Computer won't boot with any overclock.

linktoinsanity

linktoinsanity

linktoinsanity

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I have the system in my sig, but if I upt the fsb at all then xp just gives the blue screen of death and I haven't tried vista when overclocking.

I have a DFI X48 motherboard and it has lots of options in the BIOS to tweak. I've tried turning the NB voltage up (1.3V), the CPU Voltage up (1.1V) and the memory voltage up but to no avail. The memory has been tried unlinked (I never overclock my memory if I can help it) but the system still wont boot. I've tried 3.4Ghz and before that 3.6Ghx but it won't boot into xp, so I thought I'd ask you overclocking experts on here. I could get an E8400 (on a different board) to 3.6Ghz and an E2200 to 3Ghz so I'm not completely new to overclocking, I'm just a modest one. Tbh, I'll probably drop my system back to stock speeds anyway after I've found how high it'll go, I just want to find out what my CPU can do.

The VID is 1.1V by the way and it's on a stock cooler. I know stock cooling isn't the best but surely it should allow for a modest overclock, the other two CPUs mentioned above did.

Thanks,
Matt.
 
you might need to try the voltage higher than what you are setting it at, i know that is the main problem when it isnt booting into windows for me
 
I have tried higher. I though 1.4V was the safe limit for a Core 2 based cpu? It still refused to boot on that at 3.4Ghz. I'll try again tonight. Thanks Vigoro, any other suggestions?
 
Nope my knowledge is limited and i have only overclocked a Q6600 which takes higher voltages that 45nm processors, so no use comparing it :p
 
Update BIOS? Perhaps an issue with that.

Although if easy enough to do i'd try with Vista, might be XP deciding to take a flakey for whatever reason
 
Let me say to start with ; I am not an expert but in the hope that it assists

Run everything at standard and get readings of voltages etc running through the various components.

Again at standard give it a bit of a stress test to see how it reacts.

Cannot imagine that it's temps but just check both idle and load just in case.

I have no experience of your board so cannot give specific comments - I would have thought that your combo - cooler excepted - would be good for at least 3.4.

My thoughts are that to start with just check it's all stable at bog standard then think in terms of clocking 'slowly'

Good luck :D Hopefully someone with some expert experience can help
 
I'll see what vista does thanks sweeny, I'll also write down the voltages and check the stability on stock, thanks agedidiot. The BIOS is already fully updated. I had to do that to get it to recognise my chip. Thanks though guys. I am slightly annoyed though, you'd have thought the experienced overclockers would have flocked to this thread to help, guess not :(
 
My X38 only needs the voltage pushing on the DDR2 and the CPU. Everything else is left at stock - that's with this e8500 @ 4.5ghz.

DDR2 is @ 2.15v (0.05v over the rated voltage of the OCZ dimms i'm using) and the cpu is @ 1.32v for the overclock.

When i first started clocking this board i actually found that extra voltage on the NB actually had a negative effect. :(

I'd reset to stock settings, then up your DDR2 voltage to its rated speed and try clocking again. That e8400 should do at least 3.4ghz on stock voltage. All the wolfdales i've had (e7200 and a couple of e8500's) have managed 400mhz clock boosts this way.

gt
 
I think your voltages are too low, your NB wants to be a shade higher 1.35 (well it does on mine but board is different so dont take as gospel) and your CPU is really short, 1.1v is very low, mine takes about 1.3 and thats a dual core, running quad yours should need more, so I suspect this is the problem area. But as others have said start low, and work up, not high and down
 
Hey Mattf121,

couple of things quickly, first have you run memtest from a CD-ROM too see that the memory is clean?

Secondly have you tried the wee overclock you are attempting with all voltages on *auto*

Lastly if your memory sticks have good SPD settings the board may set them up nicely, maybe leave the memory settings on auto too!

Sounds like your board has been hamstringed by bad manual override! :o
 
Thanks for your help guys. Reset BIOS to Optimized defaults and now booted at 3.4Ghz, with a bit of tweaking all will hopefully be well for higher speeds. Only on stock cooling at the moment (I couldn't get my Zalman fitted) but hopefully will clock higher (4Ghz with a Q9650?) with a better cooler.

Thanks again.
Matt :)
 
Well, after successfully getting to 3.4Ghz, I restarted and went for 3.6Ghz. The computer wouldn't have it and both Vista and xp refused to boot :( Then it wouldn't boot to 3.4Ghz again. I will leave memtest running overnight to see if the problem is my memory, but apart from that I have no ideas.
 
your core v is way to low the last 1 i tested was on air and it would not boot into windows with less than1.35vthat was 3.4g i find all the quads like a bit voltage hump rampage extreme nb 1.6 sb 1.7 different boards but the cpu still needs the volts
 
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