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CMOS Reset after every restart !

HI, i got this motherboard ( used ) ASUS-P5k-Premium. Everything is working fine but except whenever i restart my PC or Turn or or there is any Electricity Cut off. It says Set your CMOS on boot and in bios date automatically goes back to 2002.

I have the latest bios.
One thing i want to mention, this motherboard requires 8pin from psu connector but im only using 4 pins.

Is that the cause?
Thanks.

 

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Change your mobo CMOS battery

Remember kids, the only difference between screwing around and science is writing it down. - Adam Savage

 

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The 8-pin power the CPU only. I can't see how it would affect anything here since the CPU isn't drawing anywhere near the 75W the 4-pin can already provide. Off the top of my head I'd say you have a bad battery. There's a CR2032 somewhere near the CMOS that keeps the settings and clock running when you're not powered by the PSU. Like all batteries, this one goes out over time too. It's cheap AF to replace. Just replace it with the same type.

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15 minutes ago, revsilverspine said:

Change your mobo CMOS battery

I have the CMOS battery of ASUS P5K-V motherboard.

Will it work?

Ryzen 5 3600 | MSI B450 Tomahawk Max | Corsair Vengeance lpx 32gb 3600mhz | EVGA GeForce RTX 3080 FTW3 ULTRA GAMING | XPG Core Reactor 850w

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As long as it's a CR2032 3V battery, it'll work.

Remember kids, the only difference between screwing around and science is writing it down. - Adam Savage

 

PHOΞNIX Ryzen 5 1600 @ 3.75GHz | Corsair LPX 16Gb DDR4 @ 2933 | MSI B350 Tomahawk | Sapphire RX 480 Nitro+ 8Gb | Intel 535 120Gb | Western Digital WD5000AAKS x2 | Cooler Master HAF XB Evo | Corsair H80 + Corsair SP120 | Cooler Master 120mm AF | Corsair SP120 | Icy Box IB-172SK-B | OCZ CX500W | Acer GF246 24" + AOC <some model> 21.5" | Steelseries Apex 350 | Steelseries Diablo 3 | Steelseries Syberia RAW Prism | Corsair HS-1 | Akai AM-A1

D.VA coming soon™ xoxo

Sapphire Acer Aspire 1410 Celeron 743 | 3Gb DDR2-667 | 120Gb HDD | Windows 10 Home x32

Vault Tec Celeron 420 | 2Gb DDR2-667 | Storage pending | Open Media Vault

gh0st Asus K50IJ T3100 | 2Gb DDR2-667 | 40Gb HDD | Ubuntu 17.04

Diskord Apple MacBook A1181 Mid-2007 Core2Duo T7400 @2.16GHz | 4Gb DDR2-667 | 120Gb HDD | Windows 10 Pro x32

Firebird//Phoeniix FX-4320 | Gigabyte 990X-Gaming SLI | Asus GTS 450 | 16Gb DDR3-1600 | 2x Intel 535 250Gb | 4x 10Tb Western Digital Red | 600W Segotep custom refurb unit | Windows 10 Pro x64 // offisite backup and dad's PC

 

Saint Olms Apple iPhone 6 16Gb Gold

Archon Microsoft Lumia 640 LTE

Gulliver Nokia Lumia 1320

Werkfern Nokia Lumia 520

Hydromancer Acer Liquid Z220

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