Intel Pentium 3 Slot 1
Slot 2 refers to the physical and electrical specification for the 330-lead Single Edge Contact Cartridge (or edge-connector) used by some of Intel's Pentium II Xeon and certain models of the Pentium III Xeon. When first introduced, Slot 1 Pentium IIs were intended to replace the Pentium and Pentium Pro processors in the home, desktop, and low-end symmetric multiprocessing (SMP) markets.
Gold CPU Recycling Yields And Values.
- With the new Slot 1, Intel added support for symmetric multiprocessing (SMP). A maximum of two Pentium II or Pentium III CPUs can be used in a dual slot motherboard. The Celeron does not have official SMP support. There are also converter cards, known as Slotkets, which hold a Socket 8 so that a Pentium Pro CPU can be used with Slot 1 motherboards.
- Slot 1 Pentium III CPU mounted on a motherboard Since Katmai was built in the same 0.25 µm process as Pentium II 'Deschutes', it had to implement SSE using as little silicon as possible.
Did you know that there is gold in many old CPU’s (central processing units or chips) of old crappy computers? Did you also know that many people don’t know about this or even care? This opens a big opportunity for canny gold investors to acquire a raw source of industrial gold at a fraction of the value of the gold contained in these CPU’s.
These CPU’s can be found in dumped computers on the side of the road, at the local tip and are often given away for free at garage sales. The CPU’s can be divided into three classes:
VERY HIGH YEILD CPU’S – Have quarter of a gram or more per piece.
HIGH YEILD CPU’S – Have from 1/20th of a gram up to quarter of a gram
LOW YEILD CPU’S – Have under 1/20th of a gram
Below I will give you a list of some of the CPU types and yields that are available, and put an approximate value on them using today’s Australian dollar gold spot price: ($1440 per ounce – $46.30 per Gram)
VERY HIGH YEILD CPU’S:
NEC (server chip) – 0.27g – $12.50 per CPU
Toshiba (server chip) – 0.27g – $12.50 per CPU
AMD K5 – 0.50g – $23.15 per CPU
Pentium Pro (the holy grail of yields) 1.0g – $46.30 per CPU ($56.50 at $1760 per ounce)
Cyrix 586 – 0.25g – $11.58 per CPU
IBM 686 PR200 – 0.25g – $11.58 per CPU
Original Intel Pentium 60Mhz – 90Mhz 0.48g – $22.22 per CPU
HIGH YEILD CPU’S
Cyrix 486 – 0.11g – $5.09 per CPU
IBM 586 – 0.1g – $4.63 per CPU
Texas Instruments 486 – 0.1g – $4.63 per CPU
Intel 486SX – 0.1g – $4.63 per CPU
i486 TX 486DLC – 0.12g – $5.55 per CPU
AMD (early green) – 0.11g – $5.09 per CPU
Cyrix 686 – 0.21g – $9.72 per CPU
Cyrix MII – 0.18g – $8.33 per CPU
Winchip – 0.17g – $7.87 per CPU
Intel 486 DX4 – 0.19g – $8.80 per CPU
Intel 486 + DX2 – 0.20g – $9.26 per CPU
Intel I960 – 0.16g – $7.40 per CPU
AMD 486 – 0.12g – $5.55 per CPU
AMD (brown) – 0.08g $3.70 per CPU
AMD K6 – 0.11g – $5.09 per CPU
Intel Pentium & MMX (ceramic) 0.12g – $5.55 per CPU
Intel Pentium MMX (ceramic) 0.12g – $5.55 per CPU
LOW YEILD CPU’S
Intel Pentium 1 MMX black fibre
Celeron – black fibre
Celeron – green fibre
Celeron – slot one
Pentium 2 – slot one
Pentium 3 – slot one
Pentium 3 – all types
Pentium 4 – all types
Intel Core – all types
Intel Core 2 Duo – all types
Intel i3, i5, i7 – all types
WARNING: Recycling can be very dangerous if you are not experienced. The chemicals used to extract the gold can be fatal if misused or inhaled.
| Type | Slot |
|---|---|
| Chip form factors |
|
| Contacts | 242[1] |
| FSB protocol | AGTL+ |
| FSB frequency | 66, 100, and (on third-party chipsets) 133 MHz |
| Voltage range | 1.3 to 3.50 V |
| Processors | Pentium II: 233–450 MHz Celeron: 266–433 MHz |
| Predecessor | Socket 7 |
| Successor | Socket 370 |
| This article is part of the CPU socket series | |
Slot 1 refers to the physical and electrical specification for the connector used by some of Intel's microprocessors, including the Pentium Pro, Celeron, Pentium II and the Pentium III. Both single and dual processor configurations were implemented.
