Joined
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1,894 Posts
My batch: Q740A525T
I don't get as lucky as some people, 1.3V 4.0ghz. Maybe my RAM is holding me back.
I don't get as lucky as some people, 1.3V 4.0ghz. Maybe my RAM is holding me back.
What's the best batch code of E8400's?
Hey guys, if you want to post your batch numbers here and Highest stable OC, I'll keep them in post #1 for quick reference. We'll see how the batches hold up to the OC's.
Intel CPU Info
Detailed Info
Here is a great thread by linskingdom on 45nm processors.
I believe this is a record!!
For those with temperature/voltage questions or issues with these CPU's, you might wanna read the following:
My Personal Proof that the Core Sensors are off
e8400 Overheating
Flawed Core Sensor Diode
More Core Sensor Diode Info
Penryn Delay Due to Core Sensor Diodes??
Link 5 (read through)
Tricky's E8400 "Crapped Out"
How To Properly Apply Thermal Compound
Please note, that by sayiing "Official" below, I don't mean that it will be published worldwide on any websites or anything like that, it's just my way of saying thanks for posting your OC's here!
Enjoy!!
Kaxx
Ultra-Official Listed CPU's by highest OC/lowest Vcore
8 Hour Orthos or Prime 95 Stresstest
Q746A377 = 4.20 GHz, 1.3600 volts kaxx
Q746A377 = 4.05 GHz, 1.3520 volts JustMe2
Q745A553 = 4.00 GHz, 1.2400 volts Spinach
Q745A553 = 4.00 GHz. 1.3100 volts zlojack
Q744A761 = 3.90 GHz, 1.4000 volts Clox
Official Listed CPU's by highest OC/lowest Vcore
4-8 Hour Orthos or Prime 95 Stresstest
Q745A567 = 4.05 GHz, 1.2480 volts ThatGuy16
Q746A489 = 4.05 GHz, 1.2800 volts Bulldog 22
Q744A761 = 4.05 GHz, 1.3900 volts x2s3w4
Almost Un-Official Listed CPU's by highest OC/lowest Vcore
Less than 4 Hour Orthos or Prime 95 Stresstest, or at least a screenshot of CPU speeds.
E3110 Q750A158 4.40 GHz, 1.37 volts Geekman
E3110 Q805A165 4.10 GHz, 1.37 volts MADMAX22
Q745A567 = 4.05 GHz, 1.2720 vix
Q748A115 = 4.05 GHz, 1.4400 volts Carpenter]
Q806A026 = 4.00 GHz, 1.3125 volts mothow
Q805A249 = 3.80 GHz, 1.2720 volts tetemagique
Q808A169 = 3.00 GHz, 1.1000 volts kpo6969
Un-Official Listed CPU's by highest OC/lowest Vcore**
No Stresstests provided i.e. word of mouth (but it's never too late)
Q746A488 = 4.50 GHz, 1.4685 volts c230K
Q746A519 = 4.30 GHz, 1.3900 volts NCspecV81
Q751A447 = 4.20 GHz, 1.3930 volts Celoth
Q743A748 = 4.13 GHz, 1.3375 volts iewgnem
Q743A748 = 4.05 GHz, 1.3500 volts Ledge 68
Q746A377 = 4.00 GHz, 1.3000 volts mct75
Q744A698 = 4.00 Ghz, 1.3000 volts viceroy
Q740A525 = 4.00 GHz, 1.3000 volts Oblivion77
Q746A366 = 4.00 GHz, 1.3700 volts Rolandoo
Q746A483 = 3.78 GHz, 1.3000 volts
Q746A489 = 3.60 Ghz, 1.1850 volts lenzo
Q746A519 = 3.60 GHz, 1.1250 volts Jarrsten
Intel CPU Info
Detailed Info
Here is a great thread by linskingdom on 45nm processors.
I believe this is a record!!
For those with temperature/voltage questions or issues with these CPU's, you might wanna read the following:
My Personal Proof that the Core Sensors are off
e8400 Overheating
Flawed Core Sensor Diode
More Core Sensor Diode Info
Penryn Delay Due to Core Sensor Diodes??
Link 5 (read through)
Tricky's E8400 "Crapped Out"
How To Properly Apply Thermal Compound
Please note, that by sayiing "Official" below, I don't mean that it will be published worldwide on any websites or anything like that, it's just my way of saying thanks for posting your OC's here!
