Personal computing discussed

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by synthtel2
Tue Oct 08, 2019 8:22 pm
Forum: The Back Porch
Topic: Jeff Kampman articles replaced by Renee?
Replies: 6
Views: 1056

Re: Jeff Kampman articles replaced by Renee?

It's really not alright and the biggest reason I don't visit the front page anymore.
by synthtel2
Tue Sep 24, 2019 5:33 pm
Forum: Processors
Topic: AMD EPYC 7002 - Rome wasn't built at 14 nm
Replies: 29
Views: 1978

Re: AMD EPYC 7002 - Rome wasn't built at 14 nm

http://yosefk.com/blog/amdahls-law-in-reverse-the-wimpy-core-advantage.html

Being able to wait on more things at once without (in theory) sacrificing anything on the Amdahl's law side is great, though I'm not convinced 2019's scheduling is good enough for 4-way SMT on the desktop.
by synthtel2
Wed Sep 18, 2019 10:01 pm
Forum: Motherboards, Chipsets, & RAM
Topic: RAM is stable with 3200 MHz XMP, fails to boot when I slightly tighten timings even with volt increase
Replies: 14
Views: 1027

Re: RAM is stable with 3200 MHz XMP, fails to boot when I slightly tighten timings even with volt increase

I haven't had great experiences with any memory test for OC confirmation; error rates bad enough to make the system unusable long-term make it through even when all tests say it's good. What I try to do now is have all tests pass something significantly more stressful than the 24/7 config. Any given...
by synthtel2
Tue Sep 10, 2019 4:56 pm
Forum: The Back Porch
Topic: Something's different...
Replies: 1461
Views: 56454

Re: Something's different...

Hate to break it to you, truly, but Zak is done. His last review was his last review. At this point I'm not expecting anyone to take that particular torch, which means TuRk/frame time testing won't be used, which means if anyone ever wants to use it again it will be massively outdated—and without B...
by synthtel2
Mon Sep 09, 2019 8:30 pm
Forum: The Back Porch
Topic: Something's different...
Replies: 1461
Views: 56454

Re: Something's different...

meerkt wrote:
I find it dishonest and disrespectful that Jeff's articles are attributed to Renee, instead of something like "TR Staff". And Usacomp2k3 is still credited as "administrator".

Very.
by synthtel2
Mon Sep 09, 2019 6:32 pm
Forum: The Back Porch
Topic: Something's different...
Replies: 1461
Views: 56454

Re: Something's different...

Honestly... I don't know if Renee or the other management reads this thread or not... but I say this as someone who's been reading this site for almost 20 years now... if that had been my first impression of TR it would have also been my last impression of TR. I understand that putting out that kin...
by synthtel2
Fri Sep 06, 2019 1:34 pm
Forum: General Software
Topic: My pc freezes randomly. / help ?
Replies: 55
Views: 3444

Re: My pc freezes randomly. / help ?

That's mostly still a fine computer, and there's no reason to scrap the whole thing. Likely stuff at this point includes: * As JBI said, the timings might be set wrong. * The CPU or mobo might be broken. * (Most likely IMO) the hangs aren't the RAM's fault directly, but the sketchy RAM broke somethi...
by synthtel2
Wed Aug 28, 2019 4:20 pm
Forum: General Software
Topic: My pc freezes randomly. / help ?
Replies: 55
Views: 3444

Re: My pc freezes randomly. / help ?

There's no "only" one --- one error is one too many. RAM tests should be squeaky clean, and there's an excellent chance flaky RAM is the root cause of all of this then (and probably more glitchiness). It sounds like you've only got one stick of RAM? That makes debugging this significantly ...
by synthtel2
Fri Aug 23, 2019 3:31 pm
Forum: System Builders Anonymous
Topic: Best RAM for my build
Replies: 3
Views: 741

Re: Best RAM for my build

At minimum something like this . Even absent the resolution and refresh rate, 3200C16 is dirt cheap in a build where a 2080 Ti is on the table, and is worth every penny. Past 3200C16 it gets less clear. With a 1440p144 monitor and a 2080 Ti, you could easily be very CPU-bound depending on the games ...
by synthtel2
Fri Aug 23, 2019 3:13 pm
Forum: General Software
Topic: My pc freezes randomly. / help ?
Replies: 55
Views: 3444

Re: My pc freezes randomly. / help ?

Running without D: is a solid next step. The SSD's performance looks reasonable to me, given it's a very low-end drive to start with.
by synthtel2
Thu Aug 22, 2019 5:28 pm
Forum: General Software
Topic: My pc freezes randomly. / help ?
Replies: 55
Views: 3444

Re: My pc freezes randomly. / help ?

