What is PCI-e

niko45

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Oct 1, 2014
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what are these
PCI-e x1
PCI-e x4
PCI-e x8
PCI-e x16....what are this on the MOBO...when i went to msi power supply calculater these things came and i saw when i increase them my power supply watts increases...can anyone help me with this???
 
Solution


Graphics cards use a x16 slot.
Depending on the slots used on the motherboard, these may run at PCI-E 3.0 x8 speeds or even PCI-E 2.0 x4 speed.
Where you do run at PCI-E 3.0 x8 speed (usually with two graphics cards), this does not limit performance of the cards.
This is not important for calculating power usage.
so i going to build a computer with
cpu-intel i7 4790k and the gpu-msi gtx 970 4gb twin frozer v
ram-corsair vengenece 8gb ddr 1600mgz
how much watts power supply i need
???
 
You need a supply rated at least 29A or 345W on the combined +12V rails.
A good quality 450W model would be enough, but I would recommend you choose 500W or higher.
Some suggestions:
Any XFX 550W supply
Rosewill Capstone 550
Antec HCG 520
Seasonic M12II 520
Seasonic G 550
 


Tiered PSU list:
http://www.tomshardware.com/forum/id-1804779/power-supply-unit-tier-list.html

Corsair VS series are tier 3.
You should choose something from tier 1, tier 2 class A or tier 2 class B.
 


Graphics cards use a x16 slot.
Depending on the slots used on the motherboard, these may run at PCI-E 3.0 x8 speeds or even PCI-E 2.0 x4 speed.
Where you do run at PCI-E 3.0 x8 speed (usually with two graphics cards), this does not limit performance of the cards.
This is not important for calculating power usage.
 
Solution