buildzoid

ASrock B650 LiveMixer PCB Breakdown notes

Vcore
Renesas RAA229620 7phase
14x Renesas ISL99360 60A SPS
bulk output filter: 12x Nichicon FP12K 560uF TH poly
bulk input filter: 4x Apaq 5K 270uF TH poly
220nH inductors
500K...

Low effort Single rank Hynix 16Gb A/M-die timings for Ryzen 7000 at 6000Mbps

These timings should work on pretty much any hynix based DDR5 kit that is currently available(16Gb M-die and A-die at the time of writing). At DDR5-6000.

Voltages
VDDIO / MVDD / MVDDQ: 1.3...

RTX 4090 Zotac AMP Extreme AIRO PCB Breakdown notes

Dual BIOS

Input filtering bulk capacitance
32x 330uF TH poly

Vcore
Controller: UP9512 8 phase
MOSFETs: 24x AOZ5311NQI 55A DrMOS (3 per phase)
1V 500KHz 150nH (pow...

RTX 4080 Suprim X PCB breakdown notes

Fuses:
12A on PCI-e slot
20A for memory VRMs

Input filtering bulk capacitance
11x 180uF 16V TH aluminum polymer
22x 100uF 16V SMD tantalum polymer 

Vcore
Controller:...

Gigabyte RTX 4090 Master PCB Breakdown Notes

Dual BIOS

Input filtering bulk capacitance
20x 100uF Tant SMD
9x 270uF TH poly

Vcore
Controller: UP9512 8 phase
MOSFETs: 24x SiC653A 50A PS+OCP OTP HSSCP (3 per phase)
1V...

PCB Breakdown notes: ASUS Strix B650E-F Gaming Wifi

Vcore
ASUS ASP2208 6phase
Vishay SiC659 80A SPS 2x per phase
7x 6.3V 560uF TH poly 5K105C Apaq?
7x 270uF 16V TH poly 5K105C Apaq?
470nH inductors
1.2V 500KHz (180nH) (based on Si...

DDR5-6400 CL30 1T 2x16GB Hynix 16Gb M-die, Z790 Aorus Elite, i5 13600K

CPU: i5 13600K @5.5GHz P-cores, E-cores off
Cooling: fan on RAM, Asetek 240mm AIO
mobo: Gigabyte Z790 Aorus Elite
BIOS: F3f
RAM: 2x16GB Corsair Vengeance DDR5 ES 6200C36 (5H16M) single ...

DDR5-7200 2x16GB Hynix 16Gb A-die, Z790 Aorus Elite, i5 13600K

CPU: i5 13600K @5.5GHz P-cores, E-cores off
Cooling: fan on RAM, Asetek 240mm AIO
mobo: Gigabyte Z790 Aorus Elite
RAM: DDR5 Gigabyte Aorus 7200C34 ES Single rank SK Hynix 16Gb A-die
2022-11-19 18:38:19 +0000 UTC View Post

2x16GB Hynix M-die 6320 CL30 with a Ryzen 9 7950X on a Gigabyte X670E Aorus Master

EDIT: I set this up based on incorrect information provided to me by motherboard vendors. DO NOT USE THESE VOLTAGE SETTINGS

CPU: Ryzen 9 7950X
Cooling: fan on RAM, EVGA CLC280 on CPU
mo...

DDR5-7000 2x16GB Hynix 16Gb M-die, Z790 Aorus Master, i9 13900K

CPU: i9 13900K @5.6GHz P-cores, E-cores off
Cooling: fan on RAM, EVGA CLC280 on CPU
mobo: Gigabyte Z790 Aorus Master
RAM: DDR5 Corsair Vengeance ES 2x16GB Single rank SK Hynix 16Gb M-die 2022-10-31 07:48:44 +0000 UTC View Post

4x16GB Hynix 16Gb M-die, Z790 Aorus Master, i9 13900K

CPU: i9 13900K @5.6GHz P-cores, E-cores off
Cooling: fan on RAM, EVGA CLC280 on CPU
mobo: Gigabyte Z790 Aorus Master
RAM: DDR5 Corsair Vengeance ES 4x16GB Single rank SK Hynix 16Gb M-die 2022-10-26 00:54:02 +0000 UTC View Post

RTX 4090 Gamerock OC PCB breakdown notes

Dual BIOS

Input filtering bulk capacitance
21x 270uF TH poly

Vcore
Controller: UP9512
MOSFETs: 16x NCP302150 50A DrMOS (2 per phase)
1V 500KHz 150nH (power stages only?)
...

