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Intel OverDrive
  Intel OverDrive ODP486SX-25
  Intel OverDrive ODPR486DX-25
  Intel OverDrive ODPR486DX-25 (V3.0)
  Intel OverDrive ODPR486DX-33
  Intel OverDrive ODPR486DX-33 w/o Cooler
  Intel OverDrive ODPR486DX-33 (V3.0)
  Intel OverDrive DX2ODP50
  Intel OverDrive DX2ODP66 (V4.0)
  Intel OverDrive DX2ODPR66 (V3.0)
  Intel OverDrive DX2ODPR66 (V4.0)
  Intel OverDrive DX4ODP75
  Intel OverDrive DX4ODPR75 (V1.1)
  Intel OverDrive DX4ODPR100 (V1.0)
  Intel OverDrive DX4ODPR100 (V1.1)
  Intel Pentium OverDrive PODP5V63
  Intel Pentium OverDrive PODP5V83
  Intel Pentium OverDrive PODP5V133
  Intel Pentium OverDrive PODP3V125
  Intel Pentium OverDrive PODP3V150
  Intel Pentium OverDrive PODP3V166
  Intel Pentium MMX OverDrive PODPMT66X166
  Intel Pentium MMX OverDrive PODPMT60X180
  Intel Pentium MMX OverDrive PODPMT66X200
  Intel Pentium II OverDrive PODP66X333
» Intel overview
» all OverDrive chips
» all 686 chips
 
Intel 486 OverDrive Processors
Intel OverDrive processors are a category of various Intel CPUs that were produced to upgrade computers. ODP is the acronym for Over Drive Processor, however most OverDrives are ODPR (Over Drive Processor Replacement) chips: To upgrade a computer to a new processor you just replace it with the new one. Their interfaces appear to the motherboard like an older chip, so you don't need to worry about whether or not the motherboard supports the higher speeds. ODP chips (like the DX2ODP66 or the ODP486SX-25) in contrast were made for additional sockets on the mainboard, the Performance Upgrade Socket.
 
On older versions Intel labeled the OverDrive chips with the external local bus speed they supported, like the ODP486SX-25 and ODPR486DX-33. Since all these OverDrive chips have the clock doubling feature, it was assumed by Intel that everyone knows that the CPU runs at twice the bus speed internally. Newer chips follow the DX2/DX4 naming scheme of the i486 DX.
Intel OverDrive ODP486SX-25
Intel OverDrive ODP486SX-25 Top Side
ODP486SX-25
SZ676
C2281437 A2
INTEL (M) (c) 1989
Intel OverDrive ODP486SX-25 Back Side
C2166723CE
A4
EE 25
This is an OverDrive processor for an additional OverDrive socket on the mainboard.
Upgrades 25 MHz Intel 486SX based systems to 50 MHz.
 
Comment by Paul Collins (pi314aussie[at]yahoo.com):
Note the extra pin. It is a kind of "tell the other guy to shut down" pin. Implemented so that the end-user can just "add" this new chip into the spare upgrade socket, without any need of interfering with the originally supplied SX CPU. Ie. what end-user can remove a PLCC or even PQFP chip.
 
add comment
Core Frequency:50 MHz
Board Frequency:25 MHz
Clock Multiplier:2.0
Data bus (ext.):32 Bit
Address bus:32 Bit
Voltage:5 V
Introduced:1992
Manufactured:week 28/1992
L1 Cache:8 KB
CPU Code:i486 ODP
P4T
Intel S-Spec: SZ676
Package Type:Ceramic
PGA-169
Socket: 1/2/3
top of page
Intel OverDrive ODPR486DX-25
Intel OverDrive ODPR486DX-25 Top Side
ODPR486DX-25
SZ697
C243502W B1
INTEL(M)(C)1989
Intel OverDrive ODPR486DX-25 Back Side
C2365083CB
A4
BM 43
Upgrades 25 MHz Intel 486DX and SX based systems to 50 MHz.
 
