No luck going over 240 using A64 OC Guide

techstyled

New member
My system:

MSI K8N Neo2 Rev. 1

AMD A64 3000+ Winnie

Corsair PC4400

ATI x800XT PE

OCZ Powerstream 600

Watercooled with Aqua-Computer's new Cuplex XT block :)

I'm following the Overclocking Guide, I've set my memory to 100, I've got HTT at 3x, I've got my Proc at 8x and no matter what I do, every time I go to 241+, I crash.

I even tried boosting my VCore to 1.55 (it's at 1.45 by default).

My temps have never been higher than 35C (according to Core Center) even after a few minutes of Prime95 Heat.

Either I'm missing something very basic (very possible considering I'm such a newb), or 240 is just the best I can hope for right now.

Anyone have any ideas?
 
try 241x9 or 241x8.5..then tell us your results. also your HTT should be at 4 atm. set it at 3 when u go above 250HTT
 
You need to troubleshoot what part is not letting u get a good oc...

Easiest way to do this is to drop ur multi real low and see how high u can get the FSB... If you can get past your 240, etc, then it's more than likely ur proc (which I wouldnt doub, depending on what stepping, revision, batch ur proc came from its a speed binned POS *like my last one*). If you can't get past that 240 barrier no matter how low the multi is then ur ram is limiting ur overclock.

Try those simple things then report back with the results.
 
Well, I went to the BIOS instead of using Clockgen.

Dropped CPU Multi to 4x.

Set FSB to 235, post and boot to Win.

Set FSB to 241, post and get "A disk read error has occured, press CTRL+ALT+DEL"

Set FSB to 250, post and get same message.

Basically anything past 240 and HD's hang. Could it be a SATA thing?

My memory is supposed to be able to handle 275 I thought so that shouldn't be it.

I'm going to try my other Winnie 3000+ now. I'll be back...
 
how are changing the voltage of your winnie ?

what bios are you using and what ram timings

if u have the corsair pc4400 ram then why use a 100 mhz divider ?

u should be able to do 1:1 with that ram.

set your agp frequency to 67

bump your psu rails for

+12v to around +12.5/12.6 V in windows ( not bios )

+3.3v to 3.75V ( windows reading )

+5v to 5.45V ( windows )

remove ur northbridge fan and see if msi has put the thermal paste properly or not since they are notorious for skimping on that part. if not then apply a nice even layer of Arctic Silver Ceramique . NO AS5 !!! AS5 = silver = capacitive.
 
First, thanks for your help. Now, to answer your questions to the best of my ability:

-how are changing the voltage of your winnie ?

>> BIOS, but according to CPU-Z, it's still at 1.4 even though I set it at 1.55 in BIOS

-what bios are you using and what ram timings

>> Most recent, ver. 1.8 dated 4-12-05, see pics below for RAM timings (2T right now, remember, I'm following the guide and haven't gotten to my RAM yet.

-if u have the corsair pc4400 ram then why use a 100 mhz divider ?

>> I was following the guide directions, focused on my FSB first

-u should be able to do 1:1 with that ram.

>> Yes, I should.

-set your agp frequency to 67

>> ok, I'll try that

-bump your psu rails for

+12v to around +12.5/12.6 V in windows ( not bios )

+3.3v to 3.75V ( windows reading )

+5v to 5.45V ( windows )

>> ok, I'll try that too but do you mean I should be using something in windows to bump them or that I should be basing the reading of the rails on windows say-so, not BIOS. Do you mean I should be using the Pots on my Powerstream?

-remove ur northbridge fan and see if msi has put the thermal paste properly or not since they are notorious for skimping on that part. if not then apply a nice even layer of Arctic Silver Ceramique . NO AS5 !!! AS5 = silver = capacitive.

>> This makes the most sense to me (not discounting your other ideas, just saying I actually understand this one :)) Could it be that the northbridge is the reason the SATA disks are acting funny at 241+. Regardless, I'll do as you suggest.

BTW, I used AS5 on my CPU (_very_ thin coat), is this a bad idea, or is it just a bad idea for the northbridge. I don't have any Ceramique, might be able to dig up some of that ubiquitous white paste somewhere until I can get some.

Thanks again for the help. I'll post back with my results.