RTX 4090 Suprim X PCB breakdown notes

Fuses!
1x 12A fuse on PCI-e slot 12V
1x 20A fuse for Vmem's 12V supply

Input filtering bulk capacitance
13x 180uF 16V TH aluminum polymer
28x 100uF 16V SMD tantalum polymer

...

RTX 4090 Strix PCB breakdown notes

Input filtering bulk capacitance
12x 270uF 16V TH aluminum polymer
16x 56uF 16V SMD aluminum polymer

Vcore Controller: MP2891 12 phases
MOSFETs: 24x FDMF3170 70A SPS (2 per phase) 2022-10-12 23:00:23 +0000 UTC View Post

RTX 4090 Founders Edition PCB breakdown notes

Input filtering bulk capacitance
13x 180uF 16V TH aluminum polymer
13x 100uF 16V SMD tantalumn polymer

Vcore
Controller: MP2891 10 phases
MOSFETs: 20x MP86957 70A SPS (2 per phase...

Gigabyte X670E Aorus Xtreme Vcore regulation test results

All measurements are taken with a Rigol DS1054Z unlocked to 100MHz bandwidth.

Ultra Extreme LLC is the absolute worst thing I've measured on an AM5 motherboard so far with 180mv of undershoot...

Gigabyte X670 Aorus Elite AX load line calibration test

All measurements are taken with a Rigol DS1054Z unlocked to 100MHz bandwidth.

Extreme LLC is absolutely atrocious with 140mv of undershoot

Turbo LLC still sucks with 130mv of undershoot...

ASUS Crosshair X670E Gene load line calibration test results

All measurements are taken with a Rigol DS1054Z unlocked to 100MHz bandwidth.

Level 8 LLC is as expected absolutely horrendous with a worst case scenario undershoot of 140mv (difference betwe...

Ryzen 9 7950X power scaling

X670 Aorus Elite AX PCB Breakdown notes

Vcore
Infineon XDPE192C3B 8phase
Infineon TDA21472 70A SPS x2 per phase
10x Apaq 5K 560uF TH poly
6x Apaq 5K 270uF TH poly
400nH inductors
400KHz 1.2V SPS only
200A 16W
30...

X670E Aorus Xtreme PCB Breakdown notes

Vcore
Renesas RAA229628 18phase
Renesas RAA220105 105A SPS
10x Nichicon 10K 560uF TH poly + 4x Apaq 330uF SMD poly
6x Nichicon 10K 270uF TH poly
300nH inductors
500KHz 1.2V SPS+L<...

ASUS Maximus VII Gene PCB Breakdown summary

MATX
6 Layer PCB

VCCIN VRM --------------------------------------------------------------------
ASP1257 8 phase
IR3535 drivers 200-1000KHz
CDS87350 "upto 40A" dual n-fets
220nH...

AHOC test equipment vs hardware purchasing decisions

So Rigol is now starting to sell these: https://www.rigolna.com/products/digital-oscilloscopes/hd...

4x8GB Hynix DJR on Ryzen

CPU: Ryzen 7 3700X
Cooling: Xigmatek Thor's Hammer + Thermaltake toughfan 12
mobo: Gigabyte B550 Vision D-P
BIOS: F15a
RAM: Gigabyte Aorus RGB Memory 4400C19 + 4800C19 single rank Hynix...

2x8 Nanya 8Gb B-die on Gigabyte B550 Vision D-P

CPU: Ryzen 9 5950X
Cooling: Xigmatek Thor's Hammer + Thermaltake toughfan 12
mobo: Gigabyte B550 Vision D-P
BIOS: F15a
RAM: Corsair Vengeance LPX 3000C15 2x8GB single rank Nanya 8Gb B-d...

AHOC discord link

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here it is: https://discord.gg/jv3xjxv

Does setting tRCDWR to 8 do anything?

Yes it does.

Py Prime 2B running on a 4750G with 1xCh 1Rx8 Hynix 8Gb CJR

2400Mbps (timings have more impact at lower memory clocks as each tick is longer)

12-16/8-16-28-1T
23....

DDR4 timing examples spreadsheet.

Samsung DDR4 8Gb B-die timing guidelines for Ryzen

Viable for 3600-4000Mbps but skewed towards 3800Mbps with 1.4-1.65V depending on RAM chip quality. With GDM enabled. 

Note that most Ryzen 3000/5000 CPUs will not do more than 1900FCLK s...

Simplified RAM timing "definitions" WIP

RAM timings are how much time the RAM is given to complete various commands/operations. How quickly the RAM can complete a command/operation depends on the circuitry of the memory chip, the voltage...