Posts by Keith Myers

1) Message boards : Number crunching : Don't know where it should go? Stick it here! (Message 1940858)
Posted 15 hours ago by Profile Keith Myers Special Project $250 donor
Post:
I didn't get an email either. Wouldn't have expected one from my past experiences with drawings and raffles. I'm a person who can't even win a door prize in a drawing that has guaranteed a prize for everyone entering.
2) Message boards : Number crunching : New computer on the way (Message 1940639)
Posted 1 day ago by Profile Keith Myers Special Project $250 donor
Post:
Thermaltake cases are very modular. You can either leave all the bits in or take them out. I have never needed tons of storage space so I just remove the drive bays. Took out the three 5 1/4 bays in the front and the three 3 1/2 drive bays under the motherboard. Kept the three 2 1/2 drive mounts on the side because they help stiffen up the case and don't take away any space.

I removed one of the 3 1/2 drive bays in the X9 case and had removed the other but put it back in since it provided an ideal spot to mount an extra fan blowing on the PCH heatsink on the Intel motherboard that was the root cause of that motherboards many RMA trips by the previous owner. Removed the front 5 1/4 bays in that machine too to fit another 200mm fan along with the stock one.

And they are really not more expensive than popular brands like Corsair but not even as expensive as Case Labs.
3) Message boards : Number crunching : Panic Mode On (112) Server Problems? (Message 1940578)
Posted 2 days ago by Profile Keith Myers Special Project $250 donor
Post:
Munching them as fast as possible.

4 in 90 -95 seconds:-)

Ha ha ha ha ha ha ha . . . rub it in Kevin!
4) Message boards : Number crunching : New computer on the way (Message 1940577)
Posted 2 days ago by Profile Keith Myers Special Project $250 donor
Post:
As promised here are the new pics of Numbskull after the mobo/cpu transplant. Not much to see really because it looks the same.

Replaced all four XSPC 90° fittings with other brand. The XSPC ones are really crap. Hard to believe with the general high quality of their other parts. Also replaced the G1/4 thermal sensor in the pump. Will have to see if I can unbury the broken lead in the potting in the old sensor to recover its functionality. Project for another day and low priority. The new one cost less than $8.

The Hero mobo and 2700X are a pleasure to work with. Just plug them in, select what every overclock you desire in the BIOS and off you go. Easy-peasy.

Crosshair VII Hero-2700X
New 90° fittings
C7H-Trident Z memory
Second 1070 restored
5) Message boards : Number crunching : New computer on the way (Message 1940569)
Posted 2 days ago by Profile Keith Myers Special Project $250 donor
Post:
I saw the Einstein work on the stats site. I too do Einstein along with GPUGrid.net but only only on the GPU. I was doing some CPU work at GPUGrid.net on my 16.04 Ubuntu systems but the tasks won't run on 18.04 yet.
6) Message boards : Number crunching : New computer on the way (Message 1940562)
Posted 2 days ago by Profile Keith Myers Special Project $250 donor
Post:
I see that on the stats sites. His daily production is already at the #2 position.
7) Message boards : Number crunching : New computer on the way (Message 1940533)
Posted 2 days ago by Profile Keith Myers Special Project $250 donor
Post:
I would say in about two weeks based on how long my most recent "new" host has recovered from its upgrade. He still could get a further boost with a better AP config other than the stock one he is using presently. But who knows when any new Arecibo work will show up for the splitters? And he did mention he is short on time to play with the new host.
8) Message boards : Number crunching : New computer on the way (Message 1940489)
Posted 2 days ago by Profile Keith Myers Special Project $250 donor
Post:
Just a "attaboy" shoutout to you Kevin. I see your TR host at #9 in the Top 20 Hosts list and climbing fast. I suspect you will be challenging my 4 gpu host at #2 shortly. You might even get to #1 and pass Petri since he doesn't really have 16 1080Ti in his host. But that Titan V card is the dark horse factor in his host.
9) Message boards : Number crunching : New computer on the way (Message 1940478)
Posted 2 days ago by Profile Keith Myers Special Project $250 donor
Post:
Yes that is the situation any third-party service organization has to work in. Still, never had any troubles signing new customers to a service contract after they came off the usual 1 or 2 year warranty service coverage. The OEM basically sold a new system as a "loss leader" at prices below production cost and then made up the lost profit on many years of exorbitant service contracts with the customer. We as a third party service organization could offer better uptime and response times on a contract than the manufacturer at half the contract price of the OEM.

One of my jobs was to deinstall old systems we purchased from a customer after they bought a newer system. I was usually hauling the old machine out on a weekend as the new OEM machine was getting delivered and installed on Monday. Then I refurbed the machine back to new after stripping the chassis down to bare metal and rebuilding it back to factory specs. Then we sold the refurbed system to a new customer along with a new service contract.

