Q6600/GA-X48-DS4 wont boot when cold??

[docdrow]

Hey all, I'm hoping for your advice/wisdom here.

I just built a system with a Q6600, gigabyte GA-X48-DS4, and 4gb (2 x 2gb) using Corsair Dominator PC2-1066 @ 5-5-5-15T v2.1v

The system runs *rock* solid @ 3.2ghz (400mhz FSB, 8x multiplier). Passes memtest86 all night long, runs linux, compiles kernels, multi-threaded transcodes to ramdisk, etc.

No problems whatsoever.

Except one.. it will not turn on when its COLD... like if its' been off all night.

I have to wait for the gigabyte bios to figure out that it can't boot, which means it goes through about 5 minutes of powering itself on and off.. then finally it boots with stock timings.. I go into bios, change everything back, and its fine until I turn it off again.

I realize this is a voltage issue somewhere, so I'm looking for your advice on what components typically require the bumps to make this problem go away?

Thank you for your help.

 

[Liet]

I had a -very- similar issue (power cycling on/off), and after much hair-pulling it turned out to be my Crucial Ballistix 2.2v RAM would no longer boot at 2.2v after a year of use. Maybe the SPD got screwy, I have no idea...

Before anything else, I recommend you try a cheap stick of RAM that runs at 1.8v and see if that mysteriously solves your boot problem.

 

[Phunk0ne]

I had a X48-DQ6 go DOA when I booted it up, it would do this repeatedly. Tested all my ram (see sig) in my older setup and it worked just fine.
Got my DOA replaced 2 days later. started building every thing step by step before placing it into my case, it worked just dandy.

so.. finally had everything set up inside my case, powered it on... and same problem, went through the power on/off cycle endlessly. So I checked all the wiring, including my pci-e 6&8 pin connector to my gfx, it wasn't completely connected somehow. Reconnected the gfx power and no more problems ever since.

 

[Jessica69]

Seems you're not alone.....just a quick google for your board and cold boot problems brought up pages of people who seem to have experienced the same problem you're having. Most seem to think it's more related to the OC settings than anything else.

Some quotes from other people and their problems with your board (sound like yours?):

From Tom's Hardware's forums:

"I can get a stable 3.5ghz (388x9) @ 1.55volts, +-6 hours prime stable before I stopped it. Everything runs like a dream, I can play games, surf reboot ect with zero probs... Idle 32 load 71. THE PROBLEM: Whenever I power down for more than 10 minutes I can not get the setup to post again! It starts up and the GT's fan goes balls to the wall for about 15 seconds and then starts with my bios settings reset!"



OC'ers Australia site:

"I've been having a weird problem. I'll press the power button, case fans will spin up, lights will flash, CPU fan will spin up... then about half a second after the graphics card fan turns on, it shuts down and repeats. This happens x number of times, then the same thing happens except it doesn't turn off. If I press the reset button, it POSTs and boots normally.

Once booted, no probs at all... Weird. Also, only happens after a "cold" boot, if I restart, it works fine. I'll be leaving my PC on until I get a new mobo next week, took a good half hour to get to the not-turning-off stage this morning."



Xtremesystems forum:

"And the worst (problem) COLD BOOT. When started computer must first boot 3 times, then goes to default and overclock settings must be set again to work - 24/7 overclock i mean .... Never experienced that ... since 965 ds4/dq6 boards . . ."


I'd wager your cold boot problems are OC/BIOS problems. Lots of disgruntled Gigabyte owners out there griping about Gigabyte's BIOS quality.

 

[manimal]

I have a DQ6 x48 and it did similar things when I had the memory timings a bit too tight. Once I loosened them up a bit things got better. If I remember correctly x48 boards do a ram check-the turn off turn back on thing and if something seems off it will reset the bios.
Funny thing my 680i did that a few times before it died a few rma's ago. I am on my 8th now.....

 

[geoffry]

my Gigabyte P35 did the same thing until I switched from an ATI vid card to an NVDA one...no idea why that stopped it from happening.

 

[docdrow]

Appears to be my memory modules. I've ordered two matching sets of the corsair dominators (4 total DIMMs)..

Though both pairs are the exact same part number, exact same timings, voltages, etc...

One has a 'v2.01' and the other pair is 'v3.1'..

The v3.1's boot fine every single time.. the 2.01's will not boot until the system has warmed up... no matter what bank they are in.

RMA time

 

[Stumps]

I've found that my current P35 board does the same if I run the memory timings to tightly (4-4-4-12 at anything over 800mhz), the same problem will occur at any FSB setting above 475mhz with my Q6600...my old E4300 was good for more than 500mhz FSB.