Does ThrottleStop supports old Haswell (4th Gen.) CPUs?

[Bad]

I recently found a Xeon E3-1270 v3 (~i7-4770) for cheap (~$14). From what I'm seeing, this old quad supports 2/3/4/4 turbo bins with a base clock of 3.5GHz which means the CPU can (theoretically) push up to 3.7GHz on all cores, unless I'm terribly mistaken.

My question is, if I pair this CPU with a cheap H81 or H87 motherboard, would I be able to force 3.7GHz on all cores via ThrottleStop or do I've to buy a Z series board to push clocks beyond 3.5GHz?

Additionally, would I be able to apply voltage offsets in ThrottleStop with SpeedStep so the CPU automatically underclock/undervolt when necessary? As far as I can tell, Intel moved the voltage regulator (FIVR) on to the core with Haswell so - in theory - a voltage offset should be possible on even an H81 chipset, correct?

Voltages aside, I can't seem to find any information on the turbo clocks. Sure, it's only a meager 200MHz overclock but there's no shame in trying to squeeze every ounce of performance out of your CPU, especially when it's 10 generations old!

Besides, my first CPU had a base clock of 233MHz so a 200MHz overclock is a lot from where I'm coming from!

In any case, thanks in advance.

 

[tabascosauz]

If you're referring to the ol' partially unlocked OC, it really was only a thing for certain Sandy Bridge and Ivy CPUs. I had an E3v2 (1230v2) on a Z77 board and by then the E3s were already distinguished from regular non-K i5/i7 in that they could not do the +4 bin partial OC trick. LGA1150 Haswell i7s were fully excluded, and so were E3v3s.

There are some obscure forum references to an early microcode bug that can be exploited on Haswell mobile i7s, but it requires the right microcode and I have only ever seen it referenced for mobile Haswell (possibly socketed MQ only).

E5 OC is possible but also done quite differently to the best of my knowledge due to them being very different 2011 CPUs (I don't remember if it was actually multiplier OC or just BCLK).

As to undervolting, I'm not sure about H81 but B85 and H87 should have no issues with voltage control. I used a H97 myself, had all the means to negative Vcore offset. I'm sure TS will be able to do the same.

 

[Lew Zealand]

First off: Throttlestop works great on Haswell, I use on a Dell Optiplex 9020 with an i7-4790 for undervolting.

If your Xeon works like the i7-4770 I've used and the multiple i7-4790s I currently have, you will get the all core turbo of 3.7 GHz without Throttlestop as long as you're not thermal throttling. I see the expected 3.8 all-core turbo often on my 4790, though not always which I assume is due to an AVX offset or similar which some loads invoke. Throttlestop seems to have no effect on this offset.

 

[Bad]

If you're referring to the ol' partially unlocked OC, it really was only a thing for certain Sandy Bridge and Ivy CPUs. I had an E3v2 (1230v2) on a Z77 board and by then the E3s were already distinguished from regular non-K i5/i7 in that they could not do the +4 bin partial OC trick. LGA1150 Haswell i7s were fully excluded, and so were E3v3s.

There are some obscure forum references to an early microcode bug that can be exploited on Haswell mobile i7s, but it requires the right microcode and I have only ever seen it referenced for mobile Haswell (possibly socketed MQ only).

E5 OC is possible but also done quite differently to the best of my knowledge due to them being very different 2011 CPUs (I don't remember if it was actually multiplier OC or just BCLK).

As to undervolting, I'm not sure about H81 but B85 and H87 should have no issues with voltage control. I used a H97 myself, had all the means to negative Vcore offset. I'm sure TS will be able to do the same.

You're absolutely right about Sandy/Ivy Bridge overclocking. I have a Xeon E3-1245 (~i7-2600) with a base clock of 3.3 GHz, but I can push it up to 3.8 GHz (all cores) on a Z77 without touching the BCLK. Intel allowed these locked CPUs to overclock up to 4 bins, on top of the one all-core turbo bin. So basically, you can run them at 3.3 + 0.1 + 0.4 = 3.8 GHz.

As for Haswell, it's much more locked down and you don't get the 'free' 4 bin overclock on locked CPUs, even on premium Z boards. However, the E3-1270 v3 in question does has 2 all core turbo bins on top of the 3.5GHz base clock (max turbo clock is 3.9GHz with up to 2 cores) and I was just wondering if there's a way to somehow force the CPU to peak at 3.7GHz, no matter what?

