Hello guys!!
I have mobo EVGA X58 FTW. In last time i has some interest actions with motherboard. At first: "cold boot" every time it gets stuck on post code f3. Fan on CPU and videocard is rotated, but motherboard not boot up. Any reboot or other action, just gets stuck on post code f3.
Ok. I press on reset button, motherboard thinks some time 3-4s. and reboot and i get normal boot up in bios then to OS. When i reboot or start PC after not long time i has normal boot up. Motherboard can complete any stress tests with or not OC.
Second problem: long time i cannot get a normal "sleep mode" in windows 7. When the mobo go to "sleep mode" my fans to be continue to rotate. I read some tread on this forum and do some reconfiguration according to the instructions in BIOS settings of S1mode change to S3mode. Booting in windows and trying to use "sleep mode". All be fine: screen off, fans stops. I has think it be fine. But not, when i press any key on keyboard - any reaction, on mouse too. I press power button on mobo (little detail: light will be green not red, maybe this detail is important) and i gets stuck on post code f3....ok, i press on reboot and...i gets stuck on post code CF. Wow... then i press reset again and gets stuck on post code FF. Me help to power off my power supply from 3-5 sek. not Clear smok.

This action repeated during the last month. Motherboard boot up only after post code F3 and reset. And one more detail sound works only without native driver. When i trying to instal driver on realteck LC892 (R2.73) my sound can be lose in any time. Without driver sound works fine. Another components on mobo work properly (USB 2.0-3.0, Sata porst, all 6 dimms, and others) Oh and some time ago before start this fantastic action, some time i gets stuck on post code 25. But I separated out all components of the PC, and gathered them again and it's gone.

I thinks some components of chipset like South bridge be dies or other component. It is can be repair or not? I love this mobo but this problems....kills my mind.

What BIOS are you using?
 

My configuration but i think problem in mobo directly in SB. I have big hope to replace this component and this give me stable work and boot up.
i7-960 (3.8 Ghg)
EVGA X58 FTW
6xKHX1600C9D3K1 Total 24Gb
Asus Gtx660ti also for test use HIS IceQ+5750 1Gb
2xSamsung HD204UI
1xWD10EADS
1xWD5000AAKS for OS.

Oh. I keep this in mind but forgotten. Power supply Seasonic X-1250(SS-1250XM) first revision.

Update..
Some time with driver on sound Realteck ALC892 (273 version driver) it be lost. But when lightly push on capacitor 6.3V560uF (marked white color) sound wake up. And work properly.

rjohnson11
Is everything working OK now?

No it is only a temporary solution. When i trying to do "cold" starts with pushed capacitor, i get stuck on post code F3 (as always time). But I have conducted some experiment: before the "cold start" I has warmed area near the condenser with women's hairdryer. And what do you think? I got a normal boot up without issues. I am full of thoughts: What could it be?