256mb recognized as 128mb - PCCHIPS M748LMRT (please help!)
Posted: Sun Nov 16, 2003 8:16 am
I have a M748 LMRT PCchips (I know, people told me PCchips is a bad choice...) motherboard and I am having some RAM expansion problems. My PC is a Pentium III 700Mhz with 3 memory slots. The manual states that I can have up to three 256mb memory sticks. The first stick that came when I bought my PC is a 128mb PC100 with modules on both sides. I made then a first expansion with more 128mb. I bought a PC133 memory stick but I had no problems, the only thing is that it has modules on only one side, but it works. Last week I decided to have my last memory upgrade (want to have 516mb). I bought a PC100 256mb memory stick with modules on both sides, but my system is reading only half of it. I was using a BIOS dated 05/18/2000S and after this made an upgrade to a BIOS I found at the PCchips FTP site dated 09/14/2001S (used the aminf336.exe flash utility). It didn't change anything, besides the fact that now it seems that I can have up to 1536mb, as you can see by this analysis I ran with BIOS Agent:
Program: eSupport.com BIOS Agent Version 3.23
BIOS Date: 09/14/01
BIOS Type: American Megatrends
BIOS ID: 62-0914-999900-00101111-071595-000000-M748LMRT
OEM Sign-On: Release 09/14/2001S
Chipset: SiS 620 rev 2
Superio: ITE 8661/SiS 6801 rev 6 found at port 279h
OS: Win2000
CPU: Pentium III 700 Mhz MAX: 800 Mhz
BIOS ROM In Socket: Yes
BIOS ROM Size: 256K
Memory Installed: 384 MB
Memory Maximum: 1536 MB
Memory Slot 01: 128 MB
Memory Slot 02: 128 MB
Memory Slot 03: 128 MB
I also ran a mainboard information report by SANDRA and would like to share with you guys these parts of the report:
Memory Controller
Error Detection Method : None
Error Correction Capability : None
Supported/Current Memory Interleave : 1-way / 1-way
Number of Memory Slots : 3
Maximum Installable Memory : 1536MB
Maximum Module Size : 512MB
Supported Memory Types : DIMM, SDRAM
Supported Memory Voltages : 3.3V
Physical/BIOS Memory Banks
DIMM1 (RASL-0 RASL-1) : 128MB DIMM SDRAM single-bank
DIMM2 (RASL-2 RASL-3) : 128MB DIMM SDRAM single-bank
DIMM3 (RASL-4 RASL-5) : 128MB DIMM SDRAM single-bank
Logical/Chipset Memory Banks
Bank 0 Setting : 128MB SDRAM 8-1-1-1R 6-2-2-2W 3-4-5CL
Bank 1 Setting : 128MB SDRAM 8-1-1-1R 6-2-2-2W 3-4-5CL
Bank 2 Setting : 128MB SDRAM 8-1-1-1R 6-2-2-2W 3-4-5CL
Speed : 1x 100MHz (100MHz data rate)
Multiplier : 1/1x
Memory Module(s)
Memory Module 1 : Samsung 256MB 16x(32Mx4) SDRAM PC133U-333-542 (CL3 upto 133MHz)
Memory Module 2 : D730C029 128MB 8x(16Mx8) SDRAM PC133U-333-542 (CL3 upto 133MHz) (CL2 upto 100MHz)
Memory Module 3 : 128MB 8x(16Mx8) SDRAM PC100-333-622 (CL3 upto 125MHz) (CL2 upto 83MHz)
Ps. Module 1 - Memory I just bought
Module 2 - My first upgrade
Module 3 - the original memory that came when I bought my PC
On a side note: I ran my PC with only the 256mb stick and it also worked with only half of it...
Sorry, I know this a big text but I wanted to give the maximum information I could to see if someone can help me. And sorry about any english mistakes.
Cheers from the Brazilian tropics!
Program: eSupport.com BIOS Agent Version 3.23
BIOS Date: 09/14/01
BIOS Type: American Megatrends
BIOS ID: 62-0914-999900-00101111-071595-000000-M748LMRT
OEM Sign-On: Release 09/14/2001S
Chipset: SiS 620 rev 2
Superio: ITE 8661/SiS 6801 rev 6 found at port 279h
OS: Win2000
CPU: Pentium III 700 Mhz MAX: 800 Mhz
BIOS ROM In Socket: Yes
BIOS ROM Size: 256K
Memory Installed: 384 MB
Memory Maximum: 1536 MB
Memory Slot 01: 128 MB
Memory Slot 02: 128 MB
Memory Slot 03: 128 MB
I also ran a mainboard information report by SANDRA and would like to share with you guys these parts of the report:
Memory Controller
Error Detection Method : None
Error Correction Capability : None
Supported/Current Memory Interleave : 1-way / 1-way
Number of Memory Slots : 3
Maximum Installable Memory : 1536MB
Maximum Module Size : 512MB
Supported Memory Types : DIMM, SDRAM
Supported Memory Voltages : 3.3V
Physical/BIOS Memory Banks
DIMM1 (RASL-0 RASL-1) : 128MB DIMM SDRAM single-bank
DIMM2 (RASL-2 RASL-3) : 128MB DIMM SDRAM single-bank
DIMM3 (RASL-4 RASL-5) : 128MB DIMM SDRAM single-bank
Logical/Chipset Memory Banks
Bank 0 Setting : 128MB SDRAM 8-1-1-1R 6-2-2-2W 3-4-5CL
Bank 1 Setting : 128MB SDRAM 8-1-1-1R 6-2-2-2W 3-4-5CL
Bank 2 Setting : 128MB SDRAM 8-1-1-1R 6-2-2-2W 3-4-5CL
Speed : 1x 100MHz (100MHz data rate)
Multiplier : 1/1x
Memory Module(s)
Memory Module 1 : Samsung 256MB 16x(32Mx4) SDRAM PC133U-333-542 (CL3 upto 133MHz)
Memory Module 2 : D730C029 128MB 8x(16Mx8) SDRAM PC133U-333-542 (CL3 upto 133MHz) (CL2 upto 100MHz)
Memory Module 3 : 128MB 8x(16Mx8) SDRAM PC100-333-622 (CL3 upto 125MHz) (CL2 upto 83MHz)
Ps. Module 1 - Memory I just bought
Module 2 - My first upgrade
Module 3 - the original memory that came when I bought my PC
On a side note: I ran my PC with only the 256mb stick and it also worked with only half of it...
Sorry, I know this a big text but I wanted to give the maximum information I could to see if someone can help me. And sorry about any english mistakes.
Cheers from the Brazilian tropics!