Another Overclocking Issue!

[DJ Tucker]

ok i have another overclocking issue here. i have got my fsb to hit (375mhz x 9.5 = 3562mhz) vcore 1.18 but i have tried everything to get it above that and it wont happen. even 376mhz fsb fails. increasing the vcore does nothing. my computer loads fine with the bleep pass sound up until the little windows logo login section in which it will freeze.

all overclock stability tools (occt, prime95 and orthos) tell me that my cpu is stable for 4 hours running each individually.

i want to get my cpu to reach 3.8ghz = 400mhz fsb at 9.5x. is there anything that i am missing that maybe stopping my system from being overclocked any higher. can anyone tell me what settings to use what to disable and enable in which to get stable OC in fact windows starting up at least.

my system spec is below in my signature.

[kappage]

FSB wall? that would suck! Try doing it with only 2gb of ram at first.

[DJ Tucker]

already done that and still same problem. thx anyway m8

[ibleet]

With an E8500 there should be no way that you have hit a FSB wall. If you are not able to OC after increasing voltage, then you may have overlooked something in your BIOS setup.

Things you can try, and should have already done:

• Lower memory frequency (divider)
  Set PCIE at 100
  Set PCI at 33.3

If your current OC is prime stable, increasing it by 1 will NOT freeze as you describe. At most, it will just not run stable for quite as long, indicating that you need to add voltage. You definitely missed something in your setup.

[DJ Tucker]

i have checked all of what you said ibleet and all is well. this is my CPU Configuration Set-up:

CPU/FSB Frequency = 375
PCI-E Frequency = 100
Boot Failure Guard = enabled
CPU Spread Spectrum = Auto
PCI-E Spread Spectrum = enabled
LDT Spread Spectrum = enabled
SATA Spread Spectrum = enabled
Enhanced Halt State = disabled
Max CPU Value Limit = disabled
Intel Virtualization Tech. = Enabled
CPU Thermal Throttling = Enabled
No-Execute Memory Protection = Disabled
Intel SpeedStep Tech. = Auto

what here do you think i should change and keep the same, as it could be one of these that is causing my problem?

[ibleet]

Well what I listed are some of the most obvious culprits. It is difficult to diagnose your problem without seeing what is going on within your bios.

Post your CPU-z readings. Open up 3 instances of CPU-z (CPU, Mainboard, memory) side by side as that may help us with diagnosing the problem.

Listings of voltages / temps will help also.

Your CPU should be great for OC, but I don't know about the board. Some boards just don't OC well.

I'm sure some of our other members who are much better OC'ers will come to your rescue.

[DJ Tucker]

ok he is my CPU-z Information. Tell me what you think? also there is a Temperature Monitor Speedfan.

[kappage]

can we get some photos we can read please?

[DMB2000uk]

I think how are we supposed to read something that small?

Dan

[mr_noname111]

you need more voltage. Try 1.3V-1.36V. the E8400's clock doesnt gradually increase with gradual increase in voltage. At one point you need to pump in heck of a lot of voltage just to get past that point.

[DJ Tucker]

you guys cant read that. wow i can read that no probs so can MR _NONAME . anyway in your message mr_noname i have done that but it still doesnt work, voltage increased to a stupid 1.4. i dont want to go higher in case of over heating so is there anything i am doing wrong.

[ibleet]

Sorry but I can't read it either.

[martini161]

his cpu cant of hit an fsb wall but is mother board may very well have...

[mr_noname111]

Was just able to make out the 1.2000V.. but barely!

I don't think his mobo is only capable of 375mhz.. I mean it has 1600 in the name so it should atleast be good for 400!

Maybe try upping the NB voltage see if that helps.

[DJ Tucker]

still no luck in my overclock. i dont know what else to do now.

[martini161]

still no luck in my overclock. i dont know what else to do now.

you could have very well hit you max oc with that board. the 650i was designed for 1066 fsb

[DJ Tucker]

oh right well i never knew that m8. so i will have to stick with my current overclock of 3.562ghz. thx for everyones help.

[mr_noname111]

From what I've read, 650i is capable of way higher than 1066mhz. Check this thread for example:

http://www.overclock.net/intel-motherbo ... hread.html

People with the Asus 650i mobo have reached over 2000mhz (500fsb quad pumped).

And as I said before, Asrock themselves labeled the motherboard "1600"! Unless they are liars it should handle 400mhz atleast..

Try updating your BIOS to a newer revision!

[DJ Tucker]

thx for the link and my bios is fully updated

[Major_A]

Turn off Speedstep. See if there is a place in your BIOS to add voltage to your motherboard items. Generally when overclocking to get that added stability you have to up the voltage to the north/south bridge.

Edit
I just noticed your RAM timings, thanks Image Zoom add-on. You have your timings a little tight.
375Mhz
CAS Latency 5
RAS to CAS 4
RAS Precharge 4
Cycle Time 17
Bank Cycle Time 23

Let me preface this by saying I am no extreme tweaker/clocker. But, in my own experience having a lower value on the RAS to CAS and RAS Precharge than my CAS Latency gives undesirable results. Are you manually changing these values or do you have them set to Auto in the BIOS?