Here's some CPU-Z info is this helps any:

octest1.jpg
 
hey i have the same kind of mobo like you try putting the sata drives ( if you have ) on the sata 3/4 ports because sata1/2 aren't locked. Set agp frequency to 67 to become locked. and retry again ;)
 
name='balilu' said:
hey i have the same kind of mobo like you try putting the sata drives ( if you have ) on the sata 3/4 ports because sata1/2 aren't locked. Set agp frequency to 67 to become locked. and retry again ;)

Yep, I was using SATA 1/2 and AGP was at 66. Don't know which or if both made the difference but after moving to 3/4 and AGP at 67:

octest2.jpg


FSB at 300! And I only stopped cause RL interrupts.

See, y'all probably thought I knew about unlocked SATA ports. You know what happens when you assume, you make me look like an ASShat newb :)

Seriously though, thanks for the help, I knew y'all'd be able to help me.

:worship:

Will post more when I get back and see where the CPU and memory can go.
 
techstyled said:
First, thanks for your help. Now, to answer your questions to the best of my ability:

- BIOS, but according to CPU-Z, it's still at 1.4 even though I set it at 1.55 in BIOS

>> Neo2 doesnt allow voltage change using the voltage numbers. i.e. if u change it from 1.4v to 1.55v it will not. Its a problem it has had forever with a winnie. Use the Cpu VID value ( the percent ones % ) , keep you cpu voltage at 1.4V and change the percent values ( i think its like 2% , 5% and so one ) . That will effectively give you a voltage bump.

- Most recent, ver. 1.8 dated 4-12-05, see pics below for RAM timings (2T right now, remember, I'm following the guide and haven't gotten to my RAM yet.

>> Get the 1.51 bios , works the best for TCCD, and change your 2T timings to 1T. Finding max fsb wont help much if your winnie has a shitty mem controller. You will be back to square one once you start doing 1:1 ratios.

- I was following the guide directions, focused on my FSB first

>> Answered above. Always oc 1:1 , once you start hitting a wall you cant get past , then put a divider if you think its your ram.

-u should be able to do 1:1 with that ram.

>> Yes, I should.

-set your agp frequency to 67

>> ok, I'll try that

-ok, I'll try that too but do you mean I should be using something in windows to bump them or that I should be basing the reading of the rails on windows say-so, not BIOS. Do you mean I should be using the Pots on my Powerstream?

>> I mean the readings in windows and not the ones you get when your in bios. Windows gives you a semi-loaded reading which is more accurate than what you get from bios. And yes I do mean changing the pots on your OCZ. Do it real slow though since its really sensitive and a slight turn changes the rails . I needed about a quarter turn to get to where i wanted to be.

-This makes the most sense to me (not discounting your other ideas, just saying I actually understand this one :)) Could it be that the northbridge is the reason the SATA disks are acting funny at 241+. Regardless, I'll do as you suggest.

>> Use SATA ports 3&4 . Sata ports 1&2 do not have a working lock on them.

BTW, I used AS5 on my CPU (_very_ thin coat), is this a bad idea, or is it just a bad idea for the northbridge. I don't have any Ceramique, might be able to dig up some of that ubiquitous white paste somewhere until I can get some.

>> A thin coat is all that you need. If you do not have Ceramique , then use AS5 but be VERY careful when applying it and make sure u dont get any on the board. If you do then wipe it off with a paper towel after wetting it with a little Alcohol.

Thanks again for the help. I'll post back with my results.

>> Your welcome , just trying to help .

>> Tighten your timings to about 2.5-3-3-6 , use 1:1 , and use memtest to find you which voltage is right for your TCCD ( very important since TCCD is really sensitive to voltage and always has a sweet spot. Usually from 2.6V ~ 2.8V ) . I never had to give my TCCD more than 2.75V on my neo2. No point in overclocking if your running a divider and loose timings, the performance deficit just ends you up with the same performance as stock. And Neo2 has a really shitty temp sensor , so I wouldnt trust it too much.

Here is a link which should help you some :D

http://www.xtremesystems.org/forums/showpost.php?p=553711&postcount=1

Hopefully , this should help you get faster without compromising too much :D .
wavey.gif
 
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