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Thread: New 9800X

  1. #1
    ROG Guru: Black Belt Array Hopper64 PC Specs
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    New 9800X

    Just updated to bios 1603 and wanted to try out the new CPUs. Ordered a 9800X from SL @ 4.9. I have a hefty Uncore offset for my current memory. I question if this is needed with the new chip. Any ideas?

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  2. #2
    Banned Array JustinThyme PC Specs
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    Is that by XMP?
    I dont worry much about the ram. Ive always got good sticks that can take 1.5V no worries and run them at the 1.35

    Hows that chip doing? Im in the middle of installing everything in a new case with a new 9940X. Ran it on a box top for a few days getting it all configured and got 4.6 very easy and ran a few rounds of real bench at 4.7 before shutting it down to get it in the case with some decent cooling.
    Last edited by JustinThyme; 12-20-2018 at 04:19 AM.

  3. #3
    ROG Guru: Black Belt Array Hopper64 PC Specs
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    I’m due to receive it in a few days. Doing the prep work. I’ll let you know. Thanks. Yes, that’s with XMP.

  4. #4
    Administrator Array Silent Scone@ASUS's Avatar
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    The uncore offset is dependant on the CPU, so you will have to tune to find a suitable value.

  5. #5
    ROG Guru: Black Belt Array Hopper64 PC Specs
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    That’s what I was thinking. The new chip may not require any offset. I’m going to leave it on auto with the Corsair memory in my signature and see what happens. Thanks.

  6. #6
    ROG Guru: Yellow Belt Array xarot PC Specs
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    I got my 9900X around a week ago, and it is so much worse than my old 7900X. Can't even run CB at 4.8 GHz at any voltage...4.7 CB is already 1.3 V territory. 4.5 GHz requires over 1.2 V and then the voltage curve ramps up. So much for overclocking that one. Hmm, I wonder if it would suddendly just die out of the blue.

    Old one in my 2nd PC was a delidded 7900X which could run up to 5050 MHz CB on cold water. But before that one I had a very bad 7900X too which I could replace with the better one (that didn't even run 4.5 GHz Prime on water).
    Gaming: i9-7980XE H2O - Rampage VI Extreme - 64 GB Corsair Dominator Platinum DDR4-3200 - Palit RTX2080TI H2O - Phanteks Enthoo Primo - Corsair AX1500i - Intel 750 1.2 TB - Samsung 960 PRO 1 TB
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  7. #7
    Banned Array JustinThyme PC Specs
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    4.8 on a 7900x was a golden chip. Less than 10% could obtain that. I paid for mine to get to 5GHz on water at 1.225 but it runs too hot.*
    Any particular reason you stayed with the same chip albeit a little more cache? Could be you lost the lottery. Ive not spent much time with my new 9940X, just in a box top with a 280 rad and it went to 4.6 on all cores with ease. Pretty much just set it to sync all cores, XMP and adaptive to 1.2V then unlimited power and LLC to 3. Ran realbemch on a loop for about an hour no issues. I’d be happy with 14 cores at 4.5 but think I’m going to get at least 4.7 if not 4.8. When I’m done with the refresh rebuild I’ll have 2x 480 rads, a 280 rad and a 360 rad for cooling. I don’t think I can do much better without going past that with a chiller or even more extreme. *

  8. #8
    ROG Guru: Yellow Belt Array xarot PC Specs
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    Definitely lost the lottery with the 9900X. Well, it's in my secondary PC with a simple 360mm loop, using the 7980XE direct-die cooled in my main PC.

    When setting up adaptive to 1.2 V, did you check it won't go over that? Since if the VID is higher on the cores you'd need to use negative offset with adaptive. I've used only manual voltage yet with this chip.
    Gaming: i9-7980XE H2O - Rampage VI Extreme - 64 GB Corsair Dominator Platinum DDR4-3200 - Palit RTX2080TI H2O - Phanteks Enthoo Primo - Corsair AX1500i - Intel 750 1.2 TB - Samsung 960 PRO 1 TB
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  9. #9
    Banned Array JustinThyme PC Specs
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    Laptop (Model)G752VY-DH72
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    Quote Originally Posted by xarot View Post
    Definitely lost the lottery with the 9900X. Well, it's in my secondary PC with a simple 360mm loop, using the 7980XE direct-die cooled in my main PC.

    When setting up adaptive to 1.2 V, did you check it won't go over that? Since if the VID is higher on the cores you'd need to use negative offset with adaptive. I've used only manual voltage yet with this chip.
    I’m set with the Vcore. 1.2 adaptive. I didn’t break out a fluke 87 and use the min max, I just take the word of AIDA 64 and HWinfo. Never use a negative offset nor left it with a manual overvolt to run at full bore 24x7. *I’ve not begun with it yet. Just a few hours getting things squared away and an hour or so of “burn in” to make sure there’s no infant mortality and I don’t have a dud before I get everything back together in the refresh build. *Nothing sucks worse than putting a hard tube build together and filling, leak testing, then hit the switch and find out you have to drain it and tear it down because something didn’t launch. I’ll be posting up more when the build is done and I’ve had some time tweaking. *Never been a per core tweaker. It’s all or none.*

  10. #10
    Administrator Array Silent Scone@ASUS's Avatar
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    Quote Originally Posted by xarot View Post
    I got my 9900X around a week ago, and it is so much worse than my old 7900X. Can't even run CB at 4.8 GHz at any voltage...4.7 CB is already 1.3 V territory. 4.5 GHz requires over 1.2 V and then the voltage curve ramps up. So much for overclocking that one. Hmm, I wonder if it would suddendly just die out of the blue.

    Old one in my 2nd PC was a delidded 7900X which could run up to 5050 MHz CB on cold water. But before that one I had a very bad 7900X too which I could replace with the better one (that didn't even run 4.5 GHz Prime on water).
    There's no efficiency changes with this refresh, so expect similar overclocking range between samples (temps permitting).

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