The Official X2 Overclocking Discussion Thread

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Originally Posted by p0tempkin

The simple fact is that these X2s run about 5-10C higher than single-cores at similar speeds/voltages.

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That's the reason why I am quite sure that removing the HS will result in much better OC.

Removing HS won't give any advantages and only slightly lower temperatures at low clocks with low volts. But the higher voltage and clock goes, the higher the heat output of the core and the higher the isolating effect of the heatspreader.

Got a 3700+ Sandy running very nice at low voltages until 2700 MHz. However, 2800 MHz needed 1.64V and temperatures were very high (~50°C). Cutting the HS off resulted in 2800 MHz @ 1.53V rockstable and only 38°C load. Maxed out without HS at 2950 MHz @ 1.66V. However, I have to admit that this one had a really worse mounted HS.

Anyway, X2's naturally generate more heat than single-cores so that's why they need better cooling. And removing HS will give massive improvement, I think.

My IHS is off of my 4800+ and temps are in the mid to high 30's at 2900 but I never tried it with the spreader, so I don't know how many deg it saved, but 99% of the time the temps will be lower without the spreader on any cpu.

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Originally Posted by xgman

My IHS is off of my 4800+ and temps are in the mid to high 30's at 2900 but I never tried it with the spreader, so I don't know how many deg it saved, but 99% of the time the temps will be lower without the spreader on any cpu.

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Well, 35-40°C sound amazing w/o heatspreader! Do you have some pictures of the "naked" X2 ?

2900 MHz 2x Prime95 v24.13 stable? What voltage?



Some guys wanted to see Cinebench:

http://mitglied.lycos.de/xxmartin99/...bench_2805.jpg

:D

Well i keep getting random reboots on my 4400+

i have been using x4 HTT at 240-250 on my mushkin redline, speeds ranging from 2640-2750, ive dropped down to 240x10.5 and it seems stable.

i dont know if you guys can tell if im missing something?

volts are

1.63 core
1.28 LDT
1.58 N bridge

i am watercooled and even though its been hot here in the UK for the last few days core temps are not going over 42 under load. idle they are about 32-34
PWMIC temps goto around the 50-52 mark and chipset 44-46

i need my system to be up 24/7 but obviously want it clocked to the maximum stababilty ( is that even a word? :( )

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Originally Posted by xxmartin

Well, 35-40°C sound amazing w/o heatspreader! Do you have some pictures of the "naked" X2 ?

2900 MHz 2x Prime95 v24.13 stable? What voltage?




:D

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1.62v (Water Storm G5)

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Originally Posted by pcdoc1

.... if that's the case, you're still giving up the cache aren't ya. :)

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Cache isn't a big deal. Its about 1-2 percent, real-world.

I'll take the lower latency and higher overclock for CPU/memory any day.

Is anybody having stability issues with X2? I've switched motherboards, RAMs, graphics card, power supplies, sound cards, etc. and I still can't get rid of the freezing issue. It will freeze very randomly, sometimes hours later, sometimes mins later. This is driving me absolutely crazy, and costing me alot of money. :(

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Originally Posted by h4nc0

Is anybody having stability issues with X2? I've switched motherboards, RAMs, graphics card, power supplies, sound cards, etc. and I still can't get rid of the freezing issue. It will freeze very randomly, sometimes hours later, sometimes mins later. This is driving me absolutely crazy, and costing me alot of money. :(

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Are we talking bluescreen and MACHINE_CHECK exception?

I upped my voltage a notch and it's more stable.

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Originally Posted by xgman

1.62v (Water Storm G5)

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Thank you!

Wow, that baby is real fat. What a large die :slobber: ...

And there are a lot more of those little IC's around the core. I'll have to be very careful to avoid damaging them.

2.9@1.6 - very nice. Seems quite the same what my X2 would be capable of (still 2.8@1.5).

Quote:

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Originally Posted by h4nc0

Is anybody having stability issues with X2? I've switched motherboards, RAMs, graphics card, power supplies, sound cards, etc. and I still can't get rid of the freezing issue. It will freeze very randomly, sometimes hours later, sometimes mins later. This is driving me absolutely crazy, and costing me alot of money. :(

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Had this issue only twice while too high overclocking. The necessary reset took my DFI nF4 SLI-D in long beeping illness (3/4 led's red -> no RAM detected). Only disconnecting from power and remounting the cooler solved it. Dunno what was wrong there.

