Advice appreciated on memory setup

  Never again 09:15 23 Feb 2005
Locked

I have just bought some 256mb 168 pin SDRAM to improve performance in my pc and when I fitted it it only showed 767mb in my pc properties.

I have a utility called Everest Home Edition which states that all my sticks are 256mb.

So on the basis of this I should gave 1gb ram.

Why is it showing reduced ram?

The everest information is enclosed in the next post as it is rather lenghty.

Thanks

  Never again 09:16 23 Feb 2005

Field Value
Physical Memory
Total 767 MB
Used 245 MB
Free 522 MB
Utilization 32 %

Swap Space
Total 2725 MB
Used 182 MB
Free 2543 MB
Utilization 7 %

Virtual Memory
Total 3493 MB
Used 427 MB
Free 3066 MB
Utilization 12 %

Dimm 1

Field Value
Memory Module Properties
Module Name 32MX64G-133
Serial Number 001021C3h
Module Size 256 MB (2 rows, 4 banks)
Module Type Unbuffered
Memory Type SDRAM
Memory Speed PC133 (133 MHz)
Module Width 64 bit
Module Voltage LVTTL
Error Detection Method None
Refresh Rate Normal (15.625 us), Self-Refresh

Memory Timings
@ 133 MHz 3.0-3-3-6 (CL-RCD-RP-RAS)
@ 100 MHz 2.0-2-2-5 (CL-RCD-RP-RAS)

Memory Module Features
Early RAS# Precharge Not Supported
Auto-Precharge Supported
Precharge All Supported
Write1/Read Burst Supported
Buffered Address/Control Inputs Not Supported
Registered Address/Control Inputs Not Supported
On-Card PLL (Clock) Not Supported
Buffered DQMB Inputs Not Supported
Registered DQMB Inputs Not Supported
Differential Clock Input Not Supported
Redundant Row Address Not Supported


Dimm 2

Field Value
Memory Module Properties
Module Name Hyundai
Serial Number None
Module Size 256 MB (1 rows, 4 banks)
Module Type Unbuffered
Memory Type SDRAM
Memory Speed PC100 (100 MHz)
Module Width 64 bit
Module Voltage LVTTL
Error Detection Method None
Refresh Rate Reduced (7.8 us), Self-Refresh

Memory Timings
@ 100 MHz 3.0-2-2-5 (CL-RCD-RP-RAS)

Memory Module Features
Early RAS# Precharge Not Supported
Auto-Precharge Supported
Precharge All Supported
Write1/Read Burst Supported
Buffered Address/Control Inputs Not Supported
Registered Address/Control Inputs Not Supported
On-Card PLL (Clock) Not Supported
Buffered DQMB Inputs Not Supported
Registered DQMB Inputs Not Supported
Differential Clock Input Not Supported
Redundant Row Address Not Supported

Memory Module Manufacturer
Company Name Hynix Semiconductor Inc.
Product Information click here


Dimm 3

Field Value
Memory Module Properties
Module Name Kingston 32MX64PC133CL3168
Serial Number 042237B7h
Manufacture Date Week 28 / 2004
Module Size 256 MB (1 rows, 4 banks)
Module Type Unbuffered
Memory Type SDRAM
Memory Speed PC133 (133 MHz)
Module Width 64 bit
Module Voltage LVTTL
Error Detection Method None
Refresh Rate Reduced (7.8 us), Self-Refresh

Memory Timings
@ 133 MHz 3.0-3-3-6 (CL-RCD-RP-RAS)
@ 100 MHz 2.0-2-2-5 (CL-RCD-RP-RAS)

Memory Module Features
Early RAS# Precharge Not Supported
Auto-Precharge Supported
Precharge All Supported
Write1/Read Burst Supported
Buffered Address/Control Inputs Not Supported
Registered Address/Control Inputs Not Supported
On-Card PLL (Clock) Not Supported
Buffered DQMB Inputs Not Supported
Registered DQMB Inputs Not Supported
Differential Clock Input Not Supported
Redundant Row Address Not Supported

