X570 Crosshair VIII Hero: Relationship Between BIOS and Ryzen DRAM Calculator

[ationfictons]

I've never overclocked before and thought I'd start by overclocking the memory. I need some help mapping what the Ryzen DRAM Calculator (v 1.62):

https://www.techpowerup.com/download...am-calculator/

says I should use to the fields in my X570 Crosshair VIII Hero's BIOS.

Currently, everything related to overclocking in the BIOS is the default "Auto" except that I've set it to use the D.O.C.P. profile in the memory.

Into the DRAM Calculator, I've entered what I believe to be the correct values for my system:

• Processor: "Ryzen 2 gen" (which should be my Zen2 3700X)
• Memory Type: Samsung B-die (I'm pretty sure - RAMMon says Samsung, the web says b-die)
• Profile version: V1 (that's what people say to use)
• Memory Rank: 1 (ditto)
• Frequency (MT/s): 3200 (that's what the memory is rated for, so I used it as the safest)
• BCLK: 100 (unchanged in BIOS)
• DIMM Modules: 2
• Motherboard: X570

(My memory consists of two banks of G.Skill F4-3200C14D-16GTZ DDR4, so that's where much of the above comes from)

I hit the purple "R-XMP" button at the bottom and it grabbed the timing information from my memory to complete the left column. I then hit the green "Calculate SAFE" button to get safe overclocking values.



I've managed to map the center values on the Calculator's "Main" page (the t... timings) to values in my BIOS. But, I'm at a loss for about half of the values in the right column. Could someone point me in the right direction for finding the place to set the following Recommended values in my BIOS?

• DRAM Voltage: 1.35
• SOC VOltage: 1.025
• cLDO VDDG Voltage : 0.900
• cLDO VDDP Voltage: 0.900
• BGS: Disabled

Then, there's the Calculator's "Advanced" page where I can't find anything equivalent in my BIOS. Ditto for its "Power Supply System" page. I'd appreciate any help there, too. I've included screenshot of those pages since there's too much to type here.

[ationfictons]

I waded through my Crosshair VIII Hero's BIOS (version 1105) and found most of the locations that equate to what 1usmus' Ryzen DRAM Calculator gives. I'm including the information, below, in case it helps anyone else. Unfortunately, 1) I entered the data into OneNote and it's doing its darnedest to make sure I can't get the information out, and 2) I can't get this forum to put lines between the table elements. So, this might not be the prettiest thing to look at. Sorry.

Remember, these numbers are for my memory on my motherboard. So, the raw numbers probably won't help you. It's the final column describing where to put those numbers in the BIOS that are relevant here.

DRAM Calculator's Main Page

Field	SAFE t-values	BIOS Location: All under Extreme Tweaker > DRAM Timing Control
tCL	14	"DRAM CAS# Latency"
tRCDWR	14	Switch order
tRCDRD	14	Switch order
tRP	14	"DRAM RAS# PRE Time"
tRAS	30	"DRAM RAS# ACT Time"
tRC	44
tRRDS	4
tRRDL	6
tFAW	34
tWTRS	4
tWTRL	12
tWR	12
tRDRD SCL	4
tWRWR SCL	4
tRFC	307
tRFC (alt)	312
tCWL	14
tRTP	8
tRDWR	7
tWRRD	3
tWRWR SC	1
tWRWR SD	7
tWRWR DD	7
tRDRD SC	1
tRDRD SD	5
tRDRD DD	5
tCKE	8

Voltage Block (voltage range)	Min	Rec	Max	BIOS Location: All under Extreme Tweaker
DRAM Voltage	1.34	1.35	1.36
SOC Voltage	0.975	1.025	1.05	"CPU SOC Voltage"?
cLDO VDDG Voltage	0.9	0.9	0.95	Can't Find
cLDO VDDP Voltage	0.7	0.9	1.1

Misc Items	Value	BIOS Location
Power Down mode	Enabled	Extreme Tweaker > DRAM Timing Control
Gear Down mode	Enabled	Extreme Tweaker > DRAM Timing Control
Command Rate	1T	Extreme Tweaker > DRAM Timing Control
BGS	Disabled	BankGroupSwap at Advanced > AMD CBS > UMC Common Options > DRAM Memory Mapping
BGS alt	Enabled	BankGroupSwap at Advanced > AMD CBS > UMC Common Options > DRAM Memory Mapping
FCLK	1600	Extreme Tweaker

Termination Block Omega	Rec	Alt 1	Alt 2	BIOS Location: All under Extreme Tweaker > DRAM Timing Control
procODT	34.3	36.9	32
RTT_NOM	OFF	OFF	OFF
RTT_WR	OFF	OFF	OFF
RTT_PARK	RZQ/5(48)	RZQ/5(48)	RZQ/5(48)

CAD_BUS Block Omega	Rec	Alt 1	Alt 2	BIOS Location: All under Extreme Tweaker > DRAM Timing Control
CAD_BUS ClkDrv	24	24	24	"MemCadBusClkDrvStren"?
CAD_BUS AddrCmdDrv	20	20	24	"MemCadBusAddrCmdDrvStren"?
CAD_BUS CsOdtDrv	20	24	24	"MemCadBusCsOdtDrvStren"?
CAD_BUS CkeDrv	24	24	24	"MemCadBusCkeDrvStren"?

