Hi I bought a new 7700k and when i turn on the XMP profile in bios my temperature goes up by 10c is this normal for my CPU ?. and when i turn it off it drops to 10c in temps. why does this cursing my cpu temps to go up when i turn on XMP ?. thank you for your help
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i7 7700k XMP on
- Thread starter michael27
- Start date
Soldato
Yes this is normal, when you enable XMP the memory voltage and auto ruling will scale certain settings to accommodate stability
Associate
+1 yep what he said
Associate
I'm going to try this with my 7700K when I get home and see what happens.
Currently have XMP on amd have manually set vcore so suspect I won't see a change but it'll be interesting to try nonetheless.
OcUK Staff
Depending on memory and board you can try tuning down Vccsa, vccio and cpu standby voltages. Try all at 1.00 first.
Associate
Are you suggesting this may lower temperatures. Please excuse my ignorance.
OcUK Staff
Yes.... Or I wrote it for fun!!!
Associate
OK smarty pants
On a serious note, thank you.
I'm running a Gigabyte Gaming 7 Z170. No options for Vccsa or cpu standby voltage on this board. Auto vccio sets it at 0.960 so I guess there is no reason to adjust?
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Soldato
OK smarty pants
On a serious note, thank you.
I'm running a Gigabyte Gaming 7 Z170. No options for Vccsa or cpu standby voltage on this board. Auto vccio sets it at 0.960 so I guess there is no reason to adjust?
Dont you just highlight the setting and key in the number on giga boards? Or there is no vccsa???
Associate
Found it.
I'm running a Gigabyte Gaming 7 Z170. Vccsa is referred to as system agent voltage in bios. No option for cpu standby voltage on this board. Auto vccio sets it at 0.960.
Test with XMP disabled amd auto settings (mem at 2166)
Vccsa amd vccio set to auto.
HWiNFO reports Vccsa as 1.068.
HWiNFO does not report vccio.
Max core temp under stress is 51.
Test with XMP enabled (3000). Vccio set 1v. System agent voltage (Vccsa) set 1v.
HWiNFO reports Vccsa at 1.008
Max core temp under stress 61.
Test setting memory timingwand voltage in advanced manual mode. Dram speed 3000mhz. Dram voltage cannot be set at 1.35. Options for 1.36 or 1.34. I set to 1.34.
Max core temp 61 under stress.
Max core temp without setting vccio and Vccsa manually, XMP turned on. System under stress was 64.
Best I can manage is a 3 degree reduction
I'm running a Gigabyte Gaming 7 Z170. Vccsa is referred to as system agent voltage in bios. No option for cpu standby voltage on this board. Auto vccio sets it at 0.960.
Test with XMP disabled amd auto settings (mem at 2166)
Vccsa amd vccio set to auto.
HWiNFO reports Vccsa as 1.068.
HWiNFO does not report vccio.
Max core temp under stress is 51.
Test with XMP enabled (3000). Vccio set 1v. System agent voltage (Vccsa) set 1v.
HWiNFO reports Vccsa at 1.008
Max core temp under stress 61.
Test setting memory timingwand voltage in advanced manual mode. Dram speed 3000mhz. Dram voltage cannot be set at 1.35. Options for 1.36 or 1.34. I set to 1.34.
Max core temp 61 under stress.
Max core temp without setting vccio and Vccsa manually, XMP turned on. System under stress was 64.
Best I can manage is a 3 degree reduction
Soldato
I really wouldn't be concerned. Just make sure it's stable.
hi mate let me know what happens am running my 7700k on a gigabyte z170x gaming 7 motherboard with the latest beta bios installed. i noticed that changing the dram voltage effect the cpu temperature as well. thanks
Associate
Adjusting vccio and Vccsa made little difference.
What made the biggest difference? My mobo was auto Overclocking my cpu to 4.5ghz on all cores. With vcore manually set to 1.170. This would cause my cpu package temp to rise to 61 (custom wc loop).
I have now set cpu multiply to stock setting of 42. Slowly lowering vcore and stress testing. I'm at 1.08vcore so far amd package temp down to 56. Still not as low as with XMP off which was 51 will all cores at 4.5ghz.
Tried to boot with vcore at 1.0 and system hangs.
Is this progress! I have no idea. Every day is a learning day.
What made the biggest difference? My mobo was auto Overclocking my cpu to 4.5ghz on all cores. With vcore manually set to 1.170. This would cause my cpu package temp to rise to 61 (custom wc loop).
I have now set cpu multiply to stock setting of 42. Slowly lowering vcore and stress testing. I'm at 1.08vcore so far amd package temp down to 56. Still not as low as with XMP off which was 51 will all cores at 4.5ghz.
Tried to boot with vcore at 1.0 and system hangs.
Is this progress! I have no idea. Every day is a learning day.
Associate
It's stable. But want to reduce temps.
Decided to go back to x45 multiplier at 1.170vcore XMP enabled. Max package temp using aida64 stress test is 64. Max package temp in x264 is 61.
Vccsa at 1.0v. Vccio at 1.0v.
Delid in a few weeks. Just for fun.
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i set everything on default in the bios only change XMP settings when i set it to XMP on my voltage reports cpu system agent is 1.2v and vccio at 1.2v dram voltage 1.36v at speed of 3000mhz. what type of memory do you have ?. thanks
what is your temp when you use prime95 28.10v ?. am getting 4.6 ghz at 1.260v vcore fully stable at 80c when xmp enabled
Associate
Corsair vengeance lpx XMP 3000. I changed vccio to 1.0v and Vccsa to 1.0v - it's stable.
Everything on default except cpu vcore, vccio and Vccsa. Cpu vcore at 1.70. It fails x264 stress test at 1.65 vcore. Dram voltage is 1.35 - can't set this in bios XMP profile does it automatically. It also allows all cores to hit max boost of 4.5ghz without manually adjusting cpu multiplier.
I don't use prime95. I see no need. X264 is more than adequate but you need to leave it running overnight. I can try it for you tomorrow though for the sake of comparison. Going to bed now.
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Associate
max core temp in Prime95 is 66 running blend test.
What cpu cooler are you using?
What cpu cooler are you using?
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Deleted member 66701
D
Deleted member 66701
Stop using prime95!
Or - why do you want to lower temp when you're only peaking at 64c???
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Associate
For fun.