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Do I Hhave a Dud E6600 for Overclocking?

D

DarkOneX

Weaksauce
Joined
Jul 22, 2004
Messages
119
I got my E6600 rig put together the other day and these are my CPU markings

6600 SL9S8 MALAY
2.40GHZ/4M/1066/06
L624A591

I can overclock it only to 2.5Ghz stable for some reason no matter what I do. I saw a thread with a guy that had his @ 3Ghz and I used the same settings for voltages etc and it didn't help. Did I just get a dud overclocker? It would figure if I did, I can never seem to get high overclockers, such as my last CPU which was a 3.6Ghz Prescott, I could also only get 100Mhz max stable overclock out of it. Could I just be doing something wrong? Help!
 
I dunno. I got the same mobo as you and crappier RAM and I can get up to 2.8 (haven't tried much more yet). Are you going into the BIOS or using the ASUS AI utility?
 
You just need to find those magical BIOS settings and you'll get there. Give it some VCore! Seewhat 1.45V will get you. That's a week 24 E6600 - those are good OCers.
 
Only getting 100 mhz on a 3.6ghz stock proc is telling me you're not doing something right in the bios. You have to make sure that the PCI and Pcie clocks are not changing when you up the FSB. If you're changing both, then you're oc'ing everything...sound...video...hard drives...and that's a good way to fry alot of good electronics.

The other possibility is that you're leaving the ram settings at "autodetect" or some such. and the bios is selecting *inappropriate* values for these timings. For example..if u got ram that is rated at 3-4-4-7 and the mobo is setting it up at 2-3-3-5 by default, you'll be lucky to boot- much less get a minimal OC.

I'd relax ram timings first to max...and put a divider of something like 3:2 (FSB:RAM). then take your proc to it's limit first. After you've established your highest stable FSB speed. Figure out 1.) if you can run 1:1 divider at that FSB speed with your ram, and if not you're going to have to experiment with whether it's better to run asynchronous at a higher FSB speed or synchronous at a lower FSB speed.

And BTW. I wouldn't start messing with Vcore unless you got some better than stock cooling. And then only if the additional FSB speed you attain gets you to some sweet spot with a mem divider or something.
 
I know what he is doing, he has his ram to waht its rated at and for egample if its only rated at ddr800 and then he starts to overclock at 1:1 ratio i can not see that go very higher than 850mhz.

If your ram is at 800 then put it at 667mhz and the devider at 1:1 ram to CPU.

See it go up after that. Pm me if you get stuck ,i used a P5B for the E6300 i overclocked last week.
 
I'm having problems going anywhere with mine too. It seems to be the ram or motherboard. I can get it up to like 3Ghz in to windows but it not stable for anything ram intensive. Prime95 stable... I'm having problems doing like ANY overclock.

I think once I get it sorted out the chip will probably do 3Ghz. But so far overclocking this chip has been harder than any of the past 4-5 chips I've had.

I've got an L624 also. (OEM)
 
chrisf6969 said:
I'm having problems going anywhere with mine too. It seems to be the ram or motherboard. I can get it up to like 3Ghz in to windows but it not stable for anything ram intensive. Prime95 stable... I'm having problems doing like ANY overclock.

I think once I get it sorted out the chip will probably do 3Ghz. But so far overclocking this chip has been harder than any of the past 4-5 chips I've had.

I've got an L624 also. (OEM)
Click to expand...
The chip you have there is a good chip , i reckon you too have been imited by the ram and what you set it to when you started to overclock.

You still got 600mhz which isnt bad.

if its set at 533mhz before you start overclocking does that not make a difference. Like sir aldoman said thats what the 1:1 ratio would have your ram to run at and if your ram is rated 667mhz with tight latencies , then i think you should be able to push your ram to about 700mhz =350fsb but thats if your baord will let you.
 
Nah I'm not leaving the mem @ 1:1. I set my PCI Freq to 33Mhz, and the PCIE @ 100 to keep them both at the levels they should be. I found one thing wierd though, if I DON'T set my memory divider down and let it keep going up to even 900+Mhz, it seems to boot up on higher overclocks. Say if I set my FSB up high and my mem down to 750Mhz, it won't boot. but if I leave it at DDR-800 and just let it go up, then I can reach a bit higher, but I notice that on POST it still says PC2-6400 so it's as if it's leaving it @ 800. Kinda odd.
 
