Sign-in / Sign-up
Your question
Solved

New Build Issue: Fans start before power, No POST

Tags:
  • Hardware Issue
  • Systems
  • New Build
Last response: in Systems
July 30, 2013 5:03:58 PM

I'm putting together my first build, and have a somewhat unusual problem (at least, the googling I've done hasn't led me to any similar situations). I've assembled everything (I can provide specs if that's necessary). When I switch on the power supply, all the fans start - power supply fan, case fan, graphics card fan, cpu fan. However, when I try to power on (I haven't hooked up the power button yet, so I'm just bridging the two pins on the motherboard) nothing happens. No change in fan speed, no POST beep, nothing. I've gone through all the steps in your lovely troubleshooting thread, and it has changed nothing. My assumption is that my motherboard is bad, but I wanted to get a second opinion before I send off for another one.

More about : build issue fans start power post

July 30, 2013 5:07:18 PM

have you tried just hooking it up to the case because it might be some weird issue
m
0
l
July 30, 2013 5:25:31 PM

Specs would help, but also check to be sure both the 24 pin and 8pin power connectors are firmly seated.

Mark
m
0
l
Related resources
July 30, 2013 8:58:32 PM

legokill101 said:
have you tried just hooking it up to the case because it might be some weird issue

I can give it a shot, but the case is an old one that I've been modding, and I'm going to have to do some soldering on the power button before I can wire it to the motherboard as the connectors aren't compatible.

markwp said:
Specs would help, but also check to be sure both the 24 pin and 8pin power connectors are firmly seated.

Yep, both are as firmly seated as I can get them.

Specs:
PCPartPicker part list

CPU: AMD FX-6300 3.5GHz 6-Core Processor
Motherboard: ASRock 960GM/U3S3 FX Micro ATX AM3+ Motherboard
Memory: Corsair XMS3 8GB (2 x 4GB) DDR3-1600 Memory
Storage: Samsung 840 Series 120GB 2.5" Solid State Disk
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive
Video Card: Gigabyte GeForce GTX 660 2GB Video Card
Wireless Network Adapter: Rosewill RNWD-N1501UB 802.11b/g/n USB 2.0 Wi-Fi Adapter
Case Fan: Cooler Master Turbine Master Mach 1.8 80.3 CFM 120mm Fan
Case Fan: Masscool FD06025S1M3/4 19.2 CFM 60mm Fan
Case Fan: Masscool FD06025S1M3/4 19.2 CFM 60mm Fan
Case Fan: Masscool FD06025S1M3/4 19.2 CFM 60mm Fan
Power Supply: Corsair Builder 430W 80 PLUS Bronze Certified ATX12V Power Supply

And the case is from a Powermac G4 Quicksilver, if that's relevant.
m
0
l
July 31, 2013 1:48:16 PM

Remove the 660 and see if it will boot to the onboard graphics.

Do you have the internal piezo speaker hooked up to hear beep codes?
m
0
l
July 31, 2013 9:08:48 PM

markwp said:
Remove the 660 and see if it will boot to the onboard graphics.

Do you have the internal piezo speaker hooked up to hear beep codes?


Tried removing the 660 (and breadboarding, both with and without the GPU). Without the GPU the fans no longer start when I flip the PSU power switch (or rather, the CPU fan spins a for a fraction of a second and then spins down), but also nothing happens when I bridge the power pins.

As for the speaker, I don't actually have a piezo speaker because the case didn't come with one. What I do have is one of these which the case did come with. I have it hooked up through an adaptor (it has the same number of pins in a slightly different configuration), but it has not been beeping. I'm currently working on borrowing/purchasing a piezo speaker just in case it isn't actually compatible.
m
0
l

Best solution

August 1, 2013 3:46:14 PM

It's really starting to sound like your first thought of a bad board is correct. If you can find a piezo and breadboard outside the case using the switch leads, etc so you don't have to jump the connector, that would be a good idea before shipping the board back. If it won't boot is a basic config with cpu, ram, one drive in a breadboard mode, chances are the board is bad.

Marki
Share
August 1, 2013 4:19:04 PM

markwp said:
It's really starting to sound like your first thought of a bad board is correct. If you can find a piezo and breadboard outside the case using the switch leads, etc so you don't have to jump the connector, that would be a good idea before shipping the board back. If it won't boot is a basic config with cpu, ram, one drive in a breadboard mode, chances are the board is bad.

Well, I just tried breadboarding with a piezo and everything listed above and got nothing, so I think the mobo is getting shipped back tomorrow. And then, I suppose we see what happens when I get a new one.
m
0
l
August 1, 2013 4:23:18 PM

Keep us posted on progress.
m
0
l
August 7, 2013 5:02:45 PM

New motherboard arrived today. I breadboarded it, it posted. I installed it into the case, it posted. Everything works now. Thanks for your help.
m
0
l
August 7, 2013 6:51:42 PM

Glad you got it working. Sometimes you just get unlucky and get a lemon.

Mark
m
0
l