The Official X2 Overclocking Discussion Thread

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Originally Posted by Major

I've got an X2 3800+ coming today via fedex, I should have results later tonight. I'm hopeing that it's NOT a fluke ! lol

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I am since I don't want to believe my X2 4400+ will be outmatched by the 3800+ but only 512k cache right? even if it does 2.9ghz I'd rather do my 2.7ghz with 1M cache instead to be honest. Most newer games and definately any hardcore apps utilize the extra cache.

With my X2 I can rip/decode DVD to Mpeg4 in 24 minutes, since it is multithreaded app using 20 threads I believe I am limited by the DVD read speed for the conversion process, going to try an AVI from HDD sometime soon to see if it is much faster, would love to see 100% Cpu utilization from it.

Well if it isn't a fluke, maybe the 44 and 48's new stepping will even clock higher, but something tells me probably not.

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Originally Posted by xgman

That's on air? That would make this 3800 better than 95% of all X2's including the 4800+. Fluke or trend? What is the new stepping?

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Yes it is on air! I ran 2x prime for 12hrs at 2.95ghz at 1.60v. This morning my Mushkin took a sh**! I am a little pissed. I just called newegg to get an RMA and just ordered some G.skill LE's. Right now I am priming again with my OCZ's. But its stable as can be! My stepping is--

CHBHE 0526UPBW

Guys what would you say was the average overclock for the X2's? 2.6-2.7Ghz? Is there anyone who is struggling get to 2.6Ghz?

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Originally Posted by nicholarse

Guys what would you say was the average overclock for the X2's? 2.6-2.7Ghz? Is there anyone who is struggling get to 2.6Ghz?

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From all the reading and posts I've seen 2.6-2.7 is a reasonable expectation unless poor cooling is involved. I did 2.532 stock vcore and from that to 2.7 with 1.58v XP-120 with good case cooling.

I doubt anyone has struggled for 2.6, maybe slight vcore bump to 1.4x but if you think about it 2.2 - 2.6 very nice OC especially at the price of 2.4 ghz 4600 and 4800

the new 4400+ i got is this stepping

CCBWE 525UPMW

it hit 11x250 1no prob before my mobo :banana::banana::banana::banana: the bed, i played around for about an hour at these speeds gaming etc no reboots or wierdness at all.

It was loading into windows no prob at 260 when it died, no blue screens etc, it was past the point where it would have locked up.

all i wanted out of this puppy was 11x 250 at tight timings so im happy regardless. dual core 2.75 ghz 2-2-2-5 is alot of performace.

OK, I had another play with this processor tonite. I noticed that core 2 seemed to be failing at 2.6ghz. Instead of running my RAM 260 1:1, I would run a divider (youll see in the screenshot) as PRIME kept failing quickly. I dropped FSB to 240 and seemed to be stable at 1.45v. Really need to burn the second core in. I read here that on some of these chips, core 2 needed to be burned in a bit. So, 260fsb (div 9/10) 1.54v, 2.6ghz.........

Set PRIME95 to use Core 2, and then set a SUPER PI 16m running on CORE 1, then set a 3dmark01 benchmark running. In the screen shot, you can see the 2 processors still processing PRIME95 (right of CPU Usage) and Super PI (left side of CPU usage) and 3dmark01 has just finished.

Heres the screenshot: -

http://i5.photobucket.com/albums/y15...e/untitled.jpg

I quite like this processor. Not too hot either (air cooling). Pity its in my wifes machine !!! She keeps wanting to play Roller Coaster Tycoon 3 while I wanna bench ! LOL

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Originally Posted by benktlottie

OK, I had another play with this processor tonite. I noticed that core 2 seemed to be failing at 2.6ghz. Instead of running my RAM 260 1:1, I would run a divider (youll see in the screenshot) as PRIME kept failing quickly. I dropped FSB to 240 and seemed to be stable at 1.45v. Really need to burn the second core in. I read here that on some of these chips, core 2 needed to be burned in a bit. So, 260fsb (div 9/10) 1.54v, 2.6ghz.........