Memory Module Manufacturer
Company Name Kingston Technology Company, Inc.
Product Information click here


Dimm 4

Field Value
Memory Module Properties
Module Name Micron Tech.
Serial Number None
Module Size 256 MB (2 rows, 4 banks)
Module Type Unbuffered
Memory Type SDRAM
Memory Speed PC133 (133 MHz)
Module Width 64 bit
Module Voltage LVTTL
Error Detection Method None
Refresh Rate Normal (15.625 us), Self-Refresh

Memory Timings
@ 133 MHz 3.0-3-3-6 (CL-RCD-RP-RAS)

Memory Module Features
Early RAS# Precharge Not Supported
Auto-Precharge Supported
Precharge All Supported
Write1/Read Burst Supported
Buffered Address/Control Inputs Not Supported
Registered Address/Control Inputs Not Supported
On-Card PLL (Clock) Not Supported
Buffered DQMB Inputs Not Supported
Registered DQMB Inputs Not Supported
Differential Clock Input Not Supported
Redundant Row Address Not Supported

Memory Module Manufacturer
Company Name Micron Technology, Inc.
Product Information
click here

  georgemac © 09:23 23 Feb 2005

the modules all seem to be different types which may not be helping but first you have to check what your motherboard supports

post your make and rev of board from kinston so we can check the motherboard specs

it is never a good idea to mix memory module types, although it may work, more often than not problems can occur.

  Never again 09:27 23 Feb 2005

I have a tiger tyan 100 motherboard.

The upgrade was done on the cheap on an internet auction site, so it was a case of beggars can't always be choosers as I only paid between £10 and £18 for each stick and that stretched my budget.

  Never again 09:28 23 Feb 2005

sorry - got to go - Be back later

  TomJerry 09:30 23 Feb 2005

if it is, then other memory are used by on-board graphics

  georgemac © 10:33 23 Feb 2005

what os are you using, w98, 98se, me or xp? or nt? this is a dual processor board?

click here this review says it can handle four dimm's no problem, and it seems to be working with PC133, you have 3 x PC133 and 1 x PC100 according to above.

win98 and win me have problems with over 512 mbytes of ram - there used to be an app you could load to overcome this but I can't remember what it is called

the only other thing I can think is it does not like the mix of pc100 and pc133 - remove the pc100 and see if the same amount of memory is reported, if it is put the pc100 back in and remove a pc133 see if it goes down to 512 mb

or try the pc100 in slot 4 - fastest memory is supoosed to go in slot 0, then 1 then 2 then 3

all memory must be 3.3 volts which it looks like it is, no onboard graphics so not that, it has an agp slot

  dan11 10:52 23 Feb 2005

It's XP + sp2, with a duel slot 1 cpu's ( 1 x 800Mhz + 1 x 700Mhz). From a previous post from Never again.

  Never again 14:34 23 Feb 2005

Thanks dan11

I had to leave work for a while.

You are spot on with the information.

Do you think that it is just windows misreporting, although I think it says the same in the power on self test.

I won't be able to check with my pc until tomorrow, but it took me long enough to get the memory in the slots as there is not a lot of room for my stubby fingers so i dont relish the thought of memory swapping between the dimm slots

  Never again 14:39 23 Feb 2005

it appears as if 3x256=768 is being recognised, and the obvious candidate for the problem would be the pc100 stick.

it looks as if georgemac may be right, but this obviously needs testing - oh joy!

either that or 2 sticks are only reporting 128?

Does the rows and banks thing have a bearing on the memory compatability, or what dimm slot they are in?

  georgemac © 16:38 23 Feb 2005

dimm slot makes no difference other than the fastest should be in slot 0

rows and banks do make a difference sometimes

memory can be very fussy - sometimes it is not - there is no real rhyme or reason to this

I tend to have identical memory chips in my pc's - this is the best way to avoid problems

if from different manufacturers it is best to keep speeds and specs the same if possible

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