add comment
Core Frequency:50 MHz
Board Frequency:25 MHz
Clock Multiplier:2.0
Data bus (ext.):32 Bit
Address bus:32 Bit
Voltage:5 V
Introduced:06/1993
Manufactured:week 43/1992
L1 Cache:8 KB
CPU Code:i486 ODPR
P4T
Intel S-Spec: SZ697
Package Type:Ceramic
PGA-168
Socket: 1/2/3
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Intel OverDrive ODPR486DX-25 (V3.0)
Intel OverDrive ODPR486DX-25 (V3.0) Top Side
ODPR486DX-25
C4070536
SZ877 V3.0
(M)(C)1989 1992
Intel OverDrive ODPR486DX-25 (V3.0) Back Side
9343929GCA
A4
EE 07
Upgrades 25 MHz Intel 486DX and SX based systems to 50 MHz.
 
add comment
Core Frequency:50 MHz
Board Frequency:25 MHz
Clock Multiplier:2.0
Data bus (ext.):32 Bit
Address bus:32 Bit
Voltage:5 V
Introduced:06/1993
Manufactured:week 07/1994
L1 Cache:8 KB
CPU Code:i486 ODPR
P4T
Intel S-Spec: SZ877
Package Type:Ceramic
PGA-168
Socket: 1/2/3
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Intel OverDrive ODPR486DX-33
Intel OverDrive ODPR486DX-33 Top Side
ODPR486DX-33
SZ698
C240046W B1
INTEL(M)(C)1989
Intel OverDrive ODPR486DX-33 Back Side
C2294373CC
A4
BM 37
Upgrades 33 MHz Intel 486DX and SX based systems to 66 MHz.
 
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Core Frequency:66 MHz
Board Frequency:33 MHz
Clock Multiplier:2.0
Data bus (ext.):32 Bit
Address bus:32 Bit
Voltage:5 V
Manufactured:week 40/1992
L1 Cache:8 KB
CPU Code:i486 ODPR
P4T
Intel S-Spec: SZ698
Package Type:Ceramic
PGA-168
Socket: 1/2/3
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Intel OverDrive ODPR486DX-33 w/o Cooler
Intel OverDrive ODPR486DX-33 w/o Cooler Top Side
ODPR486DX-33
SZ698
C2522231 B1
INTEL (M) (c) 1989
Intel OverDrive ODPR486DX-33 w/o Cooler Back Side
C2441524CA
A4
BM 52
Upgrades 33 MHz Intel 486DX and SX based systems to 66 MHz.
 
add comment
Core Frequency:66 MHz
Board Frequency:33 MHz
Clock Multiplier:2.0
Data bus (ext.):32 Bit
Address bus:32 Bit
Voltage:5 V
Introduced:06/1993
Manufactured:week 17/1994
L1 Cache:8 KB
CPU Code:i486 ODPR
P4T
Intel S-Spec: SZ698
Package Type:Ceramic
PGA-168
Socket: 1/2/3
top of page
Intel OverDrive ODPR486DX-33 (V3.0)
Intel OverDrive ODPR486DX-33 (V3.0) Top Side
ODPR486DX-33
C4050331
SZ878 V3.0
(M)(C)1989 1992
Intel OverDrive ODPR486DX-33 (V3.0) Back Side
8345591GCB
A4
EE 04
Upgrades 33 MHz Intel 486DX and SX based systems to 66 MHz.
 
add comment
Core Frequency:66 MHz
Board Frequency:33 MHz
Clock Multiplier:2.0
Data bus (ext.):32 Bit
Address bus:32 Bit
Voltage:5 V
Introduced:06/1993
Manufactured:week 05/1994
L1 Cache:8 KB
CPU Code:i486 ODPR
P4T
Intel S-Spec: SZ878
Package Type:Ceramic
PGA-168
Socket: 1/2/3
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Intel OverDrive DX2ODP50
Intel OverDrive DX2ODP50 Top Side BOXDX2ODP50, SZ932
Intel OverDrive DX2ODP50 Back Side
This is an OverDrive processor for an additional OverDrive socket on the mainboard.
 
Upgrades 25 MHz Intel 486DX and SX based systems to 50 MHz.
 
