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ASUS X99 Sabertooth Owners Thread - Page 78

post #771 of 1987
Quote:
Originally Posted by stargate125645 View Post

I will look into the 1000W power supply.

Should I even bother trying to get RAM up to 3200MHz when overclocking if things are that finicky? I don't need to overclock the RAM, I just want to make sure what speed I buy in RAM can be achieved. So if I can get 3200 easily then I'd do it, but I won't try to make a 3200 kit do more; if I can get more I'll buy faster RAM to make the overclocking easier. I'm hoping to get a good achievable speed from you experienced Sabertooth users. So 3200MHz is usable without much issue?

3200 is easier than 3000. Probably as strong as 2666. And if you have a kit that can do 3200 at 32GB or 16GB, it'd be very easy to dial in.

And good thing about 3200 kits, the chances of getting better binned (pre-tested) sticks out of them is higher. I literally have tested 3 sets of 32GB (4x8GB) 3200 15-18-18-35 all doing their rated speed on manual tuning no problem. I got a little greedy and wanted 3200 CAS 14 and only then things got wonky. Only 4 sticks can do out of 12. But rated 3200 at 15-15-15-35-CR1 is not an issue.

You can always go down to 2666 anyways. Which is pretty good if you can get them to run at CAS12. thumb.gif
Quote:
Originally Posted by Nick-F View Post

I have found that 4.3 O/C seems to be the sweet spot for performance over voltages . 1.2 V for 4.3 O/C , I can get 4.5 stable but voltage is too high at 1.375

That is pretty high for 4.5GHz. Are you testing it with Prime or OCCT?

But you gotta know. This chips have efficiency curves varying from chip to chip.

Efficiency is best before the chip hits a Voltage wall for the next Multi. Say, 4.3 requires 0.06V from 4.2, 4.4 needs the same COre bump from 4.3, come 4.5 and the chip needs 0.1V to stabilize. That hitting the Voltage wall. And the chip cannot be efficient past that. Heat and Power Consumption takes a big hit that 4.4 is the way to go.

In my experience, you can even Prime at 4.4, given the example above, up to your willingness and the chip will stay happy. Past that is a steep uphill battle. I'd suggest you look for that sweet spot. thumb.gif
post #772 of 1987
I'm assuming if I'm not overclocking the RAM that I don't need to look at source of chips (i.e. Hynix or Samsung), right? And what 5930k CPU speed would I be looking at with a bclk and multiplier that gets me 3200 RAM? If I need to go higher I can.
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post #773 of 1987
Quote:
Originally Posted by stargate125645 View Post

I'm assuming if I'm not overclocking the RAM that I don't need to look at source of chips (i.e. Hynix or Samsung), right? And what 5930k CPU speed would I be looking at with a bclk and multiplier that gets me 3200 RAM? If I need to go higher I can.

No, you don't need to prior to buying them. But once they are on hand, you can look up the chip details in Aida 64 and base your tuning to the chip.

Samsung and Hynix require different approach when tuning. So yeah. But no OC involved, pretty doable without chip info and little tuning needed.

Core Frequency is dependent on your sample. I always start at 1.2Vcore and dial in the multi. Until the cooler allows it. 1.25V is doable with AIO cooler and good airflow. 7 chips all did 4.5 Realbench Video Encode for 2 hours at 1.25V. But since the PCs were meant for Video encoding and less maintenance, I dropped them to 4.3 1.2 for complete 24/7 reliability.


Sadly, this platform maxes out at 3200 for RAM. Select people can do past that and remain stable. So the approach is to get the lowest CAS latency for 3200. Trident Z 3200C14 has been showing very good results from most users.
Edited by mus1mus - 2/14/16 at 8:43am
post #774 of 1987
Quote:
Originally Posted by mus1mus View Post

Quote:
Originally Posted by stargate125645 View Post

I'm assuming if I'm not overclocking the RAM that I don't need to look at source of chips (i.e. Hynix or Samsung), right? And what 5930k CPU speed would I be looking at with a bclk and multiplier that gets me 3200 RAM? If I need to go higher I can.

No, you don't need to prior to buying them. But once they are on hand, you can look up the chip details in Aida 64 and base your tuning to the chip.

Samsung and Hynix require different approach when tuning. So yeah. But no OC involved, pretty doable without chip info and little tuning needed.

Core Frequency is dependent on your sample. I always start at 1.2Vcore and dial in the multi. Until the cooler allows it. 1.25V is doable with AIO cooler and good airflow. 7 chips all did 4.5 Realbench Video Encode for 2 hours at 1.25V. But since the PCs were meant for Video encoding and less maintenance, I dropped them to 4.3 1.2 for complete 24/7 reliability.


Sadly, this platform maxes out at 3200 for RAM. Select people can do past that and remain stable. So the approach is to get the lowest CAS latency for 3200. Trident Z 3200C14 has been showing very good results from most users.
Would it not be prudent to get 3333 RAM then to give me some head room if I push the bclk slightly past what gives me 3200 with the same multiplier? Or is 3200 pretty much max so I'd have to lower the RAM multiplier at that point?
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post #775 of 1987
Quote:
Originally Posted by stargate125645 View Post

Would it not be prudent to get 3333 RAM then to give me some head room if I push the bclk slightly past what gives me 3200 with the same multiplier? Or is 3200 pretty much max so I'd have to lower the RAM multiplier at that point?

Just get this.




picture courtesy of @Kimir:
http://www.overclock.net/t/1510388/haswell-e-overclock-leaderboard-owners-club/17050_50#post_24893474
post #776 of 1987
That RAM will go slightly higher than 3200 I take it?

Also, kudos for sourcing the photo.
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post #777 of 1987
Quote:
Originally Posted by stargate125645 View Post

That RAM will go slightly higher than 3200 I take it?

Also, kudos for sourcing the photo.

Some guys did. Difficult though.

But 3200 C14 64GB is sweeter. thumb.gif
post #778 of 1987
JPMboy & lilchronic have them and can do 3200 c13 with 1.4v, so do I with a little more than that.
lilchronic even did 3400c13 and 3600c13 with different strap/bclk (the later being more a bench setup than daily, being at 1.65v), but with a Gigabyte x99 SOC Champion with 4 dimms slot, which can help. I haven't tried myself as I have no interest in strap setup since it require to switch to static voltage and I'm a offset/adaptive kind of guy.
IMO, the 3200c14 (Trident Z or Ripjaws 5, the ripjaw being $20 cheaper) are the best kit to get for x99 right now if you want to go for 3200Mhz.
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post #779 of 1987
Quote:
Originally Posted by Kimir View Post

JPMboy & lilchronic have them and can do 3200 c13 with 1.4v, so do I with a little more than that.
lilchronic even did 3400c13 and 3600c13 with different strap/bclk (the later being more a bench setup than daily, being at 1.65v), but with a Gigabyte x99 SOC Champion with 4 dimms slot, which can help. I haven't tried myself as I have no interest in strap setup since it require to switch to static voltage and I'm a offset/adaptive kind of guy.
IMO, the 3200c14 (Trident Z or Ripjaws 5, the ripjaw being $20 cheaper) are the best kit to get for x99 right now if you want to go for 3200Mhz.

Thanks for the bump mate. +1
post #780 of 1987
Any one tried a 128GB kit with DDR4-2666 or higher yet?
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