Upgraded RAM Problem

bookerhf

New Member
I have a Sony VAIO PCG-K4x Laptop and it came with 512 mb of RAM (256 x 2) and Windows XP. The manual says the mother board can be upgraded to 1GB of Ram (512 x 2). I installed the the 512 x 2 of RAM but it only recognizes 256 x 2 mb. I ran PC wizard and it sees the 512 x 2 of RAM, but shows that only 256 mb is reading per stick. I went into the BIOS and it is only showing 256 x 2 and it will not let me manually change the RAM settings. Any ideas?
 
Ram

I have service pack 3 installed. Here is what PC Wizard is showing:

General Information :
SODIMM1 (Bank 0 ) : 256 MB - SODIMM
SODIMM2 (Bank 1 ) : 256 MB - SODIMM

Information SPD EEPROM (SODIMM1) :
Manufacturer : Unspecified
Part Number : Unspecified
Serial Number : Unspecified
Type : DDR-SDRAM PC-3200 (200 MHz) - [DDR-400]
Size : 512 MB (1 rows, 4 banks)
Module Buffered : No
Module Registered : No
Module SLi Ready (EPP) : No
Width : 64-bit
Error Correction Capability : No
Max. Burst Length : 8
Refresh : Reduced (.5x)7.8 µs, Self Refresh
Voltage : SSTL 2.5v
Prefetch Buffer : 2-bit
Manufacture : 2000
Supported Frequencies : 133 MHz, 166 MHz, 200 MHz
CAS Latency (tCL) : 2 clocks @133 MHz, 2.5 clocks @166 MHz, 3 clocks @200 MHz
RAS to CAS (tRCD) : 2 clocks @133 MHz, 3 clocks @166 MHz, 3 clocks @200 MHz
RAS Precharge (tRP) : 2 clocks @133 MHz, 3 clocks @166 MHz, 3 clocks @200 MHz
Cycle Time (tRAS) : 6 clocks @133 MHz, 7 clocks @166 MHz, 8 clocks @200 MHz

Information SPD EEPROM (SODIMM2) :
Manufacturer : Unspecified
Part Number : Unspecified
Serial Number : Unspecified
Type : DDR-SDRAM PC-3200 (200 MHz) - [DDR-400]
Size : 512 MB (1 rows, 4 banks)
Module Buffered : No
Module Registered : No
Module SLi Ready (EPP) : No
Width : 64-bit
Error Correction Capability : No
Max. Burst Length : 8
Refresh : Reduced (.5x)7.8 µs, Self Refresh
Voltage : SSTL 2.5v
Prefetch Buffer : 2-bit
Manufacture : 2000
Supported Frequencies : 133 MHz, 166 MHz, 200 MHz
CAS Latency (tCL) : 2 clocks @133 MHz, 2.5 clocks @166 MHz, 3 clocks @200 MHz
RAS to CAS (tRCD) : 2 clocks @133 MHz, 3 clocks @166 MHz, 3 clocks @200 MHz
RAS Precharge (tRP) : 2 clocks @133 MHz, 3 clocks @166 MHz, 3 clocks @200 MHz
Cycle Time (tRAS) : 6 clocks @133 MHz, 7 clocks @166 MHz, 8 clocks @200 MHz

Memory Controller Information :
Memory Controller : System Memory
Location : Mainboard
Error Correction Capability : No
Number of connectors : 2
Max. Module Size : -2097152 KB
 
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