hi guys got my sr2 back im on her right now. I am experiencing very strange issues overclocking. i did receive my same board back i checked the serial number. i had shipped the cpus with the board because i couldn't find the protectors they sent those back HOWEVER, they did not send back the secondary back plates i needed for my water block. so i snatched a pair off of my asus rampage iii extreme and formula. It is all back together but has been acting rather strange doesn't seem to be as fast AND WILL NOT LET ME OVERCLOCK AT AT ALL. Wolf can you please send me a copy of your instructions again? i don't understand why the board would be fixed but now i am COMPLETELY unable to overclock. I did lose my settings but i remembered them for the most part except the cpu settings c1e turbo boost etc. I just don't get it. it will not overclock from stock speeds one bit. i did put the l5520s in the other motherboards i just mention rampage iii extreme and formula and used them for a little bit till i had another power surge and that fried my asus formula. i now had the electrican install the three outlet plugs in my house (yes my house was built in the 1940s and they skimped out on quality there) so i was wondering if that would possibly be an issue? or could it be that the cpu's have seen better days since they have been in motherboards that suffered power surges? i have the l5520s i could throw in there to test and see about overclocking but i love the 12mb cache on the l5639s. i was planning on getting some x5670's soon and hopefully being able to hit almost 4 ghz per core. my alternate machine i was using was an 8 core amd 8350 cpu and asus m59a7 and had an aftermarket cooler master heat sink no overclocking and was playing in 4k just as good as the sr2. please help guys i really don't want this to be rma number two. it seems like they just test it see it works and send it back they don't stress test it or anything to check for stability. PLEASE HELP GUYS. My usb ports are even acting up and my wifi is cutting in and out. everything is connected properly even the extra 6 pin connectors by the 8 pins, but i was able to overclock before fine with just the 8 pins. thanks in advance everyone.
Joel

it's the same MOBAL ?

Follow my steps in order!!
1. take out the cpu's and using a hand lens see if you can find any bent pins , if yes time to call evga , if no go to step 2.
2. Reinstall the cpu , make sure its seated well and install your Water block back. Remove all your ram's and keep only one for each cpu also make sure its at the dimm 1 ( I'm not really sure if its called dimm1 or dimm0 ) *** but before installing that ram please make sure to check that ram working ok without any errors.
Reinstall the psu , gpu and connect the mouse/keyboard .
3. Remove the cmos battery and hold the power button for 45 seconds (make sure the psu is at off state). 
Then reinstall it and power on the pc , get into bios and load defaults .
Reboot , then before trying your old OC settings , I'd suggest to start with a low bclk bump , see if you still get the ff code.
****If you still do : there is a jumper near the cpu ( cant remember which one for sure , may x-cool or other one )
change positions and hit clear cmos then try to do a little OC .
May be you can check with 1 cpu on socket 0 to avoid further complications. To do that : disable socket 1 through jumper .
Do the OC on single cpu and see what it shows up.
You can PM me at anytime . I would be glad to help !! 
I was a SR-2 FAN boy lol . I pretty much know its in and out . Its a damn monsta , if you get to know each other very well she will show you wonders.
 

it's the same motherboard ?
 

keep us posted!!

It would be extremely odd that you got back the same board from RMA. I went ahead and looked up your RMA, and I can confirm that you were sent a different board back. Your old board serial number is completely different in our records, not to mention your replacement shipped on 10/7 and your old board didn't go through testing until 10/8 in which it did fail testing. The testing and ship dates alone show there's no possible way you received back the same board, which would explain why the board reacts differently now.
 
What speed memory are you running with the board? You may not have the right timings, frequency, and voltage set for your RAM and memory controller. The memory controller on the L5639 processor you list in your signature has a 1066Mhz memory controller. For testing purposes,to start make sure your memory frequency is set to 1066Mhz and see if you can get the CPU to overclock from there. Once you establish your CPU overclock, then work on getting the memory up to it's rated frequency.

That makes sense then. Idk if this board is fully functional it crashes from time to time even on stock settings. I reseated both cpus left ram speed alone and even included mch strp to 1067. My old board I just messed with cpu voltage vtt and ram voltage and it over clocked fine. It adjusted it's own timings. I keep getting 124 which is hardware failure I'm pretty sure. Appreciate the input I'll try again but it seems it doesn't want to over clock a bit. This board just likes stock settings and it sucks I'll have to purchase a set of x5680s just to run games cuz 2.13ghz is just not gonna cut it. My 8 core amd build is performing better atm.

Well I tried again a slight over clock to just 2.56 and it gets stuck at f4. It's not in the book what's code f4?

Please send me a NEW board not a refurbished one. This one didn't even have the stickers on the heatsinks.

 
A pay top-dollar for my first SR-2 and they send me a used SR-2 with fingerprints all over mobo and hair in box.
Like a f-ing pizza hut.
EVGA probably dont have any more new SR-2 in house.
So old used stuff to RMA customers....
  

Well ill be damned. It's at 3ghz no problem right now. Hmmmm wonder if they fixed my old board because I left the film on there. I'll be mailing out the other board when I get paid this friday. Thank you EVGA!!!

I am pretty sure there is no such thing as "new" SR-2s any more, both replacements I've sent have clearly been refurbs, and one was outright faulty (wouldn't even finish posting). It makes me wonder what they will do in 8 years time if my SR-2 fails just before the warranty expires. In 8 years' time, the SR-2 will be the equivalent of a good Core 2 motherboard today - may not be worth much, but it will certainly still be a good usable machine, which means there may well still be a lot of us using the ones we have.