CN1302351C

CN1302351C - Switching device

Info

Publication number: CN1302351C
Application number: CNB200310120100XA
Authority: CN
Inventors: 何彦; 安岩; 龙健明
Original assignee: Lenovo Beijing Ltd
Current assignee: Lenovo Beijing Ltd
Priority date: 2003-12-26
Filing date: 2003-12-26
Publication date: 2007-02-28
Anticipated expiration: 2023-12-26
Also published as: CN1635440A

Abstract

The present invention relates to a switching device which is used for the conversion between a processor of a personal computer PC and a processor of a server. The present invention comprises a base board, a first socket, a second socket, a phase-locked loop circuit, a GTLREF signal processing circuit, a BR signal processing circuit and a power supply processing circuit, wherein the first socket is arranged on the base board and used for splicing the processor of the personal computer PC or being electrically connected with the installation position for a processor on a main board of the personal computer PC; the second socket is arranged on the base board and used for splicing the processor of the server or being electrically connected with the installation position of a processor on a main board of the server; ground pins between the two sockets, front bus pins, CPU HOST pins, power supply pins and power supply management pins are electrically connected with one another in a corresponding mode; the phase-locked loop circuit is used for processing VCCA signals, VSSA signals and VCCIOPLL signals which are all in the processor and providing frequency multiplication for the processor of the personal computer PC and the processor of the server; the GTLREF signal processing circuit is used for reducing the disturbance of the processors; the BR signal processing circuit is used for matching the impedance of bus request signals in the processor of the server; the power supply processing circuit is used for carrying out wave filtration and energy storage on power supply signals which provide electricity for the processors.

Description

Switching device

Technical field

The present invention relates to computing machine and areas of information technology, relate in particular to the switching device of on same mainboard, supporting different processor.

Background technology

As everyone knows, INTEL (Intel company) Xeon is two kinds of different encapsulated types with INTEL P4 processor, the processor of different class, and the former is used for SERVER mainboard (server master board), the latter then is used for common personal computer (Personal Computer, PC) mainboard.From performance with compare in price, the INTEL Xeon compares that INTEL P4 processor speed is faster, and performance is more stable, and every technical parameter index is also higher, and price is expensive more a lot of than INTEL P4 processor naturally certainly.Characteristics such as therefore the former (INTEL Xeon) mainly is used in company, on the users' of collective such as enterprise the server, relies on it at a high speed, and be stable, the processing lot of data of energy safety and stability allows most users simultaneously to its visit.Latter's (INTEL P4 processor) then is mainly used in PC, is applicable to the use of unique user.

Along with the arriving of networked information era, the online fan is more and more, and one " network main forces " constantly develop.Simultaneously, many network fans only do not land certain website and obtain the little by little information of oneself of information or issue being satisfied with, and they wish to have the website of oneself.The solution of individual application's domain names success this problem, a lot of people have had one's own website, they have the webpage of oneself, the computer of own original usefulness is used for doing server, the resource sharing of oneself is come out, other user can be visited, obtain resource.Calling party is many, and new problem is following.Because the limitation of machines configurations, PC is used for doing server and does not satisfy the visit of accepting a large number of users simultaneously, and unstable properties, and when having a lot of users that it is conducted interviews especially simultaneously, it is slack-off to be easy to machine speed to occur, phenomenons such as deadlock.If system is all changed, concerning the personal user, economic pressures are very big.

In addition, and the general networking system comprises a plurality of servers, if all use Xeon on each server master board, and some unessential server do not need to satisfy the visit of a large number of users and dispose Xeon, then causes system cost to increase.

Can on identical mainboard, performance of processors have determined most system performance, only change processor on existing mainboard, and the performance of system is improved or system cost decline, and this is a problem to be solved in the present invention.

Summary of the invention

The problem that the present invention solves provides a kind of switching device, and the conversion that solves between PC processor and the processor-server is used.

