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Replacing the fan in my psu

Pitou
By Pitou
in Power Supplies
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before i start note i already bought a new psu to go into my rig, i only want to replace the fan because id rather do that and have an emergency backup/testing psu than just toss the mf.

 

so i have the evga g1, the fan in it is going bad. I know most people just swap the 3 pin connector on the fan to the 2 pin connector that the psu board has. But in my research ive found that that psu doesnt supply enough power to the fan to drive the noctua fan. So because of this could i just drill a hole and plug the fan into an empty motherboard port, and set the fan to like 50-60% speed at all times in the bios and call it good?

Current: CPU: Intel i7-8700k. Mobo: Gigabyte - Z370 AORUS Gaming 5. RAM: 16gb G Skill Trident Z RGB. GPU: EVGA RTX 2070 Super.

 

First: CPU: AMD FX-8350 @4.5GHz. Mobo: Asus ROG crosshair V formula-Z. RAM: 8GB Patriot Viper XTreme. GPU: Asus Radeon 7950.

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Yes, just be careful when opening a PSU

 

I have opened every OEM PSU I have had go bad and harvested the fans out of them, why...not sure, but I have all kinds of fans for all sorts of situations lol

Workstation Laptop: Dell Precision 7540, Xeon E-2276M, 32gb DDR4, Quadro T2000 GPU, 4k display

Wifes Rig: ASRock B550m Riptide, Ryzen 5 5600X, Sapphire Nitro+ RX 6700 XT, 16gb (2x8) 3600mhz V-Color Skywalker RAM, ARESGAME AGS 850w PSU, 1tb WD Black SN750, 500gb Crucial m.2, DIYPC MA01-G case

My Rig: ASRock B450m Pro4, Ryzen 5 3600, ARESGAME River 5 CPU cooler, EVGA RTX 2060 KO, 16gb (2x8) 3600mhz TeamGroup T-Force RAM, ARESGAME AGV750w PSU, 1tb WD Black SN750 NVMe Win 10 boot drive, 3tb Hitachi 7200 RPM HDD, Fractal Design Focus G Mini custom painted.  

NVIDIA GeForce RTX 2060 video card benchmark result - AMD Ryzen 5 3600,ASRock B450M Pro4 (3dmark.com)

Daughter 1 Rig: ASrock B450 Pro4, Ryzen 7 1700 @ 4.2ghz all core 1.4vCore, AMD R9 Fury X w/ Swiftech KOMODO waterblock, Custom Loop 2x240mm + 1x120mm radiators in push/pull 16gb (2x8) Patriot Viper CL14 2666mhz RAM, Corsair HX850 PSU, 250gb Samsun 960 EVO NVMe Win 10 boot drive, 500gb Samsung 840 EVO SSD, 512GB TeamGroup MP30 M.2 SATA III SSD, SuperTalent 512gb SATA III SSD, CoolerMaster HAF XM Case. 

https://www.3dmark.com/3dm/37004594?

Daughter 2 Rig: ASUS B350-PRIME ATX, Ryzen 7 1700, Sapphire Nitro+ R9 Fury Tri-X, 16gb (2x8) 3200mhz V-Color Skywalker, ANTEC Earthwatts 750w PSU, MasterLiquid Lite 120 AIO cooler in Push/Pull config as rear exhaust, 250gb Samsung 850 Evo SSD, Patriot Burst 240gb SSD, Cougar MX330-X Case

 

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5 minutes ago, Tristerin said:

Yes, just be careful when opening a PSU

 

I have opened every OEM PSU I have had go bad and harvested the fans out of them, why...not sure, but I have all kinds of fans for all sorts of situations lol

Awesome ty, do you think 50-60% speed will be sufficient when under full load?

Current: CPU: Intel i7-8700k. Mobo: Gigabyte - Z370 AORUS Gaming 5. RAM: 16gb G Skill Trident Z RGB. GPU: EVGA RTX 2070 Super.

 

First: CPU: AMD FX-8350 @4.5GHz. Mobo: Asus ROG crosshair V formula-Z. RAM: 8GB Patriot Viper XTreme. GPU: Asus Radeon 7950.

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58 minutes ago, Pitou said:

Awesome ty, do you think 50-60% speed will be sufficient when under full load?

Id test the airflow coming out the exhaust of your new PSU while running under full load and try to match that "feeling" on my hand personally.  Im not sure so that's how I would gauge it

Workstation Laptop: Dell Precision 7540, Xeon E-2276M, 32gb DDR4, Quadro T2000 GPU, 4k display

Wifes Rig: ASRock B550m Riptide, Ryzen 5 5600X, Sapphire Nitro+ RX 6700 XT, 16gb (2x8) 3600mhz V-Color Skywalker RAM, ARESGAME AGS 850w PSU, 1tb WD Black SN750, 500gb Crucial m.2, DIYPC MA01-G case

My Rig: ASRock B450m Pro4, Ryzen 5 3600, ARESGAME River 5 CPU cooler, EVGA RTX 2060 KO, 16gb (2x8) 3600mhz TeamGroup T-Force RAM, ARESGAME AGV750w PSU, 1tb WD Black SN750 NVMe Win 10 boot drive, 3tb Hitachi 7200 RPM HDD, Fractal Design Focus G Mini custom painted.  

