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Help, will not power up!

Mar 16, 2013
2 (0.00/day)

Apologies if this is in the wrong box.

I have just acquired, - at ENORMOUS expense (sic) an OCZ 520 ADJ
power supply and an ASUS A7S8X-MX motherboard, and have deployed
them in an old Dell 486 box chassis with a new 20 GB EIDE disk. ($10.00!)

If I test the power supply with a paperclip on the green lead etc, it comes
up fine, but if I plug it into the motherboard along with a chassis fan
then all that happens when I switch on is the green LED comes on and
I start getting network activity. (Guess its trying to boot from the lan).

Anybody got any ideas as to why it might not like the board, - Its a
500 watt+ model so would have thought it would be ok. Am I missing some
vital signal going back to the power unit to tell it all is well?

Thanks in advance

Martin Langley in London
May 9, 2011
1,893 (0.77/day)
Mainland Britain
System Name H2o Box
Processor Intel(R) Xeon e5-2690 v2 Stock 3.3GHz
Motherboard MSI X79A-G43 Plus (MS-7760) v3
Cooling CPU EK Block & Phobya G-Changer 360 V2.0 RAD H2o
Memory Gskill RipjawsZ 16Gb & Gskill TridentX 16Gb 9-10-9-28 2T @ 1866Mhz [locked]
Video Card(s) Zotac GTX 1080ti AMP EXTREME
Storage HyperX Fury 120GB & Savage 480GB SSD, Seagate 250GB,250GB 7200rpm Kingston 64GB SSD
Display(s) Panasonic GT30 46'' 1080p 3D HDTV [Custom Resolution 4096*2304]
Case Corsair O-800D
Audio Device(s) Creative Sound Blaster X-Fi Titanium Fatal1ty Pro
Power Supply Be Quiet! [Dark Power Pro 11] 1200W CM replaced [7-4-2017]
Mouse Asus ROG
Keyboard Microsoft Digital Media 1.0A
Software Win 10 Pro 64Bit v 1703 / OS[build 16299.192]

Welcome to TPU

Q.1 What cpu is installed? AMD model number
Q.2 What Ram is installed? make and model
Q.3 Monitor Connected to: onboard vga and or AGP 1.5 compliant vga card? [*if agp vga make and model]
Q.4 Is monitor screen blank?

Try: clear CMOS and boot system with minimal hardware: mobo, cpu & cpu cooler, one stick of RAM in DIMM_1 and vga card

Manual: here

*may be look here

also look here

atb (all the best)