I5 760 high temps and underclock

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Dabgah

Commendable
Apr 30, 2017
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Looking for some help fixing my cpu temps. Recently i swapped a zotac gtx 760 2g blower fan and 2x4g ballistix 1600mhz ram into my ga-p55-usb3 i5 760 setup with stock cooler. I had some issues getting the parts to work with system shutting off with whatni assumed was high temps but my buddy was able to help me reapply paste to the cooler and gpu and we got it running.

So basically my cpu was running around 50 idle 90load temps before the new paste and parts. After its doing the same and ive had some fps issues in overwatch and world of warcraft and everyone is pointing to cpu temps. I remember reading the 760 had high stock temps a while ago but i recently saw someone here had issues with 1600mhz ram causing their 760 to run at 2.4 instead of 2.8. Ive tried open case and large house fan blowing in the case and neither moved the temps at all. The pc is quiet old as are the case fans which are working but not pushing high amounts of air out, front fan sucking in and top and back blowing out

My question is what is likely the cause of these high temps and under clock speed. The ram being 1600, stock cooler, or bad paste/cooler mount or some other issue. I have a hyper 212 evo 6.5inches in cart currently just trying to see if it will fit in my cm storm scout (first version)8 inches from outside measuring or if ill need something smaller.

Sorry for the wall of text, tried to give the most back info possible. Let me know if any further info is needed.

Thank you for any help on this topic.
 
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Wondering if the ballistix 1600mhz ram is the culprit for the downclock to 2.4 on the processor and perhaps even some of the heating issues, i dont think my buddy setup the ram in bios and just let it auto detect with xmp off. Im not super knowledge on bios and changing settings so i dont even know where to begin fixing the under clock
 
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According to Gigabyte's specifications page for your motherboard:

"4 x 1.5V DDR3 DIMM sockets supporting up to 16 GB of system memory (Note 1)
Dual channel memory architecture
Support for DDR3 2200/1333/1066/800 MHz memory modules
Support for non-ECC memory modules
Support for Extreme Memory Profile (XMP) memory modules"

I don't know why they don't mention DDR3 1600Mhz modules.

Over on their Qualified Vendor List for memory modules they do list 1866, 1600 and 2133mhz in addition to what's listed above. I suspect XMP mode needs to be selected in the BIOS for any memory above 1333Mhz to work. XMP stands for Extreme Memory Profile.

As I stated on the other thread you commented on, there was only 1 brand of memory that was 4GB specified in the QVL, but that may be that 4GB modules were rare when that motherboard first came out (2010 I think), and often motherboard makers simply didn't update the QVL over time.

Hopefully the XMP profile in the BIOS will fix things for you.
 
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Ok i will give it a shot, im pretty sure i tried xmp when i first installed and it gave me crashes, but that could be from the graphics card that i was also trying to get installed. Thank you for the reply.
 
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Thank you for such a quick reply.

If xmp doesnt solve the underclock, is there anything else i could do?

Also how much performance difference would i see going back to 2x2gb 1333 if it puts the cpu back at 2.8 for games like overwatch/world of warcraft, blizzard support based my problems on the temps/underclock more so than gfx card/ram.
 
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Is the i5 760 compatible with 1600mhz ram aswell?
someone mentioned if it was overclocking the ram then maybe it down clocked cpu to compensate for the overclock?
 
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You could try that, depending on the options in your BIOS. I have not ever changed the settings on my RAM, so someone else may have to advise you on that.

Also check to see if you have the latest version of the BIOS. Make sure you get the BIOS version for the correct "Revision Number" of your motherboard. It will be printed somewhere on the motherboard itself. Then go to Gigabyte's support page and click on the motherboard revision number you have (near the top of the support page) and look for the latest BIOS downloads. With a motherboard that old, it is likely there are no recent BIOS updates, but you will want the most recent. It is possible a BIOS update allowed for higher memory speeds.
 
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Everything looks normal on the cpuz settings except the QPI link is 2396.86, and 2398mhz is the max my cpu is running, how does the qpi effect the ram and is this what needs fixed?
 
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Per your SPD tab in cpu-z you are running the ram in xmp profile 1.3. Per the Memory tab the ram is running at 1333Mhz (666x2 since it is Double Data Rate which is what DDR stands for).

Are there any other xmp profiles in the BIOS you can select?

I don't know what the QPI link is.
 
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Per your SPD tab in cpu-z you are running the ram in xmp profile 1.3. Per the Memory tab the ram is running at 1333Mhz (666x2 since it is Double Data Rate which is what DDR stands for).

