Intel 815 - Page 211

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
GMCH DECOUPLING DISPLAY CACHE DECOUPLING ICH DECOUPLING
SYSTEM MEMORY DECOUPLING
BULK POWER DECOUPLING
3 VOLT DECOUPLING
GMCH Core Plane Decoupling:
Place 1 .1uF/.01uF pair in each
corner and 2 on opposite sides
close to component if they fit.
Display Cache: Near the power pins.
DIMM Decoupling:
Distribute near DIMM0
Power pins.
ICH 3.3V Plane Decoupling:
Place 1 .uF/.01uF pair in each
corner, and 2 on opposite sides
close to component if they fit.
Distribute near the 1.8V
power pins of the ICH
Distribute near the VCCSUS
power pins of the ICH
GMCH 3.3V IO Decoupling:
Place near GMCH Display
Cache Quadrant.
Distribute as close as possible to
GMCH System Memory
Quadrant.
DIMM1 Decoupling:
Distribute near DIMM1
Power Pins.
.1F on back side. Do not populate.
.01F on back side. Do not
populate.
INTEL(R) 82815 CHIPSET CUSTOMER REFERENCE BOARD
VRM DECOUPLING
40
1.0
3-26-01
38
Platform Apps Engineering
1900 Prairie City Road
Folsom, CA 95630
REV.
R
Last Revision Date:
Sheet:
of
Title:
int
e
l
VCC12-
VCC12VCC_5-VCC5
VCC3_3
VCC3_3
VCC1_8
VDDQ
VCC1_8 VDDQ VCC3_3 VCC1_8
VCC3SBY
VCC3SBY
VCC3SBY
VCC3SBY
C272
0.1UF
12
C273
0.1UF
12
C277
0.1UF
12
C243
0.1UF
12
C28
0.1UF
12
C31
01.UF
12
C332
0.1UF
12
C383
0.1UF
12
C281
0.1UF
12
C274
0.1UF
12
C329
0.1UF
12
C339
0.1UF
12
C293
0.1UF
12
C290
0.1UF
12
C324
0.01UF
12
C326
0.01UF
12
C328
0.01UF
12
C327
0.01UF
12
C381
0.1UF
12
C286
0.1UF
12
C292
0.1UF
12
C287
0.1UF
12
C227
0.01UF
12
C429
0.01UF
12
C194
0.01UF
12
C223
0.01UF
12
C132
0.01UF
12
C191
0.01UF
12
C430
0.01UF
12
C240
0.01UF
12
C141
0.1UF
12
C202
0.1UF
12
C204
0.1UF
12
C96
0.1UF
12
C246
0.1UF
12
C58
0.1UF
12
C234
0.01UF
12
C231
0.01UF
12
C230
0.01UF
12
C232
0.01UF
12
C228
0.01UF
12
C229
0.01UF
12
C137
0.01UF
12
C433
0.01UF
12
C431
0.01UF
12
C432
0.01UF
12
C198
0.01UF
12
C199
0.01UF
12
C136
0.01UF
12
C139
0.01UF
12
C138
0.01UF
12
C200
0.01UF
12
C201
0.01UF
12
C133
0.01UF
12
C95
0.1UF
12
C434
0.01UF
12
C427
0.01UF
12
C435
0.01UF
12
C373
0.1UF
12
C375
0.1UF
12
C203
0.1UF
12
C142
0.1UF
12
C374
0.1UF
12
C417
0.1UF
12
C416
0.1UF
12
C376
0.1UF
12
C313
0.1UF
12
C420
0.1UF
12
C370
0.1UF
12
C371
0.1UF
12
C319
0.1UF
12
C318
0.1UF
12
C314
0.1UF
12
C418
0.1UF
12
C372
0.1UF
12
C323
0.1UF
12
C377
0.1UF
12
C419
0.1UF
12
C23
0.1UF
12
C59
0.1UF
12
C320
0.1UF
12
C369
0.1UF
12
C21
0.1UF
12
C22
0.1UF
12
C378
0.1UF
12
C379
0.1UF
12
C19
0.1UF
12
C349
0.1UF
12
C311
0.1UF
12
C365
0.1UF
12
C364
0.1UF
12
C310
0.1UF
12
C413
0.1UF
12
C362
0.1UF
12
+
C382
2.2UF
12
+
C288
4.7UF
12
+
C238
4.7UF
12
+
C192
10UF
12
+
C20
4.7UF
12
+
C97
4.7UF
12
+
C421
22UF
12
+
C24
22UF
12
C338
0.01UF
12
+
C366
22UF
1 2
+
C60
22UF
1 2
+
C241
22UF
12
C325
0.01UF
12
C42
4.7UF
12
C34
4.7UF
12
C69
4.7UF
12
C70
4.7UF
12
C54
4.7UF
12
C477
0.1UF
12
C476
0.1UF
12
C475
0.1UF
12
C474
0.1UF
12
C473
2.2UF
12
C32
0.1UF
12
C169
4.7UF
12
C252
4.7UF
12
C245
4.7UF
12
C127
0.1UF
12
C197
0.1UF
12
C131
0.1UF
12
C193
0.1UF
12
C276
0.1UF
12
C275
0.1UF
12
C135
0.1UF
12
C428
0.1UF
12