Intel switched back to the traditional socket interface with Socket 370 in 1999.
General[edit]
With the introduction of the Pentium II CPU, the need for greater access for testing had made the transition from socket to slot necessary. Previously with the Pentium Pro, Intel had combined processor and cache dies in the same Socket 8 package. These were connected by a full-speed bus, resulting in significant performance benefits. Unfortunately, this method required that the two components be bonded together early in the production process, before testing was possible. As a result, a single, tiny flaw in either die made it necessary to discard the entire assembly, causing low production yield and high cost.[citation needed]
Intel subsequently designed a circuit board where the CPU and cache remained closely integrated, but were mounted on a printed circuit board, called a Single-Edged Contact Cartridge (SECC). The CPU and cache could be tested separately, before final assembly into a package, reducing cost and making the CPU more attractive to markets other than that of high-end servers. These cards could also be easily plugged into a Slot 1, thereby eliminating the chance for pins of a typical CPU to be bent or broken when installing in a socket.
The form factor used for Slot 1 was a 5-inch-long, 242-contact edge connector named SC242. To prevent the cartridge from being inserted the wrong way, the slot was keyed to allow installation in only one direction. The SC242 was later used for AMD's Slot A as well, and while the two slots were identical mechanically, they were electrically incompatible. To discourage Slot A users from trying to install a Slot 1 CPU, the connector was rotated 180 degrees on Slot A motherboards.
With the new Slot 1, Intel added support for symmetric multiprocessing (SMP). A maximum of two Pentium II or Pentium III CPUs can be used in a dual slot motherboard. The Celeron does not have official SMP support.
There are also converter cards, known as Slotkets, which hold a Socket 8 so that a Pentium Pro CPU can be used with Slot 1 motherboards.[2] These specific converters, however, are rare. Another kind of slotket allows using a Socket 370 CPU in a Slot 1. Many of these latter devices are equipped with own voltage regulator modules, in order to supply the new CPU with a lower core voltage, which the motherboard would not otherwise allow.
Form factors[edit]
Intel Pentium Iii
The Single Edge Contact Cartridge, or 'SECC', was used at the beginning of the Slot 1-era for Pentium II CPUs. Inside the cartridge, the CPU itself is enclosed in a hybrid plastic and metal case. The back of the housing is plastic and has several markings on it: the name, 'Pentium II'; the Intel logo; a hologram; and the model number. The front consists of a black anodized aluminum plate, which is used to hold the CPU cooler. The SECC form is very solid, because the CPU itself is resting safely inside the case. As compared to socket-based CPUs, there are no pins that can be bent, and the CPU is less likely to be damaged by improper installation of a cooler.
Following SECC, the SEPP-form (Single Edge Processor Package) appeared on the market. It was designed for lower-priced Celeron CPUs. This form lacks a case entirely, consisting solely of the printed-circuit board holding the components.
A form factor called SECC2 was used for late Pentium II and Pentium III CPUs for Slot 1, which was created to accommodate the switch to flip chip packaging.[3] Only the front plate was carried over, the coolers were now mounted straight to the PCB and exposed CPU die and are, as such, incompatible with SECC cartridges.

History[edit]
Historically, there are three platforms for the Intel P6-CPUs: Socket 8, Slot 1 and Socket 370.
Slot 1 is a successor to Socket 8. While the Socket 8 CPUs (Pentium Pro) directly had the L2-cache embedded into the CPU, it is located (outside of the core) on a circuit board shared with the core itself. The exception is later Slot 1 CPUs with the Coppermine core which have the L2-Cache embedded into the die.
In the beginning of 2000, while the Pentium-III-CPUs with FC-PGA-housing appeared, Slot 1 was slowly succeeded by Socket 370, after Intel had already offered Socket 370 and Slot 1 at the same time since the beginning of 1999. Socket 370 was initially made for the low-cost Celeron processors, while Slot 1 was thought of as a platform for the expensive Pentium II and early Pentium III models. Cache and core were both embedded into the die.
Slot 1 also obsoleted the old Socket 7, at least regarding Intel, as the standard platform for the home-user. After superseding the Intel P5Pentium MMX CPU, Intel completely left the Socket 7 market.