First off: Throttlestop works great on Haswell, I use on a Dell Optiplex 9020 with an i7-4790 for undervolting.

If your Xeon works like the i7-4770 I've used and the multiple i7-4790s I currently have, you will get the all core turbo of 3.7 GHz without Throttlestop as long as you're not thermal throttling. I see the expected 3.8 all-core turbo often on my 4790, though not always which I assume is due to an AVX offset or similar which some loads invoke. Throttlestop seems to have no effect on this offset.

That's good to hear though I was actually hoping to disable turbo and just push all cores to 3.7GHz with SpeedStep! It's just makes it a whole lot easier to apply an undervolt without any turbo shenanigans.

I'm just old school when it comes to overclocking and prefer my CPUs and GPUs 'naturally aspirated'!

But if that's what it takes to hit 3.7GHz on all cores then I'll leave the turbo on.

BTW, can you tell me how much undervolt you were able to apply on your i7-4790? I just need a baseline and the information on Haswell undervolting is sparse at best. It seems like no one cares about undervolting anymore.

Thanks in advance!

 

[:D:D]

I think you can run all core 39x but need to be using microcode version 7 or less to set it before upgrading microcode patch. Might be in boards BIOS already.

Intel Xeon E3 1270 v3 @ 3900.49 MHz - CPU-Z VALIDATOR

[ibu2m1] Validated Dump by Anonymous (2020-05-26 22:59:28) - MB: MSI H81M-P33 (MS-7817) - RAM: 8192 MB

valid.x86.fr

 

[Boombastik]

You need to mod bios to have microcode 7.
You need to mod windows 10 and above to not load the newest microcode automatically.
The latest haswell microcode is 28. You will lost a ton of fixes.
You don't need it. Buy a motherboard with whatever chip. If you can find a z87-z97 is better because you can run ram above 1600 mhz and haswell sweet spot is 2133-2400 mhz.

From that era best is to buy an msi board.

 

[AleXXX666]

First off: Throttlestop works great on Haswell, I use on a Dell Optiplex 9020 with an i7-4790 for undervolting.

If your Xeon works like the i7-4770 I've used and the multiple i7-4790s I currently have, you will get the all core turbo of 3.7 GHz without Throttlestop as long as you're not thermal throttling. I see the expected 3.8 all-core turbo often on my 4790, though not always which I assume is due to an AVX offset or similar which some loads invoke. Throttlestop seems to have no effect on this offset.

what point to UV this old 4 corer? it isn't laptop too.. UV mania....

You need to mod bios to have microcode 7.
You need to mod windows 10 and above to not load the newest microcode automatically.
The latest haswell microcode is 28. You will lost a ton of fixes.
You don't need it. Buy a motherboard with whatever chip. If you can find a z87-z97 is better because you can run ram above 1600 mhz and haswell sweet spot is 2133-2400 mhz.

From that era best is to buy an msi board.

isn't it better to get some China board with DDR4, 2133-2400 DDR4 RAM and Haswell Xeon with DDR4 support and quad-channel? Where you will get top-bin DDR3 that will clock DDR4 speeds?

 

[Boombastik]

2133 mhz is common in haswell platform. 2x8= 16 gb ram 2133 mhz in ebay is like 30 dollars for top end model. Top binned ddr3 is 3000 mhz.
I answer to this because the thread starter asked for a haswell cpu and how to unlock turbo on cores.

If it better to get a haswell xeon with board this is another question and personally i don't think that it is better from quality standpoint .

 

[AleXXX666]

2133 mhz is common in haswell platform. 2x8= 16 gb ram 2133 mhz in ebay is like 30 dollars for top end model. Top binned ddr3 is 3000 mhz.
I answer to this because the thread starter asked for a haswell cpu and how to unlock turbo on cores.

If it better to get a haswell xeon with board this is another question and personally i don't think that it is better from quality standpoint .

30 USD is close to DDR4 basic RAM kit price. DDR3 stuff is ancient now and paying more than 15$ for 16 GB is non-sense..

 

[Boombastik]

This is my last post in the thread. Thread starter asked another thing. The user don't asked what platform to buy.

