https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Wed, 22 Apr 2026 03:14:57 +0000 Sun, 20 Dec 2020 10:58:24 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=17492 https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ https://forum.asrock.com/forum_posts.asp?TID=17492&PID=82372&title=x370-ddr4-memory-dragging-its-feet#82372 Author: cx5
Subject: 17492
Posted: 20 Dec 2020 at 10:58am

Hi @Gronar, there's a new 3.8, try that ??? Good luck !!!]]> Sun, 20 Dec 2020 10:58:24 +0000 https://forum.asrock.com/forum_posts.asp?TID=17492&PID=82372&title=x370-ddr4-memory-dragging-its-feet#82372 https://forum.asrock.com/forum_posts.asp?TID=17492&PID=82371&title=x370-ddr4-memory-dragging-its-feet#82371 Author: Gronar
Subject: 17492
Posted: 20 Dec 2020 at 10:54am

Nope, don't have that in the BIOS I'm running. P3.61.]]> Sun, 20 Dec 2020 10:54:23 +0000 https://forum.asrock.com/forum_posts.asp?TID=17492&PID=82371&title=x370-ddr4-memory-dragging-its-feet#82371 https://forum.asrock.com/forum_posts.asp?TID=17492&PID=82370&title=x370-ddr4-memory-dragging-its-feet#82370 Author: cx5
Subject: 17492
Posted: 20 Dec 2020 at 10:36am

Please see picture from this post https://www.overclock.net/threads/asrock-x370-taichi-overclocking-thread.1627407/post-28697030

Picture credit from kitguru https://www.kitguru.net/components/motherboard/luke-hill/asrock-x570-taichi-motherboard-review/3/


]]> Sun, 20 Dec 2020 10:36:10 +0000 https://forum.asrock.com/forum_posts.asp?TID=17492&PID=82370&title=x370-ddr4-memory-dragging-its-feet#82370 https://forum.asrock.com/forum_posts.asp?TID=17492&PID=82367&title=x370-ddr4-memory-dragging-its-feet#82367 Author: Gronar
Subject: 17492
Posted: 20 Dec 2020 at 5:32am

Don't have that in my BIOS under tweaker.]]> Sun, 20 Dec 2020 05:32:32 +0000 https://forum.asrock.com/forum_posts.asp?TID=17492&PID=82367&title=x370-ddr4-memory-dragging-its-feet#82367 https://forum.asrock.com/forum_posts.asp?TID=17492&PID=82331&title=x370-ddr4-memory-dragging-its-feet#82331 Author: cx5
Subject: 17492
Posted: 18 Dec 2020 at 3:12pm

Hello @Gronar, thanks.

FCLK / Fabric Clock = Infinity Fabric Frequency and Divider.

on the OC Tweaker page, right under DRAM Frequency.
]]> Fri, 18 Dec 2020 15:12:40 +0000 https://forum.asrock.com/forum_posts.asp?TID=17492&PID=82331&title=x370-ddr4-memory-dragging-its-feet#82331 https://forum.asrock.com/forum_posts.asp?TID=17492&PID=82324&title=x370-ddr4-memory-dragging-its-feet#82324 Author: Gronar
Subject: 17492
Posted: 18 Dec 2020 at 11:57am

That's some good info cx5. Can you tell me where to look for FCLK settings on an X570 Taichi? Nothing looks obvious to me.]]> Fri, 18 Dec 2020 11:57:56 +0000 https://forum.asrock.com/forum_posts.asp?TID=17492&PID=82324&title=x370-ddr4-memory-dragging-its-feet#82324 https://forum.asrock.com/forum_posts.asp?TID=17492&PID=82269&title=x370-ddr4-memory-dragging-its-feet#82269 Author: cx5
Subject: 17492
Posted: 16 Dec 2020 at 10:53am

Hello @luminarycrush

Times have changed. Mainly because AMD uses ram differently to Intel, hence most of the XMP on market is mostly for Intel and crashes/can't boot on AMD, but in reality some Intel XMP also crashes on Intel, so what is the correct answer? The motherboard's memory vendor list is the correct answer. In short some rams work on some motherboard and not other motherboard. It's a longer story but I'd stop here.

I also do not overclock. I also just run ram at specified sold spec. But you could guess now my ram could not boot using XMP, so I have to use the new information as knowledge and 1usmus calculator and get a starting baseline parameters and input them all manually in order to boot but not windows stable, then slowly find out what other values need to be changed higher against the 1usmus calculator findings. It's not absolute.

Quick tips are: -
1) change the primary timing higher
2) always use even number, not odd numbers, i.e. CL 14, 16, 18 etc, because AMD don't like 15, 17, 19 on tCL or CL, other numbers can be EVEN or ODD.
3) actually item 2) is automatically raise if Geardown Mode in Turned On, hence don't turn off yet even web says performance better, for now you want stability first.
4) quick and clean shortcut reading https://www.corsair.com/corsairmedia/sys_master/productcontent/Ryzen3000_MemoryOverclockingGuide.pdf

after more than 3 years of diving into this ram calculator thing knowing from nothing, this document truly is the best, it lays the bare minimum and core critical parameters, no nonsense sure fire solution.

OK, good luck.
]]> Wed, 16 Dec 2020 10:53:31 +0000 https://forum.asrock.com/forum_posts.asp?TID=17492&PID=82269&title=x370-ddr4-memory-dragging-its-feet#82269 https://forum.asrock.com/forum_posts.asp?TID=17492&PID=82266&title=x370-ddr4-memory-dragging-its-feet#82266 Author: luminarycrush
Subject: 17492
Posted: 16 Dec 2020 at 6:10am

cx5 wrote: Hello @luminarycrush You'll need to read this = https://www.techpowerup.com/review/amd-ryzen-memory-tweaking-overclocking-guide/ and use = https://www.techpowerup.com/download/ryzen-dram-calculator/ and follow this = https://www.overclock.net/threads/new-dram-calculator-for-ryzen%E2%84%A2-1-7-3-overclocking-dram-on-am4-membench-0-8-dram-bench.1640919/page-517 Come back again after studying above and we can help you more accurately.

