Scratch Build – In Progress 7th.GeN - Rebooted ^^

Antony <3

Sorry guys, image host is down for awhile for unknown reason, hope it will be back online soon ^^

Got some project ideas i wanna share

 

You need those pics up asap. I was just praying they would all magically pop up. But none of them did.

This is going to be madness.

 

Watercooling drives?

Hi guys,

I have been looking for ages to find out how much heat can be dissipated from HDD surfaces, but unfortunately, i havent found much to go on 0.o

Decided to build a prototype of the watercooling rack i sketched out last week

My statement :

If a harddrive rack get waterblocks on the top and bottom, it should dissipate some heat from the disks placed in the rack


3x 500gb WD 7200RPM IDE drives mounted up in a chieftech disk rack


2x Mist Socket A? waterblocks to mount on the top and bottom 0.o


Reserator + some unbranded pump with ress ^^


And the tools for heat measurements ^^


This would be the temperature measured between the disks without any cooling of any sort


So.... ready for some numbers?

 

Damn you teaser

 

I still think watercooling HDD's is just a silly party trick. Unless you really, really insulate those things for silence, the water cooling just isn't necessary/doesn't make any difference. I think the best way for you to go would be to just use thick, say 6 mm, aluminum to make the drive cages and have some airflow across the whole pack.

BTW the heat output depends largely on the particular disk used, if you pick some green/slower RPM drives you'll be even better off without any silly WC loops...

Then again, you probably don't make much of this because it would be absolutely necessary

EDIT UPDATE: Oh about the temperatures, I got a bit carried away there. But my point was there's also surprisingly large differences between 7200 RPM "normal drives". So you can get lower heat output without sacrificing on the performance. I recently noticed my older 250 GB drive heats up like crazy in open air, it hit what felt like 50 C when sitting freely on the table during some bench testing.

 

Then again, i could have mounted up some drives in a Antec case or whatever and be happy?

But wheres the challenge? Yes, i totally agree that watercooling a bunch of drives is just on the edge of being useless, and that a 120mm fan would do a better job, with less weight, and prolly less noise aswell, but thats not really the point, now is it? ^^

Ofcourse the heat output would be different from a different set of disks aswell, but again, if lower temp can be achieved on a particular set of disks, then it would have mostly the same effect on another set of disks aswell more or less, a 7200rpm disk is kinda a 7200rpm disk 0.o

Over the top and beyond Cheesecake!

Been doing numbers for around 3 hours now, ill post em later today 0.o

 

Disk Watercooling, prototype's and effectivity?

Hi again guys, been doing some heat measurements the previous days, and guess its time to get some numbers out?

So... what has been tested?




Waterblocks on the side, directly on disks


Waterblocks on the top of the disks, directly




Waterblocks on the top and bottom of the rack

Duct tape is your friend... arctic silver applied to the blocks aswell ^^

So, onto the numbers, please note that these numbers are without stress testing the drives :

- Default temp of a single harddrive after 20 min, at center - 34c
- Default temp of multiple drives after 20 min, at center -38c

- Temperature of single drive with waterblock on top after 20 min - 20c
- Temperature of multiple drives with waterblock on the side, 20 min - 30c
- Temperature of multiple drives in rack with waterblock top/bottom - 32c / 34c mid disk

So, quite frankly, mounting a waterblock to the sides of a disk is rather useless, and it get's even more useless regards to the disks in between, as heat builds up quite badly

If watercooling of disks are going to be a reality of this project, then ill need a waterblock on top of each disk to keep them cool

Then again, 20c disks? that cant be bad?

 

Disk best operating temperature is between 25 and 35°C (idle and load). 20° are better than 40° tho, but worse than 30° IMHO

 

why not some proper radiators like the HWlabs 560? or 420

 

go away pope

 

Hard drive temperatures are a never-ending swamp of "methinks" and personal opinions, but my take is that 30-40 C is just fine. No point keeping them at room temperature, but I don't like them to be "hot" either. There's a Google-study going around showing little relation with the drive temperature and failure rate, but like you already said, just go for it, it's a hobby after all

 

They start acting funny at around -10F and usually stop working around -20F to -30F...... I tried putting a server out in my shed for "off site" backups. Shed was far enough from the house so that if it did burn down the server would be okay. Worked great until it got cold outside.

 

Nytt prosjekt på gang ja!

Råtøff skisse

 

Here, have a look at this:



It's from this study. Simply put you don't want to keep your hard drives too cool. That said my Samsung Spinpoints really don't like to go past 40C (SMART-temperature), where they start to create errors, until the temperature is lowered again.

 

Ah well... not much activity lately over here, but guess ill give u guys a small heads up on whats going on

First of all.... 8x 2TB WD Green series disks has arrived in the 6th.GeN to be able to transfer some of the files over to the somewhat larger raid 5! Also a LSI 8402 ELP 8 port sas controller has come in place =) Currently running at a staggering 46TB in 6th.GeN... too bad only 20 of em will be transfered onto this project.

Ive been doing some thinking regards to the previous designs, and im just about to be happy with how stuff turns out.

















Edges has been moved a bit, and the design has been moved in a more futuristic style, a large 4x140mm radiator has taken the place of the double 4x120mm radiators that were intended in the start of this build.

It can now hold 12x drives, and yea... its a downgrade from the previous builds 48x.. but keep in mind, that this is a lan pickup stuff rig and a gaming pc

Its been toned down to 15cm wide aswell, so hopefully, it will look really slim when its done.

The plans has been sendt to a CNC machining plant for fabrication! expect a proper update soon! this build is finally going to take form =)

 

THIS! Can't be anything else than awesome.

Men hvor er arbeidsloggen din på diskusjon.no? Kan ikke huske å ha sett den der.

 

Hardware update ^^

The raid controllers for the disk segment of this build has finally arrived..

Ended up on two LSI MegaRAID SAS 8208ELP controllers 16x 2tb WD 7200rpm green and 4x 1.5tb WD 7200rpm black

Got a quote from the CNC company im using aswell today, ended up on around 650$ for the aluminium for two cases along with the job in cutting it,

not all that bad to be honest 0.o its 4mm alu trough all

 

EPIC case you have there
can't wait to see it when it is done

 

Nothing I love more than a Triple-stacked gaming/server/powerhouse/custom rig, although I've never seen one before. Absolutely unique and epic.

Sub'd for sure.

Wanna know how you could be a badass? Send all those HD's back and get 25 x 250gb SSD's. I don't even want to know how much that would cost.