OC problem with Gigabyte P35-DS4


Recently i upgreaded my pc with new graphic card and psu.
Before i had Radeon 4630 with xilence power 450W
Now i have R4870 with OCZ Modxstream 600W.
After that change i cant OC my old CPU (Core2 Duo E6300 1,86GHz).
I had it OCd only to 2.3GHz... but now even after 10MHz change i have a reboot.

I cant say if that is graphics or psu cos i already dont have the old ones :(
Strane thing is... after i updated my bios i have bigger problems:
after i powerd on my pc safety catches went off in my flat.
After i reversed back to old bioss its ok now... but i have to use cable extender (you know the one for pc with switch on it).

I took this new PSU to support and they said its ok and that thye have no problems with it.

If you could tell me potential couses for this problem and alos
if its possible could you give me bios settings i can use to properly OC.

Soon ill be changing my platform for Core i5 (graphic card and this psu are supposed to be in it) and i hope i wont have problems there.

Thx in advance and sorry for my english... its not my 1st language.
11 answers Last reply
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  1. it sounds like the mobo is having problems running the CPU

    try a different mobo or CPU
  2. But until now (for over a year) it was running very well with this CPU.
    It is running now as well... but i cant OC what so ever. I used to be able to... but now i cant (after i changed PSU and graphics).
  3. yeah which is why you have to try a new mobo or processor so that you can narrow it down to either one
  4. what is the motherboard?
  5. Need memory specs to give you a set of OC paramenters...

    Sample here:
    (different MOBO & processor!)
  6. GEIL Ultra 2x1Gb 800MHz 4-4-4-12

    steevyp: Gigabyte P35-DS4 rev. 2.0
  7. Have you connected all your power wires to the motherboard? (hint: 8 pin extra power)
    Also, have you flashed to the latest BIOS?
    What are your overclocked settings you are trying? What about your Vcore? Have you tried raising that?
  8. Yes. all power connectors are there (including 8-pin one).
    I tried flashing to newest version... but had to come back to my old one cos i had more problems (see main post).
    Before for a year i was just upping my fsb a bit and thats it... all was on auto.
    Im sorry but im not and expert realy and that is why i wanted you guys to suggest me exact parameters how to set it up :(
  9. bilbat could you give this set of OC parameters?
    If its not much of a problem of course
  10. A lot of this is 'canned' - so if you've seen parts of it before, skip ahead!

    Intel E6300 1066FSB x7mult 1.86GHz .85-1.5V SL9SA

    If you haven't yet done it, pull out two sticks, start with a BIOS' "Load Optimized Defaults"

    Before we start ramping things up, I want to teach you a new skill involving the BIOS: Do the <DEL> at the boot to enter the BIOS; notice, at the bottom, the <F11> "Save CMOS to BIOS" - hit this, and you should get a menu that will show a number (the count varies by BIOS) of empty 'slots', each of which will store an entire set of BIOS parameters, to be re-loaded from the corresponding <F12> "Load CMOS from BIOS"; this is a wonderful overclocker's feature. What I do with it, is to save my 'baseline' working parameters, so if I change something that 'irritates' the board, and forces a reset of all the parameters to defaults, or, even worse, get so screwed up I need to do a 'clear CMOS', I can get back to my starting point with no effort, and without having to remember 85 separate settings! Another thing it prevents is two hours' troubleshooting, having forgotten a change to a crucial parameter - like, "wait a minute - didn't I have the Trd at seven?!" It's pretty self-explanatory, and I alway urge people to start right away by taking the time to give the 'slots' names that mean something: in two hours, "Try2" and "Try3" will not be very helpful, but "450@+10MCH" and "450@+15MCH" will! Another use is for 'green' settings; overclocks, as a rule, do not 'play well' with green features, such as 'down-clocking' and 'down-volting'; with the storage slots, you can set up one profile, say "Green", with all the settings at 'stock' values, and all the 'green' features enabled; another, say "Balls2Wall" with a full overclock, and all the 'green' stuff turned off... Another neat feature of this 'slot' system is, for most BIOS, the mechanism itself will keep track of which ones have booted successfully, and how many times (up to, I believe, a max of five)!

    On the "Advanced BIOS Features" page:

    "CPU Enhanced Halt (C1E)" to "Disabled"
    "CPU Thermal Monitor 2 (TM2)" to "Enabled"
    "CPU EIST Function" to "Disabled"
    "Full Screen LOGO Show" to "Disabled"

    On the "Integrated Peripherals" page:

    Your manual shows "Legacy USB storage detect", but later BIOS say "USB Storage Function" - either way, set to "Disabled"

    On the "Power Management Setup" page:

    "ACPI Suspend Type" to "S1(POS)" (for now...)
    "HPET Support" to "Enabled"
    "HPET Mode" to whichever OS type you're running - "32-bit" if an x86 version, "64-bit" if an x64 version...

    On the "MB Intelligent Tweaker(M.I.T.)" page:

    "Robust Graphics Booster" to "Auto"
    "CPU Clock Ratio" to "7.0"
    "CPU Frequency" - this one can't be set, it's calculated, and will change when we set the next few items...

    ******** Clock Chip Control ********
    >>>>> Standard Clock Control

    "CPU Host Clock Control" to "Enabled"
    "CPU Host Frequency (Mhz)" to "334"
    "PCI Express Frequency (Mhz)" to "100" (not auto...)
    "C.I.A.2" to "Disabled"

    ******** DRAM Performance Control ********
    "Performance Enhance" to "Standard"
    "System Memory Multiplier (SPD)" to "2.4" (there'll be a letter after it, I think there's only one 2.4, but I can't look it up

    as my main system is down...)

    "Memory Frequency (Mhz)" - again, can't be set, it's calculated...
    "DRAM Timing Selectable (SPD)" to "Auto"
    You should be able to leave the rest of the memory settings alone; we haven't changed its actual speed, so it should

    keep working...
    "CPU Vcore" to "1.32500V"
    And that should do it!

    I should point out that getting two reboots in a row here is perfectly normal behavior; it seems that, when you change certain settings (and we don't exactly know which ones - the only sure one I know is Trd - if you change it, I think you get the 'twin' reboot) it boots once to 'see where it's at', recalculates its remaining 'auto' settings, saves them, and then boots again. Three reboots in a row, however, usually indicates that the board was 'given indigestion' by your settings, and is going back to defaults. This sometimes goes astray, and it doesn't get back into proper operation - for example, at this point, mine will sometimes 'lock' itself into 111MHz x a six multiplier - and take a week to do a whole boot - that's time to do a CMOS reset, and use your 'stored' <F12> profile to get back to where you were...

    Good luck!
  11. thanks ill try it out!
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