Are there any other xmp profiles in the BIOS you can select?

I don't know what the QPI link is.

Sorry for the double post. Tom's was acting up when I tried to post a response.
 
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Ill check the bios xmp profiles when i get home tonight, im still confused as to why the cpu is running at 2.4 based on whats shown it looks like the multiplier 9-25 would be 3.3 at max? Is there an option keeping it from going that high in bios aswell? I didnt change any settings on the cpu just auto for the ram i believe when we added new ram and gpu. I even have a picture of the speed/temps the day bwfore adding the new parts that shows 2.8 max along with the 90° temps.
 
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Was the CPU cooler checked that it was mounted properly? And was the BIOS reset as suggested earlier? If not then suggest doing so.

Higher frequency memory will (or should) be downclocked automatically by the system to match systems native frequency. In this case here, the "native" frequency is 1333 MHz, and the 1600 MHz memory will be downclocked to 1333 MHz. In the process the CPU frequency should NOT change. In this case here the i5 760 should still run at 2.8 GHz.

Resetting BIOS might help clear any incorrect/corrupted settings and restore the system back to "normal".
 
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I got your PM. Your motherboard will support 1600 MHz, however your CPU doesn't without some tweaking. I'm assuming the i5 760 works in similar manner to the i5 750, some quick searches support this. With an i5 750 you cannot run RAM any faster than 1333 without effectively OCing your computer. You could turn on XMP in BIOS, and many people recommend doing this, but this changes your BCLK which also affects your CPU speed. It might, as a side effect, end up turning off functionality such as Turbo, EIST, and sleep states. You can usually turn those back on but you have to specifically do it. It's best to NOT use XMP. If you want the RAM to run faster than 1333 MHz, then I would advise you to manually adjust the other settings to OC your CPU which will up the RAM along with is.

I've got a much longer explanation if you want to see it. But I don't think this helps with your temperature problem. Set all of the BIOS settings back to default, and work on getting your temperature controlled. If your temperature is causing problems at default settings, it'll be much harder to control once you start changing settings.

A good first place to start is making sure that cooler is really installed correctly and tightly. First time I installed a CM Hyper 212+, the 'legs' went through and I thought it was seated. But the chip was getting too hot. I checked again and realized that it wasn't tightened all the way down.
 
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I got the hyper 212 installed, and my temps are 20-25°c idle and 40-50°c load so that issue is fixed. Reseting bios to default didnt fix the under clock on cpu, however as soon as i put the 2x2g of 1333 ram in the cpu went back to 2.8 and is going to 3.3 even sometimes. The 4gb of ram however is 90% in use for games like overwatch so im not sure if this will even fix the lag issues or make it worse.

Now that temps are stable and ive seen it ramp to 3.3 what is the best solution for getting the 8g of ram and cpu above 2.4, how would i manual overclock and is that a good idea since all the parts are 8 years old?
 
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Ive read around a bit more and cant find much extra info on the p55 board or i5 760 and memory issues.

One gigabyte forum someone responded this to an old thread but i dont quiet understand it.

""For first generation i7/i5/i3.
The max RAM module u can use is 4GB (sixteen 256 M X 8 ) ,which is very rare in the market now , unless u buy the second hand module.
the speed (eg: 1600Mhz, 1333Mhz,...etc) is not really a issue here.
Pls be noticed that ,the latest 4GB DDR3 with DRAM Organization eight 512M x8 won't work with your pc. (so, 8GB with sixteen 512M x8 won't work either)""

What else can i do to get the current ram working without the processor being ran at 2.4 or if i buy 2x4gb of corsair xms3 ddr3 1333 would i have any issues?

Anymore help anyone can provide? My current 2x2g setup is maxing 95% while playing WoW and Overwatch
 
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Now that your temperature is under control - is your new problem that when you install the 1600 MHz RAM the CPU always runs at 2.4 GHz?

Your CPU has speedstep and turbo boost functionality that will allow the CPU speed to run anywhere from 1198.44 MHz (1.2 GHz) up to 3329 MHz (3.33 GHz.)
[Default bus speed is 133.16 MHz, with multipliers ranging from 9 to 25. That's from 9 x 133.16 = 1198.44 MHz, up to 25 * 133.16 = 3329 MHz]

With your 1600 RAM installed and BIOS settings at default, let your machine idle for 15 minutes and then take screenshots of CPU-Z (in particular the CPU, Memory, and SPD tabs).

Now load up your machine for 15 minutes and take the same CPU-Z screenshots.

Then share all the CPU-Z screenshots.
 
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