The Processor is still sealed in its original box.
 
add comment
Core Frequency:50 MHz
Board Frequency:25 MHz
Clock Multiplier:2.0
Data bus (ext.):32 Bit
Address bus:32 Bit
Voltage:5 V
Introduced:06/1993
L1 Cache:8 KB
CPU Code:i486 ODP
Intel S-Spec: SZ932
Package Type:Ceramic
PGA-169
Cooler
Socket: 1/2/3
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Intel OverDrive DX2ODP66 (V4.0)
Intel OverDrive DX2ODP66 (V4.0) Top Side
DX2ODP66
C4500207
SZ933 V4.0
INTEL (M) (c) '89 '92
Intel OverDrive DX2ODP66 (V4.0) Back Side
94394054CC
A4
AG 49
This is an OverDrive processor for an additional OverDrive socket on the mainboard.
Upgrades 33 MHz Intel 486DX and SX based systems to 66 MHz.
 
Comment by Paul Collins (pi314aussie[at]yahoo.com):
Note the extra pin. It is a kind of "tell the other guy to shut down" pin. Implemented so that the end-user can just "add" this new chip into the spare upgrade socket, without any need of interfering with the originally supplied SX CPU. Ie. what end-user can remove a PLCC or even PQFP chip.
 
add comment
Core Frequency:66 MHz
Board Frequency:33 MHz
Clock Multiplier:2.0
Data bus (ext.):32 Bit
Address bus:32 Bit
Voltage:5 V
Introduced:06/1993
Manufactured:week 50/1994
L1 Cache:8 KB
CPU Code:i486 ODP
P23T
Intel S-Spec: SZ933
Package Type:Ceramic
PGA-169
Cooler
Socket: 1/2/3
top of page
Intel OverDrive DX2ODPR66 (V3.0)
Intel OverDrive DX2ODPR66 (V3.0) Top Side
DX2ODPR66
C4370275
SZ904 V3.0
(M)(C)1989 1992
Intel OverDrive DX2ODPR66 (V3.0) Back Side
94394054CC
A4
AG 49
Upgrades 33 MHz Intel 486DX and SX based systems to 66 MHz.
 
There is not much difference between an DX2ODPR66 and a standard 486DX2-66. Intel was marketing their speed doubling technology in different products. DX2 chips were sold to Intel OEMs and OverDrive chips were sold directly to end-users. The DX2 chips typically have no built-in heatsink and have a distinctive DX2 label. The OverDrive chips have a distinctive OverDrive label and may have a built-in heatsink.
The 'V3.0' and 'V4.0' marks the third and fourth stepping of the processor since introduction.
 
References:  pcguide.com  Intel
 
add comment
Core Frequency:66 MHz
Board Frequency:33 MHz
Clock Multiplier:2.0
Data bus (ext.):32 Bit
Address bus:32 Bit
Voltage:5 V
Introduced:06/1993
Manufactured:week 37/1994
L1 Cache:8 KB
CPU Code:i486 ODP
P23T
Intel S-Spec: SZ904
Package Type:Ceramic
PGA-168
Cooler
Socket: 1/2/3
top of page
Intel OverDrive DX2ODPR66 (V4.0)
Intel OverDrive DX2ODPR66 (V4.0) Top Side
DX2ODPR66
C5240780
SZ935 V4.0
INTEL (M)(C)'89'92
Intel OverDrive DX2ODPR66 (V4.0) Back Side
Upgrades 33 MHz Intel 486DX and SX based systems to 66 MHz.
 
add comment
Core Frequency:66 MHz
Board Frequency:33 MHz
Clock Multiplier:2.0
Data bus (ext.):32 Bit
Address bus:32 Bit
Voltage:5 V
Introduced:06/1993
Manufactured:week 24/1995
L1 Cache:8 KB
CPU Code:i486 ODP
P23T
Intel S-Spec: SZ935
Package Type:Ceramic
PGA-168
Cooler
Socket: 1/2/3
top of page
Intel OverDrive DX4ODP75
Intel OverDrive DX4ODP75 Top Side
BOXDX4ODP75
Intel OverDrive DX4ODP75 Back Side

 
Upgrades 25 MHz Intel 486DX & 16/20/25 MHz 486SX based systems to 75 MHz.
The Processor is still sealed in its original box.
 
