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Search: Posts Made By: scan80269
Forum: Information & Answers 2020-10-10, 16:31
Replies: 13
Views: 857
Posted By scan80269
Getting DDR4 memory to run robustly at 4000 can...

Getting DDR4 memory to run robustly at 4000 can be tricky. My guess is that your rig will stabilize once you disable XMP profile and run the memory at stock JEDEC 2133 speed, or back the speed down...
Forum: Information & Answers 2020-07-19, 15:53
Replies: 3
Views: 1,053
Posted By scan80269
OK, thanks! I found two more machines in the...

OK, thanks! I found two more machines in the same situation, so I submitted their results manually.
Forum: Information & Answers 2020-07-19, 15:36
Replies: 3
Views: 1,053
Posted By scan80269
Error at PRP completion

One of my machines encountered an error at the completion of a PRP:

[Sat Jul 18 18:26:07 2020 - ver 29.8]
Sending result to server: UID: scan80269/ThimK5, M97167209 is not prime.

PrimeNet...
Forum: Software 2020-06-21, 23:27
Replies: 30
Views: 4,270
Posted By scan80269
I recently did a clean (from scratch) install of...

I recently did a clean (from scratch) install of Windows 10 v2004 into one of my machines, and quickly discovered that Microsoft forces the use of a Microsoft account during the initial setup, and...
Forum: PrimeNet 2020-03-19, 04:28
Replies: 96
Views: 14,746
Posted By scan80269
I noticed one of my machines recently completed a...

I noticed one of my machines recently completed a PRP of an exponent below 90M that got expired from this user: 89773741. This is the only Cat 0 PRP assignment I'm aware of that any of my Prime95...
Forum: Information & Answers 2020-01-20, 17:53
Replies: 1
Views: 890
Posted By scan80269
Assignment category downgrade

I think I know the answers to my questions below, but would like some confirmation.

One of my machines has been running Cat 1 PRP assignments for a while, but a LL-DC result returned nearly 3...
Forum: Information & Answers 2020-01-10, 04:08
Replies: 6
Views: 1,013
Posted By scan80269
Done, and thanks again! Sorry for not...

Done, and thanks again!

Sorry for not realizing earlier that full residues for PRP should not be posted...
Forum: Information & Answers 2020-01-09, 05:32
Replies: 6
Views: 1,013
Posted By scan80269
I found another instance with a different system:...

I found another instance with a different system:

[Tue Jan 07 02:37:45 2020 - ver 29.8]
Sending interim residue 100000000 for M102440131
[Tue Jan 07 03:53:52 2020 - ver 29.8]
Sending result to...
Forum: Information & Answers 2020-01-08, 21:01
Replies: 6
Views: 1,013
Posted By scan80269
Manual submission is successful. Thanks,...

Manual submission is successful.

Thanks, George!
Forum: Information & Answers 2020-01-08, 05:48
Replies: 6
Views: 1,013
Posted By scan80269
Missing GHz-Day credit for a completed exponent

One of my Prime95 systems completed a PRP run for an exponent (actual value renamed to M90907xxx) earlier today but apparently it did not receive any computation credit for this exponent.

Checking...
Forum: Hardware 2019-12-26, 19:33
Replies: 46
Views: 7,168
Posted By scan80269
Z390 motherboards all support dual channel...

Z390 motherboards all support dual channel memory, not quad channel. Most ATX form factor motherboards feature 4 DIMM sockets, thus 2 DIMMs per memory channel.

Options for true quad channel...
Forum: Hardware 2019-12-16, 02:58
Replies: 14
Views: 3,753
Posted By scan80269
@simon389 for your 9800X results posted to the...

@simon389 for your 9800X results posted to the benchmark thread last year, was AVX-512 enabled for Prime95?
Forum: GpuOwl 2019-11-14, 02:45
Replies: 91
Views: 12,327
Posted By scan80269
There may be a setting in the motherboard BIOS...