For addressing the above problem, the conversion that switching device of the present invention is used between PC processor and the processor-server is used, and comprising:

Substrate is printed circuit board (PCB);

First socket is arranged on the substrate, and PC processor or be electrically connected with processor installation position on the PC mainboard is used to peg graft;

Second socket is arranged on the substrate, and processor-server or be electrically connected with processor installation position on the server master board is used to peg graft;

First and second socket has respectively and PC processor and the corresponding signal pins of processor-server, wherein grounding pin, Front Side Bus pin, CPU HOST pin, power pins and the power management pin correspondence between two sockets is electrically connected, and this CPU HOST pin is used for being connected with south bridge;

Phase-locked loop circuit, shared and be connected with first and second socket respectively by first and second socket, be used for handling VCCA, VSSA and the VCCIOPLL signal of processor, for PC processor and processor-server provide frequency multiplication, wherein VCCA refers to inner phaselocked loop insulating power supply signal, and VSSA refers to that signal and VCCIOPLL refer to inner phaselocked loop processor system bus insulating power supply signal to inner phaselocked loop isolator;

The GTLREF signal processing circuit, have two these signal processing circuits dispose respectively to and be connected respectively to first and second socket, be used to reduce the interference of processor, wherein GTLREF refers to reference voltage;

The BR signal processing circuit, configuration is given and is connected to second socket, is used for the impedance of match server processor bus request signal, and wherein BR refers to bus request;

Power supply processing circuit is used for the power supply signal to the processor power supply is carried out the filtering energy storage and power supply signal is flowed to first and second socket.

Compared with prior art, the present invention has the following advantages:

Can be implemented in the PC processor that uses high performance processor-server on the common PC mainboard and on server master board, use low price simultaneously; Simple to operate, easy to use; Peripheral circuit is few, and cost is low, easily realizes.

Description of drawings

Fig. 1 is the entire block diagram of switching device of the present invention.

Fig. 2 is the circuit diagram of the specific embodiment of phase-locked loop circuit.

Fig. 3 is the circuit diagram of the specific embodiment of GTLREF signal processing circuit.

Fig. 4 is the circuit diagram of the specific embodiment of cpu test signal processing circuit.

Fig. 5 is the circuit diagram of the specific embodiment of power supply processing circuit.

Fig. 6 is the circuit diagram of BR signal processing circuit specific embodiment.

Fig. 7 a to Fig. 7 d is the pin synoptic diagram of first socket.

Fig. 8 a to Fig. 8 f is the pin synoptic diagram of second socket.

Fig. 9 is the use synoptic diagram that the PC mainboard uses processor-server.

Figure 10 is the use synoptic diagram that server master board uses the PC processor.

Embodiment

In the present embodiment, processor-server refers to INTEL (Intel company) Xeon, and its packing forms is 604PIN FC-MPGA-2P or 603PIN INT3, and the packing forms of INTEL P4 (Pentium 4) processor is 478PIN FC-PGA.Introduce concrete switching device scheme with the example that is converted to of 604PIN FC-MPGA-2P packing forms and 478PIN FC-PGA packing forms here.

A kind of switching device, the conversion that is used between PC processor and the processor-server is used, and comprising:

Substrate 1 is printed circuit board (PCB);

First socket 2 is arranged on the substrate 1, and PC processor or be electrically connected with processor installation position on the PC mainboard is used to peg graft;

Second socket 3 is arranged on the substrate 1, and processor-server or be electrically connected with processor installation position on the server master board is used to peg graft;

First and

second socket

2,3 has respectively and PC processor and the corresponding signal pins of processor-server, wherein grounding pin 41, Front Side Bus pin 42, CPU HOST pin 43, power pins 45 and power management pin 44 correspondences between two sockets are electrically connected, and this CPU HOST pin 43 is used for being connected with south bridge;

Power supply processing circuit 51 is used for carrying out the filtering energy storage to the power supply signal of processor power supply;

Phase-locked loop circuit 52, be used for handling VCCA, VSSA and the VCCIOPLL signal of processor, for PC processor and processor-server provide frequency multiplication, wherein VCCA refers to inner phaselocked loop insulating power supply signal, VSSA refers to that signal and VCCIOPLL refer to inner phaselocked loop processor system bus insulating power supply signal, first and

second socket

2,3 shared phase-locked loop circuits 52 in the present embodiment to inner phaselocked loop isolator;

BR (Bus Request, bus request) signal processing circuit 53 is used for the impedance of match server processor bus request signal;

GTLREF

signal processing circuit

54,55 is used to reduce the interference of processor, and wherein GTLRE refers to reference voltage, is used to judge that a signal is logical zero or logical one; And

In addition, described switching device also comprises cpu test

signal processing circuit

56,57, the impedance that is used to mate the cpu test signal.First and

second socket

2,3 is arranged on the not ipsilateral of substrate 1.

