indeed, in normal memory, A AMD ryzen 3950 with a ddr4Samsung B-die kit memory can even stand itself against a ryzen 7000 series, with the ddr5 memory kit. Latency is indeed a killer here. And tuning, makes ddr5 very unstable. My ddr4 3200cl14 kit allows me to run it constantly at 3600cl13.
latency is related to memory cell speed itself and improving DRAM cell speed is hard, and it is not improved very much in the last 20 years, IIRC on the latest DDR5-4800, memory cell speed is 150MHz. and memory cell of PC2100 DDR-266 runs on 133MHz, SDR-800 EDO DIMM is 100MHz
You did miss something here, when you were talking about ECC there are 2 types of ECC memory, registered/buffered, and unbuffered/unregistered. What you have is the registered/buffered ECC memory. The difference is there is a chip on board that is what actually does the communication with the ram chips, instead of unbuffered where the cpu accesses the ram chips itself.
SDRAM is not the same as DDR1. You confused it a little bit. SDRAM was 1 generation before DDR1. SDRAM is PC100, PC133 and DDR1 is usually 333 or DDR400.
You are right,, I was a bit iffy about that one,, and looked it up,, and missed that it was not a DDR : classiccomputershop.eu/Webwinkel-Product-809154495/COMPAQ-306431-001-128MB-PC100-168-pin-DIMM-ECC-registered-SDRAM-memory-module.html
Ahh okay,, I picked a wrong blok : classiccomputershop.eu/Webwinkel-Product-809154495/COMPAQ-306431-001-128MB-PC100-168-pin-DIMM-ECC-registered-SDRAM-memory-module.html
Went to pack ddr4 with 32gb modules instead of building of new system. It is bloodly cheap now compared to 2018, performance is good, so I'm fine with ddr4
ram is so critical to having a stable and capable server - not to be overlooked - the more the better, can't wait for 1tb sticks to be commonplace - will be a while maybe with ddr6/7 but it will happen Samsung is expecting to finalize the DDR6 design by 2024. Two years on from the start of its initial start. Although it also doesn't expect to immediately go into production. Samsung says DDR6 is not expected to come into commercial usage until 2025. DDR6 is expected to reach 12,800 Mbit/s on JEDEC modules and 17,000 Mbit/s on overclocking. In a likely case, these will increase over time new memory designs seem to come out every 6-7 years so ddr6 should be in wide use by 2026/2027, ddr7 will be out 2032 and will be projected to be 5 times faster than ddr5 - ram throughput and speed doubles every couple of years on this projected pace - it will make a major difference in computing power and speed as capacities will also jump up considerably as well
My first ram blocks was 256KB,,, I borrow them to get started with my first PC,, I then bought my first block 1 MB (at just under $50) and had to wait a little until I could afford one more. 1TB of ram is not happiness,, it is just more RAM.
@@MyPlayHouse and we know more ram is more better - it is as close to happiness as you can get if you are into computers - once the price is finally down to earth and that will happen with economies of scale - just compare prices now to what you paid for then - same situation but that was then and this is now; alternatively it is about 10x cheaper than children #sweet child of mine ram
DDR5 is also a good performance improvement for the memory chip manufacturers, when the old modules cannot be reused 🤑 The big step up in MT/S gets "less impressive" when considering that each transfer is less data.
Is there anyway you could make a tutorial or video on showing how to replace RAM in a server unfortunately I took mine out of my server and made a rookie mistake and don't know how to get it back in because the server won't recognise the RAM it is a very rookie mistake but I'm learning from yourself as I have just started to tinker with servers and virtualisation. Love your videos. Hope you can help
All DDR transfers twice per cycle... thats the whole point of the name "double data rate" also if it was sinusoidal that would be an analog signal instead of digital (square wave)
Latency is the major benefit of RAM... bandwidth is niche... Latency ((frequency x CAS)/2) has pretty much been flat since DDR3.
Hi @IndusBe
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indeed, in normal memory, A AMD ryzen 3950 with a ddr4Samsung B-die kit memory can even stand itself against a ryzen 7000 series, with the ddr5 memory kit. Latency is indeed a killer here. And tuning, makes ddr5 very unstable.
My ddr4 3200cl14 kit allows me to run it constantly at 3600cl13.
latency is related to memory cell speed itself and improving DRAM cell speed is hard, and it is not improved very much in the last 20 years, IIRC on the latest DDR5-4800, memory cell speed is 150MHz. and memory cell of PC2100 DDR-266 runs on 133MHz, SDR-800 EDO DIMM is 100MHz
Make that divider in the center'ier each gen is not a very smart move, little thing, but annoying to think twice which side to use
Hi @rendermanpro
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If the EU can legally force Apple to switch to USB-C. Why can’t we force manufacturers to make ecc a legal standard?
Well with DDR5,, they all have a little :-)
You did miss something here, when you were talking about ECC there are 2 types of ECC memory, registered/buffered, and unbuffered/unregistered. What you have is the registered/buffered ECC memory. The difference is there is a chip on board that is what actually does the communication with the ram chips, instead of unbuffered where the cpu accesses the ram chips itself.
Maybe,, but Server RAM (real servers) are registered/buffered. and I believe I have touched on that in a older video :-)
9:50 On DDR3 Sandy Brige EP had quad socket 8 core CPUs for sure!
Hi @kwinzman
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SDRAM is not the same as DDR1. You confused it a little bit. SDRAM was 1 generation before DDR1. SDRAM is PC100, PC133 and DDR1 is usually 333 or DDR400.
