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Help - can't OC new system

post #1 of 17
Thread Starter 
Umm.. I'm kinda happy, but also kinda angry. I know I can OC this..im just having a few 'teething issues'

Recently put in a pentium d 940 (3.2 2x2mb cache, etc) 65nm...on my p5nd2-sli mobo....with a single x1900 xt...

When I OC it, the BIOS shows me 3.72 (For arguments sake) but I get only 3.2 ghz in CPU-Z & system properties,

My other 3.0e overclocked perfectly to 4.0 with no probs,

the FSB etc arent changed at all

PS: I'm running 32 bit windows still, I need to get 64 - haven't noticed improvement with CPU (Im assuming that's why..)

I'm going to sus the BIOS out a bit more, it's still fairly new to me

PS: it's in a TAI chi case, this chip runs stock @ 19c idle so im one happy boy in that aspect.

So can anyone suggest how I might get this CPU to register it's oc ? I'm going to try AI oc etc and see if that yeilds anything in cpu-z,

will add anything as i find it, but if anyone has some good suggestions please throw them my way
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teh dominatrix
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post #2 of 17
Are you certain SpeedStepping is turned off ?
Control Panel -> Power Options -> Power Schemes -> Minimal Power Management
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post #3 of 17
CPU speed:

232x16 = 3.72ghz

EIST Enabled

232x14 = 3.24ghz

In your case it's odd because the 940s do not support EIST. Why is the system doing that? Beats me, I've never seen this happen before but then again, it's an nForce 4 MoBo. I'm just going to guess the OC is not working properly or the MoBo just refuses to show the right info in CPU-Z.

My suggestion, ditch the board and get a real board that would allow some accurate OC. That 940 could easily be doing 4.0ghz on air with a P5WD2-Premium with the stock cooler and beyond with a 3rd party cooler but as long as you own that nForce 4, I doubt that you'll ever see 4.0ghz on it.
post #4 of 17
Quote:
Originally Posted by Nasgul
CPU speed:
In your case it's odd because the 940s do not support EIST.
It does support Enhanced SpeedStep Technology ... check this link and select 940 (under Processor Number).
The only processor in the 8xx and 9xx family (running an 800MHz FSB) that doesn't support speedstepping is the 820 since its multiplier is already x14.

What it doesn't include is Hyper-Threading since it's a dual core and this technollogy is not needed here.
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post #5 of 17
Thread Starter 
Right..does anyone know the answer to this?

Won't see 4.0 on a nforce 4? damn..i so dont want to replace this motherboard...fark...it wont boot past 3.87 as far as i've seen, havent pumped much voltage into it

the cpu is @ 19c i was hoping for 4.5.......

Still doesnt explain why my 3.0e also got 4.01 fsb/1066 easily, i felt as if my kingston valuram was stopping that old system ..

any more suggestions?
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teh dominatrix
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post #6 of 17
Quote:
Originally Posted by z_one
It does support Enhanced SpeedStep Technology ... check this link and select 940 (under Processor Number).
940s do not support EIST
Currently they don't. The revision just took place: SEE LINK. And we may not see one till the end of April or after.


Phirex, at stock voltage, a 940 should easily get to 4.0ghz as ALL 65nm CPUs do. Hoping for 4.5ghz? ditch the board, fudget about SLI and overclock that 940 the way it should be overclock.
post #7 of 17
Thread Starter 
Damnnn man i know it's not your fault, but i just spent heaps on this system.. so now i'll have to sell the board 2nd hand, and get one of them i might not do that right away, .. I'll be happy with 8ghz .. I mean 8ghz, 9ghz...does it make that much of a diff really? cpu loads @ 26c on water (folding)

the other major issue is that I dont think im utilizing both cores - do I need to use xp 64 bit edition to see this? It's not like hyperthreading how I can set affinities, etc.. any help? I want to fold on both cores!!
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teh dominatrix
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post #8 of 17
I stand corrected...
Quote:
Intel is updating its 'Presler' and 'Cedar Mill' 65nm desktop cores to improve the part's power consumption by adding support for the chip maker's
Enhanced Intel SpeedStep Technology (EIST).
Oh well I thought they did support EIST when I read the link I provided above (I mean it was on Intel's website lol)... but I guess you're always in for a surprise as technology, pushed by competition, is moving so fast these days.
They release something and then they work on finishing the declared features.
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post #9 of 17
Leave x 64 alone ..You will do better with winxp32 for now..X64 still has driver issues which i doubt will not be resolved until vista is released so i would wait for that..M
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post #10 of 17
Quote:
Originally Posted by PhireX

the other major issue is that I dont think im utilizing both cores - do I need to use xp 64 bit edition to see this? It's not like hyperthreading how I can set affinities, etc.. any help? I want to fold on both cores!!

I have a 920 and using 32bit XP Pro (I have a trial copy of 64bit, but just haven't had time to mess with it yet as there aren't a complete list of drivers yet, I need more than a couple hours set aside to play with it) and my system has no trouble using both cores......when it's needed.

there really aren't many single applications that utilize dual core's yet, now, when you start heavily multi-tasking, you'll see both cores spool up. Most times when I am just surfing the internet and using Skype or IRC, my first core will be at like 20% and my second one will be at like 2-5%......start listening to music and opening Excel will take them to 35% and 10%......


Run 2 Prime95s at the same time......you'll see both cores hit 100%


You shouldn't have any trouble folding with it, I just need to get mine final tweaked and 24/7 safe and then I'm gonna join the Folding team.
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