Please refer to shown in Fig. 2, Fig. 7 a-7d (the pin synoptic diagram of first socket of the PC processor that is used to peg graft), Fig. 8 a-8f (the pin synoptic diagram of second socket of the processor-server that is used to peg graft), in order to guarantee PC processor or processor-server energy normal and stable operation, VCCA, VSSA and VCCIOPLL signal are (specifically referring to the AD20 among Fig. 7 b, AD22 and AE23 pin; AB4 among Fig. 8 b, AA5 and AD4 pin) can not directly draw (peripheral circuit that has comprised these three signals on the mainboard) from PC mainboard or server master board.And on switching device, adopt phase-locked loop circuit 52 separately these several signals to be handled.

The physical circuit of phase-locked loop circuit 52 (specifically referring to Fig. 2) is: power pins (VCCP) is connected in series with the VCCA pin via resistance R 5 and inductance L 1; Power pins is connected in series with the VCCIOPLL pin via resistance R 6 and inductance L 2; Two capacitor C T1 in parallel and C17 between VCCA pin and VSSA pin; VSSA pin two capacitor C T2 in parallel and C19 with the VCCIOPLL pin; Wherein, R5, R6 are 0 ohm+5%; L1, L2 are 4.7UH; CT1, CT2 are 33UF/10V; C17, C19 are 1UF/10V.

Please in conjunction with shown in reference Fig. 3,7b and the 8b, the physical circuit of GTLREF

signal processing circuit

54,55 is each GTLREF (GTLREF0 (F20 pins among Fig. 7 b, W23 pin among Fig. 8 b), GTLREF1 (the AA21 pin among Fig. 7 b, W9 pin among Fig. 8 b), GTLREF2 (the F6 pin among Fig. 7 b, F23 pin among Fig. 8 b), GTLREF3 (the AA6 pin among Fig. 7 b, F9 pin among Fig. 8 b)) be in series with electric capacity (C18, C20, C21, C220) between signal pins and ground, this electric capacity (C18, C20, C21, C220) is 220PF/50V.Because of series capacitance, thus can filter high-frequency impulse in the signal, thus reduce high frequency interference.

Please in conjunction with shown in reference Fig. 4 and the 8b, the physical circuit of cpu test

signal processing circuit

56,57 is to be in series with resistance R N between cpu test signal pins (TESTHI0, TESTHI1, TESTHI2, TESTHI3) and power pins, RN is 51+5% ohm, with the impedance of coupling cpu test signal.Which pin designing requirement (CPU supplier provides) according to processor-server and PC processor need to judge whether impedance matching, connects.Processor-server in the present embodiment is that the packing forms of Intel company is that the processor of 604PIN FC-MPGA-2P or 603PIN INT3 needs cpu test signal processing circuit 56.

The power supply of coming from PC mainboard or server master board has passed through several interfaces and one section long transmission line and has just arrived at last the processor-server or PC processor internal circuit on the switching device.Power supply on the switching device can be normally stable gives processor-server or the power supply of PC processor in order to guarantee to arrive, and is necessary to add several big electrochemical capacitors to eliminate spike and the burr among the VCCP (cpu power) on switching device.

Because when designing originally, added a certain amount of decoupling capacitor on the mainboard according to designing requirement (to power unit of processor power supply) around PC mainboard or server master board processor installation position.So the quantity of electrochemical capacitor can the desired part that saves of designing requirement on switching device.Please in conjunction with shown in reference Fig. 5,7b and the 8b, like this, the physical circuit of power supply processing circuit is to be parallel with 6 electric capacity between power pins and ground, and each electric capacity is 820UF/2.5V.In the present embodiment, in parallel with electric capacity again after first and

second socket

2,3 all power pins (VCCP) connect.