I got very good at rebuilding or refurbing parts that had been retrieved by "dumpster diving" as they say.
10) Message boards : Number crunching : New computer on the way (Message 1940457)
Posted 2 days ago by Profile Keith Myers Special Project $250 donor
Post:
Yes, that was the challenging part, trying to source the supposedly "proprietary" components. The OEM would typically sand off any original manufacturer idents. I got very familiar with Mouser Electronics, Newark and Digi-Key catalogs. I also had an extensive library of board schematics from when the manufacturer published them for service personnel. That was stopped after a dozen years. They wanted the manufacturer service personnel to snap a bad board in half across a desk edge when removed from a machine and taken offsite to be disposed. Also got pretty good at dumping FW programs from some of the chips and learned to blow the code into new parts. The boards were not cheap. Minimum $2K to $30K in cost from the OEM. And that was only if they would sell to you as third party competitor. Had to have the customer order the parts if we needed it overnight to get a machine back online for treatment the next day. If I ordered the part, the manufacturer wouldn't even start processing the order for shipment for ten business days. They did play business hardball.
11) Message boards : Number crunching : New computer on the way (Message 1940456)
Posted 2 days ago by Profile Keith Myers Special Project $250 donor
Post:
My main IC's were 74 family TTL, HNIL, CMOS and Op-Amps. All of them were in sockets or I put in sockets for them. I also have a TTL family tester. Just pull the chip, plug it into the tester socket and it would read out what gates were bad if any. Grab a replacement chip and socket it and move on to another. The transistors were all 3 pin devices in TO cans and or TO-220 packages.

Easy to troubleshoot with a DVM or O'scope. I also had a custom board rig which pulled all the card edge connectors out to a terminal strip for mockup and troubleshooting. My biggest problem was after 20 times in rework, solder pads and traces would get lifted from the board and need replacing. After a dozen years, the OEM started making the cards as cheap as possible to prevent third party rework and even touching an solder iron to a pad for the first time would almost always lift the pad. My job got harder after that. At least there was always bench work awaiting me when I didn't have any field service calls to make.
12) Message boards : Number crunching : New computer on the way (Message 1940374)
Posted 3 days ago by Profile Keith Myers Special Project $250 donor
Post:
That was the smallest SMD device I had ever tried to work with. Couldn't really see it with the naked eye. I was using a 20X joulers loupe just to find it on the motherboard and try positioning it over its original landing position on the trace. If I had had proper solder paste and a hot iron or tweezers, I'm sure I could have replaced it.

My background was 20 years of depot level board repair but almost exclusively through-hole construction. The boards at the tale end of my career were just starting to transition to SMD componentry. I wish I had kept up with the technology since that is the way of the world now except for high power stuff nowadays.
13) Message boards : Number crunching : New computer on the way (Message 1940234)
Posted 4 days ago by Profile Keith Myers Special Project $250 donor
Post:
I was first trying to use my gas soldering iron with heat shrink tip at first which works similar to a hot air iron in practice. I have used it in the past on larger SMD devices successfully. But this device was only about 0.5mm and didn't present a big enough surface area to accumulate enough heat to melt the solder on its ends. After trying and failing for several hours I got out my normal Hakko soldering station with the needle tip and just bridged the trace. I never got around to purchasing a proper SMD workstation because I never really got started with that technology as it ramped up and my work life ended.

What I like about the Thermaltake Core series is that the side panels are interchangeable. You can switch the acrylic panel from left to right and vice versa for the perforated panel. I actually purchased an additional perforated panel for my X9 case so I have perforated panels on both sides as well as the normal top panel. I might do the same for the X5 case. Right now with the missing 1070 on the outside PCIe slot I can get away with the standard acrylic panel on the left. Once I rebuild it again and get the second 1070 card back in I will be switching the acrylic panel to the right side which is against the wall and not normally visible anyway. That way the end card can get some extra air into its blower fan other than what it draws in from the front. The top 1070 near the cpu ends up the hottest card in all my systems normally.
14) Message boards : Number crunching : New computer on the way (Message 1940076)
Posted 4 days ago by Profile Keith Myers Special Project $250 donor
Post:
Sorry Kevin, it is a private Team forum for the GPU Users Group. You don't have access without joining the group.

I'll repost my message.

Well Numbkull is back online . . . . mostly. I managed to scrape the smallest possible smd resistor off a trace near the cpu socket taking the motherboard out of the old case. Actually managed to find it in the trash with all the mastic scrapings. Then wasted about 4 hours trying to solder it back in place. Finally decided to take my chances and just bridge the trace with solder.