DarkOneX said:
Nah I'm not leaving the mem @ 1:1. I set my PCI Freq to 33Mhz, and the PCIE @ 100 to keep them both at the levels they should be. I found one thing wierd though, if I DON'T set my memory divider down and let it keep going up to even 900+Mhz, it seems to boot up on higher overclocks. Say if I set my FSB up high and my mem down to 750Mhz, it won't boot. but if I leave it at DDR-800 and just let it go up, then I can reach a bit higher, but I notice that on POST it still says PC2-6400 so it's as if it's leaving it @ 800. Kinda odd.
Click to expand...

So what is your memory rated timings? If you're using this memory you need to verify that the board is not setting it to something besides 5-5-5-12
Sometimes boards reduce memory timings automatically when the mem speed goes down- even if your memory can't perform at those timings.
 
i975X can handle high FSBs with higher multiplier, while i965 can only overclock lower multipliers but higher FSBs, thus, i975 overclocks conroe better than i965. All I can say is, you bought an Asus motherboard, I have an asus, overclocks like crap. A lot of people have been regretting their decision to buy Asus. Good luck and have fun but that P5B was not the smartest move you could have made for overclocking.
 
I did actually have the P5W DH i975X board at first but it was DOA so shipped it back and it wasn't in stock so I got a refund and ordered the P5B. Really though, I'm happy with leaving it as stock, it's mad fast already, but it would be a nice bonus to be able to overclock.
 
StealthyFish said:
i975X can handle high FSBs with higher multiplier, while i965 can only overclock lower multipliers but higher FSBs, thus, i975 overclocks conroe better than i965. All I can say is, you bought an Asus motherboard, I have an asus, overclocks like crap. A lot of people have been regretting their decision to buy Asus. Good luck and have fun but that P5B was not the smartest move you could have made for overclocking.
Click to expand...

I think Intel went and broke something on the 965 on purpose to make it slower (& cheaper) than the 975.

Like with the 875/865, the 875 was more expensive and supposed to be binned for faster speeds, etc... then they found out a way to basically enable the faster speed (PAT) for the 865.

Lets hope Asus can figure it out, then Abit, Gigabyte, etc... can copy it again! :)
 
<E-Draven> the key, as i mentioned yesterday, is in the NB vcore
<E-Draven> i can boot xp at 3.2 Ghz now, and do some stuff
<E-Draven> anyway, i put it up to 1.65 (northbridge vcore) and everything got peachy
<E-Draven> my happy place seems to be 2970 Mhz, 1.55 on NB vcore, and 1.4 cpu Vcore

Buddy of mine who also was having trouble overclocking the E6600 said this today. Do you feel it's safe to set the NB vcore up that high and the CPU vcore?

Also right now I'm @ 2.7Ghz and my idle temp is like 47C and load is like 54C, is this ok and what if it got a little higher if I tried for 3Ghz?
 
Mine is hitting 2.75Ghz right now dual Prime95 stable with my gigabyte DS3.

Whats funny if I can boot in to Windows up to around 3Ghz+, but once I do anything memory intensive I get errors. Like Prime95 will run the small FFT test, but the larget FFT test drop out with errors quickly. It makes me thinks its the motherboard/NB or memory.

I'm still skeptical about that Cas 3 in CPU-Z only being read wrong. I think the motherboard is forcing. I have yet to try the F4 bios (beta) I'm still on the F3. Its amazing how fast it is for somethings. However, for some its not that much faster than my PentiumD 920 @ 3.9Ghz.
 
Man you are definately bottlenecked by your dividers and ram.

Check what your ram is right now and thats you set your fianl overclock at for your ram, you also find your CPU fsb ' max , and the art of overclocking is when you synchronise both.

You are definately doing something wrong.

If you look at the leaderboard on top of the intel section you will see most of the people get on average or should I say minimum overclock of 1 GHZ , this said also look at the Vcore increase they are doing to get these clocks, you are simply maxing your ram and then hoping you can overclock your CPU .

It wont go any further until you sort the ram setting at something lower maybe 4:5 or something.

Cant you see a pattern and why you cant get pass 2.7ghz or 3.2ghz ? Again the ram is maxed

You have ram which is running at 900 mhz or something . I do not think your ram is going to go pass that.

Overclcoking is a art and involves some simple maths.

You have to synchronise both CPU and RAM's MAX of what they can do.

You have found what your ram can run at but itd your cpu but because the ram and cpu have this ratio joint to them you cant go any further cos your ram cuts off on you if you increase the settings.

It goes like the CPU does the threads and the ram provides the bandwidth to hold the threads being calculated. It has to be synchronised and both the components maxed at the same time.

