What controls Turbo Core in Xeons?

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topmysteries5

Member
Jan 31, 2019
152
12
51
HI, guys I have found out something very interesting,
I'm successfully running this turbo mode on dual E5 2686v3 on Asus Z10PE-D16 WS (you can checkout my previous posts).
I don't have any Xeon v4's to test this, but i tested this on i7 6800K on stock settings in BIOS, It boosted to all core 3.8Ghz (CPU multiplier/turbo multipler all were on auto, i only had to adjust vcore).
i7 6800k boosts 3.8Ghz for 2 cores and 3.5Ghz for 6 cores on stock settings, no overclocking at all. Then i set turbo multiplier to 42 in "Advanced Frequency Settings", CPU multiplier was still auto. It boosted to 4.2Ghz all core. You can see in screenshot that fused multiplier limit shows x80 in HWiNFO64.
It seems unlocking turbo in v4 xeons is possible.


IMG_20190619_235058.jpg
 
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handlez

Junior Member
Jun 20, 2019
7
1
16
Hello, could you test 8895V3? Can you give me a 4-way main board efi? my CPU ID 0x306f4
Confirmation of exploit in E7 Haswell-EX processor series is reported...
E7-8890v3 (CPUID = 0x306f2) is shown
System owner asked for special CPUID = 0x306f3 build with testing now in process



 

topmysteries5

Member
Jan 31, 2019
152
12
51
=


Hello ~ could you test 8895V3? The CPU ID 0306 f4
You can try 4-way efi, but it will seriously damage your motherboard and cpus. (not worth time and money)
This mod also doubles the cpu TDP. I have dual E5 2686v3 (120W TDP), total power consumption of CPU only load is 530 watts on full load. I'm using Corsair AX1200i PSU.
With your 4 CPU system 8895v3 (175W TDP), it will consume around 1100 watts. 8Pin EPS connector are not made to sustain stress of more than 220 watts each. You'll also have to cool down VRM's with active cooling and air cooler isn't going to cool down your CPUs either when this much heat is generated in closed case even when AC is on.
 

pnerd

Junior Member
Jun 20, 2019
4
1
41
HI, guys I have found out something very interesting,
I'm successfully running this turbo mode on dual E5 2686v3 on Asus Z10PE-D16 WS (you can checkout my previous posts).
I don't have any Xeon v4's to test this, but i tested this on i7 6800K on stock settings in BIOS, It boosted to all core 3.8Ghz (CPU multiplier/turbo multipler all were on auto, i only had to adjust vcore).
i7 6800k boosts 3.8Ghz for 2 cores and 3.5Ghz for 6 cores on stock settings, no overclocking at all. Then i set turbo multiplier to 42 in "Advanced Frequency Settings", CPU multiplier was still auto. It boosted to 4.2Ghz all core. You can see in screenshot that fused multiplier limit shows x80 in HWiNFO64.
It seems unlocking turbo in v4 xeons is possible.


View attachment 7537
Very encouraging! I have a dual E5-2695 v4 QK3E QS in a Supermicro X10DAL board I can volunteer for testing. Would be amazing to join the turbo club.
 
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pnerd

Junior Member
Jun 20, 2019
4
1
41
PM me, so we can start
I'm embarrassed to say that I just started this account and apparently don't have rights to pm. Not sure how to gain pm privileges. Let me know what I should do. I'm running the latest stock BIOS 3.1 from Supermicro. I am wading through the 107 pages of this thread now to learn more. I'm a developer but am new to BIOS and EFI hacking. Happy to try almost anything since I believe there's a foolproof way to revert BIOS in Supermicro boards. (I hope.)
 

