Single socket only, no dual socket. That's a good price!
Yea but who needs dual sockets with 32c?Single socket only, no dual socket. That's a good price!
Pass. I've only had 50% success rate for Chinese CPUs. Though there really can't be fake CPUs, as they are far too complicated to replicate.Item location:
深圳, China
They can't really fake CPUs. It's just far too complicated.So fake CPUs?
I picked up a ROMED8-2T from Amazon warehouse on prime day for 300. Been looking for a CPU for some time.How would I test for abnormalities? I read somewhere these could be bin rejects as wellThey can't really fake CPUs. It's just far too complicated.
However, they can absolutely laser etch anything they want onto a locked CPU. They prey on people who buy a "good deal", and just don't test the components soon enough to get it returned under eBay policies. (I'm very guilty of this, and been burned a few times)
If you have the patience (will take quite some time to arrive), are prepared to easily return it as, "oh well", and already have a motherboard, then yeah go for it!
For me, the motherboards still cost a kidney, and I couldn't do anything with the expensive motherboard if the CPU didn't work as there's no way I could afford an Epic these days. Now, if I already had a motherboard just sitting around, I would try for it.
Just be sure to test all features. All 8 channels of ram functional, it shows up as the same model number under CPU-Z/cpuinfo, is not a locked CPU (e.g. it boots and you can get to BIOS).I picked up a ROMED8-2T from Amazon warehouse on prime day for 300. Been looking for a CPU for some time.How would I test for abnormalities? I read somewhere these could be bin rejects as well
Is it sufficient to see the CPU model in bios/system information or can that be faked?Just be sure to test all features. All 8 channels of ram functional, it shows up as the same model number under CPU-Z/cpuinfo, is not a locked CPU (e.g. it boots and you can get to BIOS).
Not seeing any $500 7601s. Unless you mean the Dell locked ones.Seems reasonable, 7601's float around on eBay from US vendors for somewhere around $500 so a 7551P for $376 is not too off-target. They are not very good CPUs though, Naples's primary goal was to demonstrate that AMD could deliver an enterprise CPU with decent performance on time, in large quantities. The internal layout is odd (it is a quad-socket server on a single package) and the turbo is very bad (Zen 1 was a little slower than Haswell and 3.0GHz is really low for a modern CPU).
Its an OK placeholder if you want to keep the board (which is a very nice board!) and have something to use in the meantime until Rome CPUs start showing up again, but that's only useful if you are building a system for virtualization. Naples is a *really bad* (basically unusable) workstation CPU, it has worse single core performance than a $100 Haswell and suffers from performance pathologies due to its layout.
Watch out on that board, once updated to newest firmware they don't play nice with naples / 7001 cpus.I picked up a ROMED8-2T from Amazon warehouse on prime day for 300. Been looking for a CPU for some time.How would I test for abnormalities? I read somewhere these could be bin rejects as well
For my virtualized workstation I went from a E5-2697 v3 Haswell to a EPYC 7371 Naples and that was a huge upgrade. The AMD chip is also faster than the E5-2699 v4 Broadwell I have in another machine. Did you mean to say Naples was a little slower than Skylake-SP? Zen also introduced a significant IPC uplift over Broadwell, so that 3.0 GHz chip is probably more of a 3.4+ GHz in Intel currency.Zen 1 was a little slower than Haswell and 3.0GHz is really low for a modern CPU.
oops, yeah I meant Skylake. The 7371 is arguably better than one of the 32c parts, it was a special frequency-optimized part, though the CCX layout is huge mess (4 cores per die).For my virtualized workstation I went from a E5-2697 v3 Haswell to a EPYC 7371 Naples and that was a huge upgrade. The AMD chip is also faster than the E5-2699 v4 Broadwell I have in another machine. Did you mean to say Naples was a little slower than Skylake-SP? Zen also introduced a significant IPC uplift over Broadwell, so that 3.0 GHz chip is probably more of a 3.4+ GHz in Intel currency.
But yeah, the CCX NUMA layout on Naples was a mess, and as you said Rome is still a pretty big upgrade over Naples.
For ML and Proxmox it will be fine, just mind the layout (different GPUs will wind up attached to different dies) and don't expect VMs the size of the host to perform well on everything. @FlorianZ has a decent suggestion, you might try finding a 7371 which is a frequency-optimized SKU that will give you full platform features.Not seeing any $500 7601s. Unless you mean the Dell locked ones.
Was thinking of upgrading my dual E5-2670 proxmox host so it's even before Hardwell. Figured the core count and speed is roughly similar. PCIe pass through is a must, is it an issue?
For a deep learning system it wouldn't be a problem as well right? The 7x full x16 bandwidth looks amazing on paper.
That's about a 50USD premium still though. Are these platforms accessible to international users?The price of 7551P on China second-hand trading platform is now no more than 2000RMB, and the price of 7401P is only 1200RMB, plus international postage, I think this is a reasonable price
7371 is a little out of budget unfortunately. Almost triple the price of the 7551p over here.oops, yeah I meant Skylake. The 7371 is arguably better than one of the 32c parts, it was a special frequency-optimized part, though the CCX layout is huge mess (4 cores per die).
I think in Haswell terms the frequencies are about even, Zen1 was a little slower than Skylake which was a little faster than Haswell.
For ML and Proxmox it will be fine, just mind the layout (different GPUs will wind up attached to different dies) and don't expect VMs the size of the host to perform well on everything. @FlorianZ has a decent suggestion, you might try finding a 7371 which is a frequency-optimized SKU that will give you full platform features.
Yes but you don't have 30-60 days return and PayPal protection. Sometimes the seller doesn't do international shipping and you will need to find a mail forwarder.That's about a 50USD premium still though. Are these platforms accessible to international users?
I guess eBay makes the most senseYes but you don't have 30-60 days return and PayPal protection. Sometimes the seller doesn't do international shipping and you will need to find a mail forwarder.