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No post after switching CPUs

JaN0h4ck
By JaN0h4ck
in Troubleshooting
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Today i tried upgrading my CPU from a R5 3600 to a R9 5900X. After swapping my pc booted up, but I didn't get it to post. On the Q-LEDs the VGA (white) and boot (white) LEDs are static and I get the Error Code "02" which, according to the manual, means "ap initialization before microcode loading". My Motherboard is a ASUS ROG Strix X570 E-Gaming.
I have already tried: clearing CMOS, downgrading BIOS, re-upgrading BIOS, re-seating CPU, swapping to the old CPU (same error now).

 

Full Specs:
CPU: R5 3600 (/R9 5900X)
Mobo: ASUS ROG Strix X570 E-Gaming

RAM: 4x8 (32GB) at 3600

GPU: MSI RTX 2080 Super Gaming x Trio

Power Supply: BeQuiet 750W Straight Power11 80+ Gold

Cooling is Custom Water cooling for CPU and GPU

1x M.2 nvme ssd

3x hdds

Sorry for my bad english.

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https://linustechtips.com/topic/1392955-no-post-after-switching-cpus/
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After you clear CMOS, you have to let all the electricity left in there to bleed off. Let it sit for say, 10 mins after switching off from the PSU should do.

CPU: i7-2600K 4751MHz 1.44V (software) --> 1.47V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 103.3MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 2133MHz 10-11-11-30 CR2, custom: 2203MHz 10-11-10-26 CR1 tRFC:230 tREFI:14000) GPU: Asus GTX 1070 Dual (Super Jetstream vbios, +70(2025-2088MHz)/+400(8.8Gbps)) SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (150Hz max w/ DP, 121Hz max w/ HDMI) TN panel Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1

 

Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V core & cache, 50mV SA undervolt) GPU: GTX 1060 6GB Mobile (+80/+450, 1650MHz~1750MHz 0.78V~0.85V) RAM: 8+8GB DDR4-2400 18-17-17-39 2T Storage: HP EX920 1TB PCIe x4 M.2 SSD + Crucial MX500 1TB 2.5" SATA SSD, 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally, 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172) left outside Monitor: 1080p 126Hz IPS G-sync

 

Desktop benching:

Cinebench R15 Single thread:168 Multi-thread: 833 

SuperPi (v1.5 from Techpowerup, PI value output) 16K: 0.100s 1M: 8.255s 32M: 7m 45.93s

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2 hours ago, Jurrunio said:

After you clear CMOS, you have to let all the electricity left in there to bleed off. Let it sit for say, 10 mins after switching off from the PSU should do.

This did actually work! I posted after letting it sit and removing the pcie extension cable (although i doubt the pcie cable was part of the problem). I swapped to the new cpu after and now encountered the same problem again. I'm gonna let it sit overnight and try tommorow. Thanks for the help!

Sorry for my bad english.

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