Bios doesn't seem to keep the settings on e4300 OC

Using the ds3, and these settings work fine usually (boots into windows, stays stable, etc etc), but when I decide to restart, it sits at the logo, and sometimes it posts and goes onward to windows, other times it just restarts and goes to bios defaults. I am wondering if this is due to a power supply issue, or if it's a bios issue. I'm running a 480 watt psu, I figure that should be okay on a non-sli/crossfire setup. Anyway, need some help with this issue, here are the settings I'm using (again, they definitely work, usually)

on xms2 ddr2 800 ram (5-5-5-12 at 1.9v)

fsb: 333X9
ddr2 overvoltage - +0.2v
pcie overvoltage - normal
fsb overvoltage - +0.1v
(g)mch overvoltage - +0.1v
cpu voltage control - 1.35625v
12 answers Last reply
More about bios doesn settings e4300
  1. Check if raising fsb overvoltage/(g)mch overvoltage/cpu voltage helps. If not - seems to be PSU issue. What PSU?
  2. alright, I'll give that a shot. it's an antec neo power 480 psu.
  3. gave it a shot, here's an update:

    It still has problems posting, but only when restarting. If I shut down, and turn it back on, it posts just fine. Any ideas?
  4. Well, I doubt it's PSU issue. Are you using Vista? If so - it might be an issue between Vista power schemes & BIOS. There were some posts about it. But issue is not fixed.
  5. nope, xp.
  6. So be sure to have ALL items of Power Management in BIOS disabled, the same with Power Options in XP's Control Panel. Another possibility is that mobo cannot do software-only reboot at all, when OCed. I.e. Asus is ALWAYS doing hardware reboot when OCed, even if you choose Start/Turn Off.../Reboot at WXP.
  7. Could be your mobo.?

    I had one do the same kinda.

    You could restart the comp and overclock it play games allday long
    but if i turned it off BAM nothing.

    It ended up being the mobo.
  8. turned off cpu thermal monitor in the bios, and a few other settings (can't remember what). It works fairly well now, I guess I'll have to do some testing to make sure, but looks like it should be good. Thanks for the help guys.
  9. have you tried clearing the CMOS and redo the OC? i had the same problems.. it resets my OC everytime i restart, i cleared the CMOS by removing the battery for 1 minute and redid my OC and now its ok..
  10. Clear CMOS, start over.

    Turn off ALL of the crap.....C1E, Virtualization, etc, etc. Find it ALL and disable it ALL.

    Lastly, I HIGHLY doubt you'll hit 333x9 = 3.0ghz on 1.325 vCORE on a 4300. No way. More like 1.400. On the S3/DS3 mobo, when it restarts like that and goes ok from a fresh restart, I had that problem........unstable overclock. Your vCORE needs to be increased. The 4300's need alot of juice at 3.0ghz.

    I'll willing to wager a cookie you have an unstable overclock, specifically on the vCORE.


    -vCORE 1.400
    -MCH +0.1v
    -vFSB +0.1v
    -vDIMM +0.1v
    -PCI locked at 100
    -vPCI-e stock

    That *should* do the trick. Hard to say since I'm not there. But I've seen this too many times with the 4300/DS3.

    The last way to verify this is to simply reset BIOS to stock settings. If no crashes, then there's your answer: unstable OC ;)
  11. yeah I know, like I said in the first post, vcore is 1.35 something, it's running stable now.

    Here's another question. Is it really necessary to increase vDimm if I'm running the ram underclocked? It's at 5-5-5-15 at 667 mhz on 2.1 v(rated 5-5-5-12 @1.9v @ 800 mhz). I'm debating whether to change the memory multiplier to 2.5, so I wonder.
  12. Probably not. vDIMM increase for underclock usually isn't necessary, unless your RAM runs at higher stock volts (1.9 or 2.0) to begin with. But generally no.
Ask a new question

Read More

CPUs BIOS Power Supplies Overclocking