No, you cannot connect an 8-pin PSU to a 16-pin CPU motherboard.

RebellCraft
Junior Member

04-14-2023, 12:04 AM

Hello, I am going to build a system with ASRock B650 PG Lightning and ryzen 5 7600. I think an old 600w Be quiet system power 9 should be fine, but I noticed the motherboard has 16 pins for the CPU and the PSU has only 8 pins. Taking into consideration the CPU, will it be a problem if I run the board with only 8 pins on the CPU? The PSU was used with ASUS TUF b450 plus gaming and r5 3600 before and hasn't had any issues, but the old board has only 8 connectors. If it it is a problem could you recommend any other alternatives which are 8 pin only for CPU, preferably ATX format. I am looking to use my old PSU and GPU so I can save some money, there are no plans for going to higher wattage cpu for the forseeable future, the machine will not be used for any "productivity" work like video editing.

RebellCraft

04-14-2023, 12:04 AM #1

Yearmix
Junior Member

04-22-2023, 07:23 AM

You don't require the additional eight pins for the Ryzen 5 7600. Everything should work fine.

Yearmix

04-22-2023, 07:23 AM #2

You don't require the additional eight pins for the Ryzen 5 7600. Everything should work fine.

catrkill
Member

126

04-22-2023, 11:18 AM

Thank you! It's true that leaving those eight pins unpopulated might lead to stability problems in certain situations.

catrkill

04-22-2023, 11:18 AM #3

Thank you! It's true that leaving those eight pins unpopulated might lead to stability problems in certain situations.

helloweirdguy7
Junior Member

04-22-2023, 12:09 PM

Stability problems may arise with top-tier processors when they're pushed beyond their limits. The R5 7600 should handle it without issues.

helloweirdguy7

04-22-2023, 12:09 PM #4

Stability problems may arise with top-tier processors when they're pushed beyond their limits. The R5 7600 should handle it without issues.

DlNKLEBOY
Member

176

04-22-2023, 07:34 PM

It's typically required only during intense overclocking alongside LN2 when generating a large amount of power.

DlNKLEBOY

04-22-2023, 07:34 PM #5

It's typically required only during intense overclocking alongside LN2 when generating a large amount of power.

fruitypie121
Member

04-22-2023, 11:31 PM

Hey team! I thought it was similar, but I wanted to check it out.

fruitypie121

04-22-2023, 11:31 PM #6

Hey team! I thought it was similar, but I wanted to check it out.

ravakkko
Member

150

04-25-2023, 01:46 AM

Only the CPU needs extra power beyond what the 8-pin can handle. The Ryzen 7600 draws 65 watts, while the 8-pin supports up to 226 watts continuously. I only use one connector for my 7700x and haven’t faced any stability problems.

ravakkko

04-25-2023, 01:46 AM #7

Way2Meke
Member

235

04-26-2023, 06:42 PM

Actually, unless you're pushing the system too hard, dual 8-pin CPUs likely aren't necessary. It should handle about 384W unless you're wrong. Updated September 30, 2024 by anirudthelinuxwIzard

Way2Meke

04-26-2023, 06:42 PM #8

Actually, unless you're pushing the system too hard, dual 8-pin CPUs likely aren't necessary. It should handle about 384W unless you're wrong. Updated September 30, 2024 by anirudthelinuxwIzard

Bigking
Member

154

05-14-2023, 09:38 PM

One 8-pin EPS connector can deliver 250-300 watts to a CPU. The 7600 model uses about 80 watts, but all cores running at full capacity brings the total up to roughly 120 watts when the CPU is overclocked to 5.3 GHz across all cores. High-end motherboards often include two EPS connectors for top processors, though lower-end models typically don’t require them.

Bigking

05-14-2023, 09:38 PM #9