Straps And Xtal - Clevo NH77DBQ Service Manual

Schematic Diagrams

Straps and XTAL

A
Strap 2
0
0
0
0
1
1
1
1
Sheet 21 of 67
0
0
0
Straps and XTAL
0
M
M
B
M
M
1
1
1
1
0
M
M
M
M
1
M
Strap 2
0
0
0
1
1
C
ROM_SO
0
0
0
0
1
1
1
1
Strap 5
0
0
0
0
1
1
1
1
1
D
0
0
0
0
M
M
M
M
B - 22 Straps and XTAL
1 2
22 GPU_PLLVDD
30ohm ESR 10mohm bead
. 40mil
L6 HCB1608KF-300T60
1V8_RUN
Near to GPU
C328 C276
22u_6.3V_X6S_08 4.7u_6.3V_X6S_06
GND
Strap 1 Strap 0 RAMCFG[4:0]
0 0 SAMSUNG 0 (0x0000)
0 1 1 (0x0001)
MICRON
1 0 2 (0x0002)
1 1 3 (0x0003)
0 0 4 (0x0004)
0 1 5 (0x0005)
1 0 6 (0x0006)
1 1 7 (0x0007)
0 M 8 (0x0008)
M 0 9 (0x0009)
M 1 10 (0x000A)
1 M 11 (0x000B)
0 0 12 (0x000C)
0 1 13 (0x000D)
1 0 14 (0x000E)
1 1 15 (0x000F)
0 M 16 (0x0010)
M 0 17 (0x0011)
M 1 18 (0x0012)
1 M 19 (0x0013)
M M 20 (0x0014) 1 = HIGH : Tied to 1.8V
0 M 21 (0x0015) M = Middle : Tied to 0.9V
M 0 22 (0x0016) 0 = Low : Tied to 0V
M 1 23 (0x0017)
1 M 24 (0x0018)
M M 25 (0x0019)
1:Enable 0:Disable
M M 26 (0x001A)
SOR 0/1/2/3 ENABLE
Strap 1 Strap 0 RAMCFG[4:0]
0 0 00000
1 0 00010
1 1 00011
1 0 00110
1 1 00111 1= SMB_ALT_ADDR Enable
0= SMB_ALT_ADDR Disable
ROM_SI ROM_SCLK SOR_EXPOSED[3:0]
0 0 1111
1= DEVID_SEL Rebrand
0 1 1110
0= DEVID_SEL Orignal
1 0 1101
1 1 1100 1= PCIE_CFG Low Power
0 0 1011 0= PCIE_CFG High Power
0 1 1010
1= VGA_DEVICE Enable
1 1 1000
0= VGA_DEVICE Disable
1 M 0000
Strap 4 Strap 3 SMB_ALT_ADDR DEVID_SEL PCIE_CFG VGA_DEVICE
0 0 0 0 0 0
0 1 0 0 0 1
eDP ID
1 0 0 0 1 0
1 1 0 1 0 0
0 0 0 0 1 1
0 1 GSYNC ID 0 1 0 0
1 0 0 1 0 1
1 1 0 1 1 0
1 1 0 1 1 1
0 M 1 0 0 0
M 0 1 0 0 1
M 1 1 0 1 0
1 M 1 0 1 1
0 0 1 1 0 0
0 1 1 1 0 1
1 0 1 1 1 0
1 1 1 1 1 1
1 2
3
G1V
?
BGA2228
COMMON
13/22 XTAL/PLL
GPU_PLLVDD BD12
SP_PLLVDD
20mil
BC12
VID_PLLVDD
C203 C160
GND
40mil
GPU under
U42
GPU near GPCPLL_AVDD0
AF11
GPCPLL_AVDD1
C144 C490 C169 BB24
XSN_PLLVDD
1V8_RUN
R114
*100K_1%_04
XTALSSIN BJ6
GPU under EXT_REFCLK_FL
BL6
GND XTALIN
R115
10K_04
Co-Lay
GND
XTALIN
GND
D03 Raven modfiy 0417
GND
MULTI-LEVEL STRAPS
1V8_AON
Setting RAM type
R538 R95 R97
*100K_1%_04 *100K_1%_04 *100K_1%_04
Rc
Re
23 VGA_ROM_SI
23 VGA_ROM_SO
23 VGA_ROM_SCLK
R537 R96 R98
100K_1%_04 100K_1%_04 100K_1%_04
Rd Rf
GND
DG P.73 recommend Pull down resistor 100k
Setting RAM type
Strap
Samsung K4G41325FE-HC25 E-die 0 X 7 4000MHz 128Mx32
default
3
4 5
XTAL
1V8_AON
R88
100K_04
BK6 XTALOUTBUFF
XTALOUTBUFF
BM6
XTALOUT
R89
100K_04
X3 fsx3m
4 3 XTALOUT
1 2
GND
C971
U83-076_27MHZ 6-22-27R00-1BG
GND
6-22-27R00-1BH
10p_50V_NPO_04
XTAL
GND
1V8_AON
R532 R529 R527 R520 R524 R534
23 STRAP0
23 STRAP1
Strap5
23 STRAP2
eDP = L
23 STRAP3
Gsync= H
23 STRAP4
23 STRAP5
R531 R528 R526 R519 R523 R533
GND
DG P.65 recommend strap resistor 5%
or better , voltage use 1V8_AON
10,12,13,14,15,17,18,20,22,23,24,25,56,59,60,72 1V8_AON
10,11,23,60 1V8_RUN
Title Title Title
[21] STRAPS and XTAL [21] STRAPS and XTAL [21] STRAPS and XTAL
Size Size Size Document Number Document Number Document Number Rev Rev Rev
6-71-NH5D0-D02 6-71-NH5D0-D02 6-71-NH5D0-D02
A3 A3 A3 SCHEMATIC1 SCHEMATIC1 SCHEMATIC1
Date: Date: Date: Friday, February 07, 2020 Friday, February 07, 2020 Friday, February 07, 2020 Sheet Sheet Sheet 21 21 21 of of of 74 74 74
4 5
A
B
C
D
D02 D02 D02