I5 3570 not only running at 1.6ghz even under load.

[Nutty007]

Hi, i have a I5 3570 and it is only running at 1.6ghz i have disabled Intel speed step and am running prime 95 (http://i.imgur.com/qPuUU0l.png) it appears the multiplier is stuck at x16? further more even thow it is non k edition and i have a MSI B75A-G43 board( non OC able) it lets me edit the mulitiplyer, so i changed it from auto to 34 (3.4 ghz right???) but no it remains at 1.6??

This is a new CPU installed yesterday.

Thanks

 

[logainofhades]

What are your temps? Check and make sure heatsink is properly installed. Sounds like a thermal throttle issue.

 

[getochkn]

What BIOS do you have on your MB?

http://www.msi.com/product/mb/B75A-G43.html#/?div=CPUSupport

They didn't add 3570 support until A2 bios, so if you're on A0 or A1, that would explain it. It can't recongize the CPU microcode properly to know how to run the chip. They added 3570K support in A1, but you need A2 for the non-version


EDIT. If you click on the mainboard tab in CPUz, it should show the BIOS revision.

 

[getochkn]

What are your temps? Check and make sure heatsink is properly installed. Sounds like a thermal throttle issue.

If you had looked at the picture they posted, the temps are bellow 40c at full load, doesn't seem hot to me.

 

[logainofhades]

I am at work so the pic is blocked.

 

[BSim500]

Hi, i have a I5 3570 and it is only running at 1.6ghz i have disabled Intel speed step and am running prime 95 (http://i.imgur.com/qPuUU0l.png) it appears the multiplier is stuck at x16?

Try enabling Speedstep, then go into Windows Power Options and make sure it's on "Balanced" (1.6GHz idle / 3.4GHz load) and not "Power Saver" (forces 1.6GHz all the time). Being a non "K" chip shouldn't make any difference, likewise Speedstep on its own doesn't cripple chips like that under load.

PS: Despite being a non "K" chip, you can actually run it up to 4.0GHz with Turbo Boost.

 

[Nutty007]

i am on high performance power plan, i am on bios 10.9 ( the latest i think). could it just be a dud ? where will turbo boost be in my bios i cant find it?

Thanks

 

[getochkn]

Go the CPUZ, go to the mainboard tab and look at the bio revision info, see if you see A0, A1, A2 in there somewhere?

What CPU were you coming from and how old is the MB and have you ever updated the BIOS, etc?

 

[Nutty007]

Hi, i was coming from a G620, the mobo is almost 1 year old, i have updated the bios recently.
This is a screen print(http://i.imgur.com/YBD7qG8.jpg) showing the motherboard version ( cpuz) and msi's website showing the latest bios.
note at the botom it shows in 10.8 something to do with ivey support?

Thanks

EDIT: also i reset mobo to defaults and nothing changed.

 

[BSim500]

i am on high performance power plan, i am on bios 10.9 ( the latest i think). could it just be a dud ?

Strange. 1600Mhz is the idle power-saving state. OK. Try this (just in case "high performance" has been altered by custom settings in the past):-

1. Go into Control Panel -> Power Options
2. Click on "Change plan settings"
3. Click "change advanced power settings"
4. Scroll down and in "Processor power management", make sure "Maximum processor state" is definitely set to "100%"
5. Click OK.

If it's still locked at 1.6GHz even with Speedstep off / or set to balanced or high-perf, then if possible, all I can suggest is can you try it on a different board (or try a different CPU on your board)?

PS: Did Speedstep work on your old Pentium G620 (ie, did it change in frequency from idle -> load & back again), when set to "balanced" in Windows?

PPS: Unless Turbo Boost only shows up on "Z" motherboards, it should be somewhere in your BIOS though you may not get 4GHz on a "B" board.

 

[Nutty007]

It is set to minimum and maximum of 100% ( yet is only at 0.8v?? ( picture in post 1))

i do not have a different motherboard to test nor a cpu.

Is there anything elese i can try? ( i could try live boot ubuntu to see if that makes a difference?)

i have no idea if it worked with my old cpu but i think that it was always at 2.6ghz)
Thanks

going for tea now will answer anything you lave in 30 mins

 

[BSim500]

i do not have a different motherboard to test nor a cpu.

Is there anything elese i can try? ( i could try live boot ubuntu to see if that makes a difference?)

i have no idea if it worked with my old cpu but i think that it was always at 2.6ghz)

Your old chip would be at a permanent 2.6GHz due to the "100% minimum state" on "High Performance" preset, I was just wondering if you had previously tested it on "Balanced" to make sure the motherboard's Speedstep function works?

You could send it back for a replacement, but it's a rather odd fault for the CPU to have because it's ultimately the motherboard that feeds it the voltage & controls the speedstep frequency according to load.

One last shot before you return it - you may have a "BD PROCHOT" problem. This is a signal that the motherboard sends to the CPU telling it to throttle because it senses overheating. If your motherboard's sensor is faulty, it may be unnecessarily permanently throttling to 1.6GHz. Read below thread (especially post #8 down) for more details including a fix using "Throttlestop" software for a guy with an identical problem:-
http://hardforum.com/showthread.php?p=1039887073

Failing that, it's definitely worth testing a "Speedstep enabled" live-boot Linux distro before sending it back to make sure it works (or even reinstalling Windows), but unfortunately I have no experience with Linux. Personally, I'd try "Throttlestop - untick BD PROCHOT" thing first to rule out a faulty CPU.

 

[Nutty007]

THANK YOU.
After i un-ticked BD PROCHOT, it goses to 3.4ghz. Dose this man i have a dodgy motherboard? should i get it replaced is there anything elese i can do?

 

[BSim500]

THANK YOU.
After i un-ticked BD PROCHOT, it goses to 3.4ghz. Dose this man i have a dodgy motherboard? should i get it replaced is there anything elese i can do?

Yes, it does mean your motherboard has a dodgy temp sensor and it's sending "false alarms", but it's not exactly a "killer" issue as long as you have decent cooling. Your 3570 CPU's over-temperature protection should still work fine (it's internal to the CPU and doesn't rely on an external sensor). Personally, though I would change the power plan from High performance to Balanced and enable Speedstep - you'll still get exactly the same 3.4GHz performance under load, but it'll run much cooler when idle.

Here's a better full guide to Throttlestop:-
http://forum.notebookreview.com/hardware-components-aftermarket-upgrades/531329-throttlestop-guide.html

You may need to add it to your startup folder to cancel the false-alarms every time windows starts.

And if you did change board, try and get a "Z" board as it'll allow better overclocking & voltage override control (you could hit 4.0GHz 4C loaded / 4.1GHz 3C loaded / 4.2GHz 1-2C loaded) with the same CPU with Turbo Boost + 400MHz limited overclock on Ivy Bridge 3570 chips. With Haswell coming, prices of Ivy boards might drop even further.

I have exactly the same 3570 non-k CPU on an Asus P8Z77-M and it runs fine at 4GHz all-cores loaded. In fact, it has enough "headroom" that I've even managed to "undervolt" it by 0.1v on top of the OC (idle voltage @ 1.6GHz is now 0.696v / load at 4GHz is now 0.996v). It doesn't even hit 1.0v fully loaded OC'd to 4GHz. Ridiculously cool & quiet with effective 46w power consumption! Ignore the "if it ain't a "k" chip it's rubbish" talk by some - it's a great chip for an ultra-silent gaming rig.

 

[Nutty007]

Thanks, i will try to get it replaced ( its from amazon and they are normily good if i can get a refund i will get a z77 board but for the moment this will do


Thanks all