Then finally got started with the actual installation of the radiators in the new case. That was fairly straight forward except I needed to use two 90° fittings at the pump. And both leak if upset when moved. The way I mounted the pump/reservoir is in the bottom of the case and any leaks or drips is over nothing. The two 90° fittings I used on the 1080Ti Hydro Copper card were fine. So I need to order more 90° fittings and hope the new ones are better than the last. Filled the system and purged the air and then left it running overnight on the kitchen table to finish purging and look for leaks.

So back to its normal spot in the cruncher bedroom and it just managed to fit on the table front to back. Turned on the system and hoped that the SMD device wasn't needed. Booted up and Windows found no network adapter. Oh-oh. Back to the BIOS to be sure it was enabled. Yes it was and back to Windows. Still no network adapter. OK, disable the onboard motherboard adapter and put a add-in network adapter in the PCIe-2 PCIeX1 slot that I used for a WiFi card originally in the machine before I wired the bedroom for hardline ethernet. That is the only open slot with 3 gpus installed. Power the system up and no POST though I hear the POST beep. Can't see the BIOS. OK, take the card out and put the WiFi card in. Same difference. Pull the network card and the machine boots to Windows no problem. So pulled the end 1070 since it was the easiest to get to and plugged in the wired Ethernet card there and I have Internet again.

So I will have to run on two gpus for a while so I at least have connectivity. Also I manage to break my thermal sensor at the potted G1/4 fitting on the pump so I lost my loop temperature. At least the 1080Ti reports its temperature and since it is only water cooled at least know the ballpark loop temperature.

So, will probably end up tearing the system apart again to replace the motherboard along with the cpu. Will order more 90° fittings and another G1/4 thermal sensor. I will get another Crosshair VII Hero motherboard and another 2700X, The Hero and the 2700X are so much better than either the Prime Pro and the RMA'd 1700X. Doubly so when both are combined. At least the case worked out very well as I expected. Was great working in it. So much space.

As promised here are the pics. It will look the same when the motherboard and cpu gets replaced.




15) Message boards : Number crunching : New computer on the way (Message 1940008)
Posted 5 days ago by Profile Keith Myers Special Project $250 donor
Post:
pics!!

Look at the "Whatever One" thread in the GPUUG forum. Details of my build and problems and temporary solutions.
16) Message boards : Number crunching : Panic Mode On (112) Server Problems? (Message 1939861)
Posted 6 days ago by Profile Keith Myers Special Project $250 donor
Post:
I saw that. The list of files goes on forever. Should be plenty of work available as long as the splitters do their job. No Arecibo work so the RAC's will continue to fall.
17) Message boards : Number crunching : Panic Mode On (112) Server Problems? (Message 1939593)
Posted 8 days ago by Profile Keith Myers Special Project $250 donor
Post:
Don't worry about it. Carolyn has had file issues since Christmas. I've had Carolyn issues on my Donation page since then. Others have had Carolyn issues on other files too. You are in good company.
18) Message boards : Number crunching : New computer on the way (Message 1939513)
Posted 8 days ago by Profile Keith Myers Special Project $250 donor
Post:
Let me know when you are comfortable with the system and I can provide some scripts to take the cards in P2 state and boost the clocks back to P3 state effectively. Also there is a script to set affinities and priority levels for the cpu and gpu apps.
19) Message boards : Number crunching : New computer on the way (Message 1939452)
Posted 9 days ago by Profile Keith Myers Special Project $250 donor
Post:
It is either easy or a bit of work. Best case is the monitor is newer and exports its EDID data and gets interrogated about its capabilities at boot and everything falls into place and the display manager picks up the change and adjusts accordingly and passes the configuration through to the Xorg server which rewrites the xorg.conf.

Second best is to plug the monitor in and it runs at the old monitor resolution and you use the Display app in Settings to set the new screen resolution and it adjusts things accordingly.

The most work is to use the xrandr command line utility to add a new custom size to the pick list menu in the Display app.
20) Message boards : Number crunching : Would like to contribute. Need help. (Message 1939407)
Posted 9 days ago by Profile Keith Myers Special Project $250 donor
Post:
He's going to need to tell me some of the particulars of the system components. Mainly the memory. The system has 2 sticks of 4GB for a total of 8GB. So at least he will be running dual channel.

But what are the specs of the memory sticks themselves. What brand? What speed? Ryzen performs best with the highest clocked memory as possible up to 3200Mhz. I would think with that low density, the memory sticks will be single sided which is a plus. But the tuning is very memory brand specific for optimized.

Also, I have no experience with the B350 chipset. But there are many users in the forums running motherboards with the B350 chipset that are getting good cpu and memory performance out their systems.

Will need to know the brand, make and model of the motherboard to better suggest tuning parameters in the BIOS also.


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