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RAM onboard

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by parthiv_13

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I was working with INTERCARE security system as a part of my last job. Where I have used a Security system Board which was having onboard LINUX embeded as OS, onboard 500 mhz processor, onboard 128 MB RAM and etc onboad. Which worked very well instead of slot fixing things. Yes it do have slots for extra increament for RAM.

My question is why can't the motherboard manufacturer is not giving onboard RAM instead of having slot for them....? it works well instead of slot as per my experience.... They can give minimum starting with 256 MB as per today's need. Also couple of jumper setting which are not required on board they can remove it. Like they were not having Onboard LANcard before but now providing it onboard as for the same onboard soundcard.

So repeating the question why they are not providing onboard RAM ? yes of course with extra slot to make increament with more memmory as per need. Which can reduce cost to buy RAM externally to end user.

4 replies

by thechas

On a modern motherboard, the manufacture does not know what speed RAM you need.

The current crop of motherboards support a range of front side bus speeds. And, the fastest RAM will not always work with the slowest supported CPU.

Next, since modern RAM address fields are 1 or more GB wide, installing less than 1 GB of RAM would limit how much additional RAM you could install.

Add to that that many times different brands and batches of memory ICs do not work together, and you increase support costs.

Memory IC configurations and pin outs change from supplier to supplier and on a regular basis. Any cost savings from installing RAM on the motherboard would be lost in the reduced circuit board life.

As to configuration jumpers, you can't always fully disable a hardware feature in the BIOS settings.

I NEVER use on-board sound, and would want the option to fully disable on board LAN and modems.

Since motherboard and computer manufactures need to provide a minimal level of flexibility to attract the widest number of customers, a feature locked motherboard could actually cost more to build as fewer users would choose it.

Still, overall, as someone who has worked in circuit board manufacturing, the primary reason that you don't see on board RAM in PCs is that it does cost more to manufacture a motherboard with RAM than with separate RAM modules.

Chas

by parthiv_13

I was waiting for more answers. And was going to give away points to all of them. But no one gave answer excluding you. I wanted more information on this issue. If you can provide me.... Cz nowadays there is Dual core processing started with larger L2 cache like starting with 1 MB. If they can give memmory in Processor then why can't manufacturer afford on board with minimum 512 MB starting with...? Nothing is imposible in world. There can be some solution.... I am closing this question so you can forward me your answer on private message.

Thank you anyways for replying my question.

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