Common PC mainboard is not supported the multichannel processor, therefore will be on conversion equipment to the BR1 of processor-server, and BR2 and BR3 signal are done corresponding processing.In conversion equipment, to have selected BR1, BR2 and BR3 signal directly add moves power pins to reach the internal driving coupling to these three signals on the 49.9+1% Ohmage.Please in conjunction with shown in reference Fig. 6 and the 8b, the physical circuit of BR signal processing circuit 53 is to be in series with resistance between each BR signal pins (BR1, BR2 and BR3, the D10 among Fig. 8 b, E11 and F12 pin) and power pins, and this resistance is 49.9+1% ohm.

The PC processor refers to that the packing forms of Intel company is the Pentium 4 processor of 478PIN FC-PGA in the present embodiment, and processor-server refers to that the packing forms of Intel company is the processor of 604PINFC-MPGA-2P or 603PIN INT3.

Please refer to shown in Fig. 9,10, in use, first and

second socket

2,3 adopts on plugs and the PC mainboard or the processor installation position on the server master board is electrically connected.

Please refer to shown in Figure 9ly, be example with PC mainboard 8 when reality is used: 7, one of double end pin type plugs by a 478PIN insert on 478PIN first socket 2 of switching device, and the other end is inserted into the processor installation position on the PC mainboard 8.Processor-server 6 is inserted on 604PIN second socket 3 of switching device, and installs fan.Like this, just can on common PC mainboard, use the INTEL processor-server.

Please refer to shown in Figure 10, equally, if want on server master board 11, to use common PC processor 9, with the double end pin type plug 10 of a 604PIN, one end inserts on 604PIN second socket 3 of switching device, and the other end is inserted into the processor installation position on the server master board 11.INTEL P4 processor is inserted on first socket 2 of 478PIN of switching device, just can on server master board 11, uses common PC processor 9.

Consider that from structure for cpu fan can correctly be installed, if use server master board, the side that is provided with second socket 3 at substrate 1 does not need to weld fan base.And if use the PC mainboard, then do not need to weld fan base in the side that substrate 1 is provided with first socket 2.

In sum, switching device of the present invention:

Claims

1. a switching device is used for the conversion use between PC processor and the processor-server, and comprising: substrate is printed circuit board (PCB);

2. switching device as claimed in claim 1 is characterized in that, first and second socket is arranged on the not ipsilateral of substrate.

3. switching device as claimed in claim 1 is characterized in that, the physical circuit of phase-locked loop circuit is: power pins is connected in series with the VCCA pin via resistance R 5 and inductance L 1; Power pins is connected in series with the VCCIOPLL pin via resistance R 6 and inductance L 2; Two capacitor C T1 in parallel and C17 between VCCA pin and VSSA pin; VSSA pin two capacitor C T2 in parallel and C19 with the VCCIOPLL pin; Wherein, R5, R6 are 0 ohm ± 5%; L1, L2 are 4.7UH; CT1, CT2 are 33UF/10V; C17, C19 are 1UF/10V.

4. switching device as claimed in claim 1, it is characterized in that described switching device also comprises the cpu test signal processing circuit, be used to mate the impedance of cpu test signal, physical circuit is to be in series with resistance R N between cpu test signal pins and power pins, and RN is 51 ± 5% ohm.

5. switching device as claimed in claim 1 is characterized in that, the physical circuit of GTLREF signal processing circuit is to be in series with electric capacity between each GTLREF signal pins and ground, and this electric capacity is 220PF/50V.

6. switching device as claimed in claim 1 is characterized in that, the physical circuit of BR signal processing circuit is to be in series with resistance between each BR signal pins and ground, and this resistance is 49.9 ± 1% ohm.

7. switching device as claimed in claim 1 is characterized in that, the physical circuit of power supply processing circuit is to be parallel with 6 electric capacity between power pins and ground, and each electric capacity is 820UF/2.5V.

8. switching device as claimed in claim 1, it is characterized in that, the PC processor refers to that the packing forms of Intel company is the Pentium 4 processor of 478PIN FC-PGA, and processor-server refers to that the packing forms of Intel company is the processor of 604PIN FC-MPGA-2P or 603PIN INT3.

9. switching device as claimed in claim 1 is characterized in that, first and second socket adopts on plug and the PC mainboard or the processor installation position on the server master board is electrically connected.