I dont know man ,but you have everything to make the perfect pudding , all your components are from the best things out there. You shouldnt fall
 
I don't think that's what I'm doing wrong because here is what I've done.


I've left my mem setting @ PC2-800 and started overclocking FSB from there to get where I'm at now.

Yesterday I set my mem down to like PC2-533 and started overclocking FSB from there and did boot into Windows @ 2.8 and 3.0 but shortly after got a random reboot. Both times I had the mem NOT set to auto, had them set to CAS 5-6-6 or whatever was crappiest, and had my CPU vCore up a bit, not at 1.6 like most peeps in the OC database though as that was making my shiz too hot, like 60C idle and that's no good.

I think I'll try upping vcore a bit more and maybe the NB vcore and see if I can get a stable 3.0Ghz OC, that would be sweet and I'd be thrilled with that.

Thanks for the input and you'll be hearing back from me.
 
chrisf6969 said:
Mine is hitting 2.75Ghz right now dual Prime95 stable with my gigabyte DS3.

Whats funny if I can boot in to Windows up to around 3Ghz+, but once I do anything memory intensive I get errors. Like Prime95 will run the small FFT test, but the larget FFT test drop out with errors quickly. It makes me thinks its the motherboard/NB or memory.

I'm still skeptical about that Cas 3 in CPU-Z only being read wrong. I think the motherboard is forcing. I have yet to try the F4 bios (beta) I'm still on the F3. Its amazing how fast it is for somethings. However, for some its not that much faster than my PentiumD 920 @ 3.9Ghz.
Click to expand...

That totally blows man. I hope you can figure out the problem. Maybe you should holla at
Brahmzy. He got a stable 3.4GHz using the DS3 Gigabyte and an Thermalright Ultra 120.
 
mentok1982 said:
That totally blows man. I hope you can figure out the problem. Maybe you should holla at
Brahmzy. He got a stable 3.4GHz using the DS3 Gigabyte and an Thermalright Ultra 120.
Click to expand...

Its seems like more people are hitting high clocks with the 6300/6400, than the 6600.

Everyone says its a problem with the 965 motherboards not OC'ing high at 9x multiplier. Maybe I should drop the multiplier & try OC'ing a little with 8x or 7x.

or MAYBE it has to do with the way Intel is binning the Conroes... presumably they test first to see if all 4Mb of cache works.... then they test for speed. Fastest goes to XE, next to 6700, left over to 6600. Then the 6300 & 6400's could have been XE, but part of their cache didn't work so they got binned down to the lowest speed bin even though they could have been great OC'rs...... See what I mean?
 
DarkOneX said:
I don't think that's what I'm doing wrong because here is what I've done.


I've left my mem setting @ PC2-800 and started overclocking FSB from there to get where I'm at now.

Yesterday I set my mem down to like PC2-533 and started overclocking FSB from there and did boot into Windows @ 2.8 and 3.0 but shortly after got a random reboot. Both times I had the mem NOT set to auto, had them set to CAS 5-6-6 or whatever was crappiest, and had my CPU vCore up a bit, not at 1.6 like most peeps in the OC database though as that was making my shiz too hot, like 60C idle and that's no good.

I think I'll try upping vcore a bit more and maybe the NB vcore and see if I can get a stable 3.0Ghz OC, that would be sweet and I'd be thrilled with that.

Thanks for the input and you'll be hearing back from me.
Click to expand...
Is there not away where you can set your ram about 80% to what its rated at. Think this over , you are at 3.2ghz , yes , and you set your ram at ddr800 , yes , they are both synchronised and running together and you have your cpu to 3.2ghz ,yes , so whats your ram at now?

That is what i am trying to tell you, you have totally maxed your ram.

Your ram is probably running at 900mhz , come on that is quite a overclock. Ask Eclipse on this. Its not your ram who's spedd we want now its your CPU.

If there is a devider put it at 5:4= 5 being your CPU and 4 being your ram.

When you are overclocking verything changes when you go up a notch , like you put your FSB up then your ram is no longer working at DDR800 but the extra ammount you have increased it at.

You are maxing your ram, please understand that and do something. so your ram does not exceed your CPU.

Start from beginning and leave your ram voltage and Cpu Vcore at auto , just mess with your dividerso you start seeing whats happening.If the 533 is too much then start at 667mhz cos that is about 75% of what your ram is rated and now you can slowly pus it too 900mhz

Also if you think its the board then try a few more times and then go and change it. People with your board have done ok havent they?

Also when you tried 533mhz setting yeah , now think what will your FSB for cpu be if you used the devider 5:4 , if you can figure this out and put the FSB there it will boot , also do you have your ram set to Serial Presence Detect =SPD.