What can i do to avoid sensitive stuff ? If you're not sure based on what's already here, it's probably not worth messing with for such a small problem. I have tried everything and nothing changed, still experimenting freezes... :c There's always more. ;) My Windows install is still on a very chees...
by synthtel2
Wed Aug 21, 2019 3:26 pm
Forum: Mobile Tech
Topic: Do/did you reapply thermal paste in laptops/notebooks?
Replies: 20
Views: 1915

Re: Do/did you reapply thermal paste in laptops/notebooks?

I only recall specifically redoing thermal paste on one, but I've disassembled/reassembled quite a few laptops to that level, and would absolutely do that (including on something still in warranty) if I think it'll make a noticeable difference. (Picked old laptop in the poll, the one I did that spec...
by synthtel2
Wed Aug 21, 2019 3:22 pm
Forum: General Software
Topic: My pc freezes randomly. / help ?
Replies: 55
Views: 3444

Re: My pc freezes randomly. / help ?

As soon as the freez occurs i have to save the trace so then i can analise it ? Yup. You'll probably want to send the resulting trace to us, analyzing them is much more involved than capturing them. Watch out for this bit and don't let us see it if it would contain anything sensitive, though: Be aw...
by synthtel2
Mon Aug 19, 2019 1:03 am
Forum: General Software
Topic: My pc freezes randomly. / help ?
Replies: 55
Views: 3444

Re: My pc freezes randomly. / help ?

If you can get an ETW trace showing the problem, that could narrow it down very quickly: https://randomascii.wordpress.com/2015/09/01/xperf-basics-recording-a-trace-the-ultimate-easy-way/
by synthtel2
Thu Aug 15, 2019 3:56 pm
Forum: Overclocking, Tweaking, & Cooling
Topic: Optimal Heatsink Fin Density?
Replies: 6
Views: 1256

Re: Optimal Heatsink Fin Density?

If you modify fin density and nothing else, you're picking an optimal amount of airflow (and less directly making a tradeoff between noise and peak cooling capacity). If the airflow to fin density ratio is too high, the whole of the fin surfaces see roughly the same low air temperature no matter whe...
by synthtel2
Wed Aug 14, 2019 3:12 pm
Forum: Graphics
Topic: Dynamic Clock Rates and Frame-time Consistency?
Replies: 7
Views: 1002

Re: Dynamic Clock Rates and Frame-time Consistency?

Frame-to-frame behavior is easy enough to test pretty much anywhere you can get a fixed scene. Dynamic clocks do add a couple fps of wobble on a framerate counter, but it isn't a difference I can feel. As far as lower-frequency swings, it'll depend on the game a lot. If naturally slow frames / scene...
by synthtel2
Fri Aug 02, 2019 1:57 pm
Forum: Processors
Topic: Ice Lake-U and -Y to arrive by Christmas
Replies: 8
Views: 1268

Re: Ice Lake-U and -Y to arrive by Christmas

They're fitting AVX-512 (albeit with only 1/clock FMA throughput), four cores, and 48 EUs in a 9W TDP, and the CPU arch doesn't seem to clock so well to start with. It's understandable that the worst-case clocks are pretty ugly, and I bet it'll be tough to get it to drop that far in practice, especi...
by synthtel2
Wed Jul 17, 2019 12:23 am
Forum: Graphics
Topic: AMD Navi / RDNA Topic
Replies: 107
Views: 8876

Re: AMD Navi / RDNA Topic

Thanks for the reminder, and I can confirm it's awesome on a 480. I care about latency a lot more than average, but this is the kind of killer feature that'd get me to pick my 480 over a 1070 Ti (or 5700XT over 2080 Ti, etc) on the basis of delivered performance alone. It does exactly what it says o...
by synthtel2
Fri Jul 12, 2019 2:57 am
Forum: Processors
Topic: Official: Ryzen 3700X and 3900X review comments
Replies: 49
Views: 2958

Re: Official: Ryzen 3700X and 3900X review comments

IDK if I've ever seen it explicitly stated in a benchmark context myself, but when I wrote bandwidth tests with a variety of access patterns it worked out that way, and that matches up with the spec (the same wires handle both directions and read/write/copy all get near the theoretical max bandwidth...
by synthtel2
Thu Jul 11, 2019 3:57 pm
Forum: Processors
Topic: Official: Ryzen 3700X and 3900X review comments
Replies: 49
Views: 2958

Re: Official: Ryzen 3700X and 3900X review comments

50 GB/s on a memory copy bandwidth test conventionally means 25 read and 25 write, not 50 and 50. Think max achievable bandwidth, not actual copy rate; copy is just the access pattern.
by synthtel2
Tue Jul 09, 2019 9:16 pm
Forum: The Back Porch
Topic: Something's different...
Replies: 1461
Views: 56454

Re: Something's different...

