Mining machine PCI

1. Your motherboard to support four graphics cards, generally can only support three
in addition, if your hard disk is m.2 SSD or U2 interface, inserting the fourth graphics card may occupy the hard disk's PCI bus, resulting in hard disk unreadable.

2. B250 itself supports the M2 interface. Although adding m2 to the feeder board is unnecessary, you can transfer the PCI X4 channel from m2 to the graphics card. mining only relies on GPU general-purpose computing, and has low performance requirements for hard disk and CPU
however, to play mining, it is recommended to buy a more efficient ant miner instead of a graphics card. The graphics card is only a general-purpose calculation, not a specific one. The ant miner has higher efficiency and lower power consumption.

3. 1. Because the bandwidth of the first x16 independent graphics card slot is provided by the CPU, while the second one is generally provided by the chipset (the highest X4 provided by the chipset); 2. Some of the bandwidth of the first x16 independent graphics card slot can be split (generally divided into X8 + x8), so that the bandwidth of the second graphics card slot is only X8. In fact, if two graphics cards are inserted at the same time, the bandwidth of the first graphics card slot is only X8 at this time; 3. Some chipsets or CPUs can provide bandwidth. At this time, the speed of the second, third... Graphics card slots may also be x16, depending on different chipsets; 4. Generally, only high-end and flagship chipset motherboards are allowed to split the PCI-E channel of CPU (such as Z170, x99, etc.). 5. If it's not a high-end chipset, the bandwidth of the second graphics card slot is at most X4

4.

PCI E on the motherboard is PCI-E 1x interface, not 16x

and you need a transfer card

5. The bandwidth of X1 doesn't even have 1GB, which is generally 500MB / s. even the first version of PCIe x161.1 has 8GB bandwidth. Playing games requires a lot of bandwidth, which is not enough. This connection is generally used for virtual coin miner, because pure mindless computing does not need to consume much bandwidth, while games and running points need to

6. The graphics card can be opened up to 4 channels at most. No matter how many PCI links are not supported, it must be on a professional server board. The system bus has a total of x16, which can be divided into X8 + X8 or X4 + X4 + X4 + x4, and can not be removed

7. I remember that MSI X58 BigBang has seven PCI-E x16
and four boards
in addition, it doesn't need the full-length x16
X1 PCI interface.

8. The driver of the graphics card has nothing to do with the motherboard. The d865pcd is not integrated with the graphics card
d865pcd integrates Realtek alc202 AC97 codec, also known as sound card
the sound card driver can use the following:
http://drivers.mydrivers.com/drivers/174-69625-Realtek-ALC100-ALC101-ALC200-ALC201-ALC201A-ALC202-ALC202A-ALC650-ALC655-ALC658

9. Because the mining algorithm is special, the mining efficiency of the graphics card has nothing to do with the interface bandwidth, and has nothing to do with whether there is a firefight or not (there can be several cards of different models)
the computing power depends on the ability of each card
if six cards of a machine are all of the same model, even if all the pcielx ports are in the mode of 6X1
of course, the graphics card has the function of high temperature automatic frequency rection, Multi card should pay attention to heat dissipation.