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Up Topic Rybka Support & Discussion / Aquarium / Upgrade my computer
- - By pawnslinger (****) Date 2020-05-08 01:28
Finally able to upgrade my computer.  Three years on my old 1700X was very productive.  Now a processor with more than double the power... the R9 3950X.  I have spent the last 2 days getting it "dialed in".  Somewhat of a problem, because I am still using my old motherboard with the X370 chipset... and as always (it seems) the AMD chip is running hot out of the box.  So I have under-volted and under-clocked the chip and still have a faster CPU with twice the cores as my old chip.  Here is the CPUZ for my new processor.
Parent - - By centipawn (*) Date 2020-05-08 05:45
Congrats to the new beast! May it bring you many advantages surprise moves. Unless we happen to play against each other :grin:
Parent - - By pawnslinger (****) Date 2020-05-08 06:15
Thank you.  If we play, all I hope for is a good and interesting game.

Of the games I am currently playing only about 10% are really holding my interest.  Two of them are KI Mar del Plata - one White, one Black... too few opponents want to allow this opening.
Parent - - By centipawn (*) Date 2020-05-08 08:48
Interesting. I have one Mar del Plata game going on at the moment as well. Reached through a non standard move order - 1.Nf3 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.d4 O-O 6.Be2 e5 etc. I have the Kotronias books. I actually wrote a little piece of software that helps me identify where to look in my books without manually having to check for transpositions.
Parent - - By pawnslinger (****) Date 2020-05-08 09:12
From one of my games...

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Nf3 e5 7.O-O Nc6 8.d5 Ne7 9.Ne1 Nd7 10.f3 f5 11.Nd3 f4 12.b4 h5 13.a4 Nf6 14.Nf2

This game is active and already beyond this position.  I am White in this and this is the first time I have tried Nf2 here.  I find this opening quite interesting and love to play either side of it.

This is the 3rd time I have played this opening with this particular opponent... we are becoming old friends.  In this game I started off with the comment... "Care for another Del Plata?"  He answered sure, and off we went.  As I said, this game is still in progress, so, please, don't give me any analysis... we are several moves beyond this point currently.  At this time, I am trying to decide my 19th move... been working on it for about 6 days so far.... the beauty of Aquarium!!
Parent - - By Master Om (Bronze) Date 2020-05-09 05:12 Edited 2020-05-09 09:24
Nf2 not a good move. U r leaving your advantage though. Now game is equal . After a5 black has equal play.

Edit: Not after Nf2. After Nf2 its Rf7. a5 can be played after b4.
Parent - - By pawnslinger (****) Date 2020-05-09 06:38
I guess I am lucky then... he didn't play "a5".  In my opinion, just about everything peters out to equality given best play from both players.  In this game, Black's plan has been to continue to push forward on the Kingside and ignore the Queenside as long as possible.  As of now, Black has just made his 1st Q-side pawn move on his 18th.  And White has a pawn already sitting on "a5".  After the game has gone a few more moves, I will share some more...

Nf2 is just an experiment on my part.  Other moves I have tried here have all led to draws.  It might be bad, however in the Del Plata, bad moves sometimes turn out good.  Time will prove it.  My opponent here is of the same title as myself, IM, and a very similar rating to myself.  So it is entirely possible that he will make the same sort of mistakes as I do.  We are both rated in the range 2400-2450.
Parent - - By Master Om (Bronze) Date 2020-05-09 08:38
The experiment sud have a concrete plan. U need to know why Nd3 is played.
a5 is a prophylactic move to delay attack on queen side in MDP. I have played without a5 too and drawn.
but attack becomes overwhelming on queen side. losing tempo by playing Nf2 can cast 0.5 points.
Parent - By pawnslinger (****) Date 2020-05-09 15:00
Well, yes, of course.  I know why Nd3 is played.  It is not the first time I have played this.  With the N on d3 it supports the Q-side attack.  But I have never won a game with the N played to the Q-side.  I have only drawn or lost.  So normally I have begun to avoid playing Nd3, at all, in this opening.  Most of my recent games in this opening find the N going elsewhere.  So I played Nd3 here, with the sole idea of trying Nf2.  And at this point, if I had to make a prediction, I would say that a draw is the most likely outcome.  Which would mean... I will deploy my N, in future, to some other square than d3.
Parent - - By pawnslinger (****) Date 2020-05-09 06:49
A real quick look at "a5" and I think "c5" has promise.  My favorite engine favors "Ba3" for some reason.  Hard to render a snap judgement like this.  It certainly is worth looking at in more depth.
Parent - - By Master Om (Bronze) Date 2020-05-09 08:54
Ba3 is obviously best move for a reason.
a5 has to be palyed before by black.
But here blacks plan sud be Rf7 and Bf8 followed by g5 ....
Parent - - By pawnslinger (****) Date 2020-05-09 10:16
Actually in the game, Black has not yet played "g5".... which I find quite odd.  Still, until I can spend more time looking at "a5", I like the immediate break of "c5" with my eye on pressuring "c7" as my strategic goal... a favorite attack point in this position.  Of course, Black's Rf7 helps balance this effect.  Some GM games find White with a strong attack on "c7", but they fail to convert and Black can carry the day with Bishop or Knight sac's against the White King.  Nakamura has demonstrated this attack in a few of his games.  They are quite entertaining to go over.
Parent - By Master Om (Bronze) Date 2020-05-09 11:53
Immediate c5 is a frequent move and works.
Parent - - By The Wizard (***) Date 2020-05-20 17:27
Hi, I was looking at the position after 14.Nf2 with Master Oms idea of replying 14...a5 which looks and feels like one of those natural moves trying to undermine the white queenside pawns especially if he can get white to play b5 and maybe get ...b6 played holding up advances on that side of the board. BUT the engines today are so strong especially on modern hardware and every engine I tried on my 3990X at 4.4Ghz (today, but with only the basic 64 cores as it is so hot)  simply give 15.Ba3 with a big plus for white as black cannot hold the queenside.