DRAM Calculator's Advanced Page

Main Voltages	Rec	Alt	BIOS Location: All under Extreme Tweaker > Tweaker's Paradise
VTT DDR Voltage min	0.673	0.678	No min/max field
VTT DDR Voltage max	0.6765	0.6815	No min/max field
Boot DRAM Voltage	1.350	1.360	Can't Find
Vref (CHA/CHB)	0.675	0.7425	DRAM Ctrl Ref Voltage on [ChA/ChB] at Extreme Tweaker > Tweaker’s Paradise

Debug Voltages	Rec	Alt 1	Alt 2	BIOS Location: All under Extreme Tweaker > Tweaker's Paradise
VDDP Voltage	900	855	815
VPP Voltage	2.5	2.48	2.525	"VPP_MEM Voltage"?
PLL Voltage	1.8	1.77	1.83	"PLL reference voltage" or "1.8V PLL Voltage" under Extreme Tweaker?

CAD_BUS Timings	Rec	Alt	BIOS Location: All under Extreme Tweaker > DRAM Timing Control
CAD_BUS AddrCmd	0	53	"MemAddrCmdSetup"?
CAD_BUS CsOdt	0	53	"MemCsOdtSetup"?
CAD_BUS Cke	0	53	"MemCkeSetup"?

Memory Interleaving + Tweaks	Value	BIOS Location
Memory Interleaving Size	2	Advanced > AMD CBS > DF Common Options > Memory Addressing
Memory Interleaving	Channel	Advanced > AMD CBS > DF Common Options > Memory Addressing
Channel Interleaving Hash	Enabled	Can't Find
DRAM R1-R4 Tune	0/63	Extreme Tweaker > Tweaker's Paradise
L1 Stream HW Prefetcher	Enabled	Advanced > AMD CBS > CPU Common Options > Prefetcher
L2 Stream HW Prefetcher	Enabled	Advanced > AMD CBS > CPU Common Options > Prefetcher
Super I/O Clock Skew	Disabled	Can't Find
Opcache	Enabled	Can't Find
Spread Spectrum	Enabled	"VRM Spread Spectrum" under Extreme Tweaker > External Digi+ Power Control or "SB Clock Spread Spectrum" in unknown location (found with F9)?
Memory Clear	Disabled	Advanced > AMD CBS > DF Common Options

PMU Training	Value	BIOS Location: All under Advanced > AMD CBS > DDR4 Common Options > Phy Configuration > PMU Training
DFE Read Training	Enabled
FFE Write Training	Enabled
PMU Pattern Bits Control	Manual
PMU Pattern Bits	A or 10
MR6VrefDQ Control	Auto
CPU Vref Training Seed Control	Auto

DRAM Calculator's Power Supply Systems Page

CPU/VDDSOC/DRAM	Best DRAM Stability	For CPU too	BIOS Location: All under Extreme Tweaker > External Digi+ Power Control
CPU Load-Line Calibration	Level 2/3	Level 3/4
CPU Current Capability	110-130%	130-140%
CPU VRM Switching Frequency	Manual	Same as for DRAM
Voltage Frequency	200/300	300/400
CPU Power Duty Control	T.Probe	Same as for DRAM
CPU Power Phase Control	Power Phase Response	Same as for DRAM
CPU Power Thermal Control	120	Same as for DRAM
Manual Adjustment	Regular	Ultra Fast
VDDSOC Load-Line Calibration	Level 2/3	Same as for DRAM
VDDSOC Current Capability	120.00%	Same as for DRAM
VDDSOC Switching Frequency	Manual	Same as for DRAM
Switching Frequency (Fixed) (KHz)	300/400	Same as for DRAM
Phase Control	Manual/Optimized	Same as for DRAM
DRAM Current Capability	100.00%	120.00%
DRAM Power Phase Control	Extreme	Same as for DRAM
DRAM Switching Frequency	Manual	Same as for DRAM
Switching Frequency (Fixed) (KHz)	300/400	Same as for DRAM

[RedSector73]

Did you get this working / do you need help.

I'm not sure from second post. Your ram is Samsung b-die.