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Core Frequency:75 MHz
Board Frequency:25 MHz
Clock Multiplier:3.0
Data bus (ext.):32 Bit
Address bus:32 Bit
Voltage:5 V
Introduced:10/1994
L1 Cache:16 KB
CPU Code:i486 ODP
Package Type:Ceramic
PGA-169
Socket: 1/2/3
top of page
Intel OverDrive DX4ODPR75 (V1.1)
Intel OverDrive DX4ODPR75 (V1.1) Top Side
DX4ODPR75
C5291151
SZ958 V1.1
INTEL(M)(C) '89'93
Intel OverDrive DX4ODPR75 (V1.1) Back Side
A5051163CB
A4
29
Upgrades 25 MHz Intel 486DX & 16/20/25 MHz 486SX based systems to 75 MHz.
 
DX4 OverDrives typically have qualities different from standard 486s of the same speed. These include built-in voltage regulators, different pin-outs, write-back cache instead of write-through cache, built-in heatsinks, and fanless operation.
 
References:  pcguide.com
 
Comment by Hugh Russell (hugtheslug[at]yahoo.co.uk):
Also will upgrade DX-66 systems to a stable 100 mhz.
This is probably an overclock of the overdrive itself.
 
Comment by Hugh Russell (hugtheslug[at]yahoo.co.uk):
Forgot to add, 486 fan was attached to heatsink for extra cooling and stability.
 
Comment by Johann (lord80james2003[at]yahoo.com):
The Intel DX4ODP75 was designed for changing 25 MHz 486 systems to run at 75 MHz.
BUT. The v1.1 allowed 33 MHz systems to run at 100 MHz. The first version (1.0) could only bring the speed of a 33 MHz system up to ~83 MHz.
 
add comment
Core Frequency:75 MHz
Board Frequency:25 MHz
Clock Multiplier:3.0
Data bus (ext.):32 Bit
Address bus:32 Bit
Voltage:5 V
Introduced:10/1994
Manufactured:week 29/1995
L1 Cache:16 KB
CPU Code:i486 DPR
P4T
Intel S-Spec: SZ958
Package Type:Ceramic
PGA-168
Socket: 1/2/3
top of page
Intel OverDrive DX4ODPR100 (V1.0)
Intel OverDrive DX4ODPR100 (V1.0) Top Side
DX4ODPR100
C43507058
SZ926 V1.0
INTEL(M)(C) '89'93
Intel OverDrive DX4ODPR100 (V1.0) Back Side
24231670-Z
A4
36
Upgrades 33 MHz Intel 486DX & SX based systems to 100 MHz.
 
add comment
Core Frequency:100 MHz
Board Frequency:33 MHz
Clock Multiplier:3.0
Data bus (ext.):32 Bit
Address bus:32 Bit
Voltage:5 V
Introduced:10/1994
Manufactured:week 35/1994
L1 Cache:16 KB
CPU Code:i486 DPR
P4T
Intel S-Spec: SZ926
Package Type:Ceramic
PGA-168
Socket: 1/2/3
top of page
Intel OverDrive DX4ODPR100 (V1.1)
Intel OverDrive DX4ODPR100 (V1.1) Top Side
DX4ODPR100
C5040328
SZ959 V1.1
INTEL(M)(C) '89'93
Intel OverDrive DX4ODPR100 (V1.1) Back Side
24441330CC
A4
20
Upgrades 33 MHz Intel 486DX & SX based systems to 100 MHz.
 
add comment
Core Frequency:100 MHz
Board Frequency:33 MHz
Clock Multiplier:3.0
Data bus (ext.):32 Bit
Address bus:32 Bit
Voltage:5 V
Introduced:10/1994
Manufactured:week 04/1995
L1 Cache:16 KB
CPU Code:i486 DPR
P4T
Intel S-Spec: SZ959
Package Type:Ceramic
PGA-168
Socket: 1/2/3
top of page
This Pentium OverDrives are Intel Pentium processors for 486 Socket 3 and Socket 2 motherboards, provided as a means to give a Pentium performance-level upgrade option for owners of 486 computer systems. It was however criticised for being more expensive and slower than competing CPU-upgrade options such as the AMD Am5x86 and Cyrix 5x86, and being too late to the market. Mainboard compatibility was also a problem, it turned out that many boards didn't support this new chip.
 
