SpikeSoprano Posted November 11, 2014 Posted November 11, 2014 Sorry to have to say this but if your pc was crashing randomly that is the very worst time to try and flash a bios, if it shut down during the flash it is very possible you bricked the mb. I speak from my own bad experience. Share this post Link to post Share on other sites More sharing options...
wevsspot Posted November 11, 2014 Posted November 11, 2014 Otherwise when the usb is not in the system it boots to the recovery screen. Are you absolutely certain that the flash drive isn't boogered. Did you format the entire flash drive before copying the BIOS onto the flash drive? The USB flash drive has to be formatted FAT16 or FAT32 and it can only have a single partition on it. Of course you might have bricked the BIOS chip, but that doesn't necessarily mean the whole board is bricked. Share this post Link to post Share on other sites More sharing options...
RazerZ Posted November 11, 2014 Posted November 11, 2014 (edited) Yes I'm sure. I've tried it with two different USBs, both very reliable, and the same problem happened with each of them. Both were formatted to FAT32. So buying a new BIOS chip would fix my problem? Edited November 11, 2014 by RazerZ Share this post Link to post Share on other sites More sharing options...
wevsspot Posted November 12, 2014 Posted November 12, 2014 That would be my next plan of action before chunking the board. BIOS chips are fairly inexpensive (a lot less than a new board anyway). Share this post Link to post Share on other sites More sharing options...
RazerZ Posted November 13, 2014 Posted November 13, 2014 (edited) Well before I order the BIOS chip, I thought of an idea and I'm not sure if this could be true or not.When my system was working it would boot to windows, but when I tried opening an application such as google chrome, or running a game, it would crash shortly after. Could this be due to a bad PSU?What if my system is crashing when I try to update the BIOS because of a bad PSU? Is that a possibility? Edited November 13, 2014 by RazerZ Share this post Link to post Share on other sites More sharing options...
IVIYTH0S Posted November 13, 2014 Posted November 13, 2014 Certainly, do you have access to a multimeter? Share this post Link to post Share on other sites More sharing options...
wevsspot Posted November 13, 2014 Posted November 13, 2014 I never under-estimate the ability of a faulty power supply to introduce gremlins into a system. Share this post Link to post Share on other sites More sharing options...
RazerZ Posted November 14, 2014 Posted November 14, 2014 Certainly, do you have access to a multimeter? Yes I do. Share this post Link to post Share on other sites More sharing options...
IVIYTH0S Posted November 15, 2014 Posted November 15, 2014 Certainly, do you have access to a multimeter?Yes I do. Alright, then with the computer running check and see what the voltage are for the 12V, 5V and 3.3V rails by connecting the meter to the yellow and black cable s from a molex for 12V, red and black cables for 5V and you can find the 3.3V reading from an SATA power cable. Here's some diagrams to help illustrate what I mean: Molex (connect your black probe to the contact that the ground comes out at, and alternate between the yellow or red contacts for 12V and 5V respectively): SATA: Share this post Link to post Share on other sites More sharing options...
RazerZ Posted November 16, 2014 Posted November 16, 2014 Would it be safe to do this if I just plugged in the PSU and didn't connect it to the motherboard? I currently have everything disassembled. Share this post Link to post Share on other sites More sharing options...
SpikeSoprano Posted November 16, 2014 Posted November 16, 2014 Yes it is safe but you have to jumper 2 pins to make the psu work, just google it to find out what pins, I forgot, the only problem is your psu won't have any load if it's not connected to a mb or hd's so you may not get a proper voltage reading, everything might seem fine until it's under load and then that's when the psu will drop voltage. Share this post Link to post Share on other sites More sharing options...
RazerZ Posted November 16, 2014 Posted November 16, 2014 I see. Well I guess I have to breadboard again to make it work. I can follow the 12V and 5V instructions , but which pins do I need to check on the SATA cable exactly? Share this post Link to post Share on other sites More sharing options...
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