Set PRIME95 to use Core 2, and then set a SUPER PI 16m running on CORE 1, then set a 3dmark01 benchmark running. In the screen shot, you can see the 2 processors still processing PRIME95 (right of CPU Usage) and Super PI (left side of CPU usage) and 3dmark01 has just finished.


I quite like this processor. Not too hot either (air cooling). Pity its in my wifes machine !!! She keeps wanting to play Roller Coaster Tycoon 3 while I wanna bench ! LOL

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You may find (as I have) that it isn't the "core 2 or core 1 failing" that is the issue here. It is in fact the heat and stress of BOTH cores 100% stressed. I'm at 246x11 2.7Ghz on 4400+ and while it is very stable at 2.7 it will occasionally fail large FFTs prime95 after many many hours 7-10 hours, but when testing each core separately there are never any failures as long as both cores aren't stressed 100% for hours on end, which obviously without any (or should I say very few) apps currently in operation won't be happening anytime soon so I'm content at my current 2.7's stability.

this other relative
computer computer performance

Dhrystone 2.1 13946 11682 kDhryst. 119 percent
Whetstone 2833 2522 MFLOPS 112 percent
Eight queens problem 18195 17665 pps 103 percent
Matrix operations 364936 148309 k ops 246 percent
Number crunch 412280 370078 k ops 111 percent
Floating point 43755 39423 k ops 110 percent
Memory throughput 1618531 603339 kB/sec 268 percent

Total CPU 169 percent
Total FPU 111 percent
Average 152 percent

Application Performance 165 percent

Motherboard: - DFI nf4 SLI-D
2 x 256mb GEIL 'test' 1.5-2-2-5 PC4000
FSB: - 260 (9/10 divider) x 10 multi = 2600mhz
Air Cooling

:woot:

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Originally Posted by benktlottie

OK, I had another play with this processor tonite. I noticed that core 2 seemed to be failing at 2.6ghz. Instead of running my RAM 260 1:1, I would run a divider (youll see in the screenshot) as PRIME kept failing quickly. I dropped FSB to 240 and seemed to be stable at 1.45v. Really need to burn the second core in. I read here that on some of these chips, core 2 needed to be burned in a bit. So, 260fsb (div 9/10) 1.54v, 2.6ghz.........

Set PRIME95 to use Core 2, and then set a SUPER PI 16m running on CORE 1, then set a 3dmark01 benchmark running. In the screen shot, you can see the 2 processors still processing PRIME95 (right of CPU Usage) and Super PI (left side of CPU usage) and 3dmark01 has just finished.

Heres the screenshot: -

http://i5.photobucket.com/albums/y15...e/untitled.jpg

I quite like this processor. Not too hot either (air cooling). Pity its in my wifes machine !!! She keeps wanting to play Roller Coaster Tycoon 3 while I wanna bench ! LOL

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Hey benktlottie oc is looking good! Keep tweaking thats all I did. My current oc is 2.95ghz at 1.6v. What is your stepping?

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Originally Posted by pentium777

You may find (as I have) that it isn't the "core 2 or core 1 failing" that is the issue here. It is in fact the heat and stress of BOTH cores 100% stressed. I'm at 246x11 2.7Ghz on 4400+ and while it is very stable at 2.7 it will occasionally fail large FFTs prime95 after many many hours 7-10 hours, but when testing each core separately there are never any failures as long as both cores aren't stressed 100% for hours on end, which obviously without any (or should I say very few) apps currently in operation won't be happening anytime soon so I'm content at my current 2.7's stability.

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Good point. I wonder if this is the reason behind my wifes problem with her game !!! She plays Roller Coaster Tycoon 3 (this is her machine with the dual core in) and since installing this processor, she gets crashing every 30 minutes. I have noticed this chip gets quite warm when really stressed. I ran PRIME for 12 hours yesterday and heres a screen shot, and it didnt get too hot): -

http://i5.photobucket.com/albums/y15...IME10hours.jpg

Real low voltage for stability (I checked in the BIOS and voltage was 1.325v)

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Originally Posted by njkid32

Hey benktlottie oc is looking good! Keep tweaking thats all I did. My current oc is 2.95ghz at 1.6v. What is your stepping?

