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  Dead i7? Failure to Post 
 
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Joshua Mitchell Jul 11, 2010, 05:47pm EDT Reply - Quote - Report Abuse
Private Message - Add to Buddy List Replies: 19 - Views: 5590


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micro Jul 11, 2010, 06:49pm EDT Reply - Quote - Report Abuse
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>> Re: Dead i7? Failure to Post
From a quick google search, this seems to be a somewhat common problem. The authors of the other posts have never said what they found....

I would suggest getting ahold of evga tech support. M ake sure to tell them every thing that oyu have done to try to fix the problem. Such as 1 stick of ram at a time and try the black slots and the grey slots.

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<a class= Jul 11, 2010, 06:55pm EDT Reply - Quote - Report Abuse
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>> Re: Dead i7? Failure to Post
You could try disconnecting the system from power for 30 mins and taking out the battery, it will reset all settings to default. See if it posts then. Also make sure you videocard is plugged into the first PCI-E slot..

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Joshua Mitchell Jul 11, 2010, 07:13pm EDT Reply - Quote - Report Abuse
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>> Re: Dead i7? Failure to Post
Thanks for the replies.

To Micro: I have looked at the google search for that as well and have found the same results you have, and yes the majority of the cases seem to be caused by faulty CPUs but a variety of other issues as well. I do intend to call them a second time here shortly.

To Sovietdoc: I have disconnected as I write this, will post the results once I let it set for a while.

Do you know if the RAM voltage specifications I have seen (1.6V for i7) is accurate? For many RAM sets sold on Newegg are designed to run at 1.65V.

micro Jul 11, 2010, 07:27pm EDT Reply - Quote - Report Abuse
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Edited: Jul 11, 2010, 07:35pm EDT

 
>> Re: Dead i7? Failure to Post

Do you know if the RAM voltage specifications I have seen (1.6V for i7) is accurate? For many RAM sets sold on Newegg are designed to run at 1.65V.[/quote]


1.6V should be about the middle of the voltage that the ram is capable of (green in bios). I think that is at its stock settings, so you can easily go + or- about 1volt.

The only reason to go higher is if you have instability or if you are overclocking. Otherwise, that shouldn't be the problem.


GA-Z68X-UD3H-B3, 2600k @ 4.0
16 gig Corsair Vengeance
Evga gtx 260 216, samsung 2253lw"
Baracuda 7,200.12 CoolerMaster 212 +
Win 7 64, fsp fx700-gln, Razer DA,G15
Evil is powerless if the good are unafraid
Silence in the face of evil is it's self Ev
<a class= Jul 11, 2010, 07:36pm EDT Reply - Quote - Report Abuse
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>> Re: Dead i7? Failure to Post
You might also want to try booting with a single stick of ram.

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Joshua Mitchell Jul 11, 2010, 07:40pm EDT Reply - Quote - Report Abuse
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Edited: Jul 11, 2010, 07:40pm EDT

 
>> Re: Dead i7? Failure to Post
Thanks for the reply but I believe I misspoke.

I know that the voltage for the RAM is okay but I meant the voltage that the memory controller on the CPU can withstand. I have seen on other sites that the voltage the memory controller on the i7 is designed to handle is ~1.6V.

For example Yellowbeard's post at http://forums.anandtech.com/showthread.php?t=2033842, and this quote from hardware secrets: The memory controller integrated on Core i7 accepts only DDR3 memory (up to 1.6 V, memory modules which require more voltage than this will not work and may even damage the processor) http://www.hardwaresecrets.com/article/708. I have failed to find a legit source, like something from intel and was curious if this was true or not and if so, could running the RAM at 1.65V have caused my problem?

Joshua Mitchell Jul 11, 2010, 07:54pm EDT Reply - Quote - Report Abuse
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>> Re: Dead i7? Failure to Post
To Sovietdoc:

I have tried each stick of RAM, 1 stick at a time, in all three slots, and every combination of 3 sticks in each of the three slots as well and nothing changes

After removing the CMOS battery and letting it set powerless, it still will not post.

The position or for that matter, even having the graphics card in the computer or not, has no effect.

BoT Jul 11, 2010, 08:38pm EDT Reply - Quote - Report Abuse
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Edited: Jul 11, 2010, 08:44pm EDT

 
>> Re: Dead i7? Failure to Post
yes the memory voltages claim is true and correct, however, that is manufacturer spec.
most products run well outside of manufacturer specs.
i would have hoped that someone would have made you aware of that since you are overclocking your system.
obviously running your cpu at a higher speed that it is rated for is running out of manufacturer spec.

to your problem, your chip should run fine with 1.675v for dram as there is always some provisioning. there are plenty of people running it even higher then that but i would not recommend going beyond that.

did you attempt a bios update? did you switch to any of the other bios rom's? and see if it boots?

i am not sure why they told you it might be the cpu after suggesting to check your ram.
i have not heard of too many i7's memory controllers to go bad. usually the cpu just becomes so unstable that it shuts down.
are you able to run memtest on the system

edit: nvm my bad, i thought the board has multiple bios

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Joshua Mitchell Jul 11, 2010, 10:19pm EDT Reply - Quote - Report Abuse
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>> Re: Dead i7? Failure to Post
Well we tried the RAM and assumed that the likelyhood of all 3 sticks going bad simultaneously was slim to none. Also, the EVGA tech said that other instances of this issue a new cpu fixed the problem as well as many articles I've seen online.

