computer wont boot too bios afer psu install

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sam ginsben

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Jun 13, 2016
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Hey,I bought a evga 600b PSU and received it yesterday on halloween,. When installing it I noticed it didn't have a 24 pin connector but a 20pin and a 4 pin. Thefour pin connector had one wire that was not connected red wire... I decided to connect it and boot anyways, and the disconnected wire sparked when I turned it on. I was being as carefully as possible when connecting it. Now I trying reconnecting my old300w PSU and it won't even boot to the bios I just get 3 beeps. After looking this up I found 3 short beeps means unable to start flashing such as missing bios or utility. Sorry this was so long, and I can't figure out how to link the page for the bios beeps this tablet. Computer model HP pro 3130mini tower motherboard is ms 7613 any help would be awesome
 
Solution
Ironsounds
Hello... Consider yourself lucky in life today... B D there are 5vdc, 3.3vdc circuits to those chips... if you said it was a red wire... that was a 5vdc PS circuit...And you raised the grounded OV level on the circuits when you shorted to the case, and also causing the 5vdc to drop too.
EMF and lightning hit ground potentials all over the world... and can get all the 1's and 0's confused to the chips on those grounded circuits... Draining/removing the PS voltage and the CMOS clear will allow the MB to re-read and re-set the 1's and 0's to proper order, on the next BOOT.

If your Body is touching a grounded potential you will be able to draw current through your water, skin and cells... isolation from ground is your protection...
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Ironsounds

Ironsounds

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Jul 31, 2011
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Hello... You can link by copy and pasting the WEB address here.

It seems you noticed a wiring problem with the NEW PS and still decided to try it B o... Try a MB battery removal and CMOS clear/reset, to see if you can fix the BIO's boot problem... using the OEM PS.

1) Do the Wire colors and placement of the MB 20+4 match the original PS... this was a typical problem with OEM MB's and PS's, that they are not located in the same positions... as a STD MB and STD ATX power supply... and MB damage could result.

2) Do you see MB trace or pin damage on the MB now?

Here is a wiring diagram of a STD ATX, to explain the wires color code and connections... compare it to the OEM PS wire locations. https://en.wikipedia.org/wiki/Power_supply_unit_(computer)
 
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sam ginsben

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Jun 13, 2016
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So, looking atboth PSU s wires all seem to match the difference is the evga has 20+4 and my original PSU is just 24 pin, but the wires on the 4pin are black red orange yellow and they are the same on the original PSU... I removed the battery and boot it go the sane 3 beeps the I removed 3jumper and repositioned them just having one hole plunged on on 2_3cause its a 3 jumper set I think there are 2 jumpers and a recovery. But I still got 3 beeps then I removed all jumpers and didn't get any beeps but it still would boot to bios.. The beeps are all the same beep 1sec same beep 1sec same beep.
 
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bgunner

bgunner

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Feb 13, 2009
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There is nothing to worry about a 20+4 configuration. This is done for older motherboards that have only a 20 Pin connection. Some PSU makers still produce the connection so it remains compatible with those boards.

What motherboard do you have? IF it is an OEM PC please include the whole model number of the PC so we may look it up and know what hardware you are using.
 
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bgunner

bgunner

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It is also possible that you bumped something in the case causing this issue. So, Besure to go over all the power connectors, Memory, GPU if you have a discrete, and any other hardware that pluggs into the motherboard to be sure that they are all plugged in all the way and seated firmly onto the slots.

Ensure you have the 20+4 pin, 4-8 Pin EPS and if you have one the GPU plugged in to the PSU. Any of these can cause major issues with booting.
 
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sam ginsben

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Jun 13, 2016
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The motherboard says ms-7613 ver:1.1 the computer name is HP pro 3130 my(mini tower) model number.... It has serial number and product number.. But I don't see a model number..
 
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sam ginsben

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Jun 13, 2016
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Everything seems to be in the right place and secure .. Umm I only disconnected the 4 pin CPU and 24 pin PSU connector besides the HDD and optical but those would have anything to do with but booting to bios. I would think..
 
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Ironsounds

Ironsounds

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Jul 31, 2011
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Hello... Look in your MB manual and make sure you have the correct Pin settings for clear and normal operation... and what ever else.

Well it seems you know there was a Voltage surge and flash... if all other attempts to get a good Boot failed... the MB could need a manual BIO's re-flash to wake it up... You will need a DOS mode flashing utility and the BIO's file from HP or HP site.
 
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Ironsounds

Ironsounds

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Jul 31, 2011
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Hello... Are you removing the PS power from the Wall outlet before every BOOt attempt? this might explain why the CMOS clear is not taking? Using the PS switch Only may not be enuff in your situation. B /

DOS (Non Windows) MB flashing utilities were around before Windows... There is plenty of information/procedures out there... the Problem I'm seeing now is these companies are only making public access to Windows only flashing/update files... Tech support calls maybe needed from them, (and email files) to do this. B /

1) You basically make a DOS bootable media... USB works fine.
2) copy the MB brand BIO's flashing utility on it...
3) and Copy the BIO's file to it.
4) Use the correct command lines and file names to start the flashing utility.
5) let the Flashing complete.
6) remove flashing media, power down from the WALL/PS power input, and re-boot.
 
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sam ginsben

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Jun 13, 2016
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I don't even have the PSU mounted its laying on my floor but I put the jumpers back in the original position and it booted past the bios, the time it booted to the bios was when I moved 2-3 jumpers to the the bottom pin and removed the lithium battery then some how that combo made it boot to the bios
 
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sam ginsben

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Jun 13, 2016
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Thank you everyone I'm going to send the evga 600b PSU , if anyone has an idea of a 500w+ good quality continuous PSU 24 pin that compatible with a 3130mt, cause I'm deff not repurchasing this evga ... As I bought it brand new. My comp is back up and running perfectly, I've learn a great lesson today. Don't plug in a PSU that looks damaged disconnected wires PSU is big time business!
 
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bgunner

bgunner

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Feb 13, 2009
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Look into the XFX brand PSU's. They are actually made by Seasonic so they have great quality parts installed. Superflower and its PSU's made for other company's are great also.

The reason I'm not recommending Seasonic is price. While they are a great PSU you get the same build and parts quality from the XFX PSU's at a lower price.
 
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sam ginsben

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Jun 13, 2016
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Yes its working great again, solo removing the battery didn't fix the 3 beep code. Then removing the jumpers didn't help but repositioning the jumpers to the bottom pin and removing the battery got it to boot to the bios. Now the jumpers are back in the original position and the battery in back in and its working great. Ty for all the help idk who to pick as best solution, cause everyone was quite helpfull
 
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sam ginsben

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Jun 13, 2016
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And to respond to ironsound , yes I was unplugging the PS from the back on every jumper change or battery removal. I just didn't wanna get shocked lol. Maybe that was my problem all along with the c mos I just didn't wana shock myself I've heard horror story's of people shocking themselves with a PS and I guess it feelsnlike the worst snake bite ever lol
 
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sam ginsben

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Jun 13, 2016
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I'm 99% sure it had something to do with resetting the CMOS, I just don't understand how a PSU that made alil spark from hitting the side of my case could mess with my cmos/bios the wire was unclamped completely disconnected and sparkedwhen it hitt metal from there on everything was messed up. Even reconneting the oem psu. Kinda boggles my mind.. But everything's OK now :)
 
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