PC Will Not Boot

Aysedasi

Aysedasi

Member
I've had my pc for barely a week and it has been absolutely fine. This morning I've gone to switch it on and it won't boot. It starts and then turns itself off again after 2-3 seconds and then does this constantly unless I switch it off at the rear. I can see nothing loose inside. I have reseated then RAM modules but nothing different happens. HELP!

 
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TonyCarter

VALUED CONTRIBUTOR
Can you post your full spec from your account page please, just so we know what components we're working with.

Also, are there any fault codes/Q-LEDs shown on the motherboard?
 
Aysedasi

Aysedasi

Member
Case
CORSAIR 3500X ARGB TEMPERED GLASS MID-TOWER (BLACK)
Processor (CPU)
Intel® Core™ i9 24-Core Processor i9-14900KF (Up to 6.0GHz) 36MB Cache
Motherboard
ASUS® PRIME Z790-P (LGA1700, DDR5, PCIe 5.0)
Memory (RAM)
32GB Corsair VENGEANCE DDR5 6000MHz (2 x 16GB)
Graphics Card
16GB ZOTAC GEFORCE RTX 5080 SOLID - HDMI, 3 x DP
1st M.2 SSD Drive
2TB SOLIDIGM P41+ GEN 4 M.2 NVMe PCIe SSD (up to 4125MB/sR, 3325MB/sW)
DVD/BLU-RAY Drive
NOT REQUIRED
Power Supply
CORSAIR 850W RMx SERIES™ MODULAR 80 PLUS® GOLD, ULTRA QUIET
down_right_arrow.gif
Change to: CORSAIR 850W RMx SERIES™ ATX 3.1, MODULAR, CYBENETICS GOLD
Power Cable
1 x 1.5 Metre UK Power Cable (Kettle Lead, 1.0mm Core)
Processor Cooling
PCS FrostFlow 240 Series ARGB High Performance Liquid Cooler
Thermal Paste
STANDARD THERMAL PASTE FOR SUFFICIENT COOLING
Extra Case Fans
1 x 120mm PCS Black Case Fan
Sound Card
ONBOARD 6 CHANNEL (5.1) HIGH DEF AUDIO (AS STANDARD)
Network Card
ONBOARD LAN PORT
Wireless Network Card
WIRELESS INTEL® Wi-Fi 6E AX210 2,400Mbps/5GHz, 300Mbps/2.4GHz PCI-E CARD + BT 5.0
USB/Thunderbolt Options
MIN. 2 x USB 3.0 & 2 x USB 2.0 PORTS @ BACK PANEL + MIN. 2 FRONT PORTS
Operating System
Windows 11 Home 64 Bit - inc. Single Licence
Operating System Language
United Kingdom - English Language
Windows Recovery Media
Windows 10/11 Multi-Language Recovery Image - Unlimited Downloads from Online Account
Office Software
FREE 30 Day Trial of Microsoft 365® (Operating System Required)
Anti-Virus
Norton 360 inc. Game Optimizer - Free 90 Day License
Browser
Microsoft® Edge
Warranty
3 Year Silver Warranty (1 Year Collect & Return, 1 Year Parts, 3 Year Labour)
Delivery
STANDARD INSURED DELIVERY TO UK MAINLAND (MON-FRI)
Build Time
Standard Build - Approximately 5 to 7 working days
Welcome Book
PCSpecialist Welcome Book
 
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Aysedasi

Aysedasi

Member
Unexpectedly, as I booted it again to look for lights, it has just booted into safe mode. This is after at least 30 or 40 attempts. I can't see any lights on the motherboard.
 
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TonyCarter

VALUED CONTRIBUTOR
You need to edit your config post to remove your Windows licence code (so no-one steals it).

But from that BIOS page, the first thing I've noticed is that XMP is not enabled, so your PC will be running its RAM at 4800MHz instead of the 6000MHz that the kit is capable of.

You can change that, and give it another try, but without the error codes it's a matter of checking everything is firmly installed (RAM, power cable, GPU, etc.). But I'm not sure if that motherboard or cooler is really suitable for a volcano of a 14900.

Here's more about the error code system on your motherboard. That motherboard uses Q-LED Core, which flashed the power light in different patterns to tell you what the issue is.
 
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Aysedasi

Aysedasi

Member
Post edited.

How do I enable XMP? (Edit -I see this now).

I'm worried about the comments about the motherboard and cooler as I bought this system brand new from PCSpecialist.....
 
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TonyCarter

VALUED CONTRIBUTOR
Aysedasi said:
Post edited.

How do I enable XMP? (Edit -I see this now).

I'm worried about the comments about the motherboard and cooler as I bought this system brand new from PCSpecialist.....
Click to expand...
Was it a custom build, or a pre-built?

The pre-builts, and some of the suggestions from the PCS sales people, tend to cater for what the computer needs to run on the day it was purchased, and what will physically fit based on manufacturers published marketing blurb

Whereas the volunteers on the forum take a more holistic view and read reviews of each of the components to understand what the real figures are, and build in headroom for 7-10 years of life/upgrades.
 
Aysedasi

Aysedasi

Member
Having exited safe mode - there being nothing else I could do, the pc has booted properly. Had it done this this morning when I switched it on, I'd have been none the wiser. I'm just wondering what else, if anything, i ought to do, other than raise the issues I've had today with PCEssentials?
 
Aysedasi

Aysedasi

Member
TonyCarter said:
Was it a custom build, or a pre-built?

The pre-builts, and some of the suggestions from the PCS sales people, tend to cater for what the computer needs to run on the day it was purchased, and what will physically fit based on manufacturers published marketing blurb

Whereas the volunteers on the forum take a more holistic view and read reviews of each of the components to understand what the real figures are, and build in headroom for 7-10 years of life/upgrades.
Click to expand...
Absolutely understood. Whilst I'm not quite a novice, I'm not that far removed, so while I looked at the components, when I bought it, I didn't do so with any kind of expert eye.
 
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TonyCarter

VALUED CONTRIBUTOR
Aysedasi said:
Having exited safe mode - there being nothing else I could do, the pc has booted properly. Had it done this this morning when I switched it on, I'd have been none the wiser. I'm just wondering what else, if anything, i ought to do, other than raise the issues I've had today with PCEssentials?
Click to expand...
If there's no current issue with it, I'm not sure what you'd tell PCSpecialist about...plus they're probably closed until Tuesday anyway...so it will give you a few more days to see how it's running.
 
Martinr36

Martinr36

MOST VALUED CONTRIBUTOR
TonyCarter said:
It's almost like PCSpecialist is trying to dump all their stock of 14900 CPUs as no-one wants them!
Click to expand...
Just so the OP gets an idea of what folk are on about

Intel 13th and 14th Gen confirmed defective

So there's been a lot of upset gathering steam on the inter webs with intermittent games crashes on Intel 13th and 14th gen. Workarounds range from underclocking to disabling ecores. BUT, there are a lot of people finding that simply disabling hyperthreading is a proper solution. The findings...
www.pcspecialist.co.uk www.pcspecialist.co.uk
 
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