Can't overclock my system. A little help you guys

That's pretty much my problem. I just bought a new Corsair TX650 replacing my old stock "600w" PSU. When I go to bios and overclock my CPU and RAM, the screen just freezes. When I'll get lucky enough, it'll boot until the Windows loading thing appears, then it freezes again and my monitor tells me that it can't detect a signal from the video card.

Here's my system:
Gigabyte G41M-ES2L Motherboard
Core 2 duo E7500 2.93GHz
4GB DDR2 800MHz
XFX Radeon HD 4770
Corsair TX650W


I need your help on this one fellas.

Thanks a lot :sol:
12 answers Last reply
More about overclock system guys
  1. so this only happens with an oc atempt?the specs you gave are stock..what oc settings do you use when this happens?i have the same cpu on a asus p5q pro turbo and crossfire'd xfx hd 4850's .i use a 680w psu and have never had a prob.....my rig runs @4.0ghz, what core speed are you trying for?
  2. also try to reseat the ram and your video card,and check that the psu cables are in fact seated all the way
  3. dtechman said:
    so this only happens with an oc atempt?the specs you gave are stock..what oc settings do you use when this happens?i have the same cpu on a asus p5q pro turbo and crossfire'd xfx hd 4850's .i use a 680w psu and have never had a prob.....my rig runs @4.0ghz, what core speed are you trying for?


    yes sir, only when i oc.. i'm running everything stock right now.

    oc settings:
    CPU 2.93 - 3.6GHz or 4GHz later on
    RAM 800 - 1000mhz


    i've also tried reseating the ram and video card and psu cables.
    but then if they're not, i won't be able to log in right now.

    the reason why i bought the corsair 650 is because i want to overclock my system. when i was using my 600w 70% efficiency PSU, i can't overlock as well. maybe there's something wrong with the motherboard? or the bios?
  4. More of a bump than actual help but....

    Did you have an Oc before you got new psu? did it work ok then if yes?
    In your bios, is your ram speed automatically adjusted with your cpu speed?
    unlink it if it is and set ram speed manually,
    http://www.tomshardware.co.uk/forum/240001-11-howto-overclock-quads-duals-guide,
    I'll check back later :)
  5. Motopsychojdn said:
    More of a bump than actual help but....

    Did you have an Oc before you got new psu? did it work ok then if yes?
    In your bios, is your ram speed automatically adjusted with your cpu speed?
    unlink it if it is and set ram speed manually,
    http://www.tomshardware.co.uk/forum/240001-11-howto-overclock-quads-duals-guide,
    I'll check back later :)



    yup. oc @ 3.6ghz.. even right now, im @ 3.6.. i think the motherboard is the problem here, is it not? i'm using a Gigabyte G41M-ES2L Motherboard that came with this cpu
  6. Motopsychojdn said:
    More of a bump than actual help but....

    Did you have an Oc before you got new psu? did it work ok then if yes?
    In your bios, is your ram speed automatically adjusted with your cpu speed?
    unlink it if it is and set ram speed manually,
    http://www.tomshardware.co.uk/forum/240001-11-howto-overclock-quads-duals-guide,
    I'll check back later :)


    sorry if i came off that way...i was realy just trying to help rob11rod paint a better picture so we could help more
    dont mean to bump anybody. just help
  7. Not at all mate, I meant my post was more of a bump than help, sorry for the confusion :)
  8. Hi fellas,

    Don't you think the motherboard is holding me back here? I try setting the Vcore to 1.35v but cpuz is giving me 1.24v only. Maybe that explains why I can only overclock to 3.6GHz at that voltage, it was even unstable.
  9. Oh not to be a bummer but i have a friend that also has an e7500 and he has tryed two mobo's just to be sure,but his e7500 will not get past 3.8 at 1.48750v vcore at this point i said give up .all im saying is all chips are not the same .anyhow have you ever had another cpu on your mobo?also are using 11*333? if so it may not be your mobo's fault. most good lga 775 mobo's will hit around 400mhz at least without any probs.you could raise cvore to 1.38ish see if 3.66 is stable if that works you may not want to go for much more than 1.4v vcore will give........anyhow best of luck sorry about the mix up on my part Motopsychojdn .thanks for letting me know :)
  10. also do you have speed step turned off ?this will lower the vcore at idle if not..
  11. dtechman said:
    Oh not to be a bummer but i have a friend that also has an e7500 and he has tryed two mobo's just to be sure,but his e7500 will not get past 3.8 at 1.48750v vcore at this point i said give up .all im saying is all chips are not the same .anyhow have you ever had another cpu on your mobo?also are using 11*333? if so it may not be your mobo's fault. most good lga 775 mobo's will hit around 400mhz at least without any probs.you could raise cvore to 1.38ish see if 3.66 is stable if that works you may not want to go for much more than 1.4v vcore will give........anyhow best of luck sorry about the mix up on my part Motopsychojdn .thanks for letting me know :)



    I only have one 775 cpu. I'm also tried 11X333 because the max fsb of my mobo is just 1333, but then my cpu at 3.66 even at 1.4v is not stable at all. It loads til windows appear, then the blue screen takes over.

    And the speed step you mentioned, I already disabled it.

    I was just wondering though. In my bios, the vcore appears at 1.4v. But in cpuz, it says 1.248.
  12. Well the fsb dosen't seem to be the hold up.As far as vcore reading in cpu-z,i've seen cpu-z read wrong very few times,however whats set in the bios gose.Do you use speedfan? or any mobo aps?that you could compare it to ,cause if you'r vcore is that low of corse it will not boot windows.Just looking in logs, the friend i spoke of .his e7500 hit 11*333 @1.435v vcore ..i am in no way suggesting you do this but the only action he got at 1.4v vcore was a post thats it...keep us posted please .......btw i dont think your mobo is the cause of that much vdroop,probly a software/sensor glitch
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