Question 3200mhz ram works only 3000mhz

sonofspardas

Distinguished
Dec 13, 2013
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3
18,635
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Build new pc spec are
12400f
Asus b660m plus d4
Tridentz F4-3200C16D-16GTZR
nzxt h510 flow


Pc runs perfectly fine while using everything auto in bios dram configuration but as soon as I set xmp 1/2 system doesn't start and bios gets reset tried 3600mhz tried 3200mhz with 1.4v same problem but it's running fine at 3000mhz 1.35 and timing I used was 16-18-18-38 for everything as mentioned on ram box... What to do? Should I return the ram Or is it anything I am doing wrong?
 

Nighthawk117

Notable
Sep 27, 2021
880
237
890
51
Build new pc spec are
12400f
Asus b660m plus d4
Tridentz F4-3200C16D-16GTZR
nzxt h510 flow


Pc runs perfectly fine while using everything auto in bios dram configuration but as soon as I set xmp 1/2 system doesn't start and bios gets reset tried 3600mhz tried 3200mhz with 1.4v same problem but it's running fine at 3000mhz 1.35 and timing I used was 16-18-18-38 for everything as mentioned on ram box... What to do? Should I return the ram Or is it anything I am doing wrong?
I would advise against 1.4v unless you want trouble. If you can I would return the memory and get something else.
 
Build new pc spec are
12400f
Asus b660m plus d4
Tridentz F4-3200C16D-16GTZR
nzxt h510 flow


Pc runs perfectly fine while using everything auto in bios dram configuration but as soon as I set xmp 1/2 system doesn't start and bios gets reset tried 3600mhz tried 3200mhz with 1.4v same problem but it's running fine at 3000mhz 1.35 and timing I used was 16-18-18-38 for everything as mentioned on ram box... What to do? Should I return the ram Or is it anything I am doing wrong?
Bios level?
 

Vic 40

Titan
Ambassador
the memory QVL lists individual kits that are deemed compatible.
if they are not listed they have usually been determined to not work correctly with that particular board.
Just means that kits not in the list haven't been checked and it could go both ways, no motherboard manufacturer can test all existing kits.

@sonofspardas,

what bioss does the motherboard run? The latest has a better ram compatibility.

Version 1003 from 2021/12/30
TUF GAMING B660M-PLUS D4 BIOS 1003
"- Improve system performance and stability
- Improve DRAM compatibility"
 
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The 12400F's official support is for 3200Mhz DDR4 at 1.35v and and 4800Mhz DDR5 at 1.1v.
you have typo there, CPU ram support always adhere to jedec specs, which is 1.2v for DDR4 even at 3200MHz
1.35v+ is outside of cpu support, intel doesnt even offer paid warranty when enabling XMP profile (going outside of jedec specs)

anyway, not every RAM modules can handle 1.4v, mine cant handle it even if they are samsung b-die (F4-3200C14D-32GTZR), 1.35 works fine even at 3733MHz at CL16 while 1.4v produces ram errors no matter ram clock

as for OP getting ram running at 3200MHz, try first disable XMP profile and set ram clock to 3200MHz (without XMP)
see if ram will be stable or not, if not stable at 3200 JEDEC, return ram
 
Can you link where you get that from, because i have a hard time believing it.
https://www.intel.com/content/www/us/en/gaming/resources/overclock-ram.html
intel pretty much calls xmp "overclocking for beginners", you can also readup that touching voltages, timings and clocks is ram overclock

aanyway here are papers for 12th gen
https://cdrdv2.intel.com/v1/dl/getContent/655258 look for page 95
DDR4 3200 1.2V
DDR5 4800 1.1V
LPDDR5 type4 5200 1.1v

dont forget to look at page 101 where it shows you what latencies are supported :)


and if you go through intel warranty papers, youd see that warranty gets void if you touch voltages outside of public specs
 
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Vic 40

Titan
Ambassador
Have a quick glance and see nowhere where it says that 3200mhz ram should be able to run at 1.2V ..... which it won't. Think every 3200 kit will show it is rated for that speed with a voltage of 1.35V.
 

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