No, I am talking about 2D desktop screen freezing. ALT-TAB works, and mouse pointer works, for a while after the screen freezes. And a bit later, everything freezes completely.

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Originally Posted by h4nc0

No, I am talking about 2D desktop screen freezing. ALT-TAB works, and mouse pointer works, for a while after the screen freezes. And a bit later, everything freezes completely.

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Are you overclocking?

Nope. Stock speed. :mad:

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Originally Posted by h4nc0

Nope. Stock speed. :mad:

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What cooling?

Try to remount the heatsink. Also try to tighten the screws with different forces.

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Originally Posted by h4nc0

Nope. Stock speed. :mad:

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Memory amount, type, and speed? How much is your power supply?

EXOS watercooling. CPU temp is about 37C. 33C at under water block right by CPU. I've tried both Corsair PC4400 512MB module (2) and Hynix PC3200 1GB module (2). They all have the same problem. Tried Antec 430W. Using Antec 550W now. Also tried running both at the same time (many different combination). Tried both Geforce 6800GT and Ti4200. Same problem. Tried MSI Neo2 Platinum and A8V Deluxe. Both same problem. Running 4 SATA drives. 2x 36GB Raptors. 2x 250GB Hitachi's. No overclock. Re-installed Windows XP SP2 multiple times to make sure. Running Forceware 77.72 and also tried 8X.XX beta. (can't remember which it was)

I honestly don't know what it could be. Maybe bad CPU. Not had one single problem here, only time my system locked up is when I knew I was pushing it too far.

terror, what stepping is your CPU? And are you going to try for a max overclock?

You just isolated the problem to the CPU. Time for a RMA

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Originally Posted by p0tempkin

terror, what stepping is your CPU? And are you going to try for a max overclock?

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Stepping 1.

I haven't reached its max yet, currently running 4x512 @ 2.5-3-3-6 2T. I am getting some brand new OCZ EL Platinum 2x1024 soon, so I'll have 1T and definitely be able to push it even more. I hope to reach 250-255x11 @ 1T, will probably need some more volts, but I think its reachable.

yeah, I just went to the AMD distributor to drop off my X2. They will give me a call tomorrow and let me know what's up with my CPU. :q

Funny thing was, they ran Prime when I was there, and it failed after a few mns. Now if they don't give me a new CPU, I'd be really pissed off. :slobber:

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Originally Posted by h4nc0

yeah, I just went to the AMD distributor to drop off my X2. They will give me a call tomorrow and let me know what's up with my CPU. :q

Funny thing was, they ran Prime when I was there, and it failed after a few mns. Now if they don't give me a new CPU, I'd be really pissed off. :slobber:

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If they don't give you a new one AMD should. AMD 408-749-3060

Tested a 4200+ last night and it was a stinker.

CDBHE 0524RPAW

Did 2.6GHz stable at 1.55V. Would not do 2.7GHz no matter what I tried; errored almost instantly in Prime95. It couldn't even do 2.4GHz at stock VCore.

It's going back. And I'll keep tweaking my 4400+ for now; still trying to get 2.7GHz stable but I don't think it will happen unless I get a better cooler or remove the IHS.

BTW, CPU-Z reported the revision as SH9-E4? Aren't they supposed to be SH9-E6, or is that only for the Toledos?

It's correct, 4200+ has 1MB L2, it's Manchester core.

Toledo has 2MB L2.

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Originally Posted by p0tempkin

BTW, CPU-Z reported the revision as SH9-E4? Aren't they supposed to be SH9-E6, or is that only for the Toledos?

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That's correct. Manchester is E4, Toledo is E6.

Sorry to just drop in for my 1st post, but i'm just about to buy 1 x2 4800+. :D

The question that's bugging my mind is about the cooling! :confused:

I'm pretty much decided on getting a Mach II GT, but i can't seem to find any info (or just probably didn't look hard enough :p: ) about the extreme cooling on these monsters!

I just wanna know if there's something of a cold bug with them, or if anybody have tried it out yet! :hrhr:

Any info?! :rolleyes:

EDIT: Just about the Mach, GT or ST?!