790i Ultra NVIDIA chipset - Still rockin' in 2015 / 2016 / 2017.. will it ever die? - Page 76 - Overclock.net - An Overclocking Community

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790i Ultra NVIDIA chipset - Still rockin' in 2015 / 2016 / 2017.. will it ever die?

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post #751 of 921 (permalink) Old 01-29-2019, 01:22 PM
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I'm having no issue running a 4x4gb kit at 1600mhz on my 790i with a QX9650.
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post #752 of 921 (permalink) Old 01-29-2019, 01:35 PM - Thread Starter
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Quote: Originally Posted by Moparman View Post
I'm having no issue running a 4x4gb kit at 1600mhz on my 790i with a QX9650.
Just for continuity, can you please (re)post the specific make/model of the kit?

Thank you

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post #753 of 921 (permalink) Old 01-29-2019, 07:06 PM
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As I mentioned before a couple of pages back I am playing with the following memory with an EVGA mobo using P10 with a QX9650 in Windows XP 32bit:

4x 2.0V PVS34G2000LLKN 2GB sticks 2000MHz (one stick has a different label and uses an older PCB. I can provide PCB detail pics if anyone is interested)
2x 1.7V PVS34G2000LLKN 2GB sticks 2000MHz
2x 1.65V 997126S 4GB sticks 2800MHz (I had this laying around so I plan on playing with it but don't expect great results as it is much more modern and 4GB)
2x 1.65V 2gbh2x01e88824-165-h 2GB sticks 1600MHz (Came with my 790i mobo purchase)

I currently have a very minor overclock to 3.33GHz as I'm not really trying to push the CPU yet.

I've ran into the same issues that others have seen before for the most part like not being able to get 2000MHz memory with 4x PVS34G2000LLKN sticks.

Also as expected the black slots work better than the grey slots and the slots closer to the cpu work better than those further away for a matched pair if a given stick is know to be more problematic try putting it closer to the cpu.

The more modern Mushkin 2x4GB 1.65V kit rated for 2800MHz has been working much better than expected. However I haven't spent much time playing with timings on it yet as I only started playing with these sticks today.

The Mushkin set will do 2100MHz but will fail post after that when ran unlinked with a FSB of 1333 at 1.65V memory voltage and everything else not mentioned ran stock.

With the Mushkin set in the grey slots and a set of PVS34G2000LLKN (1.7V version) in the black slots with 1.7V set in the bios I am stable in 3d mark 06 @ 2000MHz with 12Gb populated. I haven't played with timings for this pairing.

I am using 32bit XP so none of this extra ram is being used so I might install 7 or 10 on another SSD to play around a bit more.

Attached is a text file of some of my benchmarking so far that I've been maintaining to see what I've tested and what is 3d mark stable.
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File Type: txt Benchmark Results.txt (3.1 KB, 6 views)
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post #754 of 921 (permalink) Old 01-29-2019, 09:45 PM
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Another update before bed.

I finished testing all the sticks I have for now to get a baseline on what to expect when I push the whole system.

I dug up two sets of 2x8Gb Corsair Vengeance LP CML16GX3M2A1600C10. 1600MHz 10-10-10-27 1.50V ver 3.28. These sticks have memory on both sides of the stick.

I only tested them at 1.525V as that is the lowest green voltage in the bios.

Each pair is stable in any slot at unlinked 1600MHz. Unfortunately post fails when 4x8Gb is loaded even at 1333MHz.

I also tried the Mushkin sticks with a set of the sticks mentioned in this post for a total of 24Gb which is stable in Windows XP 32bit at 1600MHz.

As I'm not able to use this much memory in XP 32 bit I'll load up 7 or 10 next for a quick diversion. If anyone would like something tested please let me know. After messing around with 24Gb I'll likely move back to the 1.7V pair or Mushkin sticks for XP which will be my primary focus.


Edit1: attached is the updated benchmark text file.


