Solved E4500 oc

July 17, 2011 at 07:08:00
Specs: Windows 7, e4500/4gb ddr2 800
Ive decided to oc my cpu, until i buy new mb/cpu/ram, since ive bought hd6850 and that should reduce bottleneck.
so my configuration is
E4500 core 2 duo 2x 2,2 ghz / 11x200 Mhz stock
Asus p5k-se
4gb kingstone ddr2 800mhz cl5 / 5-5-5-15
Coolermaster Extreme power plus 600W
HAF 912 Plus with 2x20cm Fans (front, up), 2x14cm (side, rear)

ive managed to make my system stable at 8x350 and voltage at 1,3875v. i set dram to 700mhz and 1.8v since.
http://imageshack.us/photo/my-image...

atm moment i use stock cooler, ive ordered cm hyper tx3. All i want is to hit 8x400 but my voltage is already pretty high so im not sure if ill be able to do it because this mobo doesnt have NB voltage control (asus had some strange explanation for this..). So would it be safe to take voltage near 1,5v (max on spec.) and hit 400 if possible? or can i do something else?


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✔ Best Answer
July 24, 2011 at 15:27:28
There is a small possibility that updating your BIOS may give you the additional settings and possibly improve your ability to boot, but the quote you give makes it sound like you got a board made with inferior components (they 'cheaped' it out on you). You can try replacing your board, but I would recommend not spending too much on it but to save up for a new build completely.
In the mean time try running your CPU at 333x9=2.97GB and your memory at 667DDR2 (333.3 freq) for a 1:1 ratio and see if that works. If it does and is stable and cool enough, you can then try raising your multiplier to 10 for 3.33GB (a good OC) or possibly even 11 for 3.67GB, but that would probably be too much to ask of your board. This will keep your board to 1333FSB instead of 1600FSB which should be easier for it and should get you a nice compromise.

You have to be a little bit crazy to keep you from going insane.



#1
July 17, 2011 at 07:13:56
also in windows /control panel->system/ my cpu is listed as intel core 2 duo e4500 @ 2.20ghz 3,86 ghz. can that bug get fixed ?

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#2
July 17, 2011 at 08:49:26
Did u try to reach 3.2ghz(400 x 8) with stock cooler and without increasing vtt? What about temp(idle and underload)? Max safe voltage for e4500 is 1.5v.


edit
I don't know why win 7 display wrong cpu internal speed, i have the same problem(e2200 @ 2.6ghz, win 7 show e2200 @ 2.9ghz).
We can not fight new wars with old weapons, let he who desires peace prepare for war - PROPHET.


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#3
July 17, 2011 at 11:34:32
i couldnt reach even 7x400 not 8x. temps are 37-39 in idle and 57-59 on 100%

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Related Solutions

#4
July 17, 2011 at 12:54:09
Your board officially supports 1600MHz FSB & the E4500 should have no problem running at 3.2GHz (8 x 400MHz). I can only usupect you have the RAM configured incorrectly. I'm not sure how you're going about it but do NOT use AI Overclocking. Set that option to manaul & configure all the settings yourself. It's very important to maintain a CPU:DRAM frequency ratio of 1:1. Without seeing your BIOS menu, I'm not sure how it's down - could be an actual ratio setting, could be a precentage setting, or you may simply have to set the RAM speed at DDR-400 & it will automatically stay in sync with the CPU frequency as you overclock. Also, make sure the PCIe is locked at 100MHz & ALL Spread Spectrum options are disabled .