 

[Bad]

You need to mod bios to have microcode 7.
You need to mod windows 10 and above to not load the newest microcode automatically.
The latest haswell microcode is 28. You will lost a ton of fixes.
You don't need it. Buy a motherboard with whatever chip. If you can find a z87-z97 is better because you can run ram above 1600 mhz and haswell sweet spot is 2133-2400 mhz.

From that era best is to buy an msi board.

That honestly sounds like a lot of hassle.

Frankly, I'd be happy with just 3.5GHz base clock. And if I can push things up to 3.7GHz, even better.

what point to UV this old 4 corer? it isn't laptop too.. UV mania....

Around here, temperatures are hovering around 47C/116F as we speak and all I've on my name at the moment is a wimpy, low-profile stock Intel cooler. So, every bit helps!

Besides, Intel - in its infinite wisdom - didn't see fit to bless us peasants with unlocked multipliers so I might as well just undervolt to eek the most out of the chip.

After all, I most certainly am not going to dump $50-60 on an unlocked Haswell i7. Would much rather add $10 and get a Ryzen 5 3600 for $65-70.

isn't it better to get some China board with DDR4, 2133-2400 DDR4 RAM and Haswell Xeon with DDR4 support and quad-channel? Where you will get top-bin DDR3 that will clock DDR4 speeds?

Poor VRMs, janky BIOSes, minimal PCB layers (these boards are notoriously quite 'creaky'), no quad-channel support (up to dual-channel due to fewer PCB layers), harvested chipsets, unpredictable CPU support, the list goes on.

That's just too much... excitement for this old man!

Besides, all Chinese X79/99 CPU/MOBO/RAM combos I've come across on AliExpress and elsewhere come with 1,600 MHz RAM sticks so I doubt they can handle faster RAMs, or even unbuffered, non-ECC ones.

Take what you will.

 

[Lew Zealand]

what point to UV this old 4 corer? it isn't laptop too.. UV mania....

Almost none. I initially UV'd before I could repaste it as it was running in the high 80s, now it's mostly because I can. Also good to stay current on how software works on different platforms.

 

[Toothless]

2133 mhz is common in haswell platform. 2x8= 16 gb ram 2133 mhz in ebay is like 30 dollars for top end model. Top binned ddr3 is 3000 mhz.
I answer to this because the thread starter asked for a haswell cpu and how to unlock turbo on cores.

If it better to get a haswell xeon with board this is another question and personally i don't think that it is better from quality standpoint .

Yeah and have 99% of things still not be able to reach those speeds. 1866 was more common and good luck getting 3000 stable for majority.

OP was asking about clock bins, not memory.

 

[AleXXX666]

Yeah and have 99% of things still not be able to reach those speeds. 1866 was more common and good luck getting 3000 stable for majority.

OP was asking about clock bins, not memory.

even 1866 was pretty "rare", 1600 all the way.

 

[unclewebb]

ThrottleStop was thoroughly tested on my Haswell laptop.

The Haswell mobile CPUs supported limited Turbo Overclocking similar to the 2nd and 3rd Gen CPUs.
Intel removed this useful feature from their Haswell desktop CPUs.

The 4700MQ allows +2 bins of overclocking, the 4800MQ +4 bins and the 4900MQ was +6 bins.

 

[Bad]

ThrottleStop was thoroughly tested on my Haswell laptop.

The Haswell mobile CPUs supported limited Turbo Overclocking similar to the 2nd and 3rd Gen CPUs.
Intel removed this useful feature from their Haswell desktop CPUs.

The 4700MQ allows +2 bins of overclocking, the 4800MQ +4 bins and the 4900MQ was +6 bins.

View attachment 348480

So, I won't even be able to push +2 bins on the 1270 v3?

That's unfortunate. I guess I'll have to keep the turbo enabled, then.

In any case, can you tell me about undervoltage? Will I be able to apply a voltage offset on an H81 or H87 board?

Big fan of your work, BTW! ThrottleStop is an absolute life saver for laptop users.

 

[unclewebb]

Will I be able to apply a voltage offset on an H81 or H87 board?

I have never owned one of these boards. Try setting an undervolt and see if it shows up in the FIVR monitoring table. The motherboard BIOS might have locked out CPU voltage control.

 

[PizzaUndervolt]

Pretty sure all MSI haswell boards are locked (throttlestop grayed out) regardless of the chipset (i think i tested h81 and h97), while other brands will let you; most vendors also had some undervolt setting in the bios (msi only on some boards, but not h81)