Asus Crosshair V boot problems

G

Gator11

New Member
Hi, I'm new to the forum. I've built a couple of pc's in the past. Hopefully someone here may be able to help me out. I recently built a gaming pc from parts off newegg. The problem I've been having is when I try to power it up, it will randomly not boot and the fans on the video cards come on at full speed for some reason. All the lights come on like the computer is working but just a black screen. After powering completely down and back on (sometimes many times) it will boot and everything works perfectly. Its very random when this happens. It will work fine for weeks but then start acting up again. I thought about returning the mobo for a new one but I'm not sure that's the problem. Specs are as follows:

Mobo: Asus Crosshair V Formula
CPU: Phenom 2 x6 1100t
Memory: 2 sticks of Gskill Ripjaws 2000mhz 4 gigs each
Video: 2 XFX Radeon 6970's in x-fire
PSU: Antec 1200 watt
HDD:4 Western digital 500gig, RAID 0
OS: Windows 7 64 bit

Thanks in advance
 
It's the psu definitely, i had the same exact thing happen with my emachine's oem psu and stuck in my other and it worked perfectly, just doa it if you still can. and also, although a beast of a system it is, 1200w is a good bit of overkill, prob only needs 900 or less i think.
 
Gator11 said:
Hi, I'm new to the forum. I've built a couple of pc's in the past. Hopefully someone here may be able to help me out. I recently built a gaming pc from parts off newegg. The problem I've been having is when I try to power it up, it will randomly not boot and the fans on the video cards come on at full speed for some reason. All the lights come on like the computer is working but just a black screen. After powering completely down and back on (sometimes many times) it will boot and everything works perfectly. Its very random when this happens. It will work fine for weeks but then start acting up again. I thought about returning the mobo for a new one but I'm not sure that's the problem. Specs are as follows:

Mobo: Asus Crosshair V Formula
CPU: Phenom 2 x6 1100t
Memory: 2 sticks of Gskill Ripjaws 2000mhz 4 gigs each
Video: 2 XFX Radeon 6970's in x-fire
PSU: Antec 1200 watt
HDD:4 Western digital 500gig, RAID 0
OS: Windows 7 64 bit

Thanks in advance
Click to expand...

Sure you got all the standoffs in the right places? Have all the PCIe power connectors plugged into the cards? Got the 4/8 pin CPU power connector plugged in? In the bios what is the memory set at. Your not trying to run it at 2000 are you?

jonnyp11 said:
It's the psu definitely, i had the same exact thing happen with my emachine's oem psu and stuck in my other and it worked perfectly, just doa it if you still can. and also, although a beast of a system it is, 1200w is a good bit of overkill, prob only needs 900 or less i think.
Click to expand...

Dont be telling people that right off the bat. You have no idea if its the power supply yet, much less telling them to RMA it without even asking any questions. And I dont want to hear one of the blah,blah,blah B/S stories.
 
jonnyp11 said:
It's the psu definitely, i had the same exact thing happen with my emachine's oem psu and stuck in my other and it worked perfectly, just doa it if you still can. and also, although a beast of a system it is, 1200w is a good bit of overkill, prob only needs 900 or less i think.
Click to expand...

LOL, that took us a whole 2 days to establish and even then yours was a much much more rubbish PSU that the OP> The OP's PSU looks fine. This to me looks much more like a mobo issue.

To the OP, a bios update came out 2 weeks ago to fix system stability issues. Ensure you have updated to 0705 after the normal back up routines.
 
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actually ya'll were saying it on the first day but guaranteed it almost on the 2nd or third, and yes prob wasn't smart to say it that way, but there is a good chance it is the psu if it's the exact same description, but for the op, try unplugging it before starting the next time and if it boots fine on the first try then it is literally like thsame thing i experienced, and every manufacturer has a few duds so even though mine was a pos psu it isn't impossible for him to have the same issue.
 
Right now I'm running a slight overclock. My memory speed is something like 1878. I couldn't get the full 2000 because the memory controller can't take it. Anything higher than 1900 I run into stability issues. Not sure if this has anything to do with it though as it does the same thing on completely stock settings. This thing runs flawless once I can get it to turn on. Definitely have to check on that bios update maybe that will fix it. I'll update as soon as I do that.
 
Anything over 1600 gives a AMD memory controller a hard time. Have you tried bumping up the CPU/NB voltage? Those crosshair boards to me have always been problematic, I try to avoid them.
 
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