So I go my new motherboard today (eVGA nForce 780i SLI FTW Edition) and just got it installed. I go to power up my system and everything seems alright... However upon closer inspection I notice that all of the things on my PC that "light up", such as my fans and cold cathode tube, happen to be "flickering" at a fairly high interval. It was almost like seeing a florescent tube flicker or and extremely fast strobe light. It also sounded like all of my fans were cutting in and out at the same interval... Sounds like some kind of power issue.
The motherboards onboard indicator was outputting the "FF" code, which means "Boot" in the manual... Apparently this is a good thing, and simply means that the system is working. However I get absolutely no graphics signal output.
I assume there's a bad connection somewhere, but I've checked and rechecked all of my connections. Everything is fine... Has anyone seen anything like this before?
Motherboard Upgrade Issues! Send Help!
- 21 Feb 2009 #1
Vista Vet
Join Date : Nov 2006 Canada, Alberta Posts : 220 Vista Ultimate w/SP1 (32-bit) and Windows 7 Build 7000 (64-bit) Local Time: 08:54 PM
My System SpecsMotherboard Upgrade Issues! Send Help!
- 22 Feb 2009 #2My System Specs
Re: Motherboard Upgrade Issues! Send Help!
I'm sure you know this already, but if it were me, I would disconnect everything, drives, ribbon and power cables, mouse, k/b, remove any slotted devices, USB connections, everything, leaving only
mobo
ram
chip & fan
Try that. If it improves, add devices one at a time--one of them, or the connection is the culprit
if bare bones vanilla mobo still has the same problem, remove ram, gently clean gold contacts with a clean pencil eraser.
if that does not help, I would remove the motherboard and place on paper surface close to the case, make bare bones connections so the mobo is totally isolated--might be a washer/screw short.
sorry if you have already done this, but it was not noted
- 22 Feb 2009 #3
Vista Vet Join Date : Nov 2006 Canada, Alberta Posts : 220 Vista Ultimate w/SP1 (32-bit) and Windows 7 Build 7000 (64-bit) Local Time: 08:54 PM
My System SpecsRe: Motherboard Upgrade Issues! Send Help!
Okay so I'm back on my Striker setup.. Ended up having about the same level of cable management even after ripping apart my rig to test the system... Anyways, I did the whole "test the motherboard sitting on the desk with different hardware" thing... It seems that if ANYTHING except for the motherboard is plugged into my PSU it does the previously describer flickering and sputtering. I did the exact same tests with my Striker and it had absolutely no issues, so I'm going to assume that I got a lemon MoBo... Which is kind of ironic since when I first got my Striker for this build, it was DoA as well...
- 22 Feb 2009 #4
The Contemplator
Join Date : Mar 2008 Doncaster, UK Posts : 2,754 Windows Vista Ultimate x64 Service Pack 2 Local Time: 03:54 AM
My System SpecsRe: Motherboard Upgrade Issues! Send Help!
Have you tried swapping your PSUs over to see if the fault is caused by poor PSU regulation?
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Motherboard Upgrade Issues! Send Help! problems?
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