Motherboard only reads 384mb of RAM NEED HELP!

http://www.itox.com/pages/support/mbd/cb60bx/CB61B.PDF

Where do I find ecc parity enabled ram?

Oh I just found this in the article:

The system board is equipped with three 168-pin DIMM (Dual
In-line Memory Module) sockets that support x64/x72 PC
SDRAM DIMM, 3.3V. PC SDRAM (Synchronous Dynamic Random
Access Memory) uses a fast memory interface technology that
includes using the clock on the chip to synchronize with the CPU
clock so that the timing of the memory chips and the timing of the
CPU are synchronized. This saves time during transmission of data,
subsequently increasing system performance.
The system board also supports the ECC (Error Checking and
Correction) function. To use this function, you must install DIMM
that supports parity. That is, DIMM that typically has 9 memory
chips per side. This kind of module has 8 standard memory chips
and a parity chip. DIMM with no parity has 8 standard memory
chips only. Refer to chapter 1 (System Memory section) for
detailed specification of the memory supported by the system
board.

Briguy said:

It clearly says that it supports 768mb of ram only if it's registered ram. Is that the same as ecc? http://www.itox.com/pages/support/mbd/cb60bx/CB61B.PDF

Anyway the ram that I bought says it for a server. Can that be a problem?

Click to expand...

That will gum up the works! You want desktop not server memory.

Briguy said:

http://www.itox.com/pages/support/mbd/cb60bx/CB61B.PDF

Where do I find ecc parity enabled ram?

Oh I just found this in the article:

The system board is equipped with three 168-pin DIMM (Dual
In-line Memory Module) sockets that support x64/x72 PC
SDRAM DIMM, 3.3V. PC SDRAM (Synchronous Dynamic Random
Access Memory) uses a fast memory interface technology that
includes using the clock on the chip to synchronize with the CPU
clock so that the timing of the memory chips and the timing of the
CPU are synchronized. This saves time during transmission of data,
subsequently increasing system performance.
The system board also supports the ECC (Error Checking and
Correction) function. To use this function, you must install DIMM
that supports parity. That is, DIMM that typically has 9 memory
chips per side. This kind of module has 8 standard memory chips
and a parity chip. DIMM with no parity has 8 standard memory
chips only. Refer to chapter 1 (System Memory section) for
detailed specification of the memory supported by the system
board.

Click to expand...

Good find on the information there. That's prescisely what is needed to try and locate the specific memory best for the board there.

The closest match found is the 72pin 128mb simm not dimm seen at http://www.memory4less.com/m4l_itemdetail.asp?itemid=331209

That specifies parity error correction in the specs seen there. This type of memory is generally installed in pairs.

PC eye said:

The closest match found is the 72pin 128mb simm not dimm seen at http://www.memory4less.com/m4l_itemdetail.asp?itemid=331209

That specifies parity error correction in the specs seen there. This type of memory is generally installed in pairs.

Click to expand...

How many times do you have to be told. His board does not use 72 pin SIMMS!!!!!!

PC eye said:

That will gum up the works! You want desktop not server memory.



Good find on the information there. That's prescisely what is needed to try and locate the specific memory best for the board there.

The closest match found is the 72pin 128mb simm not dimm seen at http://www.memory4less.com/m4l_itemdetail.asp?itemid=331209

That specifies parity error correction in the specs seen there. This type of memory is generally installed in pairs.

Click to expand...

They are dimm not simm. Also I emailed kingston about it to see if they have any model numbers of ram that they have sold in the past so I could go look for them online. Not to mention but my ram stick say Synch on them. Would that be a bad thing?

Briguy said:

They are dimm not simm. Also I emailed kingston about it to see if they have any model numbers of ram that they have sold in the past so I could go look for them online. Not to mention but my ram stick say Synch on them. Would that be a bad thing?

Click to expand...

Is Synch the brand name? As far as the link as I said that was about the only memory seeing support for parity found. Once you get into dimms you then see non parity and non ECC becomng pretty much the standard.

See what you get out of Kingston anyways since that's one of the better brands to start with. As far as seeing 16x9 256mb dimms I ran into this. http://www.mr-vin.com/images/elah/agaref/16x8.php

PC eye said:

Is Synch the brand name? As far as the link as I said that was about the only memory seeing support for parity found. Once you get into dimms you then see non parity and non ECC becomng pretty much the standard.

See what you get out of Kingston anyways since that's one of the better brands to start with. As far as seeing 16x9 256mb dimms I ran into this. http://www.mr-vin.com/images/elah/agaref/16x8.php

Click to expand...

The ram that I bought was pc133 I thought I could get away with it since I'm running a 1ghz cpu on it which is higher then what manual says and it works great, the cpu that is. The ram is another story it only reads 384mb out of 3 x 256mb. What's weird is I bought high and low density ram that was pc100 from this website. They didn't even boot. But they were like some no name brand stuff. The pc133 sticks are Micron. I think the term SYNCH on the ram sticks means synchronized?

http://www.starmicro.net/detail.aspx?ID=280

http://www.starmicro.net/detail.aspx?ID=640

No idea what the 8 digit is for.

I'm going to wait on it I've sent e-mails to kingston and itox and dfi asking them what ram model numbers they could give me that would be compatible with the motherboard. I hate the weekends....

You can't get a lot done on weekends for sure! For any response from either plan on a good wait as well.

The "8" points at 8 ICs while the memory you are trying to get sees parity which means a 9th IC for that purpose alone. I remember running into parity and non parity memory so many years back referring to simms when buying for older systems then what you have there.

The last build seeing PC133/100 memory here was on an old Shuttle board also seeing a 768mb max on three slots. The next saw PC1600 DDR memory in a rather short period of time when going from build to build then.

I'm just wondering if the chipset on the old board there can handle the memory addressing to begin with. That was the problem seen with the older memory with 8 chips on one side requiring the 9th parity chip to compensate. As far as the Synch part that could be for the Sychronous in Sychronous DRAM there.

One site now being reconstructed may be some help later since they carry a lot of the older memory can be seen at http://www.n-synch.com/ If you don't get anywhere with the emails you may get somewhere once they are back up in finding some working memory.

I don't know why but Kingston recommended this ram: KVR100X64C2/256

I'll buy a stick and see if it will read 256mb on it. Currently it thinks each stick is 128mb. Cross your fingers!

As always, I am confused. If "8" is the number of chips, why does it say this module has 18 of them:

http://www.xppassport.net/256MB-PC100-32X728-CL3-ECC-18CHIP/M/B00006BAAL.htm

256MB PC100 32X72-8 CL3 ECC 18CHIP REG

so now they have banned him?

Yea!!! I solved it the Kingston ram worked. It reads 768mb now! Funny thing is that it's not ecc memory. So that's weird. But I won't complain about that.

Thanks guys for the help!

Merry Christmas!