281–290 of 370 posts
I recently hit this testing pre-release kernels on my gaming PC, a 9900X3D: https://lore.kernel.org/lkml/20250623083408.jTiJiC6_@linutro...
A pile of older Skylake machines was never able to reproduce that bug one single time in 100+ hours of running the same workload. The fast new AMD chips would almost always hit it in a few hours.
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Now where can I get 64GB ECC UDIMM DDR5 modules so that my X870E board can have 256GB RAM? The largest I found were just 48GB ECC UDIMMs or 64GB non-ECC UDIMMs.
I don't think 64GB ECC UDIMM is commercially available yet. I use Geizhals to check for EU availability: https://geizhals.eu/?cat=ramddr3&xf=7500_DDR5~7501_DIMM~7761... In my experience, it's generally unwise to push the platform you're on to the outermost of its spec'd limits. At work, we bought several 5950X-based Zen3 workstations with 128GB of 3200MT/s ECC UDIMM, and two of these boxes will only ever POST when yo…
Happy 9950X user here. Super happy with it, everything is crazy fast. Not a gamer, according to internet and benchmarks the extra cost is only worth it for gaming workloads. I use Arch, btw ;)
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If you're on Linux, dmesg containing EDAC MC0: Giving out device to module amd64_edac is a pretty reliable indication that ECC is working. See my blog post about it (it was top of HN): https://sunshowers.io/posts/am5-ryzen-7000-ecc-ram/
My `dmesg` tells: EDAC MC0: Giving out device to module igen6_edac controller Intel_client_SoC MC#0: DEV 0000:00:00.0 (INTERRUPT) EDAC MC1: Giving out device to module igen6_edac controller Intel_client_SoC MC#1: DEV 0000:00:00.0 (INTERRUPT) but `dmidecode --type 16` says: Error Correction Type: None Error Information Handle: Not Provided
What does
find /sys/devices/system/edac/mc/mc0/csrow* -maxdepth 1 -type f -exec grep --color . {} +
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Excellent point. It's a shame and a travesty that data integrity is still mostly locked away inside servers, leaving most other computing devices effectively toys, the early prototype demo thing but then never finished and sold forever at inflated prices. I wish AMD would make ECC a properly advertised feature with clear motherboard support. At least DDR5 has some level of ECC.
I wish AMD wouldn't gate APU ECC support behind unobtainium "PRO" SKUs they only give out, seemingly, to your typical "business" OEMs and the rare Chinese miniPC company.
Both the 8700G and the 8700G PRO are readily available in the EU, and the PRO SKU is about 50% more expensive (EUR 120 in absolute numbers): https://geizhals.eu/?cmp=3096260&cmp=3096300&cmp=3200470&act...
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> […] so I am surprised he has done that and expected stability at 100C regardless of what Intel claim is okay. Intel specifies a max operating temperature of 105°C for the 285K [1]. Also modern CPUs aren't supposed to die when run with inadequate cooling, but instead clock down to stay within their thermal envelope. [1]: https://www.intel.com/content/www/us/en/products/sku/241060/...
I always wonder: how many sensors are registering that temp? Because CPUs can get much hotter in specific spots at specific pins no? Just because you're reading 100, doesn't mean there aren't spots that are way hotter. My understanding is that modern Intel CPUs have a temp sensor per core + one at package level, but which one is being reported?
I realize this has not much to do with CPU choice per se, but I'm still gonna leave this recommendation here for people who like to build PCs to get stuff done with :) Since I've been able to afford it and the market has had them available, I've been buying desktop systems with proper ECC support. I've been chasing flimsy but very annoying stability problems (some, of course, due to overclocking during my younger yea…
Isn't it mostly an ease of mind thing? I've never seen a ECC error on my home server which has plenty of memory in use and runs longer than my desktop. Maybe it's more common with higher clocked, near the limit, desktop PC's. Also: DDR5 has some false ecc marketing due to the memory standard having an error correction scheme build in. Don't fall for it.
Last winter I was helping someone put together a new gaming machine... it was so frustrating running into the fake ecc marketing for DDR5 that you mention. The motherboard situation for whether they support it or not, or whether a bios update added support or then removed it or added it back or not, was also really sad. And even worse IMO is that you can't actually max out 4 slots on the top tier mobos unless you're willing to accept a huge drop in RAM speed. Leads to ugly 48 GB sized sticks and limiting to two of them... In the end we didn't go with ECC for that someone, but I was pretty disappointed about it. I'm hoping the next gen will be better, for my own setup running ZFS and such I'm not going to give up ECC.
I feel like both Intel and AMD are not doing great in the desktop CPU stability department. I made a machine with a Ryzen 9900X a while back and it had the issue that it would freeze when idling. A few years before I had a 5950X that would regularly crash under load (luckily it was a prebuilt, so it was ultimately fixed). When you do not have a bunch of components ready to swap out it is also really hard to debug the…
It is cheaper and more stable. Performance difference doesn’t matter that much too
If OP's CPU cooler (Noctua NH-D15 G2) wasn't able to cool down his CPU below 100C, he must have been (intentionally or unintentionally with Asus multi core enhancement) overclocked his CPU. Or he didn't apply thermal paste properly or didn't remove the cooler plastic sticker? I have followed his blog for years and hold him in high respect so I am surprised he has done that and expected stability at 100C regardless of…
He did have the Fractal Define 7 Compact case, and the pictures[1] only show a single 140mm case fan. From personal experience the Fractal Define cases are great at sound reduction due to the thermal padding, but those pads also insulates well. Given the motherboard and RAM will also generate quite some heat, if the case fan profile was conservative (he does mention he likes low noise), could be the insides got quite…
That should of course be sound padding...
I realize this has not much to do with CPU choice per se, but I'm still gonna leave this recommendation here for people who like to build PCs to get stuff done with :) Since I've been able to afford it and the market has had them available, I've been buying desktop systems with proper ECC support. I've been chasing flimsy but very annoying stability problems (some, of course, due to overclocking during my younger yea…
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