Chipsets and officially supported CPUs[4][5][edit]
Intel Pentium 3
Intel 440FX [6][edit]
- Introduced in: May 6, 1996
- FSB: 66 MHz
- PIO/WDMA
- Supported RAM type: EDO-DRAM
- Supported CPUs:
- Pentium II with 66 MHz FSB
- Celeron (Covington, Mendocino)
- Used in both Socket 8 (Pentium Pro) and Slot 1 (Pentium II, early Celerons)
- Does not support AGP or SDRAM
- Allowed up to two CPUs for SMP
Intel 440LX [7][edit]
- Introduced in: August 27, 1997
- FSB: 66 MHz
- Supported RAM type: EDO-DRAM, SDRAM
- Supported CPUs: Pentium II, Celeron
- AGP 2× Mode
- UDMA/33
- Pentium II with 66 MHz FSB
- Celeron (Covington, Mendocino)
- Introduced support for AGP and SDRAM
- Allowed up to two CPUs for SMP
Intel 440EX [8][edit]
- Introduced in: April, 1998
- FSB: 66 MHz
- Supported RAM type: EDO-DRAM, SDRAM
- Supported CPUs: Pentium II, Celeron
- AGP 2× Mode
- UDMA/33
- Pentium II with 66 MHz FSB
- Celeron (Covington, Mendocino)
- Same specifications as 440LX, but memory support limited to 256MB and no SMP support.
Intel 440BX [9][edit]
- Introduced in: April 1998
- FSB: 66 and 100 MHz (some motherboards supported overclocking to 133 MHz, allowing usage of Socket 370 CPUs using a Slocket)
- AGP 2× Mode (max memory mapping 32 or 64 MB)
- UDMA/33
- Supported RAM types: SDRAM (PC66 and PC100, PC133 with overclocking) up to 4 DIMMs of 256 MB
- Supported CPUs:
- Pentium II with 66 and 100 MHz FSB
- Pentium III with 100 MHz FSB (133 with overclocking)
- Celeron (Covington, Mendocino, Coppermine)
- Allowed up to two CPUs for SMP
Intel 440ZX[edit]
- Introduced in: November 1998
- FSB: 66 and 100 MHz (some motherboards supported overclocking to 133 MHz, allowing usage of Socket 370 CPUs using a Slocket)
- AGP 2× Mode
- UDMA/33
- Supported RAM types: SDRAM (PC66 and PC100, PC133 with overclocking)
- Supported CPUs:
- Pentium II with 66 and 100 MHz FSB
- Pentium III with 100 MHz FSB (133 with overclocking)
- Celeron (Covington, Mendocino, Coppermine)
Intel 820/820E (Camino)[edit]
- Introduced in: November 1999
- FSB: 66, 100, and 133 MHz
- AGP 4× Mode
- UDMA/66 (i820), UDMA/100 (i820E)
- Supported RAM types: RDRAM, SDRAM (PC133)
- Supported CPUs: All Slot 1 CPUs
- Allowed up to two CPUs for SMP
Via Apollo Pro / Pro+[edit]
- Introduced in: May 1998 (Pro Plus: Dec 1998)
- FSB: 66, 100 MHz (some motherboards supported overclocking to 133 MHz, allowing usage of Socket 370 CPUs using a Slocket)
- AGP 2× Mode
- UDMA/33 (VT82C586B/VT82C596A), UDMA/66 (VT82C596B)
- Supported CPUs:
- Pentium Pro with 66 MHz FSB
- Pentium II with 66 and 100 MHz FSB
- Pentium III with 100 MHz FSB (133 with overclocking)
- Celeron (Covington, Mendocino, Coppermine)
Via Apollo Pro 133[edit]
- Introduced in: July 1999
- FSB: 66, 100, and 133 MHz
- AGP 2× Mode
- UDMA/33 (VT82C596A), UDMA/66 (VT82C596B/VT82C686A), UDMA/100 (VT82C686B)
- Supported CPUs: All Slot 1 CPUs
Via Apollo Pro 133A[edit]
- Introduced in: Oct 1999
- FSB: 66, 100, and 133 MHz
- AGP 4× Mode
- UDMA/66 (VT82C596B/VT82C686A), UDMA/100 (VT82C686B)
- Supported CPUs: All Slot 1 CPUs
- Allowed up to two CPUs for SMP
See also[edit]
List Of Pentium 3 Processors
References[edit]
- ^'CPU Sockets Chart'. erols.com. Retrieved 2009-03-31.
- ^'PPro on a BX?-Usenet Gateway'.
- ^http://www.tomshardware.com/reviews/overclocking-special,94-2.html[dead link]
- ^List of Intel chipsets
- ^List of VIA chipsets
- ^Intel Corporation: 440FX PCIset Datasheet
- ^Intel Corporation: 440LX AGPset Design Guide[permanent dead link]
- ^Intel Corporation: 440EX AGPset Design Guide
- ^Intel Corporation: 440BX AGPset Design GuideArchived 2012-10-04 at the Wayback Machine
Pentium 3 Motherboard
External links[edit]
| Wikimedia Commons has media related to Slot 1. |
- Intel's specifications for the SC242 connectors[permanent dead link]
Pentium 3 Processor