Markfw

CPU Moderator, VC&G Moderator, Elite Member
Super Moderator
May 16, 2002
18,345
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I'm embarrassed to say that I just started this account and apparently don't have rights to pm. Not sure how to gain pm privileges. Let me know what I should do. I'm running the latest stock BIOS 3.1 from Supermicro. I am wading through the 107 pages of this thread now to learn more. I'm a developer but am new to BIOS and EFI hacking. Happy to try almost anything since I believe there's a foolproof way to revert BIOS in Supermicro boards. (I hope.)
Its after a certain number of posts, it happens automatically. I am not sure of the number of posts, 25 rings a bell, not sure. Find some other interesting threads and reply (no neffing)
 

DarthPeanut

Junior Member
Jun 18, 2019
7
0
6
Received a 2697v3 today so hopefully I understand the process. Curious to see what I can do for all core and also what kind of memory speed/ timings I can get after that.
 

topmysteries5

Member
Jan 31, 2019
152
12
51
I have scanned through all your posts in this thread and there's references to a "guide" but I have not been able to find it. Pointer pretty please?
Hi,
What is maximum single core turbo of your E5-2695 v4 QK3E QS ?
I can only find online that it has 18C @ 2.1Ghz base clock speed.
Can you flash modded BIOS on your Supermicro motherboard? I will provide you modded BIOS file, but you must know how to revert back to stock BIOS if your rig doesn't boot after removing u-codes..
 

topmysteries5

Member
Jan 31, 2019
152
12
51
Received a 2697v3 today so hopefully I understand the process. Curious to see what I can do for all core and also what kind of memory speed/ timings I can get after that.
What motherboard you have ?
With 2697v3, you'll get x34 on all 14 cores, which is 3.57Ghz @ 105 bclk. You can expect around 2400CB in cinebench R15. Memory speed will be limited to 2133Mhz only and you can reduce its timing to C14 / C13 or lower (lower timings at 2133 will give you slight more MB/s in AIDA64 memory test only)
 

pnerd

Junior Member
Jun 20, 2019
4
1
41
Hi,
What is maximum single core turbo of your E5-2695 v4 QK3E QS ?
I can only find online that it has 18C @ 2.1Ghz base clock speed.
Can you flash modded BIOS on your Supermicro motherboard? I will provide you modded BIOS file, but you must know how to revert back to stock BIOS if your rig doesn't boot after removing u-codes..
The single core turbo is 3.3GHz. Please see screencap. I have flashed stock BIOS using FreeDOS thumbdrive without trouble in the past. I will double check BIOS recovery before I pull the trigger.
HWiNFO64.jpg
 
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topmysteries5

Member
Jan 31, 2019
152
12
51
I'm embarrassed to say that I just started this account and apparently don't have rights to pm. Not sure how to gain pm privileges. Let me know what I should do. I'm running the latest stock BIOS 3.1 from Supermicro. I am wading through the 107 pages of this thread now to learn more. I'm a developer but am new to BIOS and EFI hacking. Happy to try almost anything since I believe there's a foolproof way to revert BIOS in Supermicro boards. (I hope.)
You may have to check your privacy setting.
 

handlez

Junior Member
Jun 20, 2019
7
1
16
You can try 4-way efi, but it will seriously damage your motherboard and cpus. (not worth time and money)
This mod also doubles the cpu TDP. I have dual E5 2686v3 (120W TDP), total power consumption of CPU only load is 530 watts on full load. I'm using Corsair AX1200i PSU.
With your 4 CPU system 8895v3 (175W TDP), it will consume around 1100 watts. 8Pin EPS connector are not made to sustain stress of more than 220 watts each. You'll also have to cool down VRM's with active cooling and air cooler isn't going to cool down your CPUs either when this much heat is generated in closed case even when AC is on.

Can you provide the efi file of 4 cpus? I want to have a try ~ thanks
 

handlez

Junior Member
Jun 20, 2019
7
1
16
You can try 4-way efi, but it will seriously damage your motherboard and cpus. (not worth time and money)
This mod also doubles the cpu TDP. I have dual E5 2686v3 (120W TDP), total power consumption of CPU only load is 530 watts on full load. I'm using Corsair AX1200i PSU.
With your 4 CPU system 8895v3 (175W TDP), it will consume around 1100 watts. 8Pin EPS connector are not made to sustain stress of more than 220 watts each. You'll also have to cool down VRM's with active cooling and air cooler isn't going to cool down your CPUs either when this much heat is generated in closed case even when AC is on.

