我部電腦加ram問題~

我比cpu-z測過~

cpu係
Processor 1 (ID = 0)
Number of cores1
Number of threads1 (max 1)
NameIntel Pentium 4
CodenameNorthwood
SpecificationIntel(R) Pentium(R) 4 CPU 2.40GHz
PackageSocket 478 mPGA (platform ID = 2h)
CPUIDF.2.7
Extended CPUIDF.2
Brand ID9
Core SteppingC1
Technology0.13 um
Core Speed2400.0 MHz (24.0 x 100.0 MHz)
Rated Bus speed400.0 MHz
Stock frequency2400 MHz
Instructions setsMMX, SSE, SSE2
L1 Data cache8 KBytes, 4-way set associative, 64-byte line size
Trace cache12 Kuops, 8-way set associative
L2 cache512 KBytes, 8-way set associative, 64-byte line size
FID/VID Controlno

ram係
Chipset
------------------------------------------------------------------------------

NorthbridgeIntel i845E rev. E0
SouthbridgeIntel 82801DB (ICH4) rev. 01
Graphic InterfaceAGP
AGP Revision2.0
AGP Transfer Rate4x
AGP SBAnot supported, not enabled
Memory TypeDDR
Memory Size256 MBytes
Memory Frequency133.3 MHz (3:4)
CAS#2.0
RAS# to CAS#3
RAS# Precharge3
Cycle Time (tRAS)6


Memory SPD
------------------------------------------------------------------------------

DIMM #1

General
Memory typeDDR
Manufacturer (ID) (0000000000000000)
Size256 MBytes
Max bandwidthPC2300 (142 MHz)
Part numberRamaxel's Making

Attributes
Number of banks1
Data width64 bits
CorrectionNone
Registeredno
Bufferedno
EPPno

Timings table
Frequency (MHz)133142
CAS#2.02.5
RAS# to CAS# delay33
RAS# Precharge33
TRAS67
有冇勁人可以幫我睇下有冇得加ram同埋可以係邊到買到