Enjoy!!
Kaxx
Ultra-Official Listed CPU's by highest OC/lowest Vcore
8 Hour Orthos or Prime 95 Stresstest
Q746A377 = 4.20 GHz, 1.3600 volts kaxx
Q746A377 = 4.05 GHz, 1.3520 volts JustMe2
Q745A553 = 4.00 GHz, 1.2400 volts Spinach
Q745A553 = 4.00 GHz. 1.3100 volts zlojack
Q744A761 = 3.90 GHz, 1.4000 volts Clox
Official Listed CPU's by highest OC/lowest Vcore
4-8 Hour Orthos or Prime 95 Stresstest
Q745A567 = 4.05 GHz, 1.2480 volts ThatGuy16
Q746A489 = 4.05 GHz, 1.2800 volts Bulldog 22
Q744A761 = 4.05 GHz, 1.3900 volts x2s3w4
Almost Un-Official Listed CPU's by highest OC/lowest Vcore
Less than 4 Hour Orthos or Prime 95 Stresstest, or at least a screenshot of CPU speeds.
E3110 Q750A158 4.40 GHz, 1.37 volts Geekman
E3110 Q805A165 4.10 GHz, 1.37 volts MADMAX22
Q745A567 = 4.05 GHz, 1.2720 vix
Q748A115 = 4.05 GHz, 1.4400 volts Carpenter]
Q806A026 = 4.00 GHz, 1.3125 volts mothow
Q805A249 = 3.80 GHz, 1.2720 volts tetemagique
Q808A169 = 3.00 GHz, 1.1000 volts kpo6969
Un-Official Listed CPU's by highest OC/lowest Vcore**
No Stresstests provided i.e. word of mouth (but it's never too late)
Q746A488 = 4.50 GHz, 1.4685 volts c230K
Q746A519 = 4.30 GHz, 1.3900 volts NCspecV81
Q751A447 = 4.20 GHz, 1.3930 volts Celoth
Q743A748 = 4.13 GHz, 1.3375 volts iewgnem
Q743A748 = 4.05 GHz, 1.3500 volts Ledge 68
Q746A377 = 4.00 GHz, 1.3000 volts mct75
Q744A698 = 4.00 Ghz, 1.3000 volts viceroy
Q740A525 = 4.00 GHz, 1.3000 volts Oblivion77
Q746A366 = 4.00 GHz, 1.3700 volts Rolandoo
Q746A483 = 3.78 GHz, 1.3000 volts
Q746A489 = 3.60 Ghz, 1.1850 volts lenzo
Q746A519 = 3.60 GHz, 1.1250 volts Jarrsten
1 - 20 of 227 Posts
Joined
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20,034 Posts
Quote:
4.0GHz at 1.32v is better then most. I've seen on average 3.8GHz with 1.35v.
So far from the posts I've seen here on OCN 4.0GHz very likely. Some have reached up to 4.3GHz.
Originally Posted by Oblivion77  My batch: Q740A525T I don't get as lucky as some people, 1.3V 4.0ghz. Maybe my RAM is holding me back. |
So far from the posts I've seen here on OCN 4.0GHz very likely. Some have reached up to 4.3GHz.
Joined
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1,894 Posts
I am just curious, what is your guys' NB Voltages? Is it good to raise these when you overclock?
Joined
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1,753 Posts
Quote:
If Intel is anything like my AMD system, it definitely won't hurt to try. Some like it, some don't. (I'm totally new to Intel)
Originally Posted by Oblivion77 I am just curious, what is your guys' NB Voltages? Is it good to raise these when you overclock? |
Quote:
Newegg
Quote:
Yeah when getting a high FSB it's a must. to make 500fsb stable I need 1.7v on the NB.
Originally Posted by kaxx Where's you get your CPU from NC?? |
Quote:
Originally Posted by Oblivion77 I am just curious, what is your guys' NB Voltages? Is it good to raise these when you overclock? |
Joined
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1,894 Posts
Hmm maybe ill try upping my NB voltage, it is at 1.37V right now. What kind of temps can the NB take?
Joined
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543 Posts
Quote:
batch # Q740A523
$189.99 from MicroCenter.