Thank you for your response. I'd like to ask what may be a dumb question - I didn't think I was trying to overclock the memory, I was just trying to "clock" it - set it to it's advertised performance. Is what you sent appropriate for non-overclock BIOS settings for memory? I haven't build a machine in awhile, but not so many years ago you'd just set the memory speed appropriately per manufacturer's specs.

I will read the information you sent regardless, but wanted to get my head straight first.

I don't run Windows (though I have a VM, not sure if that tool will work in it). I did manage to extract this from Linux tools, which appears to conflict what the memory advertises and is printed on the stickers:


---=== SPD EEPROM Information ===---
EEPROM CRC of bytes 0-125                        OK (0x242D)
# of bytes written to SDRAM EEPROM               384
Total number of bytes in EEPROM                  512
Fundamental Memory type                          DDR4 SDRAM
SPD Revision                                    1.1
Module Type                                      UDIMM
EEPROM CRC of bytes 128-253                      OK (0xA01C)

---=== Memory Characteristics ===---
Maximum module speed                             2132 MHz (PC4-17000)
Size                                             8192 MB
Banks x Rows x Columns x Bits                    16 x 16 x 10 x 64
SDRAM Device Width                               8 bits
Ranks                                           1
AA-RCD-RP-RAS (cycles)                           15-15-15-36
Supported CAS Latencies                          16T, 15T, 14T, 13T, 12T, 11T, 10T

---=== Timings at Standard Speeds ===---
AA-RCD-RP-RAS (cycles) as DDR4-1866              13-13-13-31
AA-RCD-RP-RAS (cycles) as DDR4-1600              11-11-11-27

---=== Timing Parameters ===---
Minimum Cycle Time (tCKmin)                      0.938 ns
Maximum Cycle Time (tCKmax)                      1.600 ns
Minimum CAS Latency Time (tAA)                   13.750 ns
Minimum RAS to CAS Delay (tRCD)                  13.750 ns
Minimum Row Precharge Delay (tRP)               13.750 ns
Minimum Active to Precharge Delay (tRAS)        33.000 ns
Minimum Active to Auto-Refresh Delay (tRC)       46.750 ns
Minimum Recovery Delay (tRFC1)                   350.000 ns
Minimum Recovery Delay (tRFC2)                   260.000 ns
Minimum Recovery Delay (tRFC4)                   160.000 ns
Minimum Four Activate Window Delay (tFAW)        21.000 ns
Minimum Row Active to Row Active Delay (tRRD_S) 3.700 ns
Minimum Row Active to Row Active Delay (tRRD_L) 5.300 ns
Minimum CAS to CAS Delay (tCCD_L)               5.625 ns
Minimum Write Recovery Time (tWR)               15.000 ns
Minimum Write to Read Time (tWTR_S)              2.500 ns
Minimum Write to Read Time (tWTR_L)              7.500 ns

---=== Other Information ===---
Package Type                                    Monolithic
Maximum Activate Count                           Unlimited
Post Package Repair                             One row per bank group
Soft PPR                                         Supported
Module Nominal Voltage                           1.2 V
Thermal Sensor                                   No

---=== Physical Characteristics ===---
Module Height                                    32 mm
Module Thickness                                 2 mm front, 2 mm back
Module Reference Card                            A revision 1

---=== Manufacturer Data ===---
Module Manufacturer                             G Skill Intl
DRAM Manufacturer                                SK Hynix (former Hyundai Electronics)
Part Number                                      F4-3200C16-8GTZR


Number of SDRAM DIMMs detected and decoded: 4
]]> Wed, 16 Dec 2020 06:10:10 +0000 https://forum.asrock.com/forum_posts.asp?TID=17492&PID=82266&title=x370-ddr4-memory-dragging-its-feet#82266 https://forum.asrock.com/forum_posts.asp?TID=17492&PID=82240&title=x370-ddr4-memory-dragging-its-feet#82240 Author: cx5
Subject: 17492
Posted: 15 Dec 2020 at 3:49pm

Hello @luminarycrush

You'll need to read this = https://www.techpowerup.com/review/amd-ryzen-memory-tweaking-overclocking-guide/

and use = https://www.techpowerup.com/download/ryzen-dram-calculator/

and follow this = https://www.overclock.net/threads/new-dram-calculator-for-ryzen%E2%84%A2-1-7-3-overclocking-dram-on-am4-membench-0-8-dram-bench.1640919/page-517

Come back again after studying above and we can help you more accurately. ]]> Tue, 15 Dec 2020 15:49:22 +0000 https://forum.asrock.com/forum_posts.asp?TID=17492&PID=82240&title=x370-ddr4-memory-dragging-its-feet#82240 https://forum.asrock.com/forum_posts.asp?TID=17492&PID=82234&title=x370-ddr4-memory-dragging-its-feet#82234 Author: luminarycrush
Subject: 17492
Posted: 15 Dec 2020 at 9:48am

I upgraded to BIOS 5.6, no change.

I'm stumped. I have no idea why the BIOS chooses the slowest possible speed for my DDR4 memory.]]> Tue, 15 Dec 2020 09:48:12 +0000 https://forum.asrock.com/forum_posts.asp?TID=17492&PID=82234&title=x370-ddr4-memory-dragging-its-feet#82234