You are our hope , please you have to get this to 3.5ghz , only then your done.
 
No dude, you aren't understanding me. Listen, I just did this again to see what I could do. I set my memory down to DDR2-533 instead of 800. There doesn't appear to be a divider in this BIOS config, just says "Memory speed: DDR2-800" and you can increase and decrease it, so I think that's the divider. Then I upped my fsb to 300 which put my memory @ DDR2-750. It wouldn't boot, it wouldn't even begin to load Windows and it'd reboot.

Then I went back in to prove a point, because I'm seeing something odd on here, I went back in and I set my DDR2 up to 900 (which normally would be @ 800 if my fsb was @ 266), and now it booted up just fine into Windows. I loaded up CPU-Z and it shows my mem running @ 900 with a fsb/ram ratio of 2:3.

It's very bizarre, It's almost acting like it's working in reverse or something. It seems like when I set my mem to fsb ration to like 3:2 then it DOES boot at overclocked levels, instead of the other way around. I have overclocked CPU's for quite a few years, since the Pentium 2 era, so I'm not a total noob and I know you can't run the mem alot higher than it's rated. As a matter of fact, this same mem was on my old PC and I know for a fact it wouldn't run past 831Mhz so I have no idea how I'm up into Windows @ 900Mhz, I really think something is amiss here.
 
Lol check this out! New BIOS update for my mobo on 8/11 and see what it says the new features are:

asus_download_arrow002.gif
Version 0507 2006/08/11 update
asus_download_dot5.gif
asus_download_arrow002.gif
OS All
asus_download_dot5.gif
asus_download_arrow002.gif
Description P5B Deluxe Release BIOS version 0507
1. Support Conroe CPU ratio adjustment
2. Fix some DDR 800 frequency will show DDR 533
3. Enhance performance when using NVDIA 7950GX2 VGA card
4. Fix fail to read files from some ODDs
5. Fix "Hit ''DEL'' message display" item function fail
6. Support Max FSB from 500 MHz to 650 MHz

So currently it appears I DON'T have a ratio adjustment so that's probably the problem with all these peeps including me with P5B's! lol. Gonna go flash now and report back.
 
Didn't help me none. That CPU ratio thing, what they really meant to say, is it allows me to unlock my CPU multiplier and I can set it anywhere from 6-9.
 
It's possible the PCI/PCI-E lock doesn't work, so set them below their default speeds. That's what I had to do with my motherboard due to the lock not working properly.
 
DuffMan72 said:
It's possible the PCI/PCI-E lock doesn't work, so set them below their default speeds. That's what I had to do with my motherboard due to the lock not working properly.
Click to expand...
Hrm interesting, because what I'm noticing when too is when I clock it up too high it sometimes starts failing to see my DVD-RW and sometimes says that c:\windows\system is corrupt or something...so maybe?
 
DarkOneX said:
Hrm interesting, because what I'm noticing when too is when I clock it up too high it sometimes starts failing to see my DVD-RW and sometimes says that c:\windows\system is corrupt or something...so maybe?
Click to expand...

bingo. Definitely sounds like a problem with the lock not working for your pci/-e/southbridge. If the bus isn't locking with a proper ratio, you can cause file corruption and destroy your windows files if you actually manage to get it into windows with your bus at a speed that is high enough to cause data corruption that will actually write to the HD.
 
DarkOneX said:
Hrm interesting, because what I'm noticing when too is when I clock it up too high it sometimes starts failing to see my DVD-RW and sometimes says that c:\windows\system is corrupt or something...so maybe?
Click to expand...
So what have you got it at now and have you used the new BIOS.

I have seen that most of the boards are quite limited to bios features at the mo and future boards and bios are getting better so maybe all this is just a matter of time.

Couple of things though , when your overclcoking you have to find the FSB for the cpu and its potential max , then you have to find the ram and whats the max it can run at after you haver found both use it with deviders to get your final overclock .

So what have you got for your CPU max ? and what have you got for your ram max?
 
yep. you need to lower your multiplier and see if its a FSB or Ram limitation. I'm pretty sure is the Northbridge getting too hot and its limiting me to about 305FSB (after trying lower multipliers and hitting the same wall).

