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See how good your chip is without any testing! (ivy bridge)

post #1 of 9
Thread Starter 
I'm using 3770k + gigabyte sniper 3 motherboard.

In the bios snapshot below, check out the CPU vcore line: it says 1.220V (I'm at stock in this photo, no adjustments yet). That number is fixed - it doesn't change when you change any settings. It's the voltage you get if you set vcore to 'normal'. THAT NUMBER IS DIFFERENT FOR EACH CHIP. I think they must test each chip and set that level based on stability testing with each chip.


For example, in this overclocking guide he's using a chip with a "normal" vcore of 1.120V, which is 0.1 volts lower than mine. He also says this seems to be a very good chip for overclocking, and he seems to get stable overclocks with about 0.1 volts less than I do (for same overclock).

Bottom line: check out your "normal" vcore number and it will quickly tell you if you've got a good chip or not. Based on the screenshots I've seen, 1.120V is excellent and 1.220V is below average. I'd be interested in knowing what other people's numbers are. For comparison, give your chip, normal vcore, and the vcore you need to be stable at 4.5 GHz (measured vcore, not your bios setting).

My numbers:
Chip: 3770k
Normal vcore: 1.220V
Vcore needed for 4.5 GHz: 1.32
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post #2 of 9
This is very interesting. Even though I don't overclock, I just bought a 3770K at Microcenter and it seems to be a very recent issue batch 3314B382, made 14th week of 2013 made in costa rica and normal Vcore of 1.104 V
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post #3 of 9
Thread Starter 
Nice!!!thumb.gif
Care for a swap?! rolleyes.gif
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post #4 of 9

dont think this is entirely true, my costa rica chip (3423C batch) has a vcore below 1.2 (1.something cant remember off hand) but its a average overclocker... (needs about 1.3 for 4.5ghz)

post #5 of 9
Quote:
Originally Posted by DF is BUSY View Post

dont think this is entirely true, my costa rica chip (3423C batch) has a vcore below 1.2 (1.something cant remember off hand) but its a average overclocker... (needs about 1.3 for 4.5ghz)

what matter is whole batch number not only the first 4
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post #6 of 9
Thread Starter 
Actually, I'm not even sure I'm really stable at 4.5 GHz with 1.32 volts Vcore. That's what I needed just to boot and get prime95 started, but I had to bail out after a minute or two because my hottest core was getting over 100C.
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BattleStation
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TV Buddy
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CPUMotherboardGraphicsGraphics
i7 3770k Gigabyte Sniper G1 Sniper 3 Gigabyte Gaming G1 GTX 970 Gigabyte Gaming G1 GTX 970 
RAMHard DriveHard DriveOptical Drive
Corsair Vengeance Pro 16 GB Crucial MX 100 WD Green 3TB Asus Blu-Ray 
CoolingOSMonitorMonitor
CM Hyper 212 Evo Win7 Pro  Dell U2713HM 2560x1440 Acer Predator XB270HU 
KeyboardPowerCaseMouse
CM Quickfire TK Seasonic X-1050 Antec 1100 Logitech G500s 
Mouse PadAudioAudio
Logitech G440 Logitech G35 headset StudioSpares Powered Studio Monitors 
CPUMotherboardGraphicsRAM
i5-4690 Asus Z97-A EVGA GTX 670 FTW Crucial Ballistix 4GB x 2 
Hard DriveHard DriveOptical DriveCooling
Western Digital Caviar Green 3 TB Mushkin Chronos Deluxe 240 GB SSD Pioneer BDC-207DBK Blu-Ray Reader, DVD/CD Writer Noctua NH-L12 
CoolingOSKeyboardPower
Scythe Gentle Typhoon 37.0 CFM 120mm x 2 Windows 8.1 Pro Logitech K400 SeaSonic G550 
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post #7 of 9
Quote:
Originally Posted by Luck100 View Post

Actually, I'm not even sure I'm really stable at 4.5 GHz with 1.32 volts Vcore. That's what I needed just to boot and get prime95 started, but I had to bail out after a minute or two because my hottest core was getting over 100C.
Delid your cpu
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post #8 of 9
Quote:
Originally Posted by PontiacGTX View Post
 
Quote:
Originally Posted by DF is BUSY View Post

dont think this is entirely true, my costa rica chip (3423C batch) has a vcore below 1.2 (1.something cant remember off hand) but its a average overclocker... (needs about 1.3 for 4.5ghz)

what matter is whole batch number not only the first 4

i thought batches didnt matter much concerning IVY/HASWELL as its all lottery

post #9 of 9
Quote:
Originally Posted by DF is BUSY View Post

i thought batches didnt matter much concerning IVY/HASWELL as its all lottery
Sometimes ivy bridge batches has same ocing ability/low vcore
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