To perform properly, the Pentium OverDrive was dependent on a high amount of secondary cache ram being present on the motherboard; without it the chip was only a trivial amount faster than a DX4.
 
References:  Datasheet  Intel  pcguide.com
Intel Pentium OverDrive PODP5V63
Intel Pentium OverDrive PODP5V63 Top Side
PODP5V63
C5321144-0115
SZ990 V1.1
INTEL (M)(C)'92'94
Intel Pentium OverDrive PODP5V63 Back Side
A5124018CB
A4
31
Upgrades 25 MHz Intel 486 based systems to Pentium technology at 63 MHz.
 
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Core Frequency:63 MHz
Board Frequency:25 MHz
Clock Multiplier:2.5
Data bus (ext.):32 Bit
Address bus:32 Bit
Transistors:3,300,000
Circuit Size:0.60
Voltage:5 V
Introduced:February 3, 1995
Manufactured:week 32/1995
L1 Cache:16+16 KB
CPU Code:P24T
Intel S-Spec: SZ990
Package Type:Ceramic
PGA-234
Socket: 2,3
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Intel Pentium OverDrive PODP5V83
Intel Pentium OverDrive PODP5V83 Top Side
PODP5V83
C5418391-0116
SU014 V2.1
INTEL (M)(C)'92'94
Intel Pentium OverDrive PODP5V83 Back Side
A5301434CA
A4
41
Upgrades 33 MHz Intel 486 based systems to Pentium technology at 83 MHz.
 
add comment
Core Frequency:83 MHz
Board Frequency:33 MHz
Clock Multiplier:2.5
Data bus (ext.):32 Bit
Address bus:32 Bit
Transistors:3,300,000
Circuit Size:0.60
Voltage:5 V
Introduced:October, 1995
Manufactured:week 41/1995
L1 Cache:16+16 KB
CPU Code:P24T
Intel S-Spec: SU014
Package Type:Ceramic
PGA-234
Socket: 2,3
top of page
The original Pentium P5 chips were different than later P54 versions, in terms of voltage, socket size and power consumption. Intel made a clock-doubling OverDrive for these chips, which is sold as one 120/133 MHz chip: when replacing a Pentium 60 it runs at 120 MHz, and when replacing a 66 it runs at 133. This is a true Pentium chip since it is on a Pentium motherboard, although it still benchmarks below the real Pentium 120/133, most likely due to the older design of the Pentium 60/66 motherboards.
Intel Pentium OverDrive PODP5V133
Intel Pentium OverDrive PODP5V133 Top Side PODP5V133
L6073203-0467
SU082 V1.0
INTEL (M)(C)'92'93
Intel Pentium OverDrive PODP5V133 Back Side 15389030AB
MALAY ES
Upgrades classic Pentium P5 60/66 MHz systems to 120/133 MHz.
 
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Core Frequency:133 MHz
Board Frequency:66 MHz
Clock Multiplier:2.0
Data bus (ext.):64 Bit
Address bus:32 Bit
Transistors:3,300,000
Circuit Size:0.35
Voltage:5 V
Introduced:04/1996
Manufactured:week 03/1996
Made in:Malaysia
L1 Cache:8+8 KB
Intel S-Spec: SU082
Package Type:Ceramic
PGA-273
Socket: 4
top of page
Pentium 75, 90 and 100 MHz run with a clock multiplier of 1.5 on system buses of 50, 60 and 66 MHz respectively. Intel has made OverDrives for these running at 125, 150 and 166 MHz by using a clock multiplier of 2.5.
Intel Pentium OverDrive PODP3V125
Intel Pentium OverDrive PODP3V125 Top Side
PODP3V125
L6034092-015
SU081 V1.0
INTEL (M)(C)'92'93
Intel Pentium OverDrive PODP3V125 Back Side
15422420AE
MALAY K
Upgrades Pentium 75 Mhz to Pentium 125 MHz.