NVIDIA GeForce RTX 2060 video card benchmark result - AMD Ryzen 5 3600,ASRock B450M Pro4 (3dmark.com)

Daughter 1 Rig: ASrock B450 Pro4, Ryzen 7 1700 @ 4.2ghz all core 1.4vCore, AMD R9 Fury X w/ Swiftech KOMODO waterblock, Custom Loop 2x240mm + 1x120mm radiators in push/pull 16gb (2x8) Patriot Viper CL14 2666mhz RAM, Corsair HX850 PSU, 250gb Samsun 960 EVO NVMe Win 10 boot drive, 500gb Samsung 840 EVO SSD, 512GB TeamGroup MP30 M.2 SATA III SSD, SuperTalent 512gb SATA III SSD, CoolerMaster HAF XM Case. 

https://www.3dmark.com/3dm/37004594?

Daughter 2 Rig: ASUS B350-PRIME ATX, Ryzen 7 1700, Sapphire Nitro+ R9 Fury Tri-X, 16gb (2x8) 3200mhz V-Color Skywalker, ANTEC Earthwatts 750w PSU, MasterLiquid Lite 120 AIO cooler in Push/Pull config as rear exhaust, 250gb Samsung 850 Evo SSD, Patriot Burst 240gb SSD, Cougar MX330-X Case

 

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2 hours ago, Pitou said:

before i start note i already bought a new psu to go into my rig, i only want to replace the fan because id rather do that and have an emergency backup/testing psu than just toss the mf.

 

so i have the evga g1, the fan in it is going bad. I know most people just swap the 3 pin connector on the fan to the 2 pin connector that the psu board has. But in my research ive found that that psu doesnt supply enough power to the fan to drive the noctua fan. So because of this could i just drill a hole and plug the fan into an empty motherboard port, and set the fan to like 50-60% speed at all times in the bios and call it good?

Don't use a Noctua fan.

 

There's a reason Noctua like fans aren't used in power supplies

 

Use a fan with a high static pressure (mmH20).

 

Noctua's are low noise vs. CFM, but have shit for mmH20.  That's why they never show you that metric in their marketing.

 

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2 hours ago, jonnyGURU said:

Don't use a Noctua fan.

 

There's a reason Noctua like fans aren't used in power supplies

 

Use a fan with a high static pressure (mmH20).

 

Noctua's are low noise vs. CFM, but have shit for mmH20.  That's why they never show you that metric in their marketing.

 

what would be a good one? i got a couple nzxt case fans laying around

Current: CPU: Intel i7-8700k. Mobo: Gigabyte - Z370 AORUS Gaming 5. RAM: 16gb G Skill Trident Z RGB. GPU: EVGA RTX 2070 Super.

 

First: CPU: AMD FX-8350 @4.5GHz. Mobo: Asus ROG crosshair V formula-Z. RAM: 8GB Patriot Viper XTreme. GPU: Asus Radeon 7950.

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Depends on the NZXT fan.  The ones I know of are <1mm/H2O.  

 

The fan is a 135mm, right?  That means you can use a 140mm fan, but will have to drill out the mounting holes.

 

Look for something with an SP greater than 2mm/H2O that doesn't have to spin 3000 RPM to achieve that.  :D

 

Remember that a fan with a lower max RPM is going to also have a lower startup voltage.  The two kind of go hand in hand since higher speeds are achieved by having more windings, but more windings means the fan needs more power to spin.

 

Best solution is to find a dead PSU and just take the fan out of it since 8 out of 10 times, the PSU fan was engineered to provide adequate pressure.  It'll also have the diverter baffle properly fitted (unless you can get the one off the EVGA fan and reapply it to the replacement fan.)

 

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1 hour ago, Pitou said:

what would be a good one? i got a couple nzxt case fans laying around

Arctic P14 PWM PST CO

https://www.bequiet.com/en/casefans/723

https://www.bequiet.com/en/casefans/719

Interim 15 T200 OKF("F" intel processors are specifically archituctured for gaming) maybe upgrad to 13'900 | Peeralight cpu fan | Stryx Z690-A Wife(which is branded by ASUS and it's ROG label) | Thermotake 16x 8x2GO SODINM 2400mjz cl22 (2 of them with the mood lighting) | 980 EVO 1TB m.2 ssd card + Kensington 2TB SATA nvme + WD BLACK PRO ULTRA MAX 4TB GAMING DESTROYER HHD | Echa etc 3060 duel fan dissipator 12 GBi and Azrock with the radian 550 XT Tiachi | NEXT H510 Vit Klar Svart | Seasonice 600watts voeding(rated for 100.000 hours, running since 2010, ballpark estimate 8 hours a day which should make it good for 34 years) | Nocturna case fans | 0LED Duel moniter

 

New build in progress: Ryen™ 8 7700x3D with a copper pipe fan | Z60e-A | Kingstron RENEGATE 16x2 Go hyenix | Phantek 2 the thar mesh in front | lead lex black label psu + AsiaHorse białe/białe | 1080 Pro 8TB 15800MB/S NvMe(for gaming this increase fps and charging time, cooled by a M.2 slot with coolblock and additional thermopad) and faster 4000GB HHD | MAI GeForce GTX 2070 Ti and RTX 6800 | Corshair psu

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