DigitalONE

thanks for your replies i found out the cause of this issue, it's the motherboard's system header, pin 2 is responsible for +12v and speed control, i can't use that pin because of the fan's high amperage, that's why i can't control the fan, but on the cpu header pin 4 is speed control, i didn't expect that the headers are different, i've added an image from the manual

Hello i bought a 1.74 amp delta fan and my motherboard supports 1 amp only, so i removed the red and black wires and connected it to the molex and the yellow and blue wires to the motherboard's system fan header, the fan works and i can see the fan's speed but can't control it's speed, neither through bios or fan control software, i thought the fan is bad, so i tried another pwm fan that is less than 1 amp using the same method and it did the same thing, so i connected that fan directly to the motherboard and pwm worked fine, if i disconnect the red and black wires from the fan header pwm doesn't work, anyone knows why this is happening?my mb is H81M-S2PV rev. 1.0

does any have any info about the msi b550 torpedo vrm?

which GPUs that don't work well with the Bitfenix Formula?

does it matter whether the pci-e cables are 18 or 16 awg for a rx vega ?

so a single rail psu without ocp is not a bad thing?

the rmx750 is a single rail psu, why does it have ocp on the 12v rail? https://www.tomshardware.com/reviews/corsair-rm750x-v2-psu,5585-6.html

i found out that there are two types of m12ii 750 evo, the old one on tweaktown has double ball bearing fan and all protections, the new one has fluid dynamic fan and less protections, they both have the same name m12ii 750 evo

fan is fdb https://seasonic.com/m12ii-evo the cm masterwatt for example is in the same tier with elite hold-up capacitor and it's ripple reaches 72mv@100% load while m12ii evo has japanese capacitors and 24mv@100% load https://translate.google.com/translate?hl=en&sl=tr&u=https://forum.donanimhaber.com/cooler-master-masterwatt-750-incelemesi-bronz-gorunumlu-gold--131862219&prev=search the performance and quality is different yet they both in the same tier?

the m12ii 750 evo has good ripple, voltage regulation, all protections and 2 hold-up japanese caps, why is it in tier b? https://www.tweaktown.com/reviews/5800/seasonic-m12ii-750w-evo-edition-750-watt-80-plus-bronze-psu-review/index5.html

is the seasonic m12ii 750 in tier b the old one or the evo?if it's the old one which tier is the m12ii 750 evo in?

techpowerup bitfenix formula 750 review shows the hold up time is below atx spec min., does this affect components if there are brown or blackouts, even if they are rare?

thanks, i'll buy the formula gold then

what problems?

i see bitfenix formula is higher than focus gold, should i buy the formula over the focus?