Edit2: 24Gb working in Windows 10. Attached vantage result and cpu-z screenshots.
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Last edited by BossBorot; 01-30-2019 at 09:02 AM.
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post #755 of 921 (permalink) Old 01-30-2019, 12:49 PM - Thread Starter
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^ Some awesome info there, thanks for sharing

Nice work!
If you actually got 2000Mhz stable with 4 DIMMs you might be the first lol



Amazing... this chipset is essentially eternal..... 24GB will last for years (from now).... quad cores are losing steam but I'd bet are still the majority & will have at least another 5 years before they become a Tandy 1000 . 4 cores would still make a great multimedia system, plex server, pfsense, home theater, streaming rig... good system for a kid..

Like @schuck6566 mentioned, the prices of the boards right now... EVGA/XFX boards $200+ .. what is going on?!? Wouldn't that be funny if it was because of this thread but sorta doubt it .. at least QX9650's are only $60 and X5470's are $30...

Just to repeat (for the audience), the XEON MOD (X5460/x5470) is a fun project... XEONs can O/C quite nicely if the multi is 9x-10x.. Just avoid any Xeon with a 1600Mhz bus the older 1333Mhz ones have the higher multi (and will easily do 1600Mhz bus and beyond).

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post #756 of 921 (permalink) Old 01-30-2019, 05:17 PM
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Unfortunately 4 DIMM 12GB 2000MHz blue screens when starting 3dmark vantage in Windows 10.

The screenshot above of 24Gb @ 1600MHz is the best I was able to do in Windows 10. The Mushkin sticks don't seem to hold out as well in Windows 10 vs XP where their total capacity was not usable.

Windows 10 also allows me to play with 2 and 3 way SLI with 780 Ti unlike XP where only 1 is usable.

As expected when two cards are loaded for SLI usable memory combos become even trickier. The patriot memory is the only combo that I can get working with 4 DIMMs.

3 way SLI reposts half way though vantage for me which is likely a PSU issue given that I am using a 1KW PSU from 2008.

I have a 1.2KW PSU that I could use and others that I could use for double PSU but I'm not interested in 3 way 780 TI SLI long term so I'm moving back to XP.

Windows 10 is installed an a second SSD so if anyone would like something tested I can go back quickly.

The next thing on my list is to get 8800 Ultra SLI working but one of the GPUs is DOA so its baking time at least it was only $30.

I plan on playing with 3 way 8800 Ultra SLI in Vista when/if I get three working cards but that might be awhile.


Edit: I tried baking twice both times at 385 for 10 mins.

The first time it took the system from displaying a black screen in XP to being able to run SLI and complete 3dmark 06 but 3d shows strange purple and red colors.

The second time instead of taking the GPU out of the oven and letting it rest for 30 mins I turned off the oven and left it partially open to allow it to come down to room temp slower. I waited 30 mins this time as well.

The second 8800 Ultra now lives and 06 completes with no artifacts.

My next plans are to refresh thermal grease and replace all the memory and vrm pads on both 8800 ultras as they are running very hot.
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Last edited by BossBorot; 01-30-2019 at 05:39 PM.
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post #757 of 921 (permalink) Old 01-30-2019, 07:04 PM
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Some interesting stuff in this thread. I pulled out my old LGA 775 stuff today to try some subzero overclocking (-17C ambient), but the CPU temp sensors bugged out. Granted, this is an Asus P5E3 wifi mobo which is either X38 or X48 (I forget), and not a 790i, but might be interesting to some folks here. I hit 182c on the cpu apparently, LOL
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CHILLER DESTRUCTION
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post #758 of 921 (permalink) Old 01-31-2019, 04:24 AM
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Quote: Originally Posted by Hydroplane View Post
Some interesting stuff in this thread. I pulled out my old LGA 775 stuff today to try some subzero overclocking (-17C ambient), but the CPU temp sensors bugged out. Granted, this is an Asus P5E3 wifi mobo which is either X38 or X48 (I forget), and not a 790i, but might be interesting to some folks here. I hit 182c on the cpu apparently, LOL
Mmmmm can smell it cooking the bacon lol.

So an update from me aswell, I gave that 2 x8GB kit of Corsair Vengeance 2400MHz I have another shot and I updated to p10 but I also tried it on p09 and it would still C1 out if both sticks were installed. I tried each stick separately in each slot and they both work fine by themselves but as a pair its a no go. On p10 I did however get a bit further as it would almost POST (keyboard LED’s would light up and the system would beep but just flash 5d error and still no screen) this is a bit better than before as p09 for me at least wouldn’t even let one stick work. But I still couldn’t get it to boot past 1333MHz.