Can you provide an efi for me to try? My computer is water-cooled system
 

handlez

Junior Member
Jun 20, 2019
7
1
16
You can try 4-way efi, but it will seriously damage your motherboard and cpus. (not worth time and money)
This mod also doubles the cpu TDP. I have dual E5 2686v3 (120W TDP), total power consumption of CPU only load is 530 watts on full load. I'm using Corsair AX1200i PSU.
With your 4 CPU system 8895v3 (175W TDP), it will consume around 1100 watts. 8Pin EPS connector are not made to sustain stress of more than 220 watts each. You'll also have to cool down VRM's with active cooling and air cooler isn't going to cool down your CPUs either when this much heat is generated in closed case even when AC is on.
Can you help to modify a 4-way efi file? thank you
 

topmysteries5

Member
Jan 31, 2019
152
12
51
Can you help to modify a 4-way efi file? thank you
You can anytime PM me for it. Posting every non-useful lines only fills pages on this thread, which further confuses visitors coming to this thread. You'll be using 4-way efi at your own risk.
 

handlez

Junior Member
Jun 20, 2019
7
1
16
You can anytime PM me for it. Posting every non-useful lines only fills pages on this thread, which further confuses visitors coming to this thread. You'll be using 4-way efi at your own risk.
Then how can I cooperate with you? Can I test an efi file? My English is not good~
 

DarthPeanut

Junior Member
Jun 18, 2019
7
0
6
What motherboard you have ?
With 2697v3, you'll get x34 on all 14 cores, which is 3.57Ghz @ 105 bclk. You can expect around 2400CB in cinebench R15. Memory speed will be limited to 2133Mhz only and you can reduce its timing to C14 / C13 or lower (lower timings at 2133 will give you slight more MB/s in AIDA64 memory test only)
I have an asus x99 deluxe that I plan to use for this.
 

impact_aut

Junior Member
Jun 25, 2019
10
0
6
@topmysteries5 Will try to get my posts, so i can PM u. But needs some time. What informations exactly do you need for an Bios mod? thx in advance.
Will Buy an Asus Rampage V and im not sure about the Cpu. will get an E5-2680v3 or E5-2690v3. Am i right that the 2690v3 will boost to 3,5ghz all core while the 2680v3 only go to 3,3ghz all core with the bios hack?
Maybe i can do it by my self, but i -redacted- myself if i brick it :S

Profanity is not allowed in the technical forums.

Daveybrat
AT Moderator
 
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topmysteries5

Member
Jan 31, 2019
152
12
51
@topmysteries5 Will try to get my posts, so i can PM u. But needs some time. What informations exactly do you need for an Bios mod? thx in advance.
Will Buy an Asus Rampage V and im not sure about the Cpu. will get an E5-2680v3 or E5-2690v3. Am i right that the 2690v3 will boost to 3,5ghz all core while the 2680v3 only go to 3,3ghz all core with the bios hack?
Maybe i can do it by my self, but i -redacted- myself if i brick it :S

Profanity is not allowed in the technical forums.

Daveybrat
AT Moderator
I would not recommend you to invest any money in new single cpu rig, right now only dual cpu rig is worth. If you already have X99 rig and want to boost, then its different matter. If getting good deal on used rampage V, then buy it. E5 2680v3 will boost to 3.3Ghz all core but only on low loads, on heavy load it will drop to 3.1ghz, with E5 2690v3 speed will drop to 3.2-3.3Ghz. You can get 5% more by bclk 105 but it may not be stable. These both are not worth this mod. Only cpus i would recommend you are E5 2686v3, E5 2699v3, E5 2696v3, E5 2698v3. E5 2696v3 is best among all, it can reach 4ghz.
 

Klancs

Junior Member
Dec 7, 2017
4
0
11
Hi all.

I have a Gigabyte x99 with an E5 2660v3 Es, which gives a score of 2964 pts in Cinebench r20.

I have the opportunity to buy an E5 2690v3 for € 280, is it worth this processor or invest something else and buy a new board and a 9900k i7?

Greetings.
 
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