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790i Ultra NVIDIA chipset - Still rockin' in 2015 / 2016 / 2017.. will it ever die? - Page 41

post #401 of 433
For sure man that's what I was doing after I had just built it... Got to changing settings through the BIOS and freeze... shutdown did it again... Now consistent C1 error code with beeps.

Board is out of the case with the chipset heatsink removed thinking I shorted with too much compression, doesn't look like it... Still not working without the chipset heatsink.

What I meant by washer was for the laptop screws I used for the North/ South bridge with no stops higher compression dropped temps by 15C. So now I have the E5450 in there and 1 stick of ram in slot 1 and just getting beep codes long continuous and C1 error... Before it was FF no post while in the case.

Winbond near Bios removable chip... the tiny pins appear to have bonded to together in parts. The chip gets warm before was FF. So i added Flux to the parts and gave it some heat which separated most but yeah probably need a fresh chip and easily add... what's that part number? Thanks

PS - BTW my friend said the Southbridge nearest to that chip had been consistently 90-100 for years. I suppose that heat saturated the PCB and caused those pins to melt and merge, over time causing more and more issues.


Edited by chris89 - 4/9/17 at 1:51pm
post #402 of 433
Thread Starter 
I think that Winbond chip is your legacy I/O, it's not part of the south-bridge but does communicate with it. I am not sure if that would prevent the board from posting or not.. I am thinking it wouldn't but not 100% sure..

The chipsets are pretty much known to run hot... when I say hot I'm talking about 80C-85C hot... 90C-100C is extremely hot and I would be suspicious of the board being stable at this point. It was pretty much common knowledge that when overclocking on these boards you would need a supplemental fan on the chipsets in addition to better CPU cooling. The GPU was also an issue as it would allow heat to rise right into the North-Bridge and cooling fan for both chipsets.

Having said that, one of the most common issues with these boards is being picky about MEMORY. I have had to change memory slots to "trick" (lack of a better term) it into thinking the memory configuration changed and default back. I have had to reset the BIOS so many times I can't tell you and each time it was frustrating (not as nice as many of the newer motherboards) but that's the way it was. If you truly have a FTW board then you might have some additional perks here I'm not 100% sure.

What memory are you using? How many sticks are you trying right now? I would ONLY use two at first until you can get into the BIOS and configure what you need. You will have to re-configure the BIOS so many times you'll memorize everything wink.gif it's just part of this genre. The Striker II extreme had some nice features to save settings to a USB drive, most 790i boards didn't have that.

If you reset the CMOS (unplug cord, pull battery, wait 1 min, put batter back in, put power back) AND change the memory slots used at the same time you might resuscitate it enough to get back into the BIOS. It can be tricky but as long as the board isn't truly "BAD" you should be able to get it going.

Good luck!
post #403 of 433
Quote:
Originally Posted by chris89 View Post

For sure man that's what I was doing after I had just built it... Got to changing settings through the BIOS and freeze... shutdown did it again... Now consistent C1 error code with beeps.

Board is out of the case with the chipset heatsink removed thinking I shorted with too much compression, doesn't look like it... Still not working without the chipset heatsink.

What I meant by washer was for the laptop screws I used for the North/ South bridge with no stops higher compression dropped temps by 15C. So now I have the E5450 in there and 1 stick of ram in slot 1 and just getting beep codes long continuous and C1 error... Before it was FF no post while in the case.

Winbond near Bios removable chip... the tiny pins appear to have bonded to together in parts. The chip gets warm before was FF. So i added Flux to the parts and gave it some heat which separated most but yeah probably need a fresh chip and easily add... what's that part number? Thanks

PS - BTW my friend said the Southbridge nearest to that chip had been consistently 90-100 for years. I suppose that heat saturated the PCB and caused those pins to melt and merge, over time causing more and more issues.

Before you go replaceing chips,ect. try these little gems of advice. https://forums.evga.com/790i-Ultra-SLI-C1-code-won39t-boot-help-m10979.aspx
https://forums.geforce.com/default/topic/456873/pc-components/790i-ultra-sli-c1-error-/
post #404 of 433
I cleaned out the memory slots with Goof Off and a Tooth brush... battery removed and I'll wait and see...

Check out these pics.





post #405 of 433
*update*

Booted right up after cleaning memory slots haha biggrin.gif testing now

I used Laird Thermagon T-Flex Thermal Flex T-6100 material on the southbridge northbridge cover all the little transistors to prevent short...

Which has also yielded even lower northbridge southbridge temperatures... been running 20min so far...

Is there a 790i Ultra EVGA Beta bios that allows undervolting? I really think the Southbridge could use an undervolt. It's 1.32V and I just think that's too much. If I could knock another 10C off the southbridge would be ideal... thanks

PS - I'd really like to run the GPU in PCIe x16 slot #2 so the southbridge has better cooling... It cannot boot though on slot 2... which the card above it causes its temperature to rise at least 15C.


Edited by chris89 - 4/10/17 at 3:53am
post #406 of 433
This chip right here shows up in AIDA64 near the Winbond at 90-96C continuous... I snooped around the board and sure enough. Ouch. This chip is smokin.

Solution?

post #407 of 433
Thread Starter 
Hot like ouch or hot like cook eggs? It could be a false reading. I think I remember seeing something in AIDA also but didn't see it in BIOS. Have a thermal gun?
post #408 of 433
Like flippin smokin hot. It needs a cooling solution as I saw it hover between 88 and 96C... I am sure it's a limiting factor. It's possible that chip is the Clock Generator. Which could quite easily dial back performance capabilities according to it's temperature and continuous throttling.

HWInfo reported* It's really that hot, not an error. Between 190 and over 200 degrees Fahrenheit. Throttling right before the solder melts.
Edited by chris89 - 4/10/17 at 5:29pm
post #409 of 433
Thread Starter 
I'm not sure what's going on there, you might have (almost captain obvious, but there could be something someone else can spot) something physically damaged on that board. I would not consider that safe... like seriously, fire hazard... A short somewhere? The board is still out of the case and it's doing that?

What are you doing with voltages? Auto? Manual? What's everything set to, and reporting?
post #410 of 433
That board has been water/humidity damaged. Look at the white stuff under the bios socket and discoloration in that corner of the board.


Please use 91* isopropyl alcohol to clean electronics, not goof off. thumb.gif
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