I'm going to swing by radioshak & CompUSA this afternoon to see if I can find something like this to put on my northbridge: http://www.radioshack.com/product/i...=&origkw=12v+fan&kw=12v+fan&parentPage=search
 
I have made progress. I think my problem was I was leaving on those CPU options such as C1E and SpeedStep. After disabling those I was able to get into XP for awhile @ 3Ghz after increasing my NB voltage just a tad, and my CPU to 1.3v. At the moment I'm at 2.8 stable, 2.9 and 3.0 and maybe more is probably going to be achievable once I get my new Scythe Infinity heatsink/fan in next week, because my temps were like 55C idle and over 60C load. Right now with stock fan/heatsink @ 2.8 I'm @ 50C idle and 58C load.

Oh, and right now @ 2.8 my memory is 1:1 so it's only running 624Mhz. Should I increase that in the BIOS to 1:2 or whatever and that should make it run around 800Mhz?
 
Basically on the retail E6600's, the higher you wanna go the more VCore you've gotta give 'em. That's about it. How high do you wanna go? Or rather, how much VCore are you willing to live with?
 
chrisf6969 said:
Its seems like more people are hitting high clocks with the 6300/6400, than the 6600.

Everyone says its a problem with the 965 motherboards not OC'ing high at 9x multiplier. Maybe I should drop the multiplier & try OC'ing a little with 8x or 7x.

or MAYBE it has to do with the way Intel is binning the Conroes... presumably they test first to see if all 4Mb of cache works.... then they test for speed. Fastest goes to XE, next to 6700, left over to 6600. Then the 6300 & 6400's could have been XE, but part of their cache didn't work so they got binned down to the lowest speed bin even though they could have been great OC'rs...... See what I mean?
Click to expand...

no. for the 6300/6400s, they just don't have the 2mb extra cache. What you're saying sounds like Intel disables it. They just don't start with 4mb and get disabled, they don't have the cache onboard at all. But your logic for the E6600s makes sense.
 
StealthyFish said:
no. for the 6300/6400s, they just don't have the 2mb extra cache. What you're saying sounds like Intel disables it. They just don't start with 4mb and get disabled, they don't have the cache onboard at all. But your logic for the E6600s makes sense.
Click to expand...

Well that would still make sense for 6300 & 6400's doing so well. They're not speed binned at all, just like before. So they could be capable of XE speeds, but since its a different die, they can't be used for XE. Where before I thought the 2Mb was disabled like it is with Celerons vs P4's. (either way they didn't take the good ones out for XE's & 6700's)
 
chrisf6969 said:
Well that would still make sense for 6300 & 6400's doing so well. They're not speed binned at all, just like before. So they could be capable of XE speeds, but since its a different die, they can't be used for XE. Where before I thought the 2Mb was disabled like it is with Celerons vs P4's. (either way they didn't take the good ones out for XE's & 6700's)
Click to expand...


I don't remember were I read it but Intel said they wanted to avoid overlap. There should or could have been 2MB versions at the same speeds as the 4MB versions. Then the Allendales would have slowed Conroe sales some. Celerons did this to Northwoods and even lately Cedar Mill and Presler were hurt by Celeron D. Sure we know they suck!

I'm not about to turn off all of my features to overclock higher. I'd rather have 400MHz with everything except leagacy USB vs 800MHz with nothing any day of the week.
 
Donnie27 said:
I don't remember were I read it but Intel said they wanted to avoid overlap. There should or could have been 2MB versions at the same speeds as the 4MB versions. Then the Allendales would have slowed Conroe sales some. Celerons did this to Northwoods and even lately Cedar Mill and Presler were hurt by Celeron D. Sure we know they suck!

I'm not about to turn off all of my features to overclock higher. I'd rather have 400MHz with everything except leagacy USB vs 800MHz with nothing any day of the week.
Click to expand...
Agree with you, overclcok till the point there is good returns but when you start having to sacrifice neccessities , its not worth it.

I myself am going to saee what the max is for the processor but that said i will then be it happy running at 3.5ghz . I have seen after that there is not that much in return for the E6600 .

Also i will be the lucky one to get it at 3.5ghz cos the average is about 3.2ghz , still not bad i guess.
 
try the 0502 beta bios. I had the exact same problem (with my 6600 and P5B dexlue), it would boot then error in orthos or prime in 2 seconds. flashed to the 0502 left the voltages on auto, set my ram to 1000 and my fsb to 334 and it's been orthos stable for 9 hours.
 
blank said:
try the 0502 beta bios. I had the exact same problem (with my 6600 and P5B dexlue), it would boot then error in orthos or prime in 2 seconds. flashed to the 0502 left the voltages on auto, set my ram to 1000 and my fsb to 334 and it's been orthos stable for 9 hours.
Click to expand...
Ya a buddy of mine said the same thing last night, gonna try that soon and see what happens.
 
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