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I'll need to take a look. I was so excited when it arrived, it went straight in !!! I bought it Friday morning at overclockers.co.uk, I think it was the first batch, wk25.

Is the 2.95 stable on both cores ? and on air ?

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Originally Posted by benktlottie

I'll need to take a look. I was so excited when it arrived, it went straight in !!! I bought it Friday morning at overclockers.co.uk, I think it was the first batch, wk25.

Is the 2.95 stable on both cores ? and on air ?

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Yeah I stopped prime (which I run 2 of them) at 12hrs last night. But sad to say this morning I killed my Redlines. I did put my OCZ in and am running 2.95ghz at 1.6v again just to make sure its still stable. I have ordered some G.skill LE 4400's to replace them. My stepping is-- CHBHE 0526UPBW so if your week is 25 or 26 you prolly have similar clocks as me. Just keep those volts down cuz these get HOT. I did take the IHS off so my temps are pretty low on air. My load temp at 1.6v is 44-45c. It will be underwater next month..

just got my 4400 x2 retail cpu. code is ccbwe 0522mpmw. right now i'm priming95 with cpu0 or core1 or whatever you call it. cpu is at 11x245 or 2695. it seems like the second core is a P.O.S :(. i can't even running prime95 for 1 min on this core :(. i read alot of threads about 1 core is bad in dual core and was hoping it won't happen to me. i guess i can't do anything about this right :(. next i'm going to try 250 or 255 htt :).

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Originally Posted by benktlottie

Good point. I wonder if this is the reason behind my wifes problem with her game !!! She plays Roller Coaster Tycoon 3 (this is her machine with the dual core in) and since installing this processor, she gets crashing every 30 minutes. I have noticed this chip gets quite warm when really stressed. I ran PRIME for 12 hours yesterday and heres a screen shot, and it didnt get too hot): -

http://i5.photobucket.com/albums/y15...IME10hours.jpg

Real low voltage for stability (I checked in the BIOS and voltage was 1.325v)

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As likely roller coaster tycoon is single threaded like most every game, when you see the .exe process set affinity to CPU 0 or 1 but not both, lots of games having problems with both CPU affinities set. Alternatively what I do is set explorer.exe to use CPU 0 and most game .exes after that run only on 1 cpu (found this just out of luck) but that is a pretty low vcore actually for 2.6ghz Let me know in a PM which solves it

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Originally Posted by dng29

just got my 4400 x2 retail cpu. code is ccbwe 0522mpmw. right now i'm priming95 with cpu0 or core1 or whatever you call it. cpu is at 11x245 or 2695. it seems like the second core is a P.O.S :(. i can't even running prime95 for 1 min on this core :(. i read alot of threads about 1 core is bad in dual core and was hoping it won't happen to me. i guess i can't do anything about this right :(. next i'm going to try 250 or 255 htt :).

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Need more information what vcore you running, which prime95 test etc etc. Send PM if you like also will help you out, but don't have that stepping myself. Why are you going to try 250 or 255 if it won't do 245? :confused:

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Originally Posted by pentium777

Need more information what vcore you running, which prime95 test etc etc. Send PM if you like also will help you out, but don't have that stepping myself. Why are you going to try 250 or 255 if it won't do 245? :confused:

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hehe i should be more precise :). vcore is 1.55 and cpuz reports 1.504. i'm only running prime95 test for cpu, small ff something right. i'm not stressing memories here. i figure 245 htt is priming fine right now with 1 core, cpu0, i figure i try my luck with 250 or 255 htt to see if it will boot into windows. i'm running this mod prime95 with the green GO window. i think one of the core is definitely a P.O.S :).

