Not sure what to RMA ?

thedoc46

thedoc46

thedoc46

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I'm scratching my head over this.

Brand new i7-2600k, Corsair AX750 PSU, Asus P8Z77-V LX Mobo.

Can't get past the bios screen with the error saying

Power Supply Surges detected during the previous power on.
Asus Anti-Surge was triggered to protect the system from unstable power supply unit!

Press F1 to run SETUP.

If I press F1 as it says on the screen, the screen goes blank and does bugger all.

I've done a CMOS reset via the jumper, but still the same thing.

I've tried a Zalman ZM500 from a different machine. and that psu doesn't even fire up apart from maybe 1/2 second... But not enough to even get me to the error message.

I don't want to try the corsair in my good machine incase it fry's it.

Is my mobo shot? given the fact that both PSU's are failing to get the machine going?

Could it be a CPU error ?

Every time i'm getting a different speed reading on that screen.. eg 3400Mhz one time, another 3403Mhz, another 3413Mhz

I'm a little lost right now.. I know something is shot, but not sure which component.. I wish I had a spare LGA1155 mb or cpu to test, but i haven't.

Any ideas ? Or what would you guess was the culprit ?
 
jeff6475 said:
have you used the standoffs for the motherboard maybe worth checking to see
Click to expand...

yes, i dont think you get away without using the standoffs can you?

I guess I'll start on sending back the mobo the mobo. That's the most likely culprit, given the working Zalman PSU wasn't getting it going either.

If its replacement doesnt help, then the next step is to rma the AX750 and lastly the CPU, if the psu turns out to be fine too.

I may just try and get a another Z77 and IB or SB for my spare PC. That'll help my situation out.

It's hard, cos i had all my new gear working for 2hrs with a new 7950, and starting loading up some games.. Everything was so fast and so smooth... It's really showing up my old Q6600 and 5770's x-fired.
 
Unplug everything PSU wise from everything but the motherboard/GPU. See what it says then, I've had something that sounds the same from a dodgy connection to the DVD drive.
 
What on earth is going on ??

HELP !!!!!!!

I have a new build here. And something very strange is going on. Asus P8Z77 LX-V, i7-Q2600k, 7950, 8gb Corsair Vengence, Corsair AX750 PSU

Last week, I posted this http://forums.overclockers.co.uk/showthread.php?t=18402782

Not sure what to RMA.

Basically, let me cut a long story short !

My computer dies after a few hrs of running well. I replaced the motherboard, and all was well again, for a few hrs, and now its died again.

All symptoms previously pointed towards the motherboard. Because I tried a perfectly working Zalman ZM500 PSU, to eliminate a bad PSU and the machine with that power supply installed, wouldn't even turn on. I put it back in my old machine and it powered my old machine straight back on.

Anyway the error I'm getting is

Power supply surges detected during previous power on. Asus Anti-Surge was triggered to protect system from unstable power supply. Press F1 to run setup.

img1238n.jpg




My old motherboard, I couldn't even press F1. Anyway rec'd a replacement yesterday and once again, everything was hunky dory for a few hrs.. Turned it on this morning and bam same thing as the last one.. EXCEPT this time it allows me back into the BIOS to give me a little more info...

img1236y.jpg

img1237hz.jpg


So it's saying the 3.3v is low..

Is it possible that I have a bad PSU that's frying my motherboards one by one? I don't understand why they work great for a night then die the next day...

I don't know if this motherboard is now shot? Last time I tried absolutely everything, from such as resetting the CMOS jumpers, trying a different powersupply, VGA, the whole lot, before deeming it was as dead as the dingo. However my latest mobo, actually lets me in to the BIOS... So maybe with a new PSU and cmos reset, i may be able to get going again ?

What could be causing this drop in 3.3v Given that I can actually get into the BIOS this time, I could choose to ignore it. But I'm not really that sure of the consequences.

Anyone have any idea of what's going on? BTW, everything has been running at stock, i've not tried overclocking anything on this new setup.
 
Well problem is, that nearly anything can be causing it, So I guess you have to first establish if its Hardware or Software problem (doubt its software though), I would eliminate this by putting new windows and flashing BIOS. Hardware, you know the drill I guess... Leave minimal components intact and go from there, dont be quick to judge, when my computer went into loop of death a lot of people (on other forums) suggested sending back the mobo, but all it needed is to reset bios :)
 
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Well its unlikely, anything can be causing it. I would say. Most probably a bad psu. seeing that the 3.3v rail is showing as low. Besides, it is a new o/s, and BIOS was flashed to latest ver as part of procedure before plugging in my new 7950.

I don't see how it can be anything else, other than either a bad PSU or bad batch of Asus mobo's.
 
Well I've just gone out and bought another Corsair GS600 to test with, seeing that, that is now the most likely culprit..

When i'm done with all this damn testing, i'll have enough spare hardware to build a new PC !!!!!!! Hoping my new replaced mobo isn't fried ! I don't think it will be cos its letting me in the BIOS unlike the old one. So hopefully a new PSU and i'll be back in business. I'll know in an hr or two.
 
While I'm here waiting for some updates to download, i may aswell update this thread for the sake of others searching a similar problem.

So far it does seem that the AX750 is at fault. I'm not counting my chicks yet until the eggs have hatched, since problems didn't start before until a few hrs into running. But anyway, new PSU installed, and voltages seem to be on par. Corsair are doing an RMA on my PSU. So far so good. Keeping my fingers crossed.

The good news is this current mobo isn't fried unlike the last one.. Still not convinced an undervolt could damage the mobo? Anyone care to comment on that? I would like an answer on that.

In the meantime, i'm off to enjoy my new rig.
 
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thedoc46 said:
The good news is this current mobo isn't fried unlike the last one..
Click to expand...

Just because the motherboard is working does not mean it's not damaged. Damage from surges can be accumulating, only way to tell is over time. At least you have the manufactures warranty on the motherboard.
 
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