AFFECT OF number of SATA CABLES in choice of mobo and psu

not really. you do want a minimum amount (normally 4 or more)of em but other than that there are other better reasons to select a motherboard. things like socket/cpu support memory compatibility and motherboard build quality.
selecting a psu depends on what gfx card or cards i would be using and what upgrade path i may use...
 
You need 2 minimum.
1 for optical drive (DVD burner) and 1 for hard disk drive.

How many SATA devices will you need?

You can also add PCI-cards with extra SATA ports if you run out of them on the motherboard.
 

divJ

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can this mobo
https://www.flipkart.com/asus-m5a78l-m-le-motherboard/p/itmd4g9hbnvnyv3q?pid=mbdd4g9gusagwzrd&ref=963596a3-c825-4991-9afc-ab171a6d771a&_l=XTe1Vkl8gah8KMLxzNRZOQ--&_r=ScwlGk8+i7MLVv2Gyc+0ww--

work with
https://www.flipkart.com/corsair-cmpsu-500cxv2uk-500-watts-psu/p/itmd5xz45f8cnrhg?pid=psud5xz4ceuxm4gh&ref=963596a3-c825-4991-9afc-ab171a6d771a&_l=9tcuJ5csXe0PJMPzEtQVzQ--&_r=ScwlGk8+i7MLVv2Gyc+0ww--

https://www.flipkart.com/msi-amd-ati-r6770-md1gd5-1-gb-gddr5-graphics-card/p/itmd7yd7ggasfxhj?pid=grcd7yczjahxtv8n&ref=963596a3-c825-4991-9afc-ab171a6d771a&_l=0rY0ua+NP6m70NiIj+eU2Q--&_r=ScwlGk8+i7MLVv2Gyc+0ww--

https://www.flipkart.com/corsair-vengeance-ddr3-4-gb-1-x-gb-pc-ram-cmz4gx3m1a1600c9/p/itmd2rypbx4eehaf?pid=ramd2rypmvwcek6e&ref=963596a3-c825-4991-9afc-ab171a6d771a&_l=e1j4Lj1+2uiLWWBljI_KoQ--&_r=ScwlGk8+i7MLVv2Gyc+0ww--

and

https://www.flipkart.com/amd-3-6-ghz-am3-fx4100-processor/p/itmd54hrgmx6xwhn?pid=psrd54hrfdky69xh&ref=963596a3-c825-4991-9afc-ab171a6d771a&_l=iyegeYf8ELgg6BozHsp4Bw--&_r=ScwlGk8+i7MLVv2Gyc+0ww--

??
 
6 SATA ports on motherboard. 5 SATA power cables on PSU - but that's not a problem.

You only have 1 stick of RAM - 2x 2GB kit is a better performance option.
That FX4100 is considered 'weak' for a gaming CPU.

This is a gaming build, right?
 

divJ

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can ya tell me the calculation for the power supply needed ? how do u know 430w would be enough ?