P8Z68 V PRO frequent restarts/reboots the system

[BrianTho2010]

What is with the Vcore? You said in prime 95 its 1.248, but the Asus utility reports 1.65 volts? What is your EFI setting for the CPU voltage and what does the latest version of CPU-Z report under load?

 

[Raja@ASUS]

what is BIOS 0651?? I used f5 BIOS from Gigabyte...

The response you have quoted was for Pristine and is post number 2. This has nothing to do with a Gigabyte board.

-Raja

 

[pristine]

i think, as you are continuing to experience rebooting issues, you should consider removing cpu heatsink/fan, carefully releasing cpu socket clamping lever and lifting out cpu from motherboard. please use magnifying glass to examine the small wire contacts of the mobo cpu socket assembly - this will take about 20 minutes (using torch/flashlight) - NO contact should touch another contact - if any contact appear bent or pushed to one side, pls rma motherboard.

also, I would clean heat spreader of cpu and reapply tim (whichever brand you are using) and remount cpu heatsink fan to cpu/motherboard.

i have assumed that when you assembled motherboard to case, correct stand-offs where used and m.b. mounting screws/nuts/knurled screws were not overtighened possible resulting in random dc electrical short?!?

i have also assumed that the placement of cpu into m.b. cpu socket/frame was correct/first attempt and all cpu socket pins are in v. good condition w/o any damage...

regarding the o.s. - have you downloaded all patches / service packs ? also if you loaded 32bit os - than all apps 32bit or if you loaded 64bit - than all apps 64bit AND NO software conflicts... hopefully yes...

Hi again,
Sorry for my response-timeout! It is weekend here actually and no access to the system!

I took the mobo and the components out and took them to the person who assembled the pc. (i could not take the entire case since it is too heavy)
Actually he tested the system with 2 ADATA dram modules and there was reboots again.
I have left the parts in his shop to test it with other PSU.
If there is no luck, I think he is supposed to take the cooler out to check underneath.

I will notify him of your instructions as well.

I do not know if the screws were over tightened or not. I just know that with the mobo out of the case I still had the reboots. I hope the screws were not over tightened in the first attempt.
I have only checked the stand-offs to be correct.

Checking the CPU and the socket contacts will be done next (I preferred not to touch the CPU/cooler, the guy in the shop will do it)

As for the patches, I downloaded almost all the drivers, etc from ASUS website. It took almost half a day.
But unfortunately, I did not have time to apply them. (I will)

However, I doubt if it will help with reboots in bios!

EDIT: For applying the patches; Am I suppose to unistall all the asus things that I installed with ASUS CD and then install the patches? Or I can install over the old ones.
Also, I have downloaded all the utilities, LAN, USB, SATA drivers

 

[pristine]

What is with the Vcore? You said in prime 95 its 1.248, but the Asus utility reports 1.65 volts? What is your EFI setting for the CPU voltage and what does the latest version of CPU-Z report under load?

Hi,
I do not have access to the system now. I will let you know.

I have done serveral CLRTC and reset the mobo. The bios EFI showed 3.4GHZ.
I have used XMP profile as per suggestions from GSKIL support (and ensuring 1.5V for DRAMS). This somhow raises cpu speed very little.

With XMP or w/o it, no luck.

 

[e-drood]

forum thread response time-out is one of life's small dividends...

pristine, my comment referred to my 2nd post that mysteriously vanished into space as i submitted to anand forum - my bad if you thought i was referring to you in any way...

i have an additional suggestion: pls ask the pc technician working on your pc, to substitute different intel cpu, i5 or i7 and note whether rebooting persists...

 

[pristine]

pristine, my comment referred to my 2nd post that mysteriously vanished into space as i submitted to anand forum - my bad if you thought i was referring to you in any way...

i have an additional suggestion: pls ask the pc technician working on your pc, to substitute different intel cpu, i5 or i7 and note whether rebooting persists...

lol!
It was ok. really!

This has happened to me a couple of times. Once, 1 hour of work vanished! The other time I had to delete all my cookies and history to be able to post!

I will ask him as you said.
I have to give him some time, until tomorrow evening.

Thanks.

 

[pristine]

Hello.

A little off-topic but I have to say:

For almost 3 weeks I have been dealing with the ASUS warranty.
They finally returned my own mobo declaring 'No Problem' !!!

I simulated the reboot problem in BIOS in front of a technician, for 2 times.
Again they have promised for another 5 days!

Asus seems to have a warranty dept. in Dubai where they repair the defected boards.

ASUS in Iran, very bad service! Terrible in fact.

 

[bankster55]

pristine:

Restart on case not working is troublesome
Are you using Q connector?

Could have cold solder joint on bios chip leads, or flakey chip, tho you did do a flash successfully.

However, the power seems to be interrupted in an event 41, which would explain bios resets.
You MUST Check all cabling and connectors and make sure ram vidcard etc are all the way down and HDD power are all the way in.
CPU fan connector, all the way in, in right place - 4 pin mobo connector, not 3.
110 power sockets - are they old and worn?
Some of your PSU connector leadouts possibly are not making full reliable contact on 24 pin ATX or CPU+12V 8 pin. If angled too sharply during install, the females open up. You just have to try another PSU - cheapo, low power - whatever.
It would be nice to know what 1000W PSU you have.
You could also borrow a UPS from somewhere and see if it alerts.

On your Corsair water cooler, is the back plate plastic or metal? It sits right over the 5 CPU surface mount caps. Might also want to check to see if soldered component leads sticking out from back of mobo arent too close to metal case plate.

Unbelievably, Realtek 2.24 drivers can do this, but not in bios that I know of.

Bad boort device LED could come from your USB stuff which is seen as HDD type device by bios, but you say you removed them all. However i would try a monitor with NO hub.

You MUST set your HDD as first boot device in EZ page to test. And do a mouse rollover to make sure its the boot HDD, nothing in front of it to left.

Just noticed your post saying they found no prob. Which lends support to your own power situation or PSU or cabling. The fact you are in Middle East also adds to this.

Edit: to stop losing your posts go to advanced mode.

 

[e-drood]

pristine

i agree w/ bankster55 & would like to add:

as bankster mentioned last para - pls post details of your pwr supply - it may be earlier "design/compliance" & not entirely compatible w/ your asus mobo - even though pwr supply newly purchased/newly manufactured

if your power supply has module cables - one of the "cables" may have partially broken/cut wire to one of the connector pins and may begin to separate when stressed...

 

[pristine]

Hello Every One,

Also, Thanks to Bankster55 and e-drood.

Actually, the second time I took the mobo for RMA, they have completely changed the mobo.

I tested the mobo out of the case it worked fine.

I hope everything go well after installed in the case.

I would like to thank every one for your generous help.

Note: The PSU I purchased is HP-1000-G14C-GOLD from High Power:
http://www.highpower-tech.com/eng/product_page.php?class=20100526175740&id=20100629114403

It is not completely modular, the mobo power cables come directly from inside of the psu as well as sata devices power cable.


-Edit:
The Start Button on the previous mobo did not work either w/o QConnector. Even the short-circuit pins (jumpers) did not function correctly.