There may be a setting in the motherboard BIOS setup that needs to be tweaked to get the Radeon card to be used as primary graphics adapter. The ability of the BIOS to auto-detect an installed...
Forum: Hardware 2019-11-05, 21:50
Replies: 14
Views: 2,360
Posted By scan80269
dmidecode may be reading the "standard" 2133...

dmidecode may be reading the "standard" 2133 timing set from the DDR4 SPD, instead of the XMP 2.0 2666 timing set. I suspect your memory is already running at 2666 so this may be just a reporting...
Forum: Hardware 2019-11-05, 20:57
Replies: 14
Views: 2,360
Posted By scan80269
@fivemack, what is the DDR4 memory configuration...

@fivemack, what is the DDR4 memory configuration for your i9-7940X system?
Forum: Hardware 2019-11-05, 20:53
Replies: 14
Views: 2,360
Posted By scan80269
On my i7-5960X (Haswell-E) with DDR4-2133 CL13...

On my i7-5960X (Haswell-E) with DDR4-2133 CL13 4x8GB 2R memory, Prime95 v29.8 build 6:

Timings for 5120K FFT length (8 cores, 1 worker): 3.80 ms. Throughput: 262.85 iter/sec.
Timings for 5120K...
Forum: Hardware 2019-11-03, 15:42
Replies: 14
Views: 2,360
Posted By scan80269
How much throughput (ms/iter) for Prime95 are you...

How much throughput (ms/iter) for Prime95 are you getting with your Xeon E5-1660 v2?

Since this Xeon is paired with DDR3 memory, and Prime95 at the wavefront (FFT=5120K) is memory bandwidth bound...
Forum: Hardware 2019-10-31, 16:54
Replies: 14
Views: 3,753
Posted By scan80269
There's a post in the perpetual benchmark thread...

There's a post in the perpetual benchmark thread for Core i7-9800X Skylake-X with DDR4-3600 memory showing approximately 2.7ms/iter for 5120K FFT.

Assuming i9-10900X with 3600 memory would be...
Forum: Hardware 2019-10-29, 15:51
Replies: 14
Views: 3,753
Posted By scan80269
Ryzen 9 3900X vs. Core i9-10900X

I'm curious to know which of these two CPUs can yield faster iteration times at the current wavefront (FFT 5120K):

1. AMD Ryzen 9 3900X - 12 core, 3.8GHz base, 64MB L3, dual channel DDR4-3200,...
Forum: Hardware 2019-09-24, 06:51
Replies: 49
Views: 6,050
Posted By scan80269
Recent generations of Intel desktop processors...

Recent generations of Intel desktop processors (e.g. Coffee Lake-R) should provide significant performance increases AND power reductions compared to your Intel 2nd gen Core (Sandy Bridge) and 3rd...
Forum: Hardware 2019-09-22, 01:36
Replies: 49
Views: 6,050
Posted By scan80269
Here are two of my systems running Prime95 with...

Here are two of my systems running Prime95 with AC power consumption measured using Watts-Up Pro meters:

System #1
- Intel NUC8i7BEH
- Intel Core i7-8559U CPU (28W TDP)
- 16GB DDR4-2133 memory...
Forum: Hardware 2019-09-10, 01:54
Replies: 49
Views: 6,050
Posted By scan80269
OK. I picked up several used Watts-Up Pro meters...

OK. I picked up several used Watts-Up Pro meters a couple of years ago, and can put them to good use measuring AC power of my systems running Prime95.

Since virtually all of my systems running...
Forum: Hardware 2019-09-08, 17:44
Replies: 49
Views: 6,050
Posted By scan80269
How about the Xeon W-3175X with 28 cores and 6...

How about the Xeon W-3175X with 28 cores and 6 channels of DDR4 memory and 255W TDP? I can't afford such a system (the motherboard alone is $1800US) so will need help from someone else to see how it...
Forum: Hardware 2019-09-08, 17:24
Replies: 49
Views: 6,050
Posted By scan80269
Your description is spot on. Intel CPU Turbo...

Your description is spot on.

Intel CPU Turbo Boost frequencies for all cores correspond to a power level way higher than TDP, especially when running AVX. The Turbo Boost duration for desktop...
Forum: Hardware 2019-09-08, 16:44
Replies: 49
Views: 6,050
Posted By scan80269
Yes, I'm fully aware of that. When Prime95...

Yes, I'm fully aware of that.

When Prime95 is started from idle, the i9-9900T engages Turbo Boost and consumes ~70W package power for several seconds, as measured using HWMonitor. The package...
Showing results 1 to 25 of 29

 
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