[ationfictons]

Thanks for the offer. I got about 2/3 of the way through without any problems whatsoever. I was seeing about a 6% improvement in memory benchmarks, but they appeared mostly after simply entering those new timings at the top of the list. Adding the various voltages and non-t-value things didn't seem to be getting me anything more. So, I just stopped. For now, I've gone back to my regular old DOCP settings. I'm not sure if overclocking the memory is worth it at a system level (as opposed to a memory benchmark level), especially as I'm so clueless that I'm doing nothing but blindly following a recipe. I think I'll just spend a good amount of time trying to actually understand what's going with this before picking it up again. At least it should be easier to continue since I've found where most of the settings live in the BIOS.

But, again, thanks for the offer.

EDIT: oops. Maybe you can answer some of the questions I noted in my previous post:

• Is the Calculator's "SOC Voltage" the same as the BIOS' "CPU SOC Voltage" under Extreme Tweaker?
• Is the Calculator's "CAD_BUS ClkDrv" the BIOS' "MemCadBusClkDrvStren" under Extreme Tweaker > DRAM Timing Control?
• Is the Calculator's "CAD_BUS AddrCmdDrv" the BIOS' "MemCadBusAddrCmdDrvStren" under Extreme Tweaker > DRAM Timing Control?
• Is the Calculator's "CAD_BUS CsOdtDrv" the BIOS' "MemCadBusCsOdtDrvStren" under Extreme Tweaker > DRAM Timing Control?
• Is the Calculator's "CAD_BUS CkeDrv" the BIOS' "MemCadBusCkeDrvStren" under Extreme Tweaker > DRAM Timing Control?
• Is the Calculator's "CAD_BUS AddrCmd" the BIOS' "MemAddrCmdSetup" under Extreme Tweaker > DRAM Timing Control?
• Is the Calculator's "CAD_BUS CsOdt" the BIOS' "MemCsOdtSetup" under Extreme Tweaker > DRAM Timing Control?
• Is the Calculator's "CAD_BUS Cke" the BIOS' "MemCkeSetup" under Extreme Tweaker > DRAM Timing Control?
• Is the Calculator's "VPP Voltage" the BIOS' "VPP_MEM Voltage" under Extreme Tweaker > Tweaker's Paradise?
• Is the Calculator's "PLL Voltage" the BIOS' "PLL reference voltage" under Extreme Tweaker > Tweaker's Paradise or "1.8V PLL Voltage" under Extreme Tweaker?
• Is the Calculator's "Spread Spectrum" the BIOS' "VRM Spread Spectrum" under Extreme Tweaker > External Digi+ Power Control or "SB Clock Spread Spectrum" in some unknown location (found with F9)? If the latter, do you know where that actually is?

[RedSector73]

here, watch this



You appear to be over-thinking this and free performance with near to no risk, is always worth dialing in `imo.

[ationfictons]

Thanks. I'd already seen that video. I primarily worked with the material in 1usmus' AMD Ryzen Memory Tweaking & Overclocking Guide. Specifically the things and diagrams on page 5:

https://www.techpowerup.com/review/a...g-guide/5.html

But, as you noted, I'm probably over-thinking this. Doing his "Part 0" (basically the "t-values") seems to get the vast majority of the overclocking done. I used his TM5 0.12 program to stress test after each stage and never had an error. But, I was still worried that if I didn't go through all 5 "parts" and enter all the suggested values from the Calculator, I'd be leaving something hanging.

[RedSector73]

You could try dialing in 3600 safe settings for your ram and see if stable. You will see best performance gain for games at this point.

Since I can dial anything in from 3200 to 4133 using extreme 3200-3800 and DOCP thereafter, here is what I have learnt.

3200 is basic default speed.
3600 best for gaming & gaming benchmarks.
3800 best for applications & application benchmarks.

Hope you find this of help.

[ationfictons]

My plan was to get 3200 SAFE settings up and running and then try for 3600 SAFE. I'm pretty sure I should be good for at least 3600 and possibly up to 4110 SAFE (though I really doubt I'd ever go that high) since the Calculator Advanced Page shows a Memory Chip Quality of 93% and and Overclocking Potential of 4110 Mhz CL16. But, then, I merely used the big, purple "R-XMP" button to grab my memory settings instead of importing them through Thaiphoon Burner (that web page ( http://softnology.biz/index.html) has security issues, Firefox didn't like the supposed .zip file it downloaded, and the .zip file wouldn't even unzip).

[RedSector73]

RAM: @3800 (technically it's fractionally higher) is last point before you hit a infinity fabric memory divide, after that not really worth going higher



Try http://softnology.biz/files.html or just use another program to get the file.

[ationfictons]

I've found what I think are the locations for two other Calculator fields in the BIOS. I'd appreciate it if someone could confirm/deny those:

• Under the Misc table, "BGS" (and the Alternate) might be "BankGroupSwap" at Advanced > AMD CBS > UMC Common Options > DRAM Memory Mapping
• Under the Main Voltage table, "VRef (CHA/CHB)" might be "DRAM Ctrl Ref Voltage on" (CHA/CHB) at Extreme Tweaker > Tweaker’s Paradise