Errius wrote:

I think all 512 MB SDRAM DIMMs are registered/ECC? I don't think I've ever seen a normal module that size.

I concur, only ones I've got (or seen) are registered/ECC. Only servers would need or make use of multiple lanes of 512MB SDR then, until DDR came to the home. Could be the reason this query went unfulfilled.

3 or 4 sticks I got are regular non ECC/registered. Most have a bad chip on them unfortunately, they fail memtest in specific locations. I've kept the sticks around for possible revival one day when a donor happens to come by.

I had none eec pc133 512mb sdr sticks in the past. some erly socket 478 chip sets use sdr ram.

I have a couple of working unbuffered 512MB SDRAM DIMMs. AFAIK, Intel 815 boards would work with one of those .

Apollo pro works with them too.

Cleaned up thread.

Mr. horse wrote:

Apollo pro works with them too.

ApolloPro133A, you mean; the original ApolloPro (Via VT82C691) supports max 128Mb chips so no more than 256MB per unbuffered double-sided DIMM.

The VIA KM133 also supports 512mb SDRAM DIMMS, I used a computer with two 512mb sticks just this morning.

Back in the day (2000-2001) I had 3 different modules, all 512 MB PC 133, they weren't registered or ecc, they worked fine on my ABIT KT7E motherboard. Now I have *a lot* of 512 MB PC133 modules, they are all non ecc, non registered. I also have registered sdram, some are 128 mb, some 256 mb and some 1024. The irony is that I don't have 512 registered 😀

dionb wrote:

Mr. horse wrote:

Apollo pro works with them too.

ApolloPro133A, you mean; the original ApolloPro (Via VT82C691) supports max 128Mb chips so no more than 256MB per unbuffered double-sided DIMM.

Yeah. I was referring to the dual socket 370 chipset like thst used in the abip vp6.

My situation is the opposite: I don't have any unbuffered non-ECC 512 MB modules but do have a lot of registered ECC ones, which ironically are useless to me, since the machines that take them can also take 1 GB modules, which are so cheap nowadays there's no reason not to max your server out with them. The 512 MB sticks get left in the spares pile.

Banggood sells 512MB SDRAM they claim is non-ECC, non-registerred. They are labelled as ValueRAM with a serial number starting with KVR, which is what Kingston ValueRam usually has, but I believe it to be fake.