Computer won't boot

W

WayTooShort

New Member
Reaction score
4
I just finished building my computer, and now the damn motherboard won't boot. When I turn on the PSU the red light on start button starts burning, but when I press it nothing happens.

Could this be PSU's fault? I have some fans directly connected to it, but they will never run. Should they?
 
W

WayTooShort

New Member
Reaction score
4
I just tested with another PSU that should work, and I still have same problem. Now it's either CPU or motherboard. Motherboard does absolutely nothing, and when I turn PSU on a little chip between two PCI-e slots gets really hot. Is it likely that my motherboard is the source of the problem?
 
Slapshot136

Slapshot136

Divide et impera
Reaction score
471
when you connect the PSU to the motherboard and power it on, does the motherboard's "ready" light power on? does the CPU have/need an extra power adapter (4 or 8 pin?) are there any beeps? have you tried a single stick of ram in all the ram slots? (making sure that it's in all the way)
 
W

WayTooShort

New Member
Reaction score
4
I have both the 24-pin ATX cable and the 8-pin thing for CPU plugged in, the motherboard manual said that it won't boot unless both of them are connected. I have tried two different RAMs in all slots, but I doubt that is the problem since it won't even beep.

When the PSU is switched on, the light on motherboard's power and reset switch turns on. However, pressing either of them or the case power button causes nothing to happen.

Also whenever PSU is switched on, a small transistor (mosfet I think) gets burning hot. Testing with voltmeter, that mosfet causes the 5 volt purple (sb) cable on the 24-pin ATX cable to reduce to about 4 volts, meaning that it's using 1 volt to something when the motherboard isn't even turned on. Is that normal?
 
Slapshot136

Slapshot136

Divide et impera
Reaction score
471
@ your above post - I would ask the motherboard manufacturer - they should know if that is normal or not, I don't know (I don't even know what model motherboard you have..)
 
DDRtists

DDRtists

ɹoʇɐɹǝpoɯ ɹǝdns
Reaction score
415
Is it plugged in?!

But nah, the first thing I would check is the placement of the power/reset button switches. I've done that before. If that doesn't fix it or do anything, contact your motherboard manufacturer, chances are you got a bunk mobo' :(
 
W

WayTooShort

New Member
Reaction score
4
I have asus P5Q-E, though that probably doesn't tell you anything. The heating mosfet is the one between two PCI-e ports.

Anyways, is there no reliable way of checking whether it is CPU or motherboard that is failing?
 
DDRtists

DDRtists

ɹoʇɐɹǝpoɯ ɹǝdns
Reaction score
415
Chances are if it's the CPU, it would give some beep code. Motherboard, maybe not, as it might not get far enough to do that.
 
You must log in or register to reply here.
General chit-chat
Help Users
  • No one is chatting at the moment.
  • The Helper The Helper:
    If you are new to the site please check out the Recipe and Food Forum https://www.thehelper.net/forums/recipes-and-food.220/
  • Monovertex Monovertex:
    How come you're so into recipes lately? Never saw this much interest in this topic in the old days of TH.net
  • Monovertex Monovertex:
    Hmm, how do I change my signature?
  • tom_mai78101 tom_mai78101:
    Signatures can be edit in your account profile. As for the old stuffs, I'm thinking it's because Blizzard is now under Microsoft, and because of Microsoft Xbox going the way it is, it's dreadful.
  • The Helper The Helper:
    I am not big on the recipes I am just promoting them - I use the site as a practice place promoting stuff
     +2
  • Monovertex Monovertex:
    @tom_mai78101 I must be blind. If I go on my profile I don't see any area to edit the signature; If I go to account details (settings) I don't see any signature area either.
  • The Helper The Helper:
    You can get there if you click the bell icon (alerts) and choose preferences from the bottom, signature will be in the menu on the left there https://www.thehelper.net/account/preferences
  • The Helper The Helper:
    I think I need to split the Sci/Tech news forum into 2 one for Science and one for Tech but I am hating all the moving of posts I would have to do
  • The Helper The Helper:
    New dessert for Summer - https://www.thehelper.net/threads/recipe-lemon-blueberry-layer-cheesecake.194113/
  • The Helper The Helper:
    What is up Old Mountain Shadow?
  • The Helper The Helper:
    Happy Thursday!
     +1
  • Varine Varine:
    Crazy how much 3d printing has come in the last few years. Sad that it's not as easily modifiable though
  • Varine Varine:
    I bought an Ender 3 during the pandemic and tinkered with it all the time. Just bought a Sovol, not as easy. I'm trying to make it use a different nozzle because I have a fuck ton of Volcanos, and they use what is basically a modified volcano that is just a smidge longer, and almost every part on this thing needs to be redone to make it work
  • Varine Varine:
    Luckily I have a 3d printer for that, I guess. But it's ridiculous. The regular volcanos are 21mm, these Sovol versions are about 23.5mm
  • Varine Varine:
    So, 2.5mm longer. But the thing that measures the bed is about 1.5mm above the nozzle, so if I swap it with a volcano then I'm 1mm behind it. So cool, new bracket to swap that, but THEN the fan shroud to direct air at the part is ALSO going to be .5mm to low, and so I need to redo that, but by doing that it is a little bit off where it should be blowing and it's throwing it at the heating block instead of the part, and fuck man
  • Varine Varine:
    I didn't realize they designed this entire thing to NOT be modded. I would have just got a fucking Bambu if I knew that, the whole point was I could fuck with this. And no one else makes shit for Sovol so I have to go through them, and they have... interesting pricing models. So I have a new extruder altogether that I'm taking apart and going to just design a whole new one to use my nozzles. Dumb design.
  • Varine Varine:
    Can't just buy a new heatblock, you need to get a whole hotend - so block, heater cartridge, thermistor, heatbreak, and nozzle. And they put this fucking paste in there so I can't take the thermistor or cartridge out with any ease, that's 30 dollars. Or you can get the whole extrudor with the direct driver AND that heatblock for like 50, but you still can't get any of it to come apart
  • Varine Varine:
    Partsbuilt has individual parts I found but they're expensive. I think I can get bits swapped around and make this work with generic shit though
  • Ghan Ghan:
    Heard Houston got hit pretty bad by storms last night. Hope all is well with TH.
  • The Helper The Helper:
    Power back on finally - all is good here no damage
     +2
  • V-SNES V-SNES:
    Happy Friday!
     +1
  • The Helper The Helper:
    New recipe is another summer dessert Berry and Peach Cheesecake - https://www.thehelper.net/threads/recipe-berry-and-peach-cheesecake.194169/
  • The Helper The Helper:
    New recipe is Cheeseburger Pie! https://www.thehelper.net/threads/recipe-cheeseburger-pie.194191/
  • The Helper The Helper:
    Latest recipe is Honey Chipolte Chicken Crispers https://www.thehelper.net/threads/recipe-honey-chipotle-chicken-crispers.194210/
  • The Helper The Helper:
    I think we need to add something to the bottom of the front page that shows the Headline News forum that has a link to go to the News Forum Index so people can see there is more news. Do you guys see what I am saying, lets say you read all the articles on the front page and you get to the end and it just ends, no kind of link for MOAR!

      The Helper Discord

      Members online

      No members online now.
      Online now:
      196 (members: 1, guests: 195)

      Share this page

      Affiliates

      Hive Workshop NUON Dome World Editor Tutorials

      Network Sponsors

      Apex Steel Pipe - Buys and sells Steel Pipe.
      Top