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Originally Posted by dng29

hehe i should be more precise :). vcore is 1.55 and cpuz reports 1.504. i'm only running prime95 test for cpu, small ff something right. i'm not stressing memories here. i figure 245 htt is priming fine right now with 1 core, cpu0, i figure i try my luck with 250 or 255 htt to see if it will boot into windows. i'm running this mod prime95 with the green GO window. i think one of the core is definitely a P.O.S :).

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1.55v is definately a bit up there, are you running a divider to ensure memory isn't an issue or are you running PC4000?

It could be a possibility of a different stepping you've come across, I am sure people thinking of purchasing a 4400+ might want to know this info for sure. Also multi has given me a hassle too, BSOD just the other night with 270x10 but 246x11 works excellent go figure since the 246x11 is just slightly more than 270x10 but works flawlessly. I'd go with different multis for testing make sure mem isn't overextended either, check temps, mess with higher and lower vcore etc.

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Originally Posted by pentium777

1.55v is definately a bit up there, are you running a divider to ensure memory isn't an issue or are you running PC4000?

It could be a possibility of a different stepping you've come across, I am sure people thinking of purchasing a 4400+ might want to know this info for sure. Also multi has given me a hassle too, BSOD just the other night with 270x10 but 246x11 works excellent go figure since the 246x11 is just slightly more than 270x10 but works flawlessly. I'd go with different multis for testing make sure mem isn't overextended either, check temps, mess with higher and lower vcore etc.

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yea i know 1.55v is up there, but i ran prime95 for 2 hours and full load was around 42. that's odd. i'm running my g.skill pc3200 LE at 11x245 with 1:1 sync ratio and 1T timing. the room is pretty hot though. i guess i'll have to play around more with bios settings. btw, i'm using 623-1. what's the best bios for dfi nf4 sli-dr with x2? thanks.

I hope you get your problems solved soon dng29, its damn hard when more than a few have such high FSB with both cores working well and you are one of the few lower performance ;)

Anyway with cores like njkid32's around it is making it just soooooo hard to keep my promice to myself NOT to buy X2 before '05, a few other items like WC need to come first for me :nono:

benktlottie, would you say that the new Vapochill Extreme HSF is better than the XP120 ??

http://img74.imageshack.us/img74/482...t3125130dh.png


CPU: 2880MHz 1.52V
Mem: 260MHz 3.4V 2-2-2-5

http://valid.x86-secret.com/show_oc?id=31567

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Originally Posted by sUpervizer'

[IMG]
CPU: 2880MHz 1.52V
Mem: 260MHz 3.4V 2-2-2-5

http://valid.x86-secret.com/show_oc?id=31567

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Nice OC with XP120 ! :toast:

can you pass 2 instances of prime like that ?

Mine Gave me such a Fit But finally got it 2x P95 stable om AIR with an XP-120..

was hoping for better results but can live with this..

Wow....just found this thread...it's how old?

Anyway, I think I might have some numbers and screens up tomorrow after I get some sleep. The 2800 in my sig isn't dual prime stable, but I don't care...I don't think I'd run it much higher than 2650 for 24/7 even though it can (and I don't want to push 4 sticks of RAM to hard with this board...something tells me it couldn't take it). I want to be able to push it harder later when I feel it getting slow anyway. :D

IIRC...2776 is dual 32M stable, maybe it was 2767. Anyway, screenies tomorrow!

EDIT: At 277x10 3-3-3-0 2T 8BI, it's essentially the same performance as an FX-57 in single threaded apps....what's not to love about having TWO of them?!

well, I found a nice stable OC for my 4400+

2.6GHz dual Prime 95 stable for 39 hours
1.5 vCore

Now, I'll probably play around with my RAM and multipliers a little

http://www.supload.com/thumbs/default/39 hours.JPG

I really would like 2.7GHz, but one of my cores is crappy and even when I maxed out my vcore at 1.55v on my A8N Premium, it wouldn't last 5 min at 2.64GHz under Prime 95

so 2.6GHz looks like it for this chip with removing the IHS, which I'm not doing


should I sell it and pickup a x2 3800+?