Upgraded desktop resets continuously

SnackzRS · Aug 16, 2014

I know there's plenty of posts about this, but I just can't seem to find a working answer. I went through that 31 step post, but it didn't seem to help. I bought several new parts to upgrade my 5-year old system and once everything was installed, it kept resetting every time it reached the bios screen without my help. Basically, turn on, several seconds went by, cooling fans kicked up, usb mouse turns on, then a screen (gigabyte uefi dualbios) pops up and the system resets after 5 seconds..then repeat.

Currently running on 1 stick of ram, tried disconnecting all peripherals (except video since there's no onboard), reseated every connection and part and like I said went through the 31ish suggestions on the sticky post.

Here is my build:
Gigabyte 990fxa-ud3 (last part to purchase)
Atx-cb800w power supply
Amd fx-8350 4ghz vishera
Thermaltake water 3.0 (clw0223)
Corsair vengeance ddr3 4gb x4
Amd Radeon r9 280x
Samsung ssd 840 evolution 120g

I'm at a loss, please help. I really don't want to ask for a mobo exchange cause I live in okinawa and ordered it from amazon. But I will if it's the only thing left to do.

Darkbreeze · Aug 17, 2014

What parts are new? Gimme a list of everything that's been replaced and is currently still installed.

SnackzRS · Aug 17, 2014

All of them are fairly new except the psu which is an original part. The video card and ssd were used on the last mobo and worked fine. The rest is first time use since purchase.

Darkbreeze · Aug 17, 2014

What is the model number of both your RAM and your power supply?

SnackzRS · Aug 17, 2014

Oops. Didn't mean to mark as a solution.
Psu- Atx-cb800w
Ram- cmz8gx3m2a1600c9

Darkbreeze · Aug 17, 2014

Unselected.

I'd replace the PSU as that is a terrible unit. Xtremegear buys cheap psu's from Cyberpower and rebrands them. Cyberpower has poor power supplies. It's likely to be the culprit even if it worked previously on a less demanding system.

http://www.tomshardware.com/forum/305966-31-mystery-hardware-issues

http://www.tomshardware.com/forum/323621-31-cyberpower-warning

SnackzRS · Aug 17, 2014

That would be a blessing if it's the cause. A psu I can easily buy here. I'll let you know what happens. Thanks for the info so far.

Darkbreeze · Aug 17, 2014

BTW, I double checked the RAM, thinking there could be a compatibility problem, but it was of course fine, which I'm sure you already knew. Not that I know that the RAM is fine, it's just compatible. Just out of curiosity, did you try it with only one stick of RAM, with EACH stick, and, in the slot furthest away from the processor as that is the DDR3_1 slot.

SnackzRS · Aug 17, 2014

Didn't think about it until now, the psu I just bought is 250 volt. My house is set up for 115. Qould there be any harm to my components if I used a transformer to get the 250v for this psu? I got a Seagate ss-850km. Didn't have much of a selection.

SnackzRS · Aug 17, 2014

The answer to your last questions is yes.

Darkbreeze · Aug 18, 2014

If it's a PSU with a switch on the back for 115/250 (110/220 US) just switch it to the lower setting. If not, you need a different PSU. You can't use a 200+V PSU with components meant to only handle 110/115. Did you already connect and power up the computer with that PSU attached? If not, don't, take it back and get the correct PSU.

SnackzRS · Aug 18, 2014

Just finished installing and trying the new psu. Didn't work, it's still running the same. I misread the box yesterday. I was rushing because the store closed. It actually runs on power between 110 and 240 with no need to flip a switch.

Darkbreeze · Aug 18, 2014

Did you use the 250v psu? Are you sure you meant Seagate, or did you mean Seasonic?

Darkbreeze · Aug 18, 2014

SnackzRS :

Yes you tried each stick or yes you used the furthest slot from the cpu? Or both?

Darkbreeze · Aug 18, 2014

You might even try each individual stick of RAM in different slots on the MB. Could be a bad slot on the board.

Darkbreeze · Aug 18, 2014

SnackzRS :

Ok, good. Now, was it a Seagate, or did you mean Seasonic. That model number is a Seasonic part number.

SnackzRS · Aug 18, 2014

It was seasonic. I tried each stick in the same slot furthest from the cpu. And I did not yet try a stick in different slots. And yes I used the new psu.

Darkbreeze · Aug 18, 2014

What revision is your motherboard? Look on the box. There are about five or six different revisions of that motherboard. There are PCB revisions 1.0, 1.1, 1.2, 3.0 and 4.0. They all support different hardware and without the proper BIOS updates they don't all support the same hardware. A lot of the BIOS revisions prior to F10a do not support the 8350 cpu. Being in Okinawa you might have gotten unlucky and purchased a version of the board with an older BIOS installed.

Since you can't get the board to boot long enough to get into the BIOS and update by automatic internet update while in the BIOS (If your version supports it) or start an update from Windows, you only have about two choices if in fact you have a revision with an older bios version. (And I don't know how you're going to check that unless it stays up long enough for you to see what version you have) Return the board and get something with a newer BIOS or have Gigabyte update the BIOS and send it back to you. Or, find somebody with an older FX chip like a 4300 or 6300 or an AM3 cpu like the Phenom II and see if it will boot with that so you can update the BIOS and get the most recent version installed so it will support that cpu. It all kind of depends on the revision you have.

Darkbreeze · Aug 18, 2014

You might also double check that your revision of the board and BIOS version supports your revision and model number version of the i7 4790 as there are several different ones. I couldn't check because MSI website sucks and kept freezing up every time I tried to go to the cpu support list for MSI.

SnackzRS · Aug 18, 2014

I have revision 4. It's on the bottom left of the mobo. I'll see if stone has an available cpu to try it out.

Darkbreeze · Aug 18, 2014

Well, that's not it then. Revision 4 has had support for that cpu since the first bios release. Dang it.

Darkbreeze · Aug 18, 2014

Did you try the different RAM sticks in different slots or different RAM . Maybe the RAM modules are both bad. I don't know, we're getting down to pretty much only the board and cpu left here.

SnackzRS · Aug 19, 2014

Yeah, I tried multiple sticks in multiple spots. I'm asking around to see if anyone has a compatible cpu I can borrow. If it still doesn't work, I'll call gigabyte to ask for an exchange.

Darkbreeze · Aug 19, 2014

Well, alright bud, let me know if there is something further I can help with. I think we've narrowed it down pretty well at this point. Try the alternate cpu and see if you can update the BIOS. Might work, might not. Might also try some DIFFERENT memory. Some boards just don't like certain brands for some reason or sometimes just a batch of modules is not well tolerated.

SnackzRS · Aug 30, 2014

Got my new motherboard in finally. After installing everything, it works like a charm. Thanks for your help.

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