Asgard launches world's first DDR5-9600 DIMMs

These are part of a new generation of DDR5 modules that add a clock driver to the module itself, rather than relying entirely on the clock signal coming all the way from the CPU's memory controller. That is expected to significantly change the game for DDR5 overclocking, and expectations based on the limitations of configurations lacking the clock drivers may not be accurate. I expect we'll see 6+ months of firmware tuning before we have a clear picture of what each platform is ultimately capable of, but early on the focus will be on Intel platforms.

Granite ridge can currently do 8000-8400 when overclocked at a 1:2 ratio of memory controller clock to memory clock, though with some work needed to get it working.

The 9600 may be possible with DIMMs using the clock driver even on granite ridge

Not an expert, but Zen 5 desktop feels like it is being held back by memory bandwidth. Several tests show there is no real benefit in >6000 DRAMs.

> It doesnt appear Zen5 can get anywhere close those speeds.

Looks like it can get to DDR5-8400:

> Finally, we have some absolutely killer RAM. The G.SKILL Trident Z5 RGB series is one of that vendor's top brands, and this is among the top models that it offers. Clocked at a scorching 8400 MT/s with a CAS latency of just 40 cycles, this is the fastest RAM we can reasonably recommend for Ryzen 9000. It comes in the form of a pair of 24GB modules, and using it with Zen 5 could be as easy as just flicking on that XMP switch.

* https://hothardware.com/news/zen5-ddr5-memory-guide

Does that count as "anywhere close"?

I assume the 285K will be able run these at their full 9600?

The motherboard QVLs aren't particularly useful, the higher tier kits can often just not work as they're currently more often than not limited by the CPU memory controller quality instead of purely motherboard or RAM ICs.

Did you try 6200/6000 for the kit? 6400 is up there for speeds that may not work on AM5 with synced controller and memory clocks without tuning it yourself, or working at all. Or is that 4 DIMMs

I had similar issue with my 3950x I had stability issues with 3600MT, so I optimized clicks instead (I loaded XMP profile and then changed clock to lower value before tightening clocks with memtest runs in between) What people often don't realize that dimm quality allows you to get lower absolute time before data is available for system. So when you lower clocks, you don't need to wait that many cycles for the data. In that case you might not get that much bandwidth that you would have originally, but you can get the same or similar latency also changing order of dimms on board can somehow alter how low you can get (I have 4 dimms and swapping 2 on the same channel improved significantly clocks that I was able to achieve - no idea why)

> PSA: motherboards these days have a RAM compatibility list on their product page, check it before overspending on RAM.

That's a valuable PSA, but FYI it's been that way since the 80s. I've been bitten by compatibility issues at least once a decade since the 90s myself, and the answer from forums or support is always "did you check the compatibility table tho?".

Make sure you're on the latest BIOS as many improvements have been made since early AM5.

Anecdata: I just bought a used AM5 mobo and threw in this memory kit CMK64GX5M2B6400C32; hitting 6400 was as simple as turning on XMP and that's it.

More than the specific list of which RAM is compatible check the table of how many slots/GB is supported at which speed. 1x 8 GB DIMM is a lot easier to drive than 4x 48 for example. Also keep in mind a lot of it depends more on the CPU than the motherboard itself, though both play a part, and the QVL should be a "safe bet". Particularly if you're willing to throw a bit of extra voltage at the RAM.

CUDIMs should help a bit with those scaling tables due to having the clock redrivers, but we'll have to see to be certain how much.

I haven't done this for a while, but every time I come back around the new specs with even basic hardware blow the doors off my old rig.

Your issue is more with AMD CPUs having poor quality memory controllers; not the motherboard.

I'm only aware of the differences with manual timings but if you're not running the bottom of the (1 DIMM per channel) barell frequencies like 5200-5600 differences from going higher should be minimal. Not that many things actually scale with bandwidth so the higher frequencies are mostly helping because ther'll be shorter delays between operations where the registers for the timings bottom out at a higher number.

AMD also needs to change the sync of memory controller clock to memory clock to 1:2 instead of 1:1 above ~6000-6400 so as some anecdata 7800 performed roughly the same as 6000

Also, the vendors announcing these things so far are ones I've literally never heard of before. I'd still be a bit skeptical, but I think it would actually mean something if Kingston, G.Skill, Corsair, or Teamgroup announced this product. As it stands, I have no reason to think that I'll ever be able to actually buy this product.

> flashy but useless heat spreaders

The funny thing about heat spreaders on SDRAM is that they originated as a skeuomorph of RDRAM modules from the early Pentium 4 days, but everyone's pretty much forgotten that by now, so the market is essentially flooded with "retro" memory for no obvious reason except "everybody else does it".

> Did you know Hynix or Samsung already binned these themselves and set them to a lower spec?

Hynix, Samsung, and Micron bin the chips for what speed they can operate at with a 1.1V supply. These enthusiast modules are using chips binned for the speed they can hit with 1.4V. The XMP/EXPO profiles don't come from Hynix, Samsung, or Micron.

Stability problems might very well come from incorrect voltages. Since XMP profiles do not contain settings for most voltages, they're set by the motherboard firmware, and those values are often too high. I use XMP/EXPO profiles as a starting point, they're almost always terrible by themselves.

Heck, If I look real hard I might even find some California based companies that don’t pull exclusively from ancient Californian lore.

Maybe something about hammers ? Or rainbow. They said they binned that korean chips, wonder how ? ;)

Anyway, we are better not buying pure american chips (they burns) and soon to be on terrorists linked list if we own one - x86 goes military ! I'm somewhat worry about them now - x86 means Windows everywhere ?

And that "AI PC", whatever it is, I already hate it...

I assumed it's to attach to the "as" naming prefix, asus, asrock, asmedia, etc.

This is happening a lot in many product categories as a way to market effectively for international audiences, without some of the mistakes Chinese firms have historically made. Borrowing from other cultures is easier. For example in audio, Hifiman is a Chinese audio company that previously used alphanumeric names for their headphones but now uses various Hindu or Sanskrit (?) words to name their headphones and give them more of a “theme”.

Marketing... These not-so-famous-yet Chinese firms have picked up what the West has been doing and are trying to cut out the middle-man. Essentially the West's MO has been to buy cheap no-name generic stuff from china, have them colored/branded/packaged, and then slap on all the necessary product packaging stuff on the packaging (including a "Name"). Essentially acting as a middle-man that doesn't actually produce the product, barely does any QA and just adds a thin veneer of this being an actual "company" that manufactures and sells this product. Sometimes they use a fancy term like "white labeling".

Here is such a company in the South African context that's super obvious about it: https://www.loot.co.za/search?cat=b&brandcode/leisurequip

Stargates and wormholes.

they are sg1 fans

It's a big step up from names like FDSOOJVX.

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