]

physical address extension = a feature of the CPU that allows it to use more then 4GB of memory.

thank you so much for letting me know the exact meaning of the terms....when i hadnt installed the additional ram and my system had only 512 mb of ram,then my system property just showed 1.8ghz,with no mention of 1.4 ghz ,the 1.4 ghz appeared after i installed additional ram...is it common for this sort of thing to happen?

Adding memory shouldn't have changed the speed of the CPU.
You might try going to the BIOS setup > Exit, load the defaults ,save & exit.

What model is the unit ?

i copied this information about my system from the software everest..hope this will help u understand
the case better

Field Value
Computer
Operating System Microsoft Windows XP Professional
OS Service Pack Service Pack 2
DirectX 4.09.00.0904 (DirectX 9.0c)
Computer Name BSC
User Name bsc

Motherboard
CPU Type Unknown, 1866 MHz (8.5 x 220)
Motherboard Name Unknown
Motherboard Chipset Unknown
System Memory 1014 MB
BIOS Type Phoenix (08/13/07)
Communication Port ZTE Service Port FFFD (COM14)
Communication Port ZTE Voice Port FFFD (COM15)

Display
Video Adapter Mobile Intel® 965 Express Chipset Family (256 MB)
Video Adapter Mobile Intel® 965 Express Chipset Family (256 MB)
Monitor Plug and Play Monitor [NoDB]
Monitor Plug and Play Monitor [NoDB]
Monitor Plug and Play Monitor [NoDB]

Multimedia
Audio Adapter Realtek HD Audio output

Storage
IDE Controller Standard Dual Channel PCI IDE Controller
Disk Drive Hitachi HTS541680J9SA00 (74 GB, IDE)
Disk Drive Generic- Multi-Card USB Device
Optical Drive Optiarc DVD RW AD-7560A
SMART Hard Disks Status OK

Partitions
C: (NTFS) 24999 MB (9499 MB free)
D: (NTFS) 24999 MB (13199 MB free)
E: (NTFS) 26309 MB (14401 MB free)
Total Size 74.5 GB (36.2 GB free)

Input
Keyboard HID Keyboard Device
Keyboard Standard 101/102-Key or Microsoft Natural PS/2 Keyboard
Mouse HID-compliant mouse
Mouse PS/2 Compatible Mouse

Network
Network Adapter Broadcom 802.11g Network Adapter
Network Adapter Broadcom NetLink ™ Fast Ethernet
Modem Motorola SM56 Data Fax Modem
Modem ZTE USB Modem FFFD

Peripherals
Printer Send To OneNote 2007
USB1 Controller Standard Universal PCI to USB Host Controller [NoDB]
USB1 Controller Standard Universal PCI to USB Host Controller [NoDB]
USB1 Controller Standard Universal PCI to USB Host Controller [NoDB]
USB1 Controller Standard Universal PCI to USB Host Controller [NoDB]
USB1 Controller Standard Universal PCI to USB Host Controller [NoDB]
USB2 Controller Standard Enhanced PCI to USB Host Controller [NoDB]
USB2 Controller Standard Enhanced PCI to USB Host Controller [NoDB]
USB Device USB Composite Device
USB Device USB Composite Device
USB Device USB Human Interface Device
USB Device USB Human Interface Device
USB Device USB Human Interface Device
USB Device USB Mass Storage Device
USB Device ZTE Service Port FFFD (COM14)
USB Device ZTE USB Modem FFFD
USB Device ZTE Voice Port FFFD (COM15)
Battery Microsoft AC Adapter
Battery Microsoft ACPI-Compliant Control Method Battery

[ BIOS ]

BIOS Properties:
Vendor LENOVO
Version 05CN36WW(V1.20)
Release Date 08/13/2007
Size 1024 KB
Boot Devices Floppy Disk, Hard Disk, CD-ROM, LS-120
Capabilities Flash BIOS, Shadow BIOS, Selectable Boot, EDD, BBS
Supported Standards DMI, APM, ACPI, ESCD, PnP
Expansion Capabilities PCI, USB

[ System ]

System Properties:
Manufacturer LENOVO
Product Lenovo 3000 G410
Serial Number 3000 G410
Universal Unique ID 28297984-A40111DC-AA33001B-38A222FE
Wake-Up Type Power Switch

[ Motherboard ]

Motherboard Properties:
Manufacturer LENOVO
Product IHL00
Version REFERENCE
Serial Number 2090638901749

[ Chassis ]

Chassis Properties:
Manufacturer No Enclosure
Version N/A
Serial Number None
Asset Tag No Asset Tag
Chassis Type Notebook
Boot-Up State Safe
Power Supply State Safe
Thermal State Safe
Security Status None

[ Processors / A0 ]

Processor Properties:
Manufacturer Intel
Version A0
Maximum Clock 2048 MHz
Current Clock 1860 MHz
Type Central Processor
Voltage 3.3 V
Status Enabled
Upgrade ZIF
Socket Designation U2E1

[ Caches / L1 Cache ]

Cache Properties:
Type Internal
Status Enabled
Operational Mode Write-Back
Maximum Size 64 KB
Installed Size 64 KB
Supported SRAM Type Asynchronous, Burst, Pipeline Burst
Current SRAM Type Asynchronous
Socket Designation L1 Cache

[ Caches / L2 Cache ]

Cache Properties:
Type External
Status Enabled
Operational Mode Write-Back
Maximum Size 4096 KB
Installed Size 1024 KB
Supported SRAM Type Asynchronous, Burst, Pipeline Burst
Current SRAM Type Burst
Socket Designation L2 Cache

[ Memory Devices / M1 ]

Memory Device Properties:
Form Factor SODIMM
Type Detail Synchronous
Size 512 MB
Speed 533 MHz
Total Width 32-bit
Data Width 32-bit
Device Locator M1
Bank Locator Bank 0

[ Memory Devices / M2 ]

Memory Device Properties:
Form Factor SODIMM
Type Detail Synchronous
Size 512 MB
Speed 533 MHz
Total Width 32-bit
Data Width 32-bit
Device Locator M2
Bank Locator Bank 1

can u guide me how to set the features to default from bios..i tried to copy the exact information from everest

Well , that sort of told me what I wanted to know.
There should be an actual model number on it somewhere , like 33Q, 44Q, etc.

To access the BIOS turn the unit off.
Turn it on & tap the F1 key.
That should get you there.

As far as I know most laptops have power saving features.
One of them is usually to run the CPU slower to save power until the full speed is needed.
It's a battery life thing.
The less power your unit uses the longer the battery lasts when it's running off of the battery.

Has it got noticably slower since you added the memory or does it seem faster ?

no, since adding the memory i haven't noticed my computer lowing down..however on occasion there are some problems but i think they are more related to the operating system...thanks for helping me out,since its a battery saving feature,i think i should not try to do any changes to speed the cpu is running at since i haven't seen my computer slowing down..the cpu normally heats up to 75-80 degree Celsius when i run heavy applications,but normally it runs at 65 degrees...

Manufacturer LENOVO
Product Lenovo 3000 G410
Serial Number 3000 G410