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Computer stuck in a ON/OFF loop

Lanoi
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So when I press the power button, the computer turns on for 8 seconds and shuts itself off. Then repeats.

Bios version v5.41

I know that this CPU is compatible with this motherboard because I was running it for the past week.

Specs :

C2D E7500

HD 4870

6 GB DDR2 (4 DIMMS, 2X2, 2X1)

Delta OEM 460W

Windows 7 Ultimate

2 HDDS in Raid 0.

What I've tried : changing out CPUs, booting with 1 DIMM, swapping PSUs

specs in profile, video production manager for KuruHS

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Did you do the RAID setup before or after this started happening?

Main rig on profile

Zephyrus - Windows 7 side rig

Spoiler

AMD Phenom II X6 1055T (undervolted to 1.26v w/ CM 212 EVO), 1x8GB ADATA XPG V1.0 (1600MHz CL9), Asus M4A77TD, 240GB Kingston UV400, 1TB Toshiba 2.5", EVGA GTX 960 SC, Enthoo Pro, Corsair CX750M, Windows 7 Ultimate 64-bit

Mac Mini (Late 2014)

Spoiler

Intel Core i5 4278U, 8GB RAM, 250GB Samsung 840 EVO, macOS Monterey, using it with a ViewSonic VX2748

Consoles: Softmodded 1.4 Xbox w/ 500GB HDD, Xbox 360 Elite 120GB Falcon, XB1X 1TB, PS1 1001, PS2 Slim 70000 w/ FreeMcBoot, PS4 Pro 7015B 2TB

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Did you do the RAID setup before or after this started happening?

Before.

specs in profile, video production manager for KuruHS

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Before

How long before?

Main rig on profile

Zephyrus - Windows 7 side rig

Spoiler

AMD Phenom II X6 1055T (undervolted to 1.26v w/ CM 212 EVO), 1x8GB ADATA XPG V1.0 (1600MHz CL9), Asus M4A77TD, 240GB Kingston UV400, 1TB Toshiba 2.5", EVGA GTX 960 SC, Enthoo Pro, Corsair CX750M, Windows 7 Ultimate 64-bit

Mac Mini (Late 2014)

Spoiler

Intel Core i5 4278U, 8GB RAM, 250GB Samsung 840 EVO, macOS Monterey, using it with a ViewSonic VX2748

Consoles: Softmodded 1.4 Xbox w/ 500GB HDD, Xbox 360 Elite 120GB Falcon, XB1X 1TB, PS1 1001, PS2 Slim 70000 w/ FreeMcBoot, PS4 Pro 7015B 2TB

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How long before?

Sometime between January and February.

specs in profile, video production manager for KuruHS

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Sometime between January and February.

Everything seated properly?

Main rig on profile

Zephyrus - Windows 7 side rig

Spoiler

AMD Phenom II X6 1055T (undervolted to 1.26v w/ CM 212 EVO), 1x8GB ADATA XPG V1.0 (1600MHz CL9), Asus M4A77TD, 240GB Kingston UV400, 1TB Toshiba 2.5", EVGA GTX 960 SC, Enthoo Pro, Corsair CX750M, Windows 7 Ultimate 64-bit

Mac Mini (Late 2014)

Spoiler

Intel Core i5 4278U, 8GB RAM, 250GB Samsung 840 EVO, macOS Monterey, using it with a ViewSonic VX2748

Consoles: Softmodded 1.4 Xbox w/ 500GB HDD, Xbox 360 Elite 120GB Falcon, XB1X 1TB, PS1 1001, PS2 Slim 70000 w/ FreeMcBoot, PS4 Pro 7015B 2TB

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Everything seated properly?

Yes.

specs in profile, video production manager for KuruHS

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Yes.

imgur_9CUtI.gif

 

I have no more ideas.

Main rig on profile

Zephyrus - Windows 7 side rig

Spoiler

AMD Phenom II X6 1055T (undervolted to 1.26v w/ CM 212 EVO), 1x8GB ADATA XPG V1.0 (1600MHz CL9), Asus M4A77TD, 240GB Kingston UV400, 1TB Toshiba 2.5", EVGA GTX 960 SC, Enthoo Pro, Corsair CX750M, Windows 7 Ultimate 64-bit

Mac Mini (Late 2014)

Spoiler

Intel Core i5 4278U, 8GB RAM, 250GB Samsung 840 EVO, macOS Monterey, using it with a ViewSonic VX2748

Consoles: Softmodded 1.4 Xbox w/ 500GB HDD, Xbox 360 Elite 120GB Falcon, XB1X 1TB, PS1 1001, PS2 Slim 70000 w/ FreeMcBoot, PS4 Pro 7015B 2TB

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mobo+CPU+RAM+VGA.  remove everything else.

 

let it boot and it should stall at a point where it looks for a boot device.

 

should help you narrow down your fault

 

make sure CPU and VGA power connectors are connected

disable all overclocks

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Depending on the age of the mobo the cmos battery might be dead

"Anything that makes a console more like a PC, makes it better" 

-Linus Sebastian

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I don't even know what I did, but it's working again. It boots to Windows fine with my backup GPU and backup PSU, so if something doesn't work, we'll see which one it is.

specs in profile, video production manager for KuruHS

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do you have any mem stick or other devises plugged in because that can cause boot loop 

l Intel Core i7 4790K @ 4.5Ghz l Asus VII Ranger ROG l MSI GTX 970 @ 1555MHz l 


PC PART PICKER

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i had this boot loop issue before, it might sound stupid, but unplug all your usb devices and power it on, it worked for me. 

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