June 18, 201312 yr Good Morning Guys!!!! Here is a list of Ivybridge CPU's and their overclocking potential: Below is a guide on how to read Intel CPU Batch Number which is 8 characters long with a mix of number and alphabet which represents a value or description for each field. The first character represents the place where the CPU is assembled by assembling the IHS (Integrated Heatsink) with the chip followed by boxing. The chip extracted from the wafer is only processed in USA which is later distributed to the assembly plant around the world to make sure all CPU batch have the equivalent highest quality. The second character represents the year it is manufactured. Example 7 represents 2007. The third and fourth character represents the total week from January of that year. So if its 30, it means approximately 30 weeks divided by 4 weeks per month gives 7.5 (around July mid). The fifth character represents the CPU Stepping. It comes in 3 different flavors which is A (uses less volt but produces more heat – great for extreme water cooling or liquid nitrogen or DICE aka Dry-Ice), B (uses more volt but produces less heat – best for air cooling or entry-level water cooling) and C (very rare – balance of both world A and B). The last 3 characters are Intel CPU serialization codes. Example: L707A723 — 1st letter or digit = plant code: (Malaysia)0 = San Jose, Costa Rica1 = Cavite, Philippines3 = Costa Rica6 = Chandler, Arizona7 = Philippines8 = Leixlip, Ireland9 = Penang, MalaysiaL = MalaysiaQ = MalaysiaR = Manila, PhilippinesY = Leixlip, Ireland 2nd digit = Year of production: (2007)3rd & 4th digits = week: (7th week )5th digit = Stepping (A or B or C)6th – 8th digits = lot number: (723)10th – 13th digits = serialization code (—) Stepping A = less volt more heat (best with full water cooling).Stepping B = more volt less heat (best with air or entry water cooling). Intel 3rd Generation CPU Ivy BridgeBatch Number | CPU Name | GHz | Voltage3213B440 3770K 4400 1.17L152B586 3770K 4700 1.24L204B321 3770K SkyyPunkL204B321 3770K 4600 1.21 MurlockeL204B321 3770K 4800 1.30 michaelrwL204B343 3770K 4700 1.28; 4900 1.34 JcyleL206A973 3770K DaClownieL206B314 3770K 4800 1.35 KuuFAL206B314 3770K 4500 1.20L206B314 3770K 4600 1.32 samwichesL206B468 3770K kxduL206B468 3770K Special_KL211B472 3770K 4800 1.28L211B477 3770K 5000 1.38 Darth OscarL212B228 3770K 4600 1.22; 4700 1.28; 4800 1.343204B958 3570K 4500 1.17; 4700 1.22; 4800 1.25 SonDa53208C060 3570K 4500 1.253209B767 3570K 4500 1.21 Ben the OCer3210C023 3570K 4400 1.20L152B659 3570K 4500 1.26L202B743 3570K 4500 1.10+L204B361 3570K DeXelL206B524 3570K JintoL208B128 3570k 4900 1.35 adamski07L209C112 3570K 4700 1.25L209C223 3570K 4500 1.143209C030 3570K 4500 1.22 purdueman Link: http://pc.ayumilove.net/list-of-intel-cpu-batch-number/ (original link- list was posted November 25, 2012) P.S. Found this list yesterday, let me know if any of you has cpu's from this list so we can corroborate the accuracy. Happy Flying!!!!
June 18, 201312 yr Looking through the plastic on top of the box at very, very small type I see 3304A646. Sounds like I'll need less volts, but have a nice room heater... :lol:
June 18, 201312 yr Yes sir less voltage but on the flip side you get free heater ..... B) I'm glad this info is useful P.S. I'm trying to cross reference this info to see how factual is it.... Thanks man for been the first!!!!
June 18, 201312 yr Stepping C is in between A & B. So in other words is a little better than A. It depends P.S. What is your current voltage and temp ?
June 19, 201312 yr For me... 3770K Batch # 3226C073 At 4.5 GHz at the moment. Voltage is 0.030 offset, which results in 1.304 under load. Temps in FSX are around 55 degrees with an NH=D14. It will do 4.6 without any trouble, but higher and temps shoot up. As you'd expect, due to the crappy Ivy Bridge TIM.
June 19, 201312 yr It will do 4.6 without any trouble, but higher and temps shoot up. As you'd expect, due to the crappy Ivy Bridge TIM. Not keeping up with everyone's system, but I take your comments to mean you didn't de-lid? I'm still debating, but am leaning towards a de-lid. Seems like I'm always looking for new ways to waste my time... and money!! :wacko:
June 19, 201312 yr Great, got it Yes your best bet is to de-lid Their is 2 ways: 1. Razor (their is a tutorial here already) 2. Vice P.S. Good temp and voltage. On the de-lid it all comes down to how willing are you to forfeit the warranty. All in all lucking good!!!! Happy flying!!!!
June 20, 201312 yr Well no, I have no intention to de-lidd. I was seconds away from doing so a while back. I had downloaded the CPU schematics from Intel, so I knew exactly where the die was in regard to the PCB, had all tools prepared... and then it dawned on me that it was pointless. The average 3770K overclock after de-lidding is a mere 200 MHz That equates to one or two frames per second. I came to the conclusion that in practical terms it was totally unnecessary. If I was utterly desperate for even two FPS it would be a different story, but I'm not.
June 21, 201312 yr Not keeping up with everyone's system, but I take your comments to mean you didn't de-lid? I'm still debating, but am leaning towards a de-lid. Seems like I'm always looking for new ways to waste my time... and money!! :wacko: That's correct. No de-lidding for me. I certainly wouldn't deride those who choose to de-lid though. But I would say that those who choose to do so, should consider how little difference it will make in terms of frame rate. I may choose to de-lid in the future, but if I do it will be for the hell of it, for fun, just to see what I can achieve, not for the minimal added performance.
June 21, 201312 yr Is there an advantage to de-lid because if successful the lower heat should extend the life of the chip? Not sure if the cost/benefit is worth it in this regard but perhaps this goes into the thinking. A list like this would be useful for the new Haswell chips. I wonder if anyone has started one? Mark CYYZ
June 21, 201312 yr Mark, Good point, if not for performance stand point at least for longevity is a very good reason. P.S. Happy Flying!!!!!
June 21, 201312 yr Well no, not really true in practice, if we are saying anything greater than 4.5, post de-lid, for a 3700k is unnecessary, then with a high end cooler you will be at approximately 55 degrees in FSX.And 55 degrees is hardly a temp that's associated with premature degradation. It's a low temp for a modern CPU. Intel designed the chip to have an acceptable lifespan with the stock cooler, and the stock cooler, even without an overclock will be running near those temps.Don't forget, CPU lifespan is measured in thousands of hours, and we enthusiasts replace our kit far sooner than that.
June 21, 201312 yr Martin, That your thought's (good for you); I'm here just to help people with my research and facts, not fanaticism. Happy Flying you all!!!! Mark, As soon as I fine a List I will post it here.
Create an account or sign in to comment