One sided ram and two sided ram

[Spooky Man G]

and...
64M x 64 -Bit. (64/8 =8, 64x8= 512)

[jayclark]

I know now that if you motherbaord only supports double sided ram you can use single sided but only use half the ram. But what if a motherboard only supports single sided can you use double sided at all?

[Nix]

Thanks for the explanations S.M.G. and 104456.

[jayclark]

10, that link you gave me improved the read and write time considerably. Well the single sided ram is on another pc of mine that I am about to trash. I ran Everest on both pc and looked at the info about the ram and it is exactly the same.

Module Size 128 MB (2 rows, 4 banks) except with the ram that is single sided it states 1 rows, 8 banks and that one is 256.
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
Highest CAS Latency 3.0 (7.5 ns @ 133 MHz)
2nd Highest CAS Latency 2.0 (10.0 ns @ 100 MHz)

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

Also does Everest report system info worng often? Because it claims that my system can only take 256 megs of ram in each slot and I have 4 slots. Where as I have 3 and can take 512 in each slot. I used to have 512 until the ram went bad.

[jayclark]

Ok after finding the web site equvalint of ram for dummies. I found out I have 16 bit sdram. And 16 bit sd ram is for system that max out a 512, 768 or 1024. The 256 is 32 bit and is for system that max out at 1.5 or above. That is why Everest says 256x3 which equals 768. My motherboard supports up to 1.5 in 32 bit ram. So I can use the 32 bit 256. But it also supports up to 768 in 16 bit. But I have yet to see if you can mix 16 bit and 32 bit ram. I have seen that if your mobo dosen't support 32 bit you will only see half. Well if my mobo supports 32 bit so I can see all of the 256 but I wonder if I can do that with my 16 bit 128 in there also? My manual says I can mix different types of ram. I wonder if they mean the same thing by that. I guess I will wait and see after I get the 256.

[greendesert]

Hey JC -

where did u find web site equvalent of ram for dummies ?
could u post the link please for me !

[jayclark]

http://home.cfl.rr.com/bjp/ This website is from 2002 but there is still good info and easy to under stand. Well can't say exactly easy but easier than most.