Original package.
 
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Core Frequency:125 MHz
Board Frequency:50 MHz
Clock Multiplier:2.5
Data bus (ext.):64 Bit
Address bus:32 Bit
Transistors:4,500,000
Circuit Size:0.35
Voltage:3.3 V
Manufactured:week 03/1996
Made in:Malaysia
L1 Cache:8+8 KB
Intel S-Spec: SU081
Package Type:Ceramic
PGA-320
Socket: 5, 7
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Intel Pentium OverDrive PODP3V150
Intel Pentium OverDrive PODP3V150 Top Side
PODP3V150
L6092721-0558
SU083 V1.0
INTEL (M)(C)'92'93
Intel Pentium OverDrive PODP3V150 Back Side
15491660AE
MALAY K
Upgrades Pentium 90 Mhz to Pentium 150 MHz.
 
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Core Frequency:150 MHz
Board Frequency:60 MHz
Clock Multiplier:2.5
Data bus (ext.):64 Bit
Address bus:32 Bit
Transistors:4,500,000
Circuit Size:0.35
Voltage:3.3 V
Manufactured:week 09/1996
Made in:Malaysia
L1 Cache:8+8 KB
Intel S-Spec: SU083
Package Type:Ceramic
PGA-320
Socket: 5, 7
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Intel Pentium OverDrive PODP3V166
Intel Pentium OverDrive PODP3V166 Top Side
PODP3V166
L6063862-0448
SU084 V1.0
INTEL (M)(C)'92'93
Intel Pentium OverDrive PODP3V166 Back Side
15422820AE
MALAY K
Upgrades Pentium 100 Mhz to Pentium 166 MHz.
 
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Core Frequency:166 MHz
Board Frequency:66 MHz
Clock Multiplier:2.5
Data bus (ext.):64 Bit
Address bus:32 Bit
Transistors:4,500,000
Circuit Size:0.35
Voltage:3.3 V
Manufactured:week 06/1996
Made in:Malaysia
L1 Cache:8+8 KB
Intel S-Spec: SU084
Package Type:Ceramic
PGA-320
Socket: 5, 7
top of page
With the introduction of the Intel Pentium with MMX Technology, Intel also created OverDrive processors to upgrade existing Pentium motherboards to the new MMX chip. Most older Pentium motherboards cannot handle the new Pentium with MMX because of its requirement for a 2.8V core. Keeping with the tradition of Intel's OverDrive line, the Pentium with MMX OverDrive includes a converter that lets it run in Socket 5 motherboards (except for the 200) and Socket 7s that do not have 2.8V support. Otherwise the chip is identical to the standard Pentium with MMX.
 
References: Datasheet  pcguide.com
Intel Pentium MMX OverDrive PODPMT66X166
Intel Pentium MMX OverDrive PODPMT66X166 Top Side
PODPMT66X166
W/ MMX TECH
L7273398-0714
SL24W V1.1
INTEL (M)(C)'92'95
Intel Pentium MMX OverDrive PODPMT66X166 Back Side
E7093326AE
MALAY
Upgrades original Pentium 75 to 125, 90 to 150 MHz and 100 MHz (66 MHz bus) to Pentium MMX 166 MHz.
 
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Core Frequency:166 MHz
Board Frequency:66 MHz
Clock Multiplier:2.5
Data bus (ext.):64 Bit
Address bus:32 Bit
Transistors:4,500,000
Circuit Size:0.28
Core / I/O Voltage:3.3 / 3.3 V
Introduced:01/1997
Manufactured:week 27/1997
Made in:Malaysia
L1 Cache:16+16 KB
CPU Code:P54CTB
Intel S-Spec: SL24W
Package Type:Ceramic
PGA-320
Socket: 5, 7
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Intel Pentium MMX OverDrive PODPMT60X180
Intel Pentium MMX OverDrive PODPMT60X180 Top Side
PODPMT60X180
W/ MMX TECH
L7473354-0117
SL2RL V2.1
INTEL (M)(C)'92'95
Intel Pentium MMX OverDrive PODPMT60X180 Back Side
E7245708AB
MALAY
Upgrades original Pentium 75 to 150, 90/120 to 180 MHz and 100 MHz (50 MHz bus) to Pentium MMX 150 MHz.
 