I'm really trying to stay hopeful about this, but it's getting tougher with almost every event or new piece of information (the big exception being the Zen 2 review, THANK YOU ZAK! ). The social media bots sound (I don't do social media, haven't seen them myself) like they're designed to be followed...
by synthtel2
Sun Jul 07, 2019 10:08 pm
Forum: Processors
Topic: Official: Ryzen 3700X and 3900X review comments
Replies: 49
Views: 2958

Re: Official: Ryzen 3700X and 3900X review comments

Thanks! That is disappointing though. :( Edit: The more I think about it, the more it makes sense. Also, for 6/8C parts tripping the downclock sounds like it'll basically never be a good thing, but for 12/16C parts there's relatively little harm done by it, and it gives the 16C parts the option of u...
by synthtel2
Sun Jul 07, 2019 8:01 pm
Forum: The Back Porch
Topic: Something's different...
Replies: 1461
Views: 56454

Re: Something's different... (new)

No worries from me about the technical issues, stuff happens, but I've got to say I too really hate the new look. Scaling to 90% and forcing colors to light-on-dark makes it tolerable, but that's clunky itself.
by synthtel2
Sun Jul 07, 2019 7:34 pm
Forum: Processors
Topic: Official: Ryzen 3700X and 3900X review comments
Replies: 49
Views: 2958

Re: Official: Ryzen 3700X and 3900X review comments

What's going on with the 3700X's memory bandwidth in the review? By any chance was the IF running at half speed? I thought it was supposed to be good for full speed up to 3600-ish, but if this is full, overall IF bandwidth looks cripplingly weak (and if this is half, it'd be great to know how high w...
by synthtel2
Wed Jun 26, 2019 4:15 pm
Forum: Motherboards, Chipsets, & RAM
Topic: DDR4 Clock speeds impact on performance
Replies: 6
Views: 1773

Re: DDR4 Clock speeds impact on performance

It's tough to generalize since every game will respond to it a bit differently, but in my experience, it's usually most helpful in the very worst-case scenarios for performance. 99% frametimes probably still don't go far enough to see a lot of it; think bigger stalls (99.99% frametimes?), or what ha...
by synthtel2
Sat Jun 15, 2019 11:43 am
Forum: General Hardware
Topic: AMD Input Delay Reduction Technology - Anti-Lag
Replies: 9
Views: 2494

Re: AMD Input Delay Reduction Technology - Anti-Lag

The buffer of work between CPU and GPU already has a fair bit of management done on it (more from AMD than Nvidia IME), and this sounds like it's optionally biasing that management more for latency where the usual setup prioritizes consistent frame delivery. AFAICT (without much investigation) the c...
by synthtel2
Thu May 30, 2019 3:22 pm
Forum: Processors
Topic: Brand new CPU build for Cyberpunk 2077 (Budget Important!)
Replies: 40
Views: 4218

Re: Brand new CPU build for Cyberpunk 2077 (Budget Important!)

What Chrispy_ said, wait. Every aspect of this will be better if you wait. That assumes there's even reason to upgrade in the first place - what's your current rig like? I can't think of any reason a Pentium would ever be a good choice for a gaming machine in 2019. Not only are games all but univers...
by synthtel2
Thu May 30, 2019 12:33 am
Forum: Processors
Topic: 16 COARZ.... Not announced by AMD
Replies: 104
Views: 7744

Re: 16 COARZ.... Not announced by AMD

Nobody publicly discloses IPC as-such because the hard numbers they could tout aren't necessarily relevant to much of anything. IIRC the hard maximums are 6 for *Lake and Zen and 7 for Apple's A12, but no mixed/sustained workload comes close to saturating that. Seeing real IPCs in a real workload is...
by synthtel2
Tue May 28, 2019 12:27 am
Forum: Windows
Topic: CPU power management on Windows 10
Replies: 6
Views: 1451

Re: CPU power management on Windows 10

That's a much bigger effect size than I ever saw. Are you sure the minimum processor state is the key variable? If you boost that on the balanced plan, do things start behaving right? If it is minimum processor state, can you test on a math-heavy workload versus an uncore/memory-heavy workload? AIDA...
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