RETRO-PC.BY

Наткнулся на ау.бай на такую планку. Ни разу таких не видел. Кто знает что это за зверь?

Наверное регистровая, судя по разводке от центрального чипа. Со снятым радиатором.

Наверно. С чипом ни разу не видел память

Вероятно FB-DIMM.

О, спасибо, @Max1024.
Да, FB-DIMM.
Узнал сегодня что-то новое для себя =)

Registered (Buffered) DIMM (R-DIMM) modules insert a buffer between the pins of the command and address buses on the DIMM and the memory chips. A high-capacity DIMM might have numerous memory chips, each of which must receive the memory address, and their combined input capacitance limits the speed at which the memory bus can operate. By redistributing the command and address signals within the R-DIMM, this allows more chips to be connected to the memory bus.[5] The cost is increased memory latency, as a result of one[citation needed] additional clock cycle required for the address to traverse the additional buffer. Early registered RAM modules were physically incompatible with unregistered RAM modules, but the two variants of SDRAM R-DIMMs are mechanically interchangeable, and some motherboards may support both types.[citation needed]

Load Reduced DIMM (LR-DIMM) modules are similar to R-DIMMs, but add a buffer to the data lines as well. In other words, LR-DIMMs buffer both control and data lines while keeping the parallel nature of all signals. As a result, LR-DIMMs provides large overall maximum memory capacities, while avoiding the performance and power consumption problems of FB-DIMMs, induced by the required conversion between serial and parallel signal forms.[5][6]

Fully Buffered DIMM (FB-DIMM) modules increase maximum memory capacities in large systems even more, using a more complex buffer chip to translate between the wide bus of standard SDRAM chips and a narrow, high-speed serial memory bus. In other words, all control, address and data transfers to FB-DIMMs are performed in a serial fashion, while the additional logic present on each FB-DIMM transforms serial inputs into parallel signals required to drive memory chips.[6] By reducing the number of pins required per memory bus, CPUs could support more memory buses, allowing higher total memory bandwidth and capacity. Unfortunately, the translation further increased memory latency, and the complex high-speed buffer chips used significant power and generated a lot of heat.

Both FB-DIMMs and LR-DIMMs are designed primarily to minimize the load that a memory module presents to the memory bus. They are not compatible with R-DIMMs, and motherboards that require them usually will not accept any other kind of memory modules.

Прикольно, что модули FB-DIMM соединены друг с другом последовательно (если их >1 в системе).

В миру FB-DIMM нужна только для Intel Skulltrail и больше не для чего.

Всем спасибо! Век живи, век учись!