Mechanical Drawings
114
Ther
mal and Mechanical Design Guidelines
Figure 66. ATX/µATX Motherboard Keep-out
Footprint D
e
finition and Height Restrictions for Enabling Components - Sheet 1
B
C
D
A
1
2
3
4
5
6
7
8
47.5
0
47
.5
0
2
0.
00
2
0.00
39
.0
1
21
.0
0
20
.0
0
28
.0
0
36
.7
8
41
.0
0
36
.0
0
31
.51
23
.00
15
.50
15
.50
23
.00
31
.51
31
.5
1
36
.7
8
45
.2
6
31
.9
6
45
.2
6
19
.32
19
.32
47.5
0
45.2
6
36.4
9
27.0
0
36.7
8
23.4
7
23.4
7
36.7
8
45.2
6
40.0
0
27.8
1
32.5
1
27.5
1
32.5
1
27.5
1
47
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0
4X
4.
03
36.
00
36.
00
24
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6.
15
5.90
7.30
7.
05
13
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2.2
0
33.00
44.0
0
40.0
0
39.0
1
39.01
39.
01
36.0
0
36.0
0
()
17.
44
PI
N
1
()
16
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65
()
1.
17
()
1.
09
()
1.
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2.
80
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1.
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()
1.
17
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0
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37.
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37
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95.
00
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72
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95
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00
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570
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16.
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(
)
16.8
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20
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19.
13
LE
G
E
ND
SOC
KET
/T
H
ER
M
O/
M
EC
H
AN
IC
AL C
O
MPON
EN
T
KEEP-
IN
S
10.
0 MM M
AX
C
O
M
P
ON
EN
T
H
E
IG
HT
2.
5 MM
M
A
X
CO
M
P
O
N
E
N
T HE
IG
HT
6.
0 MM
M
A
X
CO
M
P
O
N
E
N
T HE
IG
HT
25.
0 MM M
AX
C
O
M
P
ON
EN
T
H
E
IG
HT
1.
8 MM
M
A
X
CO
M
P
O
N
E
N
T HE
IG
HT
BOA
R
D
R
O
U
TI
N
G KEEP-
OU
T
SHEET
1
O
F
3
DO NOT
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LE DRA
W
ING
SCAL
E:
NO
NE
3
C4
08
19
D
REV
DRAW
IN
G
NUM
B
ER
CAGE CO
DE
SI
ZE
LG
A7
75
mi
cr
oA
TX
C
O
M
PON
EN
T KEE
P-I
N
S
TI
TL
E
22
00
M
ISS
IO
N
C
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LL
EG
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BL
VD
.
P.
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. BO
X
58
11
9
SAN
TA C
LAR
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C
A
95
05
2-
81
19
CO
RP
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R
DE
PART
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ENT
N/
A
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N
IS
H
:
N/
A
MA
T
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IA
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:
DAT
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A
PPRO
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BY
DAT
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A
PPRO
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CHE
CKE
D
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DAT
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ISE
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ET
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D T
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IN
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D
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H
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E Y
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D
IME
N
S
IO
N
S
A
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E
IN
MILLIME
TE
R
S
TH
IRD ANG
LE PRO
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IO
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SI
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N
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IST
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SC
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IPT
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D
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APPR
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NO
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S
:
1.
D
IMEN
S
IO
N
S
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E
IN
M
IL
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M
ET
ER
S.
2
G
E
O
M
E
TRI
C CE
N
TE
R
O
F
C
P
U P
A
CK
AG
E
/ S
O
C
K
E
T HO
US
ING
CA
V
ITY
.
3.
B
O
A
RD CO
MP
O
N
E
N
E
T
KE
E
P
-IN
S
A
N
D ME
CHA
NI
C
A
L CO
MP
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N
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T K
E
E
P
-O
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TS
TO
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TI
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D
W
IT
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IEN
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N
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S F
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PLAC
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ES
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ASSEM
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ESS
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YN
AM
IC
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ON
S.
4.
A
S
SUME
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Y
M
M
E
TR
Y
FO
R UNDI
ME
NS
IO
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D C
O
RNE
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A
ND
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DG
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.
DE
TAIL
A
BO
AR
D
PR
IM
AR
Y SI
D
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PA
C
K
AGE
BO
U
NDA
RY
SO
C
KE
T BA
LL 1
SO
C
KE
T VO
L
OU
TLI
NE
SE
E D
ET
AI
L
A
SOC
KET
BAL
LS
PA
C
KAGE LAN
D
S
SO
C
KET
BAL
L 1
S
O
C
KE
T HO
US
ING
CA
V
ITY
PAC
KA
GE BOU
N
D
A
R
Y
PI
N
1
Summary of Contents for QX68000 Core 2 Extreme
Page 30: ...LGA775 Socket Heatsink Loading 30 Thermal and Mechanical Design Guidelines...
Page 74: ...Heatsink Clip Load Metrology 74 Thermal and Mechanical Design Guidelines...
Page 76: ...Thermal Interface Management 76 Thermal and Mechanical Design Guidelines...
Page 96: ...Case Temperature Reference Metrology 96 Thermal and Mechanical Design Guidelines...
Page 108: ...Legacy Fan Speed Control 108 Thermal and Mechanical Design Guidelines...
Page 112: ...BTX System Thermal Considerations 112 Thermal and Mechanical Design Guidelines...