1333 vs 1600 Overclocking

[shinku443]

Hello. I have 4 x 4GB of DDR3, however I'm using 2 hyperx @ 1600, and then my 2nd channel has ADATA at 1600 and an older ADATA model thats only 1333....I have a phenom 1075t which can only run memory at 1333. I know RAM will downclock to the lowest frequency but I want to know will this affect my overclock at all? Will my overclock potential be lower because they're all down to 1333 and they're not the same brand/model??? Thank you!

 

[plasmastorm]

It shouldn't effect the CPU overclock but it will effect the RAM overclock.
When overclocking ram, ideally you want as few sticks as possible and all of them to be the same make/model/speed/timings etc.

Personally I wouldn't even bother oc'ing the ram till every stick is the same. Not to say it can't be done but you will be very much limited by the odd one in the bunch.

I myself have 4x4gb stick but they are all the same. They came from 2x8gb kits but they are the same timings and speed which is the most crucial thing.

 

[Tradesman1]

What's the DRAM running at now, can see in CPU-Z in the Memory tab - what freq and timings?

 

[shinku443]

What's the DRAM running at now, can see in CPU-Z in the Memory tab - what freq and timings?

669 mhz ( so 1338, I did a LITTLE bit of OC..... was messing around with timings but wasnt sure what to do)

8-9-8-24 right now with CR at 1T. I think I put it to like 1.55v

 

[Tradesman1]

That looks good and you have tight timings, the 1333 (1338) is prob about the best you'll do w/ your CPU and 1333/8 w/1T is basically the same as stock 1600/9 2T. YOu should still be able to OC the CPU (might need to add a bit of voltage to the CPU/NB Voltage 😉

 

[shinku443]

That looks good and you have tight timings, the 1333 (1338) is prob about the best you'll do w/ your CPU and 1333/8 w/1T is basically the same as stock 1600/9 2T. YOu should still be able to OC the CPU (might need to add a bit of voltage to the CPU/NB Voltage 😉

Yeah, Well I've OCed it a bit....I can get up to 3.8 on 1.475v stable with around 40-41 Celsius under full load....but I feel like I can go more cause I see people get 4.0ghz+ on lower voltage....I just dont know how to manage the HT link freq, and NB freq, and the NB voltage... I know ~2000mhz is what I want for them but my motherboard is kinda funky in the bios for it..... I can't change or see the multiplier for the HTT or NB haha. (Gigabyte 990fxa-ud3 rev 4.0 motherboard)

 

[Tradesman1]

What CPU?

 

[shinku443]

What CPU?

mentioned in original post, but AMD phenom ii x6 1075t (LOCKED multiplier)