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New to overclocking, Please help - Page 3

post #21 of 33
Durch really helped me get my machine OC'd to the max, which wasn't more than stock unfortunately. Still, listen to his advice and you'll do well. GL on your OC'ing efforts.
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post #22 of 33
you're probably going to have to "loosen" the latencies on your RAM. Try changing the first latency from 2.5 to 3.
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post #23 of 33
Thread Starter 
ok as of right now here are my settings
FSB 250 vcore 1.5 ht x4 and ram 200 mhz 2.5,4,4,8

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post #24 of 33
Thread Starter 
Okay... i just tried running Prime95 with the above settings, and i get an error like 5 seconds after i press start "Hardware Failure Detected" ???
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post #25 of 33
yeah, can you loosen the ram timings? they simply might be far too tight also another reason for hardware failure as i was experiencing the same problem was lack of volts. when i increased my volts all was good no failures but my temps rose to hell lol. Try loosening the timings set to auto or if you must select a figure try something like 5-5-5--18 or 6-6-6-18 just to give breaving space. Also you may need to up the voltage of the ram as at FSB 250 the ram is also overclocked so its running faster than 200mhz and maybe the reason for hardware failure.

So try

1) loosen timings and test, if it passes good success if it fails...
2) up cpu volts slightly. again if it passes good success if it fails...
3) up your ran voltage and test again.

my understanding is that either your ram or cpu is not recieving enough power and is cutting out. BUT definately do something about them timings if you can as they are far too tight for the mean time.

Lets us know how it goes
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post #26 of 33
Thread Starter 
rgr that, be back in 5 min,

edit: ok loosened up the timings to 3, 7, 7, 15 now its not failing the test!!!! so were good now ( i think the volts for ram is on auto btw) ahh but its dropped my FSB back to 201 ... gotta go pump that back to 250 where it was b4


Step 1 = FAIL : 3, 5 , 5, 15 timings, still failed the test

going to up volts now,

Step 2 =
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post #27 of 33
try loosen the first timing a bit more fella gives it better breathing once you are happy woth OC then you can work on tightening the timings up. thats pretty much the last thing you do. But im glad to hear your pasing the test now
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post #28 of 33
Thread Starter 
Quote:
Originally Posted by Chaos Prime View Post
try loosen the first timing a bit more fella gives it better breathing once you are happy woth OC then you can work on tightening the timings up. thats pretty much the last thing you do. But im glad to hear your pasing the test now

i can't loosen the first timing up its either 2, 2.5 or 3 those are my only choices

Tcl = 3
Trcd = 5
Tpp = 5
TRas = 15

and i set ddr voltage to 2.6 and still fail test, im gonna try puting the cpu up 1 more, if not that then i'll put the ddr up 1 more
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post #29 of 33
Thread Starter 
Still Failed the test
DDR Voltage 2.7
vcore 1.57

dunno where to go from here
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post #30 of 33
Here's how Durch helped me a few months ago. You basically find the max on your mobo, then CPU, then RAM.

Quote:
Originally Posted by durch View Post
The math behind how RAM speed is calculated is explained in my thread DDR2 Memory Speeds Explained which you commented on lol. Is there a part you're confused about? I can try to explain further.

And like I say in that thread, this table should be a quick reference for you to figure out what speed you'll have at various settings of HTT, CPU multi, and memory setting.

For a very brief guide to overclocking, do this:

I) Find the max HTT of your motherboard.
1) Set memory voltage to 2.1v, CPU voltage to 1.35v, and motherboard voltage to the lowest setting in BIOS.
2) Turn off Cool'n'Quiet.
3) Manually set your timings to 5-5-5-18-2T.
4) Set the memory setting to DDR2 533.
5) Set the CPU multiplier to 6x.
6) Lock the PCIe setting at 100MHz.
7) Set the HT multiplier to 5x.
8) Slowly increase the HTT by 5-10MHz at a time. If the motherboard won't load Windows, lower the HT multiplier by 1x (so 5x would become 4x). If that doesn't work, increase the voltage to the motherboard by 1 notch. Repeat until you've found the max HTT that your motherboard can hit (usually around 350MHz for a good motherboard, but could be much less for a cheap one). Now you have a rough idea of how high your motherboard can go. You won't be able to set the HTT higher than this value, remember that.

II) Find the max CPU speed
1) Leave the settings described above, except change the HTT back to 200MHz, put the CPU multiplier at the default for your CPU (in your case, 13x), put the HT multiplier back to 5x, and put the voltage to the motherboard back to the lowest value.
2) Slowly increase the HTT (by 5-10MHz at a time).
3) Remember which HTT values required a lowering of the HT multiplier, and do this when needed. Also remember which HTT values required a boost in the motherboard voltage and do this if necessary.
4) If Windows doesn't load, increase the CPU voltage by about 0.025volts.
5) Continue this process until your CPU voltage hits 1.50volts or your temps become too high.
6) Run Orthos once you've hit 1.50volts and found an HTT that allows Windows to load. If it fails (which it will), lower your HTT by 2-3MHz and repeat. Continue until you can pass Orthos for about an hour or two. Record the HTT value that accomplishes this, that's your CPU max speed. (Let's say for this example that it's 3.055GHz, or 235MHz x 13). This means your CPU won't go past 3.055GHz no matter what HTT and multiplier you choose.

Now that you've isolated the motherboard, and then the CPU, and found their max's, time to bring in the RAM and get a final overclock. You know the limits of your other parts, and when they need more voltage or a lowering of the HT multiplier, so if you hit instability in your system at a point where you know the CPU did just fine at the given voltage, then the problem is your RAM and you need more voltage or looser timings.

III) Find the max overclock by including RAM
1) Set memory voltage to 2.1v, CPU voltage to 1.35v, and motherboard voltage to the lowest setting in BIOS.
2) Turn off Cool'n'Quiet.
3) Lock the PCIe setting at 100MHz.
4) Set the HT multiplier to 5x.
5) Set the CPU multiplier to 12x (you have good RAM, and odd multipliers underclock the memory at first, so we're going to do a more aggressive RAM overclock by lowering the CPU multiplier to 12x).
6) Set the timings to 4-4-4-15-2T.
7) Set the memory setting to DDR2 800.
8) Set the HTT to 200MHz, and slowly increase by 5-10MHz at a time. Lower the HT at appropriate points (as determined in step I), and increase CPU voltage at appropriate times (as determined in step II). Continue with this process until you can't load Windows. If you know the HT multi and CPU voltage are at appropriate values, then loosen your RAM's timings to 5-5-5-18-2T, or give your RAM another 0.1volts. Continue increasing the HTT again until you either reach the max CPU speed, or reach instability with 5-5-5-18-2T timings and 2.3volts to the RAM. If you reach instability with 5-5-5-18-2T timings and 2.3volts to the RAM, and you haven't reached your max CPU speed, then you have bad RAM and need to lower the memory setting to DDR2 667. Then continue to increase the HTT until you reach the max CPU speed.

Hope this helps, let me know if you have questions.
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newest thang
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Win7 home premium 64-bit DCLCD 22" (1920x1080) Samsung 906bw 19" (1440 x 900) SIIG, inc. 
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