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Old 05-31-2013, 11:03 PM   #1 (permalink)
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Question Demon possesed computer, please help!

NZXT Phantom white case
i7-2600K 3.4 sandybridge
originally gigabyte GA-Z68XP-UD3P LGA 1155 z68 chipset
-replaced with a new MSI Z77A-G45 Thunderbolt LGA 1155 Intel Z77 afterthinking my gigabyte might be bad
G.SKILL ripjaws 8 GB (2X4GB) DDR3 1333
Radeon HD 6700 series
1000W DELL power supply
multiple HDD
-Western Digital X2
-Seagate X3
Windows 7 Ultimate 64-BIT (legitimate)


INTRO
Ever since day 1 when I bought my computer it has never worked right, and $1000 in, it has really ****ed me off for a long time. I'm the computer guy for all of my friends and family and know what I'm doing quite well. One of my friends is a computer engineer and does high level IT work, he still can't figure it out. I have done benchmark tests on all of my hard drives, my ram and my CPU with no errors and great performance. My only idea is possibly the power supply, but the voltage levels are fine and stable.

TL;DR my computer is ****ing me off due to not just gremlins, but full on demon possession with no identifiable faults.

Massive list of problems
1) Main problem is that all of my hard drives will "randomly" be detected and then suddenly will "disappear" and sometimes come back a short time later. The only exception is my C drive which never disappears allowing the OS to run uninterrupted...usually...
2) Recently, me and my buddy observed the voltage levels of the power supply through the bios for a few hours, didn't change any settings, then when I rebooted everything worked, of course, and stayed this way for about a month and a half. One day, I restarted it and problems are back and after post the drive that worked for 1.5 months says I need to change boot priority and the only drive that works is an old OS drive that had been "corrupt" on my computer previously. I hadn't changed any settings or installed/uninstalled programs for a week.


If you have read this far, thank you. I am out of ideas, short of buying an entirely new system. I have changed everything that I can think of out and trying the components in friends' computers and they work fine. I have talked to everyone I know and they have no idea. Please help!!
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Old 05-31-2013, 11:25 PM   #2 (permalink)
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Default Re: Demon possesed computer, please help!

I was never aware that Dell even made a 1000W psu, Have you replaced the sata cables and checked the cmos battery?
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Old 05-31-2013, 11:27 PM   #3 (permalink)
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Default Re: Demon possesed computer, please help!

It's a Dell replacement power supply off of ebay, seemed legit at the time...once I get a bit of money I'm gonna replace it just to be sure.

I have changed out all sata cables multiple times and cmos battery is good
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Old 06-01-2013, 03:58 AM   #4 (permalink)
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Default Re: Demon possesed computer, please help!

I'm putting my money on that psu.
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Old 06-01-2013, 01:29 PM   #5 (permalink)
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Default Re: Demon possesed computer, please help!

Good to have multiple people confirm my hypothesis before I spend the money. I'll swap it out when I can and see what happens
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Old 06-02-2013, 03:07 AM   #6 (permalink)
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Default Re: Demon possesed computer, please help!

I am running a newer thermaltake psu and the problems persist...any off the wall suggestions? I'm willing to try anything at this point...
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Old 06-02-2013, 01:34 PM   #7 (permalink)
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Default Re: Demon possesed computer, please help!

From checking the reviews on that board...your not the only one with a problem

Gigabyte P67/Z68 boot cycling problem

GA-Z68XP-UD3P boot loop?

GIGABYTE GA-Z68XP-UD3P LGA 1155 Intel Z68 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard - Newegg.com

Gigabyte z68xp-UD3P boot loop? - Chipsets - Motherboards

Google shows more links to various sites, looks to be an issue with the board itself with no obvious fixes
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Old 06-02-2013, 01:45 PM   #8 (permalink)
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Default Re: Demon possesed computer, please help!

I bought a new MSI board with amazing reviews because I thought this might be the problem to no avail. I just put a borrowed PSU in and after testing it out it did stop the main problems, but it seems that there are a couple other problems coming from different sources...
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Old 06-02-2013, 03:06 PM   #9 (permalink)
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Default Re: Demon possesed computer, please help!

Are you overclocking?
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Old 06-02-2013, 07:43 PM   #10 (permalink)
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Quote:
Originally Posted by unseatedpilot View Post
I bought a new MSI board with amazing reviews because I thought this might be the problem to no avail. I just put a borrowed PSU in and after testing it out it did stop the main problems, but it seems that there are a couple other problems coming from different sources...
Did you do a clean install with the new board?
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