Member Avatar for Patrick5988

ok so.


One day i came home to find my computer dead after a lightening/thunderstorm. and well i didnt try to do anything about it till today. i get no juice whatsoever from the powersupply. no juice anywhere. i get a new power supply and install it today, and same exact thing happend. no juice anywhere. now my assumption is im just installing the PSU wrong. but im just wondering before that, coudl the power supply be only one of the issues. ie. could my motherboard have shat the bed? im still not getting any juice period to the power supply. so i dunno thats why i think i just hooked it up wrong.


but im in fear that my ASUS p5nd2 is anhialated. not so good.


but can anyone assist me


much appreciated.

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Dani AI

Generated

Practical next steps and focused checks for a storm-damaged build (addresses comments from and )

Start by isolating the power path and confirming whether the motherboard is seeing the ATX standby rail. With a multimeter, measure the purple wire on the main ATX plug relative to any black ground — it should read about 5 V (this is the 5VSB standby rail that indicates the board can request power). The ATX spec explains these signals and the green PS_ON line that tells a PSU to switch on: ATX power supply (pinout/PS_ON/5VSB). If 5VSB is present but the system will not start, the next step is a controlled start of the PSU (PS_ON short to ground) to verify the supply actually runs and delivers the main rails; use a proper PSU tester or a deliberate jumper and observe voltages/fan spin — do not power up with unknown shorts present.

If 5VSB is missing, rule out the power cord, outlet, and surge protector first (try a different known-good wall outlet and cable). With the PSU unplugged, use a continuity check between the 5VSB pin and ground — a near-short indicates a board-level short that will prevent standby power. Inspect the motherboard closely for bulging or leaking electrolytic capacitors, discolored or cracked components, or blown MOSFETs around the VRM; these are often repairable but indicate component-level failure.

Bench-test the motherboard outside the case with the minimum parts (CPU+heater, one RAM stick, required ATX and CPU power connectors) and a verified working PSU. If the PSU runs but there is still no POST, try known-good RAM or test the CPU/RAM in another board where possible. For data safety, remove the drives and connect to another system or an external adapter to recover files.

Safety notes: internal PSUs and motherboards can retain lethal charge — unplug and discharge before probing, and get professional help if unsure. If the board is visibly or electrically shorted, replacement is often faster than repair; salvage CPU, RAM and drives first.

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Member Avatar for zelkea

Patrick,
Unfortunately, a power surge from lightening can take out fry everything in your computer. Do you smell an electrical burn inside the case? Do any of the chipset appear to be burnt?

AJZ

Member Avatar for Patrick5988

It does not appear to have any burnt smells etc. As for the chip sets basically the same thing it all seems kosher except for no juice whatsoever. the lousy thing is this was a 2000 dollar rig i built with S H of all the parts aye aye yae

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