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Core Frequency:180 MHz
Board Frequency:60 MHz
Clock Multiplier:3.0
Data bus (ext.):64 Bit
Address bus:32 Bit
Transistors:4,500,000
Circuit Size:0.28
Core / I/O Voltage:3.3 / 3.3 V
Introduced:01/1997
Manufactured:week 47/1997
Made in:Malaysia
L1 Cache:16+16 KB
CPU Code:P54CTB
Intel S-Spec: SL2RL
Package Type:Ceramic
PGA-320
Socket: 5, 7
top of page
Intel Pentium MMX OverDrive PODPMT66X200
Intel Pentium MMX OverDrive PODPMT66X200 Top Side
PODPMT66X200
W/ MMX TECH
L7463417-0315
SL2FF V2.0
INTEL (M)(C)'92'95
Intel Pentium MMX OverDrive PODPMT66X200 Back Side
E7226356AB
MALAY
Upgrades original Pentium 100/133/166 MHz to Pentium MMX 200 MHz, 90/120/150 MHz to Pentium MMX 180 MHz and 75 MHz to Pentium MMX 150 MHz.
 
add comment
Core Frequency:200 MHz
Board Frequency:66 MHz
Clock Multiplier:3.0
Data bus (ext.):64 Bit
Address bus:32 Bit
Transistors:4,500,000
Circuit Size:0.28
Core / I/O Voltage:3.3 / 3.3 V
Introduced:01/1997
Manufactured:week 46/1997
Made in:Malaysia
L1 Cache:16+16 KB
CPU Code:P54CTB
Intel S-Spec: SL2FF
Package Type:Ceramic
PGA-320
Socket: 7
top of page
The Intel Pentium II OverDrive Processor
The Pentium II OverDrive is a processor upgrade designed for Pentium Pro (Socket 8) based systems. By using the 0.25 micron Deschutes core of the Pentium II, Intel managed to put a quick end to the 16-bit weakness of the Pentium Pro, and in doing so, they also managed to double the amount of L1 cache on the processor to 32KB. The PII OverDrive is nothing more than a Pentium II Xeon on a smaller scale, using the Pentium II's design to place the L2 cache externally off of the CPU, but on a card that would allow it to operate at the same clock speed as the CPU itself. The chip has a built in clock multiplier of 5.0x, and it derives its clock speed based on the motherboard's set FSB frequency, so on a 60Mhz board (150/180MHz Pentium Pro systems) the processor operates at 300MHz, on 66MHz systems (166/200MHz Pentium Pro) at 333MHz.
 
References:  Intel  Introduction Press Release  Sandpile.org
Intel Pentium II OverDrive PODP66X333
Intel Pentium II OverDrive PODP66X333 Top Side
PODP66X333 SL2KE V1.0
pentium II overdrive
PROCESSOR
SMTD
692077-001
I(M)(C)'97
Intel Pentium II OverDrive PODP66X333 Back Side
Intel Pentium II OverDrive PODP66X333 Top Side
Upgrades 150 and 180MHz Pentium Pro based systems to Pentium II 300MHz, 166 and 200MHz Pentium Pro based systems to Pentium II 333MHz.
 
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Core Frequency:333 MHz
Board Frequency:66 MHz
Clock Multiplier:5.0
Data bus (ext.):64 Bit
Address bus:36 Bit
Transistors:7,500,000
Circuit Size:0.25
Core / I/O Voltage:2.0 / 3.3 V
Introduced:8/1998
Manufactured:week 20/1999
L1 Cache:16+16 KB
L2 Cache:512 KB
Intel S-Spec: SL2KE
Package Type:Plastic
PGA-320
Socket: 8
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