Replies to post #28826 on Advanced Micro Devices Inc (AMD)

[Dan3]

Re: What kind of memory are you peddling?

The first 5 listings on pricewatch are all at $100 or less. If you want to do a price comparison, you can't just arbitrarily take one vendor's price and then proclaim that to be the cost of the part. There are 5 vendors on pricewatch that will sell you 1GB dimms for $100 or less.

[Dan3]

Re: The actual 32-bit hardware limitation is 3.75GB, because at least 256MB are needed for MMIO. Windows, the BIOS, and any other software can be enhanced to support this.

I've seen a number of 32-bit system video card / mobo combinations that won't recognize more than 3GB in a 4GB system, and have yet to see one recognize more than 3.5GB.

The big problem is usally the video card's bios, which will often map addresses (sometimes 512mb worth) starting at 3GB so as to stay out of the way of devices (like caching disk controllers) that go for addresses at 3.5 or (as in your example) 3.75GB.