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ASUS X99 Sabertooth Owners Thread - Page 153

post #1521 of 2071
Quote:
Originally Posted by mus1mus View Post

Failing XMP does not really point to a bad Memory kit nor sub par IMC. It's a known issue with X99.

Manual allows it on most people. Setting up the primary timings is more effective than XMP.
If you read my posts, you should note that I give the timings required to make the kit pass MemTest, so it's been tested with and without XMP being specified.
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post #1522 of 2071
Does that fail JEDEC as well?
post #1523 of 2071
I have not tried that. I may test it at JEDEC levels tonight after I update the BIOS. Note though that passing JEDEC does not explicitly tell me whether the RAM is capable of operating at its rated speed of 14-14-14-34-2T 3200MHz. If it fails JEDEC, I know for sure the RAM is bad, but if it passes, the RAM could still be "bad". I should test it at JEDEC if only to potentially eliminate the possibility the IMC is the culprit, though.
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post #1524 of 2071
Failing JEDEC, as you said, is a good way to prove RMA point.

The thing with X99 is that a lot of other things can give out bad results in RAM testing. Core, Cache, and VCCSA can all mess up RAM at it's rated speed. Even OS can. So tedious testing will need to be done to prove this.

That being said, I RMAed G.Skill kits due to not passing XMP Profiles before. You can attach a screenshot of the tests you have done for faster response. thumb.gif
post #1525 of 2071
Quote:
Originally Posted by mus1mus View Post

Failing JEDEC, as you said, is a good way to prove RMA point.

The thing with X99 is that a lot of other things can give out bad results in RAM testing. Core, Cache, and VCCSA can all mess up RAM at it's rated speed. Even OS can. So tedious testing will need to be done to prove this.

That being said, I RMAed G.Skill kits due to not passing XMP Profiles before. You can attach a screenshot of the tests you have done for faster response. thumb.gif
The testing I've done is why it would surprise me if the kit is actually good at rated specifications. No Vcore, Vcache, their respective frequencies, the BCLK or strap options, VCCSA, or VDRAM combination will let the RAM pass the rated specifications. You would think I could get tighter timings with no core or cache overclock, but I cannot. This implies the IMC is not at capacity even when the cache is overclocked (and I tested the overclocked cache with AIDA64 per your instructions pages ago for well over 4 hours without problems). So that leaves me with a bad RAM kit, or a CPU that works great for everything, including RAM frequency, but refuses to take tighter RAM timings regardless of frequency. Unfortunately I simply don't have another identical memory kit to test with, so I'll take advantage of the fact that I bought super expensive RAM and get it RMAed if I don't find things are stable with the 3301 BIOS. As far as I'm concerned, G.Skill is well within their right to test the RAM when I send it in and tell me it works and send it back.

Edit: I already emailed them about the issue and was given an RMA form, so I don't think I'll have issues getting an RMA completed.
Edited by stargate125645 - 7/28/16 at 4:52pm
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post #1526 of 2071
Sorry, which kit is that again?

Different IC's require different techniques. It's always good to go down the IC level to tune the RAM thumb.gif
post #1527 of 2071
Quote:
Originally Posted by mus1mus View Post

Sorry, which kit is that again?

Different IC's require different techniques. It's always good to go down the IC level to tune the RAM thumb.gif
http://www.gskill.com/en/product/f4-3200c14q-32gtz

I'm not sure what you mean by your last sentence, sorry.
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post #1528 of 2071
biggrin.gif

Some kits use Hynix, Elpida and Samsung.

Samsung has it's own way of tuning that is different from Hynix and Elpida.

That kit of yours has Samsung. If you have a previous kit installed prior to that, you will need to do a fresh CMOS to clear all timing-related stuff from the old kit after installing that one.
post #1529 of 2071
Shouldn't updating the BIOS and having everything set to Auto for timings take care of those issues when changing RAM? I have updated the BIOS twice now with this kit. I just updated the BIOS to 3301, and it took longer for MemTest to spit out errors (not sure if time it takes for errors to pop up is an indication of stability). But, I still did get errors around the 20% coverage mark. I tried increasing the voltage to 1.45V with everything else still at stock settings for the RAM and I got errors even faster... I guess my system doesn't like high RAM voltage, either? I will test JEDEC levels tonight, but it looks like I am RMAing the RAM kit regardless.
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post #1530 of 2071
Upgrading the BIOS will clear those.

Tip: buy another set. biggrin.gif
Those are Samsung B-Dies I believe. And they work pretty well with X99. Mustbof been a bad batch on your end.

Edit: aren't those rated for dual channel?
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