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e762 woes... reboot cycle, no USB recognition

post #1 of 9
6/12/12 at 8:11pm
Thread Starter 
I have an e762 with a 930 in it, and 2 sticks of patriot sector 5 2400mhz memory. Yes, that's dual channel memory on a 1366 board ph34r-smiley.gif.

I had it running ever so slightly faster than stock at 143x21 with the memory set to 9-11-9-27-88-1T at 18XXMhz. Earlier today it decided to start rebooting, did so a few times while i was trying to play League of Legends. Eventually it got on my nerves and I decided to reset it to stock settings, except for the memory, which i set to run at 1867Mhz (board was putting it at 1067Mhz by default, and i couldn't bear to let it run so slow). I hit F10, and it would not post. So I pressed the reset button a few times after several failures to post, and then decided to clear the CMOS. after clearing the CMOS, it posts and hangs at a screen displaying Pheonix awardBIOS v6.00PG, drives found, processor name and frequency, and at the bottom "press del to enter setup, press esc to enter boot menu". My keyboard lights up, but pressing buttons does nothing, and pressing caps lock does not light up the indicator light for caps lock. I tried other keyboards including a PS2 unit. But nothing >.>

Unfortunately I dont have any spare memory to try atm, or any other 1366 chips. I do have a couple 8800GT's, but i don't think that would help.

Thanks if you can help me
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post #2 of 9
6/13/12 at 4:58am
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it sounds liek a ram issue. was there any post codes that it got hung up on when you were having trouble or even now. Also ashe be the bomb just saying.
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post #3 of 9
6/13/12 at 11:42am
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it gave me post code 75, i looked it up and it said something about IDE detection. So I removed all the drives, and it booted fine. Then, attached only the drive that windows is installed on, and booted, resulting in a BSOD when it tries to load windows. started in repair mode, tried to repair it, and no luck. So I assumed it must be a corrupt windows >.> Re-installed windows, and now everything works as it should, although it randomly rebooted once since this morning when i re-installed.

I had read about reboot cycles with this board (and evga boards in general) before i bought it, but decided it was worth getting, as i got it for a very nice price. Oh well, now I'm thinking about how long I'll have to take lunch to work to be able to afford a 3960X. Or if I should just get a 3770K. Been out of the scene for awhile, so I'm not up on all the latest hardware.
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post #4 of 9
6/13/12 at 11:57am
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the 3770k is a way better buy... as for reinstallign glad i could help i was trying to avoid a reinstall btu someetimes windows hates up
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post #5 of 9
6/13/12 at 11:11pm
Thread Starter 
Ok, so on a whim i thought maybe this is due to memory instabilities, so I started up prime95, which insta-crashed my system. Just like it would with a very unstable OC. Rebooted, and tried again, this time it instantly stopped, reporting an error. So, I headed off to the BIOS, and saw that the default memory timings were 7-7-7-20-51-1T @1067Mhz. Now I would assume that almost any DDR3 could manage that, and especially my sector 5's, but what do I know... So i set it to what Patriot says the memory could do, 9-11-9-27-88-1T, I left the frequency at 1067Mhz, Patriot says they can do 2400Mhz. Rebooted and started prime95, and it has been chugging away for ~10 minutes now. CPU is at it's stock 133x21, everything default.

Going to bed... If prime95 is still running when i get up tomorrow... then I know that everything works ok as it is now... which is not everything I want to know, but i guess it's a start.
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post #6 of 9
6/13/12 at 11:15pm
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i might wonder if you did something to the memory controller on your processor. were you running the IMC within .5v of the ram when you had it OCd?
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post #7 of 9
6/13/12 at 11:19pm
Thread Starter 
no idea... I know nothing about intel OC'ing. the only things I changed were RAM voltage (changed from 1.5V to 1.65V), BCLK, and Vcore, and timings and RAM frequencies. pretty sure i couldn't damage anything making those changes... the highest Vcore i ran was like 1.3625, and the highest BCLK was about 160, although it was left at 143. It was a 5 minute OC session.
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post #8 of 9
6/13/12 at 11:26pm
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if you werent running the VTT voltage within .5v of the dram voltage then it is likely you may have damadged the IMC or the RAM.
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post #9 of 9
6/14/12 at 4:36am
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itspossible your ram could be to blame, or you IMC but it doesnt sound liek you put ur settngs in a range to hurt the IMC
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