Sorry, old mobo, it powers up, but theres no spining (in all connectors) i read 0v from the 12v pin, cpu vrm input voltage seems ok measured in caps, but no output Vcore. Any idea? somethin is badly open?
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Re: Mobo powers up, but no spins, no 3.3 no 12v
The thing must be old if it runs the VRM from the 5v... Anyway, the VRM probably won't start without a PWR_OK signal from the power supply, which shouldn't come up unless all rails (including 12v) are in spec. 0 volts is not is spec for the 12 volt rail. Try testing with a different power supply. -
Re: Mobo powers up, but no spins, no 3.3 no 12v
Give make and model number of the motherboard! Otherwise, you won't get much more than just general advice.Comment
I LOVE 
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Hey all, my first post here ..yay...!
so , lets kick off with the problem I have with this mobo.
-= Asus ROG Strix Gaming x99 =-
Background info - bought 2 different boards from eBay to try and fix, one i think i can fix, the other ... not so much (which is why im here).
There is no obvious damage or signs of previous tampering. in fact, i could swear the board is brand new, its that clean...
Motherboard symptoms:
(with no peripherals attached).
Motherboard does light up and looks to be functional (but isn't).... -
As per the description, there is some life but it seems like the important power rails are not getting any juice. How can I test that the power management chip (UH1) is not at fault? My tests show that I get power to the various power chips but then the enable triggers are not there to switch them on? Are there any other tests I should be doing to pinpoint the issue?
Board: VAL91 LA-9932P Rev 1.0 (A00) 2013-09-11
PJP101/103 = 5.04v
PJP100/102 = 3.32v
PJP200 = 13.5v
PJP201 = 0v
PJP202 = 0v
PJP203 = 0v
PJP204 = 0v... -
so i took out one of my spare gigabyte ep35-ds3r mobos from storage for use to do some cpu, ram and video card testing of stuff i bought from ebay and got for free from momaka. he bought 50 e8400 cpus for cheap from ebay some years ago and i decided to help him relieve him of some of his supply since he had waaaay too many!!
what did we say about hoarding too much stuff and depriving others of them?! *cough* socialism *cough* lol! 
i had to blow some dust off the board and heatsinks with the datavac as i didnt clean it up before putting it in storage. after finishing... -
Hello all,
I'm stumped on this guy, so wanted to see if anyone has any further ideas:
Intro:
This is an Acer Nitro 5 AN515-55-55M1 with unknown prior history (bought "as-is" on eBay). It charges the battery and powers on from both AC adapter and battery, so I think this rules out main power issues.
Upon attempt to boot, it will "reboot" (meaning powers down and then powers on again) only once, and then stays stuck in a status of lights on / no post / no monitor. Powering on with fn+esc maxes out the fans on first boot attempt,... -
Hi,
I am using this Acer Aspire V5 571P 6499 laptop for a long time. Laptop does powers on, but no display after properly shutdown while in its last working condition.
Laptop model - Acer Aspire V5 571P 6499
MoBo - Husk MB 11309-4M 48.4TU05.04M
HW config. i5, 4 GB RAM,250GB SSD, Windows 10 OS
status when laptop turned on
no display no logo no BIOS access
status - power led on, charging led (when power adaptor connected), led on power switch glow when power is on.
fan spins and stops for a minute and again start spinning....
Comment