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#5
July 18, 2011 at 04:36:11
I have set Dram timings to manual and they are on 5-5-5-15 - other settings are on auto-. Im OCing thorugh bios btw. ai over is on manual, pci-e on 100, trans booster off, cpu spread off, c1e off, i think i have everything on off. fsb dram ratio is 1:1 and when i put fsb to 400 dram goes to ddr2-800. but pc wont turn on

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#6
July 18, 2011 at 12:53:56
Try leaving the frequency at 400 and roll back the multiplier to 6 temporarily, then increase the chipset voltage a notch to make sure it is stable at that frequency. If you get stable then increase the CPU multiplier one at a time and retest. If you cannot get your it stable with a SLIGHT increase in chipset voltage then you probably have a problem with your memory. Roll things back to default and run Memtest86 to test your RAM for errors. Let it run through all tests, NO errors are acceptable. Replace as needed (should be under warranty).

You have to be a little bit crazy to keep you from going insane.


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#7
July 21, 2011 at 03:09:24
I have tried 6x400 but it didnt work on the current voltage (1,3875v), so ive rolled back to 8x350. Ive bought new cooler for cpu so temps are 29-48 at lowest rpm. I will do memtest and inform if i get some errors but i dont think that ill get any..

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#8
July 21, 2011 at 19:13:27
If you cannot reach 6x400 then you need to try increasing the chipset voltage very slightly (not the CPU/VCore voltage) IF your memory tests OK. Also make sure that your memory is NOT running over the rated 800DDR2 speed (often the second set of numbers next to the memory speed). If there is a memory multiplier than make sure it is on 2.0 or if there is a CPU/RAM Ratio make sure it is 1:1 or what ever is settable to keep the memory set correctly.
Just found your manual:
http://www.asus.com/Motherboards/In...
You apparently can lock your memory at 800DDR2 without a problem. Chioset voltage SHOULD be under Northbridge chipset settings or if not then under power settings.

You have to be a little bit crazy to keep you from going insane.


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#9
July 24, 2011 at 11:01:05
Ive checked memory with memtest and havent found any errors. My memory dram ratio is always 1:1 and max speed ive tried for ddr2 is 800mhz.
It seems that this mobo doesnt have NB voltage setting in bios...
ive tried many different settings but simply cant make it boot the win when it starts.

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#10
July 24, 2011 at 11:09:34
guys from asus said this about missing nb voltage setting

"At first we didn’t change the FSB Termination Voltage or North Bridge Voltage, however even their increase didn’t improve the system stability during overclocking [...]
So, the mainboard was working fine when the FSB Termination Voltage or North Bridge Voltage weren’t increased at all, and then it would refuse to boot when we raised them to 1.4-1.55V."


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#11
July 24, 2011 at 15:27:28
✔ Best Answer
There is a small possibility that updating your BIOS may give you the additional settings and possibly improve your ability to boot, but the quote you give makes it sound like you got a board made with inferior components (they 'cheaped' it out on you). You can try replacing your board, but I would recommend not spending too much on it but to save up for a new build completely.
In the mean time try running your CPU at 333x9=2.97GB and your memory at 667DDR2 (333.3 freq) for a 1:1 ratio and see if that works. If it does and is stable and cool enough, you can then try raising your multiplier to 10 for 3.33GB (a good OC) or possibly even 11 for 3.67GB, but that would probably be too much to ask of your board. This will keep your board to 1333FSB instead of 1600FSB which should be easier for it and should get you a nice compromise.

You have to be a little bit crazy to keep you from going insane.


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#12
July 26, 2011 at 05:53:45
I'll do that. Ty for advice

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#13
July 26, 2011 at 10:39:56
i have it running on 333x9 and it seems its maximum for this mobo (10x333 crash with blue screen always). cpu voltage is 1,4125v and i set dram timings on 4-4-4-12, temps max 51c and its stable so ill have to be satisfied with that. need to collect 250e and get new mobo.cpu and ddr3. anyway ty all it was fun and very educative :)

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#14
July 26, 2011 at 18:47:14
Glad to hear that you found a reasonably good setting to run it at until your next build. Don't make their mistakes, always get just a little better than you think you need now, so you will still be happy with it for a good few years and maybe a few simple upgrades.

You have to be a little bit crazy to keep you from going insane.


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#15
July 27, 2011 at 03:36:04
True, ty all again :)

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