Found someone with this batch, and its slightly less friendly (even thought hey all overclock great from what i've read)
Just for the sake of keeping a batch list, this is one of them. Unfortunately i had to RMA my board, and i wont be overclocking untill next week. But i think this topic should be kept going. I also have lots of message boards bookmarked where batch numbers and speeds are thrown around. So i'll post up what i've found.
Originally Posted by kaxx Hey guys, if you want to post your batch numbers here, I'll try to keep them in post #1 for quick reference. We'll see how the batches hold up to the OC's. |
$189.99 from MicroCenter.
Found someone with this batch, and its slightly less friendly (even thought hey all overclock great from what i've read)
Just for the sake of keeping a batch list, this is one of them. Unfortunately i had to RMA my board, and i wont be overclocking untill next week. But i think this topic should be kept going. I also have lots of message boards bookmarked where batch numbers and speeds are thrown around. So i'll post up what i've found.
Q748A115
4.0ghz | 1.34v | 8 x 500 | 24/7
4.2ghz | 1.43v | 9 x 467 | Prime, OCCT, SuperPi 32M, 3dmark Stable
4.5ghz | 1.44v | 9 x 500 | CPUZ
4.0ghz | 1.34v | 8 x 500 | 24/7
4.2ghz | 1.43v | 9 x 467 | Prime, OCCT, SuperPi 32M, 3dmark Stable
4.5ghz | 1.44v | 9 x 500 | CPUZ
Joined
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1,753 Posts
Quote:
Nice Carpenter, Any chance you ever got that 4.5GHz stable??
Originally Posted by carpenter Q748A115 4.0ghz | 1.34v | 8 x 500 | 24/7 4.2ghz | 1.43v | 9 x 467 | Prime, OCCT, SuperPi 32M, 3dmark Stable 4.5ghz | 1.44v | 9 x 500 | CPUZ |
I love my batch
Q743A748 dated 01/04/08
Currently running stable at 4.13GHz on 1.3375V/1.296V BIOS/CPUZ
Could run 4.3GHz on 1.40V/1.36-1.38V BIOS/CPUZ
Higher than that and heat becomes a problem...
otherwise I define stable as 1 hour Orthos CPU stress.
When you guys post voltages, do you use CPUZ after Vdrop or just BIOS settings?
Q743A748 dated 01/04/08
Currently running stable at 4.13GHz on 1.3375V/1.296V BIOS/CPUZ
Could run 4.3GHz on 1.40V/1.36-1.38V BIOS/CPUZ
Higher than that and heat becomes a problem...
otherwise I define stable as 1 hour Orthos CPU stress.
When you guys post voltages, do you use CPUZ after Vdrop or just BIOS settings?
Joined
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1,753 Posts
Quote:
Defintitely use the BIOS setting. More accurate than any software program I've ever seen. Also, try for a longer stresstest. I've had my PC's do P95 for 6 hours stable, but the seventh hour it would crash.......
Thanks for the info!!
Originally Posted by iewgnem I love my batch Q743A748 dated 01/04/08 Currently running stable at 4.13GHz on 1.3375V/1.296V BIOS/CPUZ Could run 4.3GHz on 1.40V/1.36-1.38V BIOS/CPUZ Higher than that and heat becomes a problem... otherwise I define stable as 1 hour Orthos CPU stress. When you guys post voltages, do you use CPUZ after Vdrop or just BIOS settings? |
Thanks for the info!!
Quote:
Nope. Unfortunately, I think 4.5ghz would need well over 1.45vcore with this chip. I might go there in a couple weeks if it seems these chips can take it, but I've read about too many guys getting degradation over 1.4v - meaning within like a week at high voltage they start to lose stability.
I'm not saying it's true yet, but like I said I want to wait and see how it all shakes out. If in a month tons of these chips get fried over 1.4v, I'll keep it at a cozy 4ghz 1.35vcore and close the case.
Originally Posted by kaxx Nice Carpenter, Any chance you ever got that 4.5GHz stable?? |
I'm not saying it's true yet, but like I said I want to wait and see how it all shakes out. If in a month tons of these chips get fried over 1.4v, I'll keep it at a cozy 4ghz 1.35vcore and close the case.
1 - 20 of 227 Posts
