buildzoid

MSI X870 Tomahawk PCB Breakdown Notes

Added 2024-11-02 01:53:04 +0000 UTC

Vcore
MPS MP2857 7 phase
MPS MP87670 80A SPS x2 per phase
output filtering
- 8x NipponChemicon 560uF 6.3V 10K 105C TH alu-poly
input
- 4x NipponChemicon 270uF 16V 10K 105C TH alu-poly
1x NipponChemicon 100uF 16V 10K 105C TH alu-poly
200nH inductors
500KHz 1V SPS only
200A ~13W (9950X stock current limit is 170A)
300A ~20W
400A ~29W
500A ~42W

VSOC
output
- 4x NipponChemicon 560uF 6.3V 10K 105C TH alu-poly
input shared with Vcore
MPS MP2857 +2
MPS MP87670 80A SPS

VDDMISC
output
- 2x NipponChemicon 560uF 6.3V 10K 105C TH alu-poly
input
- shared with Vcore
Richtek RT3672EE 1phase
100nH inductor
Alpha & Omega Semi BR00/AOZ5516QI 55A DrMOS

VDDIO_MEM
Ritchtek ??? 1phase
output 3x NipponChemicon 560uF 6.3V 10K 105C TH alu-poly
input 1x NipponChemicon 560uF 6.3V TH alu-poly
1x AONS36303 High 5.15mOhm RDSon @ 4.5Vgs
1x AONS36303 Low 5.15mOhm RDSon @ 4.5Vgs

Realtek 5G Lan
POST CODE
no ECLK
color coded LEDs
wifi 7
safeboot jumper(doesn't really work)
40Gbps USB ports share PCI-e bandwidth with M.2_2
clr_cmost button
BIOS flash button

summary
Overkill power delivery. Has post code :D