i5-2500K/2600K batch number and o/c results

[Alepale]

Yes, P67-UD4-B3 is very good.

[Dumo]

Cold bugged 2600K

Batch 3049A327, won't even boot (4E) @ 48X with -39C evap. temp. (probly around -20C core temp)...but when I turned off the SS it went 55X. Lol





Dang!!, where is my Corsair A50

[hersounds]

First touch! I love the giga mobo...can push more but at the moment i use intel stock cooling ( nice)

[hersounds]

5 Ghz...with intel stock cooler! jaja nice!

i7 2600k L104A486



http://valid.canardpc.com/show_oc.php?id=1890885

[andressergio]

Cold bugged 2600K

Batch 3049A327, won't even boot (4E) @ 48X with -39C evap. temp. (probly around -20C core temp)...but when I turned off the SS it went 55X. Lol





Dang!!, where is my Corsair A50

lol

testing here same batch Dumo

got it on town

# A2172 3049A351 x55 didnt maxed out does nicely on 5GHz 24/7 Costa Rica batch, for x55 on water need lots of volts to get into win

cheers !
Sergio

[andressergio]

# A2172 3049A351 x55 didnt maxed out does nicely on 5GHz 24/7 Costa Rica batch, for x55 on water need lots of volts to get into win but its a cool chip



Uploaded with ImageShack.us

[hersounds]

It's a nice batch andres...what do you think about mine? L104A486



http://www.ploader.net/files/2dfd46c...5debfbb226.jpg

[andressergio]

It's a nice batch andres...what do you think about mine? L104A486



http://www.ploader.net/files/2dfd46c...5debfbb226.jpg

Como estas amigo argentino !

Its a good batch as it does nice on low volts did you try x50 ? there's the fun !

cheers !
Sergio

[noobzed]

I know this isn't the right place, but WTB a x56 x57 3D bench 2500K 2600K, so drop me a PM if we can make a deal

[hersounds]

I know this isn't the right place, but WTB a x56 x57 3D bench 2500K 2600K, so drop me a PM if we can make a deal

K series overclocking and voltage range recommendations

Quick Note regarding Voltage Scaling – Internal binning of both D1 and D2 parts we discovered consistent voltage scaling patterns.
1. For K series parts, the stock voltage supplied will allow for consistent overclocking generally up to a multiplier of 43x. There is potential for the multi to be raised to 44x depending on the load induced. This default voltage range be approx 1.240 to 1.260 under load.
2. Increased range between 44 to 47x multipliers will generally require a voltage range between 1.30 to 1.375V with an LLC recommended setting of high to ultra high.
3. Increasing the range between 48 to 50x multiplier will generally require a voltage range between 1.40 to 1.500 with a LLC recommended setting of ultra high.
4. Increased range between 50 to 52 (52 generally considered peak max multiplier except for rare 54x parts) will generally require a CPU voltage range between 1.515 to 1.535V with LLC at Ultra High and potential fine adjustments to the CPU skew range.

The results below are based on the range of the CPU turbo multiplier when overclocking.
Results are representative of 100 D2 CPUs that were binned and tested for stability under load; these results will most likely represent retail CPUs.
1. Approximately 50% of CPUs can go up to 4.4~4.5 GHz
2. Approximately 40% of CPUs can go up to 4.6~4.7 GHz
3. Approximately 10% of CPUs can go up to 4.8~5 GHz (50+ multipliers are about 2% of this group)
Additionally it is recommended to keep 「C1E」and「EIST」option enabled for the best overclock scaling. This is different than previous Intel overclocking expectations where the best scaling was with disabled power states or power management options.
Update specific to D2 and retail parts: Jan 11 2001
As always ASUS strives to be at the forefront of performance and functionality offered by a quality bios. Keeping this in mind ASUS has been actively working in conjunction with Intel to optimize overclocking potential on ASUS P8P67 motherboards and K series CPUs. With the latest bios revisions ( 1000 series ) or 600 series for ROG specific optimizations have been made to the microcode and corresponding tables that relate to D2 and retail parts. These are improvement are in addition to general improvements in all respects. Present with this new build of the UEFI is a new option. This option / value is “ Intel PPL Overvoltage” this option furthers multiplier scaling considerably.* In addition due to the increase in scaling more exotic forms of cooling cannot be used and will be needed under certain multiplier ranges and corresponding voltages. The general maximum range for the highest performing dual fan air based heastinks still remains 50x to 52x.

source & more: http://hardforum.com/showthread.php?t=1578110

[aussie-revhead]

just scored a 3102C197 best of two worlds costa rica c batch chip. Will report later on OC

Any results on these yet?

Edit- never mind I found it.

Im going to grab a 2500K to test, are these a good batch to get ? 3/C batch Costa Rica?

