Help about Ram.

Hello, i plan on replacing my ram from 1gb to 2gb .
Is this good for buying to replace it? im not too sure and i dont wanna buy the wrong parts.

http://www.crucial.com/store/mpartsp...9D28C3A5CA7304

Here is my info.

Windows Vista (TM) Home Premium
Name Windows Vista Home Premium Service Pack 2
Property Value
HYDEIA-PC (Gateway 945GCT-M3)
Computer
Manufacturer Gateway
Family
Product Name 945GCT-M3
Model 945GCT-M3
Version 3.1
Memory 1015 MB Total, 81 MB Free
Memory Load 92%

Property Value
HYDEIA-PC (Gateway 945GCT-M3)
Summary
Manufacturer ELITEGROUP
Model 945GCT-M3
Version 3.1

Name Intel(R) Celeron(R) CPU E1200 @ 1.60GHz
Cpu Socket Socket 775 LGA
Max CPU Speed 4000MHz
Memory Summary Reported by BIOS
Memory Type DDR2
Installed Memory 1024 MBytes
Available Memory 1015 MBytes
Channels Dual
Maximum Capacity 4096 MBytes
Maximum Memory Module Size 1024 MBytes
Memory Slots 4
Error Correction None
System Slots
ISA 0
PCI 2
AGP 0
VL-BUS 0
EISA 0
PCMCIA 0
ExpressCard 0
MCA 0


Property Value
HYDEIA-PC (Gateway 945GCT-M3)
Memory Summary Reported by BIOS
Memory Type DDR2
Installed Memory 1024 MBytes
Available Memory 1015 MBytes
Channels Dual
Maximum Capacity 4096 MBytes
Maximum Memory Module Size 1024 MBytes
Memory Slots 4

Device Locator Slot 1
Memory Type DDR2 [PC2-5300]
Manufacturer Hyundai Electronics
Model HYMP164U64CP6-Y5
Serial Number 00005156
Capacity 512 MBytes
Speed 333 MHz (333 x 2 = 667)
Manufacturing Date 2008, Week 2
EPP SPD Support No
XMP SPD Support No
Supported Frequencies 200 MHz, 266 MHz, 333 MHz
Memory Timings
JEDEC #1 3.0-3-3-9-12 at 200 MHz, at 1.8 Volts (CL-RCD-RP-RAS-RC)
JEDEC #2 4.0-4-4-12-16 at 266 MHz, at 1.8 Volts (CL-RCD-RP-RAS-RC)
JEDEC #3 5.0-5-5-15-20 at 333 MHz, at 1.8 Volts (CL-RCD-RP-RAS-RC)
Device Locator Slot 2
Memory Type DDR2 [PC2-5300]
Manufacturer Hyundai Electronics
Model HYMP164U64CP6-Y5
Serial Number 04004159
Capacity 512 MBytes
Speed 333 MHz (333 x 2 = 667)
Manufacturing Date 2008, Week 2
EPP SPD Support No
XMP SPD Support No
Supported Frequencies 200 MHz, 266 MHz, 333 MHz
Memory Timings
JEDEC #1 3.0-3-3-9-12 at 200 MHz, at 1.8 Volts (CL-RCD-RP-RAS-RC)
JEDEC #2 4.0-4-4-12-16 at 266 MHz, at 1.8 Volts (CL-RCD-RP-RAS-RC)
JEDEC #3 5.0-5-5-15-20 at 333 MHz, at 1.8 Volts (CL-RCD-RP-RAS-RC)

wasnt too sure what i should post ..