The engines (I always use engines with the contempt turned off when analysing) if anything were not so sure about blacks 13th move ...Nf6 and preferred 13...g5 but there was not a lot in it and lines could easily transpose of which I have some games in my database with g5 and Nf6 ... After the move played 13...Nf6 my database has games with 14. a5, c5 and Nf2 the engines slightly prefer 14.c5 saying that the latest Stockfish switched to 14.Nf2 at 45ply the engines then gave 14...g5 as there preference although not by much ... My database then gives games with 15.c5, a5, h3 and Bd2

Parent - By Master Om (Bronze) Date 2020-05-20 17:35
And black holds most of the moves.
If u have a ICCF database search my games from black side.
ID 280243. U will see what I mean.
Parent - - By pawnslinger (****) Date 2020-05-24 05:53
The game has progressed, so 2 more ply are now uncovered:

After 14. Nf2, Black did indeed play Rf7, as you predicted, Master Om.  My reply was c5... intending to exert pressure on d6 and indirectly c7.  Of course, Black's Rook move anticipates this, as the Rook on the 7th can now both attack on files 6-8 while defending c7.  In fact, having played this general position in an earlier game (with my N not on f2), I lost an interesting game against Master Koo (2482)... in that game, I wasted time with my QB.  Allowing what I think was a brilliant K-side attack by Koo.  A nice, efficient,  lesson.
Parent - By Master Om (Bronze) Date 2020-05-24 13:05
Parent - - By ChiefPushesWood (**) Date 2020-05-08 12:27
Congrats my friend.

Parent - - By pawnslinger (****) Date 2020-05-08 16:00
Thank you.  It seems to be working smoothly.  Gave my old 1700X to my son.  So far he doesn't seem impressed enough to install it.  I gave him a B450 mobo to go with it (he has an old old i7).  He is my hardware installer, so to repay his kindness, I gave the old chip, old memory and new mobo to him.  So far he says he doesn't want to bother, because he will have to buy a new Windows.  Windows keys are cheap I told him.  Anyhow, we have been locked up in the "stay at home" together -- and it is beginning to drive us all crazy.
Parent - - By Ghengis-Kann (***) Date 2020-05-09 15:40
I have exactly the same chip, and found the most efficient settings are to be had using the 90% Eco mode of Precision boost 2.
It gets almost exactly what you showed at 3.7 GHz on all cores for about 125 Watts.

You can push it close to 4.0 GHz on all cores if your motherboard can handle it, but will double the power consumption.
I'm running a Noctura NH-15 cooler and an MSI Prestige Creation motherboard.
It has been running at nearly 100% for 5 months on either chess, crypto, video games, or scientific data analysis.
Fantastic chip, you won't be sorry you bought it.
Parent - By pawnslinger (****) Date 2020-05-09 19:18 Edited 2020-05-09 19:20
Ahhhh.... you must have a newer motherboard.  On my 3 year old X370, I am lucky the chip runs AT ALL.  No PBO, Eco mode or any of that stuff.

I can fiddle with the different frequencies manually, so I have set BCLK to 100, FCLK to 1600 (my memory is 3200 mhz, FCLK s/b half of memory speed), CPU multiplier to 37 and CPU voltage offset to -0.00625.  If I leave the voltage auto, then my board goes crazy high voltage, but if I give a tiny under-volt, then it calms down and is reasonable.  Strange.  Anyhow, running 28 threads of Aquarium and Stockfish gets me to 90 percent utilization and the temps are very reasonable.  CPU temp hovers around 50-60, depending on my A/C.  Wattage for the CPU hovers around 100.  CPU voltage around 1.09 - 1.11 (it jumps around a bit).

When I first installed it and left my board on AUTO... it was running 4.1 Ghz all core and wattage around 125.  The voltage was around 1.2 to 1.4 and the temps were in the range 60-75 C, again depending on A/C.  Here in Phoenix I have to worry about temps a LOT, because Summer is coming... June should see highs in the range of 45-48 C.  And indoor temps will also be high, the A/C struggles to keep it cool during the Summer. 

So I decided to fiddle with it, to see if I could get it ready for Summer use.  In Winter, it would have been okay, nice to have a space heater <grin>.

I am considering buying one of the new B550 motherboards when they come out next month...

For the record, the 3950X can take the heat, 60-75 C is not a bad operating range, but I cannot.  This computer sits in my bedroom, next to my bed... during the Summer I would prefer to have the cool and quiet PC... :cool:
Up Topic Rybka Support & Discussion / Aquarium / Upgrade my computer

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