You are right,, I was a bit iffy about that one,, and looked it up,, and missed that it was not a DDR : classiccomputershop.eu/Webwinkel-Product-809154495/COMPAQ-306431-001-128MB-PC100-168-pin-DIMM-ECC-registered-SDRAM-memory-module.html
14:37 this graph shows Gigabits per die. Divide by 8 and you get 1GiB max for DDR4 and 2GiB for DDR5
Hi @Mr.Leeroy
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SDRAM / DDR2 / DDR3 / DDR4 / DDR5 - you left out DDR(1) - en.wikipedia.org/wiki/DDR_SDRAM#/media/File:Desktop_DDR_Memory_Comparison.svg
I kinda think it's maybe a mistake/lost memory:P..... I noticed that too, sd came before ddr1 and is not the same thing
They are all synchronous (SDRAM) architecture. The top is Single Data Rate (PC-66/100/133)
Ahh okay,, I picked a wrong blok : classiccomputershop.eu/Webwinkel-Product-809154495/COMPAQ-306431-001-128MB-PC100-168-pin-DIMM-ECC-registered-SDRAM-memory-module.html
With the voltage regulators on the DIMM for DDR5. Cooling of the RAM is going to be even more important than in the past.
Or not to have a lot of 1.1volt capacity,, if not needed. It is a big saving if only two blocks are ever installed.
You must be trolling us, Morton. JEDEC is the standards body that sets the specs for effectively everything that is chip based, and made in a 'fab.
I thought it would be okay to borrow that :-) But they have a logo and all so they could get pissed.
@@MyPlayHouse They probably don’t care too much. A million plus channel may be different.
Rank interleaving (serving disparate cores simultaneously) has been around since at least ddr3
So maybe they are dobeling that :-/ ?
Went to pack ddr4 with 32gb modules instead of building of new system. It is bloodly cheap now compared to 2018, performance is good, so I'm fine with ddr4
Hi @rendermanpro
Thank You very much! glad you liked the video :-)
Thank you for watching! :-)
ram is so critical to having a stable and capable server - not to be overlooked - the more the better, can't wait for 1tb sticks to be commonplace - will be a while maybe with ddr6/7 but it will happen
Samsung is expecting to finalize the DDR6 design by 2024. Two years on from the start of its initial start. Although it also doesn't expect to immediately go into production. Samsung says DDR6 is not expected to come into commercial usage until 2025.
DDR6 is expected to reach 12,800 Mbit/s on JEDEC modules and 17,000 Mbit/s on overclocking. In a likely case, these will increase over time
new memory designs seem to come out every 6-7 years so ddr6 should be in wide use by 2026/2027, ddr7 will be out 2032 and will be projected to be 5 times faster than ddr5 - ram throughput and speed doubles every couple of years on this projected pace - it will make a major difference in computing power and speed as capacities will also jump up considerably as well
My first ram blocks was 256KB,,, I borrow them to get started with my first PC,, I then bought my first block 1 MB (at just under $50) and had to wait a little until I could afford one more.
1TB of ram is not happiness,, it is just more RAM.
@@MyPlayHouse and we know more ram is more better - it is as close to happiness as you can get if you are into computers - once the price is finally down to earth and that will happen with economies of scale - just compare prices now to what you paid for then - same situation but that was then and this is now; alternatively it is about 10x cheaper than children #sweet child of mine ram
DDR5 is also a good performance improvement for the memory chip manufacturers, when the old modules cannot be reused 🤑
The big step up in MT/S gets "less impressive" when considering that each transfer is less data.
Would be nice to be able to reuse old ram,,, but it is probably not worth it.
Is there anyway you could make a tutorial or video on showing how to replace RAM in a server unfortunately I took mine out of my server and made a rookie mistake and don't know how to get it back in because the server won't recognise the RAM it is a very rookie mistake but I'm learning from yourself as I have just started to tinker with servers and virtualisation. Love your videos. Hope you can help
I could,, but I have done that so many times on many different servers.
Seems like personal computers are getting more and more error correcting like in the PCIE6.0 and 7.0 spec. And with the coming CUDIMM DDR5 memory.
More and more correcting is needed as everything becomes so small!!
17:16 it's not milions of transfers, it's Mega Transfers, come on Morten
Yarh,, okay Mega transfers,, I will give you that one!
Ahh yes. With server stuff you want to be stable, and not "bleeding edge". Leading edge can sometimes can you in to trouble.
Yes,, your production should not be beta-testing.
My brain has even older ram - DUM1 🫣
Modern Ram is refreshed every 42 millisecond. DUM1 ram uses something called postages notes to to refresh :-)
All DDR transfers twice per cycle... thats the whole point of the name "double data rate" also if it was sinusoidal that would be an analog signal instead of digital (square wave)
You right. But: We’re both old enough to remember crystal generated clock signals, “there was a time…”
Okay,,, It was mostly to explain MT/s
New sockets have over 1GB of cache... eventually DIMM slots will become obsolete or niche as cache and PCIe are replacing them
I think that is still a bit out..
Now you can even open multiple Chrome tabs on it... might be...
it can do a bit more than that :-)
@@MyPlayHouse for many more it can for sure, like rendering massive datasets, but not for Chrome tabs 🤣
the first one is sdram
Hi @stephenroberts643
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i remember sdram in the time i was learning how to build and setup computers that was many years ago and im still learning
Nice vid - but gotta say: if you paid 55k DKK for that stick, you got scammed.
I did not,, but that was the listing prices.
👍👍
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: )
Hi @Ole-Morten
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