In case of use of a underwritten material as the guide to action, the author means precise performance of the reader that he is going to to make, that can receive and whether it is necessary for him in general.

Part the first. Brief. For those who understands nothing, but wants and is not afraid.

The main moments - numbering of lead-out of the processor.

Рис.1. Socket370 - нумерация, сигналы, вид со стороны ножек процессора.

I.e., to receive " correct arrangement " (for readout of number of a leg), is necessary to turn the processor (or a card / adapter) legs to itself (details downwards for a card / adapter), and two "cut off" corners (key) to arrange at the left. Then the left bottom corner will be the beginning (absent leg A1), on a vertical - letters from A up to AN, across - numbers from 1 up to 37.

The main moments - types of sockets Socket370 (PPGA / FCPGA / FCPGA2).

PPGA (Plastic Pin Grid Array).

Processors with socket PPGA have the characteristic plastic case with the metal cover closing a crystal. All processors Celeron on nucleus Mendocino (under them he and was developed) with frequency 300-533MHz have it. Also with him have been compatible (i.e. the very first processors Celeron on nucleus Coppermine 533/566MHz with a voltage of a power supply 1.5V (in spite of the fact that they are made in case FCPGA) will correctly work without any remaking).

FCPGA (Flip-Chip Pin Grid Array)

Has the characteristic plastic green case with an open crystal. All processors Celeron on nucleus Coppermine with frequency 533A-1100MHz and Pentium III on nucleus Coppermine 500-1133MHz have it.

FCPGA2 (Flip-Chip Pin Grid Array 2)

Same, as well as FCPGA, only the crystal is closed by a copper cover (heat sink). All processors Celeron on nucleus Tualatin with frequency 1000A-1400MHz (on sale appeared and 900/950MHz though in official documents such are not mentioned) and Pentium III on nucleus Tualatin 1000-1466MHz have it. Also in such execution{performance} (FCPGA2, i.e. by and large FCPGA with copper sheet, and the same distributing, as at FCPGA) met rare Pentium III on nucleus Coppermine 933-1133MHz and Celeron on nucleus Coppermine frequency 900-1000MHz.

Remaking.

Case the first, the most simple - remaking PPGA for support FCPGA of processors Celeron Coppermine 533-1100MHz).

(Для поддержки Pentium III Coppermine есть некоторые тонкости - см. раздел для "интересующихся" и "продвинутых")

(For support Pentium III Coppermine there are some subtleties - see section for "were interested" и "advanced").
For that that has earned processor with Coppermine nucleus in old PPGA a motherboard (adapter) it is necessary to make only two actions - to isolate a leg of processor AM2 (unsolder, to break out, etc.) and to connect the crosspiece of leg X4 and AH4 (to solder the crosspiece on a motherboard, an adapter or accurately to roll up a delay on the processor, that, the truth, is essentially more difficult).

Рис.2. Переделка PPGA в FCPGA.

Case of the second, remaking of FCPGA-card/adapters for support of FCPGA2-processors Celeron and Pentium III on nucleus Tualatin.

In the given section, we shall consider the most simple case remaking under Tualatin processor - on FCPGA it is necessary to establish a card / adapter Tualatin, i.e. then other processors (for example, Coppermine) there will not be inserted. If there is a desire to receive " a universal socket " - see sections see section for "were interested" and "advanced".
So, for remaking it is necessary - to isolate pinout AJ3 and AN3 (unsolder from a socket, to break out on the processor to put on isolator, etc.), to short-circuit among themselves G35 and G37, and also AM34 and AK36/AL37 (see fig.).

Рис.3. Переделка FCPGA в FCPGA2.

Except for these simple actions there is one difficult moment - pinout AK4. She, on the one side, needs to be isolated from a socket, on the other side, to submit on her voltage Vtt (easier - from the nearest leg AN11). Here it is possible to act differently: accurately to drill contact AK4 and then to lead there the crosspiece from AN11, to put on on AK4 isolator, having inserted in him the crosspiece from AN11, etc. If not it is a pity the processor (or a leg already break;) it is possible to draw a track a special current-carrying pencil (or such as that). Here - business of imagination of everyone, the main thing - confidently to isolate AK4 from a socket (since "ground" there is initially dissolved, i.e. "0"), having submitted thus on him the necessary voltage (i.e. there should be "1").

Case the third, remaking of cards / adapters PPGA for support FCPGA2.

The given case can have many subtleties therefore can demand more detailed studying (see section for "were interested" and "advanced"). In the most simple case - it is necessary is simply banal to repeat the above described remaking in PPGA-> FCPGA, and then FCPGA-> FCPGA2.

Part the second.
With explanatories.
For those who is not too abrupt, but wants to understand and understand.
Part the third.
Detailed.
For those who not bad understands and wants to understand all subtleties.
Part the fourth.
The basic mistakes and recommendations