tomasf

Distinguished
Sep 13, 2006
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Hello
I have a problem with system
I have recently bought 2 new memory dims, same brand and model than the ones I had before, OCZ Gold 800mhz 2x1GB. But the new ones were a little different. However using 3 dims the system works fine but when I put on the fourth one the pc becomes slow and unresponsive.

MSI P6N SLI
C2D 6550
2x9600gt 512MB
Samsung 250 GB
WD 500 GB



OLD:
Manufacturer : OCZ
Part Number : OCZ2G8001G Serial Number : Unspecified
Type : DDR2-SDRAM PC2-6400 (399 MHz) - [DDR2-800]
Format : Regular UDIMM (133,35 x 3)
Size : 1024 MB (2 ranks, 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 1.8v
Prefetch Buffer : 4-bit
Supported Frequencies : 266 MHz, 333 MHz, 400 MHz
CAS Latency (tCL) : 3 clocks @266 MHz, 4 clocks @333 MHz, 5 clocks @400 MHz
RAS to CAS (tRCD) : 4 clocks @266 MHz, 5 clocks @333 MHz, 5 clocks @400 MHz RAS Precharge (tRP) : 4 clocks @266 MHz, 5 clocks @333 MHz, 5 clocks @400 MHz
Cycle Time (tRAS) : 10 clocks @266 MHz, 13 clocks @333 MHz, 15 clocks @400 MHz
Min TRC : 15 clocks @266 MHz, 19 clocks @333 MHz, 23 clocks @400 MHz

NEW:
Manufacturer : OCZ
Part Number : OCZ2G8001G Serial Number : Unspecified Type : DDR2-SDRAM PC2-6400 (399 MHz) - [DDR2-800] Format : Regular UDIMM (133,35 x 3) Size : 1024 MB (1 ranks, 8 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 1.8v
Prefetch Buffer : 4-bit
Manufacture : 2000
Supported Frequencies : 266 MHz, 333 MHz, 400 MHz
CAS Latency (tCL) : 3 clocks @266 MHz, 4 clocks @333 MHz, 5 clocks @400 MHz
RAS to CAS (tRCD) : 4 clocks @266 MHz, 5 clocks @333 MHz, 5 clocks @400 MHz
RAS Precharge (tRP) : 4 clocks @266 MHz, 5 clocks @333 MHz, 5 clocks @400 MHz
Cycle Time (tRAS) : 10 clocks @266 MHz, 13 clocks @333 MHz, 15 clocks @400 MHz
Min TRC : 16 clocks @266 MHz, 20 clocks @333 MHz, 24 clocks @400 MHz
Can anyone please help me?
Thanks!
 

IH8U

Distinguished
Dec 29, 2007
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Sounds like eithe a bad mem slot (very common for MSI), or a bad stick of RAM. The RAM would be the cheapest to replace, and normally I would go with 2x2GB sticks instead of 4x1GB. After replacing the RAM, run Memtest for a while to check it for errors.

http://www.newegg.com/Product/Product.aspx?Item=N82E16820231122
$49 G.Skill DDR2 800 2x2GB (I prefer G.Skill over OCZ)(This also has more stable timings than the OCZ Gold. 5-5-5-15)