upgrading ram reducing my speed

[natvie]

hI
i have this weird issue with ram.. i have an old pc with me, its a pentium550mhz intel i810 mothermotherboard and it had 128 mb sdram. so recently i thought of upgrading it to 512mb ram. so i bought this 256mb X 2 sticks. its all 133 mhz. ie same speed.
now the problem is ..when i put this 512 mb ram.. my booting time takes almost 20 minutes.. so i checked it with only 256 mb in the slot.. then it took almost 7-8 mins.. but initially when i had only 128mb ram..it usedto take like 2 - 3 mins only... i use ubuntu 6.04

can anybody help me out
thank u

[i92guboj]

hI
i have this weird issue with ram.. i have an old pc with me, its a pentium550mhz intel i810 mothermotherboard and it had 128 mb sdram. so recently i thought of upgrading it to 512mb ram. so i bought this 256mb X 2 sticks. its all 133 mhz. ie same speed.
now the problem is ..when i put this 512 mb ram.. my booting time takes almost 20 minutes.. so i checked it with only 256 mb in the slot.. then it took almost 7-8 mins.. but initially when i had only 128mb ram..it usedto take like 2 - 3 mins only... i use ubuntu 6.04

can anybody help me out
thank u

After booting, how much ram do you have available?

Maybe one of the modules is broken, try them separately.

[natvie]

i checked the RAMs seperately..its working, count are all rite. i tried with one 256 mb ram... still my computer is runnin extremely slow. when i put two 256 (both are same frequency 133Mhz)... its gettin even slower

[i92guboj]

i checked the RAMs seperately..its working, count are all rite. i tried with one 256 mb ram... still my computer is runnin extremely slow. when i put two 256 (both are same frequency 133Mhz)... its gettin even slower

Maybe there is an specific timing problem with that concrete model of ram and your board. Try googling for both and see if there's anything.

You might also be able to tweak the ram timing on your bios or via jumpers on your motherboard and see what happens.

[natvie]

mabe.. but i really dont know how to do tat.. can u help me

[i92guboj]

mabe.. but i really dont know how to do tat.. can u help me

We can try. But we need to know the manufacturer and model of your ram sticks and your mother board so we can research a bit more.

[bigtomrodney]

Many distros come with a utility called Memtest86 on their install media. I would suggest running that to get a full breakdown on any issues you are having with your RAM.

[scm]

Does your BIOS POST check all your RAM - that's the only reason I can think of that would make startup times increase with an increase in RAM?

[oz]

Welcome to the forums, natvie!

Just curious... are you dual-booting by chance? If you are, does the same thing happen under a Windows boot?

[natvie]

yea.. i do have dual OS.. the interesting thing is that these RAMs are working perfectly with my windows XP..jez fine.. the problem is in linux only.

my motherboard details are:

Processor(s)

Number of processors: 1
Number of cores: 1 per processor
Number of threads: 1 per processor
Name: Intel Pentium III
Code: Name Katmai

Specification:

Package: Slot 1 SECC2
Family/Model/Stepping: 6.7.3
Extended Family/Model :6.7
Core Stepping: kC0
Technology: 0.25 um
Core Speed: 551.2 MHz
Multiplier x Bus speed: 5.5 x 100.2 MHz
Stock frequency: 550 MHz
Instruction sets: MMX, SSE
L1 Data cache (per processor) 16 KBytes, 4-way set associative, 32-byte line size
L1 Instruction cache (per processor) 16 KBytes, 4-way set associative, 32-byte line size
L2 cache (per processor) 512 KBytes, 4-way set associative, 32-byte line size

Chipset & Memory

Northbridge: Intel i810 rev. A3
Southbridge: Intel 82801AA (ICH) rev. 02


Memory Type: SDRAM
Memory Size: 512 MBytes
CAS# Latency (tCL) 3.0 clocks
RAS# to CAS# (tRCD) 3 clocks
RAS# Precharge (tRP) 3 clocks
Cycle Time (tRAS) 6 clocks
Bank Cycle Time (tRC) 8 clocks

System

System Manufacturer: PCCHIPS
System Name: M766LMRT
System S/N: 00000000
Mainboard Vendor: PCCHIPS
Mainboard Model: M766LMRT
BIOS Vendor American Megatrends Inc.
BIOS Version 62710
BIOS Date 07/15/97

Memory SPD

Module 1 SDRAM, PC133 (133 MHz), 256 MBytes, Xerox
Module 2 SDRAM, PC133 (133 MHz), 256 MBytes, Xerox

Software

wat should i do.. ?