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How much memory can I allocate to Ram Disk?

Posted: Wed Oct 18, 2006 3:14 pm
by Eric
For systems with relatively small amounts of physical memory, up to 256 MB, the amount of available memory may be in the order of 30 to 50 percent or less. For medium sized systems, 320 MB to 2 GB, 60 to 70 percent of the physical memory may be available. On larger systems, above 2 GB, 80 to 90 percent or more of physical memory may be available for the product.

Each version of Windows (2000 Professional, Server, Advanced Server, Datacenter Server, XP, Server 2003, Web, Standard, Enterprise and Datacenter) limits the amount of physical memory recognized by the operation system. For example, Windows XP Professional 32-bit running on a machine with 8 GB of RAM will recognize only up to 4 GB. The remainder cannot be accessed.

The maximum amount of available physical memory at any moment cannot be predetermined precisely since it changes even as a system is active. Attempting to allocate the absolute maximum amount may ‘starve’ the system of memory resources, actually reducing its performance, and, in extreme conditions, could lead to a system crash.

Installed RAM: 256 MB
Approximate amount of RAM available to SuperSpeed products: 100 MB

512 MB --> Approximate Available: 300 MB
1 GB --> Approximate Available: 640 MB
2 GB --> Approximate Available: 1.5 GB
4 GB --> Approximate Available: 3.2 GB

Ram Disk size

Posted: Thu Oct 19, 2006 3:37 am
by addressman1
I have a system with 1gig memory. After some playing to find to maximum size I was able to set up a 565 meg ramdisk. This is large enough to hold the DPV files. I havn't had any system crashes or noticed any speed problems.

Re: Ram Disk size

Posted: Thu Oct 19, 2006 8:05 am
by Eric
addressman1 wrote:I have a system with 1gig memory. After some playing to find to maximum size I was able to set up a 565 meg ramdisk. This is large enough to hold the DPV files. I havn't had any system crashes or noticed any speed problems.
I have a system here with two pieces of 512 MB RAM, and I wasn't able to go up to 565 or even near it, so apparently systems can vary quite a bit.

Somebody asked me yesterday if they could increase their RAM in their computer and where they should get the RAM, and I directed them to a site that Kristen knew about, which is http://www.4allmemory.com. It has a system check button on that page that tells you about your computer, what memory you have in it, if it's possible to increase the RAM on your computer, and it sells the type of RAM your specific computer needs. Pretty neat stuff.

(4allmemory.com isn't affiliated with AccuZIP in any way)