On the other hand my Patriot set that I am currently using caused a random Quota_Underflow blue screen (at least I am about 90% sure that is what caused it) whilst playing Dragon’s Dogma Dark Arisen. So who knows what was going on there.

Lastly was really considering delidding the QX9650 (yes I know its a soldered chip) because I have read a lot of places that it will drop temps even on solder by about 5-6C. I know on my Broadwell i7 I dropped about 22C under full load, but that was crap Intel TIM and not solder like this. Plus I really don’t want to kill the chip so until I find a magical “fool proof” method I won’t do it.

Motherboards I’ve killed: Sabertooth Z77, AsRock G41-C R2.0, MSI Z97 Gaming 5, ASUS Z97A, EVGA 790i SLI Ultra.
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Last edited by TwilightRavens; 01-31-2019 at 05:13 AM.
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post #759 of 921 (permalink) Old 01-31-2019, 09:09 AM
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Quote: Originally Posted by TwilightRavens View Post
Lastly was really considering delidding the QX9650 (yes I know its a soldered chip) because I have read a lot of places that it will drop temps even on solder by about 5-6C. I know on my Broadwell i7 I dropped about 22C under full load, but that was crap Intel TIM and not solder like this. Plus I really don’t want to kill the chip so until I find a magical “fool proof” method I won’t do it.
I don't remember where I saw it while looking around this month but I saw someone attempt this. From what I recall the quads are hard to do. If I where in your position I would buy up a few dual cores which can be had cheap and try on those first then move on to delidding a cheaper xeon or lower end 775 quad before trying on a QX processor. A second from top of the line dual can be had for like $15 or less (e8600)

edit1: also for those talking about ebay pricing there are tons of 790i boards that are posted as buy it now for crazy prices but they are always there when I look so I don't think they are selling. The last few auctions have been reasonable someone got a QX9650 and a 790i board combo for like $130 last week and there was another auction for a board throwing RAM related post codes that went for under $30.

edit2: To help people with price anchoring bellow are some expired auctions for 790i over the past two months. None of these are my auctions.

$24 + shipping: evga 790i with ram related post codes: https://www.ebay.com/itm/163495404460
$95: 790i evga FTW non digital (higher end 790i): https://www.ebay.com/itm/132919032653
$100 + shipping: 790i evga, 260 gpu, ram, stock cooler, and psu: https://www.ebay.com/itm/173674144427
$126 + shipping: 790i evga FTW non digital (higher end 790i) with Q6600 and some ram: https://www.ebay.com/itm/283322911716
$129: evga 790i and QX9650: https://www.ebay.com/itm/254082954684
$165: 790i striker II (higher end 790i) disassembled with Q6600 and some ram with box: https://www.ebay.com/itm/132918837421

Last edited by BossBorot; 01-31-2019 at 09:38 AM.
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post #760 of 921 (permalink) Old 01-31-2019, 10:28 AM
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Quote: Originally Posted by BossBorot View Post
I don't remember where I saw it while looking around this month but I saw someone attempt this. From what I recall the quads are hard to do. If I where in your position I would buy up a few dual cores which can be had cheap and try on those first then move on to delidding a cheaper xeon or lower end 775 quad before trying on a QX processor. A second from top of the line dual can be had for like $15 or less (e8600)
Actually I did try it on a C2D E6700 and a Pentium 4 631, I know for sure I killed the P4, the Core 2 Duo though I am unsure if it’ll work or not.

See my post here if you wanna see the dead P4: https://www.overclock.net/forum/5-in...l#post27531632

Edit: Err P4 630, not 631.

Motherboards I’ve killed: Sabertooth Z77, AsRock G41-C R2.0, MSI Z97 Gaming 5, ASUS Z97A, EVGA 790i SLI Ultra.
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Intel i5-3470T 2.9GHz LGA 1155 CPU
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FOXCONN H67S ITX motherboard (LGA 1155)
GPU
EVGA GTX 660 Superclocked
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Undecided yet
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Last edited by TwilightRavens; 01-31-2019 at 10:34 AM.
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