[aussie-revhead]

Also guys, I have been benching my Asus P8P67 EVO with all voltages other than vcore and vdimm left at default, which if any will help stability at high overclocks?

# A2172 3049A351 x55 didnt maxed out does nicely on 5GHz 24/7 Costa Rica batch, for x55 on water need lots of volts to get into win but its a cool chip

.... pic ....

andres and friends - my current 2600K can complete superPi 1mb at 56x with 1.63v but it needs near that to pass 3D at 5400 and 1.575v at 5200, is this common? Should I keep looking for a better one? Or just up the volts as needed for benching? How far can you go for benching on water before there is a big chance of killing the cpu?

[andressergio]

Also guys, I have been benching my Asus P8P67 EVO with all voltages other than vcore and vdimm left at default, which if any will help stability at high overclocks?



andres and friends - my current 2600K can complete superPi 1mb at 56x with 1.63v but it needs near that to pass 3D at 5400 and 1.575v at 5200, is this common? Should I keep looking for a better one? Or just up the volts as needed for benching? How far can you go for benching on water before there is a big chance of killing the cpu?

well thats very nice my current 55x does the same at your same volts...and for 5400HT 3D bench didnt test this yet but my x54 one needs 1,62 for 3DM11 and 1,58 for 3DMVANTAGE---its ok while temps are good i guess that if you keep pushing on this volts will degrade a bit either way but not that big deal...i use my chips for benching to have some fun and 24/7 at 5GHz then. I would be happy with yours

cheers !
Sergio

[aussie-revhead]

Does anyone know if these rams will run decently on P67:

Corsair Dominator GT CMGTX1 DDR3 (2x2GB) 2400mhz 9-11-9-27-T1

Cheers.

[danielkza]

Does anyone know if these rams will run decently on P67:



Cheers.

Are they Hypers? If positive, they don't seem to mix very well with Sandy Bridge.

[andressergio]

Are they Hypers? If positive, they don't seem to mix very well with Sandy Bridge.

no daniel hypers are flat timmings like 9.9.9.27 that are other chips

[l0ud_sil3nc3]

Are they Hypers? If positive, they don't seem to mix very well with Sandy Bridge.

they should be psc

[kagula323]

Does anyone know if these rams will run decently on P67:



Cheers.

They must be PSC. If I am correct they do well on P67.

[OC Nub]

Picked up a chip today, Batch# 3101A104. Max multi is 56x. Havent done any testing yet, need to get it colder to try 8 threads. Also need to update my CPUZ, vcore set in bios is 1.55v LLC2.

[l0ud_sil3nc3]

Picked up a chip today, Batch# 3101A104. Max multi is 56x. Havent done any testing yet, need to get it colder to try 8 threads. Also need to update my CPUZ, vcore set in bios is 1.55v LLC2.

nice chip these Costa Rica batches seem to be clocking a bit better huh?

[OC Nub]

^Thanks. It looks like there are some good Costa Rica chips. Dumo got a few real good ones.

This chip does better with HT enabled than my others. WPrime 1024m at 5605mhz.

[aussie-revhead]

ocnub - fix up your vcore reading (later cpu-z) or at least tell us what you used ....

They must be PSC. If I am correct they do well on P67.

Any idea what they might clock to on P67? Would they do 2300?

[kagula323]

ocnub - fix up your vcore reading (later cpu-z) or at least tell us what you used ....



Any idea what they might clock to on P67? Would they do 2300?

You need a cpu with good bclk overclocking ability to be able to do 2300MHZ memory on sandy bridge platform. The memories can, but u must have a cpu and a mobo able to do that too.
PSC is verry good memory for P67, and Corsair Dominator GT CMGTX1 DDR3 (2x2GB) 2400mhz 9-11-9-27-T1 are between the higher binned PSC chips. I think you'll like them.

[kagula323]

^Thanks. It looks like there are some good Costa Rica chips. Dumo got a few real good ones.

This chip does better with HT enabled than my others. WPrime 1024m at 5605mhz.

nice one OC Nub ... have fun with it :

[aussie-revhead]

You need a cpu with good bclk overclocking ability to be able to do 2300MHZ memory on sandy bridge platform. The memories can, but u must have a cpu and a mobo able to do that too.
PSC is verry good memory for P67, and Corsair Dominator GT CMGTX1 DDR3 (2x2GB) 2400mhz 9-11-9-27-T1 are between the higher binned PSC chips. I think you'll like them.

2300 was a speculative figure, just to try BCLK overclocking at 2133 ram multi so 2200-2250 is more realistic (thats 103-105 Mhz BLCK). there is no way I would get to 2300 (107 BCLK but it would be good to know your not ram limited). So which PSC rams would be better than those?

Cheers.