I realized about overclocking with the clock speed of the CPU but i didn't realize that the standard RAM voltage for the i7 was less than that of the kit I had bought.

I can't run memtest, doesn't the computer have to at least boot to do that?

G. G. Jul 11, 2010, 10:44pm EDT Reply - Quote - Report Abuse
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Edited: Jul 11, 2010, 10:46pm EDT

 
>> Re: Dead i7? Failure to Post
It is plausible that it could be the cpu that has bit the dust... If EVGA thinks it is a memory issue... the cpu could be the culprit since the mem controller is on the cpu versus previous generations had the mem controller in the north bridge.

you've done pretty much everything... the crappy part is that there is a slim chance that it could be the motherboard. but you wont know until you change one or the other... too bad you dont have a spare 1366 motherboard or cpu to test with.... at this point, I would probably go for the cpu. Call up Intel, your cpu should still be under warranty.... there is an option when you talk to Intel is the option to get cross ship.. but this will cost you 25.00. its worth it... what happens is that rather than sending your cpu to them first...... they ship a new cpu to you first for a cost of 25.00. It is shipped overnighted. Then you have 30days to send in your cpu to them... of course they hold your credit card for hostage until you send in your defective cpu... otherwise...... you know what happens.. Call first thing in the morning... get tech support to approve an RMA and then send you over to the folks that handle the cross ship handling... and it will get sent out the same day and you will get it the next day.

I had to RMA my Q9550 a couple of months ago. It went very well. I was back up and running the very next day. Tell tech support about you dealing with EVGA and what the error codes indicates that the cpu is defective. Do not mention about any OC'n....


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BoT Jul 11, 2010, 10:45pm EDT Reply - Quote - Report Abuse
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>> Re: Dead i7? Failure to Post
check the socket on the board and the cpu for any burn marks.
can you tell who manufactured the actual socket the cpu sits in?

You can either be part of the problem or be part of the solution.
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Joshua Mitchell Jul 11, 2010, 10:57pm EDT Reply - Quote - Report Abuse
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>> Re: Dead i7? Failure to Post
Thanks G.G. thats what I had seen too. I'll be sure to contact Intel asap, as for overclocking, what overclocking? haha.

To BoT, I see no burn marks on the socket (or the CPU for that matter) and I don't know nor can find who made my socket.

BoT Jul 11, 2010, 11:37pm EDT Reply - Quote - Report Abuse
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>> Re: Dead i7? Failure to Post
did you change any other voltages when you overclocked?

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<a class= Jul 11, 2010, 11:59pm EDT Reply - Quote - Report Abuse
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Edited: Jul 12, 2010, 12:00am EDT

 
>> Re: Dead i7? Failure to Post
If it's a videocard problem, your system would load up regardless, you'd see HDD's loading windows and everything, the screen would just be black.

If its a ram/mobo problem, the fans would be on but the system won't post.

According to the stuff I googled up everyone recommends to run at 1.65v as a max. So if you never went above, youre safe and it probably isn't the cpu. If you went above then your CPU is prolly fooked.

I would suggest to get a replacement mobo.

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BoT Jul 12, 2010, 12:46am EDT Reply - Quote - Report Abuse
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>> Re: Dead i7? Failure to Post
the only thing that keeps me thinking is the dram voltage is actually just for dram not for the memory controller since the controller resides on the cpu die since i3/i5/i7

1.65v for dram is standard, not jedec standard but industry standard.
it's VTT rather then vdram that would kill the cpu.
thats why i asked if you changed anything else.

here is a good read from the evga forums regarding voltages.
http://www.evga.com/forumsarchive/tm.asp?m=100494809&mpage=1&key

also, did you use the overclocking guide on the forum?
http://www.evga.com/forumsarchive/tm.asp?m=642527

there is good, valuable info there

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Joshua Mitchell Jul 12, 2010, 11:44am EDT Reply - Quote - Report Abuse
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>> Re: Dead i7? Failure to Post
Thanks for explaining the voltage thing to me, the links were informative.

The only voltage I changed was the DRAM Voltage and the frequency (detected at 1033, needed to be 1600) but I didn't change anything else, manually at least.

And some discussion about the video card, I know its not the video card, it doesn't get to the part of the post sequence involving the video card.

G. G. Jul 12, 2010, 01:48pm EDT Reply - Quote - Report Abuse
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>> Re: Dead i7? Failure to Post
you called up Intel to RMA that cpu yet????? if not.... get on the stick and get it done...


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bossa ritchie Jul 14, 2010, 03:22pm EDT Reply - Quote - Report Abuse
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Edited: Jul 14, 2010, 03:27pm EDT

 
>> Re: Dead i7? Failure to Post
The CPU itself requires the RAM to be running at 1.65V or less.
http://www.ocztechnology.com/products/memory/ocz_ddr3_pc3_1280...le_channel if this is the RAM you have then it also runs at 1.65V.

So having the DRAM set at 1.65V will mean that is not what caused the problem.

Joshua Mitchell Jul 14, 2010, 09:00pm EDT Reply - Quote - Report Abuse
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>> Re: Dead i7? Failure to Post
Thanks everybody, but sorry about the delayed response, work got real intense this week : (.

Got the new CPU today from Intel, and I'm still having the same problem, guess its time to RMA the mobo.


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