小弟有台dell，升級記憶體（把原有記憶體換成不同廠牌二支512mb PC2100 DDR）後頻頻當機，不是自動開機就是瀏覽器跑一跑自動關掉等等，但在升級記憶體前一直很穩，所以我一直猜是記憶體的關係：這兩支分別是Kingston和Corsair，只裝其中一支都沒有問題，跑prime95 的torture test都可以跑一天，可是兩支一起插跑了3分鐘後就有error停住了，以下是我用cpuz看到的部分資訊，不知各位網兄有何建議？
只用一支kingston情形下：
Chipset
------------------------------------------------------------------------------

Northbridge Intel i845E rev. E0
Southbridge Intel 82801DB (ICH4) rev. 1
AGP Revision 2.0
AGP Transfert Rate 4x
AGP SBA supported, enabled
AGP Aperture 64 MBytes
Memory Type DDR
Memory Size 512 MBytes
Memory Frequency 132.9 MHz (1:1)
CAS# 2.0
RAS# to CAS# 3
RAS# Precharge 3
Cycle Time (tRAS) 6


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

Module #1

General
Memory type DDR-SDRAM
Manufacturer (ID) Kingston (7F98000000000000)
Size 512 MBytes
Max bandwidth PC2300 (142 MHz)
Part number KVR266X64C2/512

Attributes
Number of banks 2
Data width 64 bits
Correction None
Registered no
Buffered no

Timings table
Frequency (MHz) 133 142
CAS# 2.0 2.5
RAS# to CAS# delay 3 3
RAS# Precharge 3 3
TRAS# 6 7

兩支都裝情形下：
Chipset
------------------------------------------------------------------------------

Northbridge Intel i845E rev. E0
Southbridge Intel 82801DB (ICH4) rev. 1
AGP Revision 2.0
AGP Transfert Rate 4x
AGP SBA supported, enabled
AGP Aperture 64 MBytes
Memory Type DDR
Memory Size 1024 MBytes
Memory Frequency 132.9 MHz (1:1)
CAS# 2.5
RAS# to CAS# 3
RAS# Precharge 3
Cycle Time (tRAS) 6


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

Module #1

General
Memory type DDR-SDRAM
Manufacturer (ID) Corsair (7F7F9E0000000000)
Size 512 MBytes
Max bandwidth PC2100 (133 MHz)
Part number CM64SD512-2100

Attributes
Number of banks 2
Data width 64 bits
Correction None
Registered no
Buffered no

Timings table
Frequency (MHz) 100 133
CAS# 2.0 2.5
RAS# to CAS# delay 2 3
RAS# Precharge 2 3
TRAS# 5 6


Module #2

General
Memory type DDR-SDRAM
Manufacturer (ID) Kingston (7F98000000000000)
Size 512 MBytes
Max bandwidth PC2300 (142 MHz)
Part number KVR266X64C2/512

Attributes
Number of banks 2
Data width 64 bits
Correction None
Registered no
Buffered no

Timings table
Frequency (MHz) 133 142
CAS# 2.0 2.5
RAS# to CAS# delay 3 3
RAS# Precharge 3 3
TRAS# 6 7

謝謝建議！