Corsair Obsidian 800D Watercooled | Intern or Extern???

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osshead

New member
hey gentlemen,

i decided to build a new system and got myself an obsidian 800d. as i read afterwards, what a pity, the case does not fit very well with air cooling. so for now i want to build my first watercooled system. my problem is that i am a kind of noob in this section. for sure i have read a lot but there are so many questions open.

there is a thread in this forum about the positioning problem with the lc-components so i thought about an external lc-system.

here we come to the point. does anybody can tell me the pros and cons? or even give me a recomondation?

thanks a lot for you help and please excuse my gramma. ;-P

osshead
 
You can get it all in an 800d tbh dude. External is just messy and pointless. theres plenty of 800D's about for you to take a guide where to fit the kit.
 
hey tom,

thanks for your quick answer. so you dont think much about the "koolance exos 2 lx" or the "Aquacomputer Aquaduct 360 XT mark III"?

greetz
 
Yeah those external solutions the koolance and the aquacomputer are a waste of money imho, they also look sloppy on your desk to boot. It would be one thing if they where cheap but for that coin i would just make a simple loop for the same cash.
 
ok gyus, your posts are that united, that i decided to build an internal watercooling system.

a quick overview about my selected components:

Watercool Heatkiller CPU Rev3.0 1366 + backplate

Hardware Labs Black ICE Radiator SR1 360 - black

Laing Original-Pumpe DDC-1T/Plus - 12 Volt

aqua computer aquaero 4.0 powerbooster

Noiseblocker BlackSilent Pro Fan PLPS - 120mm

EK Water Blocks EK-FC5870 - Nickel + backplate

what for a watertank would you suggest? and wich tubeszie would you recommend? all threads i read and nearly all pictures i saw showed 1/2" tubes? is that just because the good looks or are smaller tubes not as good?

thanks a lot for your support! this community is one of the best i found on the net and i am looking forward to your posts.

and by the way... happy easter!

osshead out
 
Just buy a res that will help keep the loop tidy, one that fits in an optical bay would be best on that case tbh. Hose wise just use 1/2 barbs but 7/16 hose, its a bit smaller, seals on the barb better, looks tidier and is easier to work with once its on the barbs too.

Make sure you post a build log dude :D
 
thanks for the quick answer tom. i surely will post a build log and include pictures as well.

are there any barbs or hoses you would recommend or are they pretty much the same?

the components i already got are:

case: obsidian 800d

psu: hx 850

ssd: ocz vertex turbo 120gb

ram: 6GB Dominator gt 2000

for now i will unfortunately have to wait untill the rampage iii extreme will find its way into the shops, but i think after all you told us so far it will be a motherboard worth waiting for.

by the way, which ati 5870 is the best for overclocking? the asus with an ek-waterblock or the powercolor-lcs?

so many questions i know. but i want to do this one straight and i am really grateful for your support.

cheers!
 
Just be aware of dual bay resevoirs. If there are drive rails separating each 5.25 bay, which in all likelihood there will be, the res will not fit, and you will have to dremel them off the case (or use pliers but it looks bad). I'd say go for a single bay res, mount the pump on a fan mount e.g. http://www.watercoolinguk.co.uk/p/UNDesigns-Z2-Bracket-Fits-120mm-fans_735.html, get a top for the pump, like the XSPC DDC top or similar and you'll be laughing. Generally I prefer to go with 1/2" barbs like these: http://www.watercoolinguk.co.uk/p/14"-BSPP-12"-Hose-Tail-EK_4.html but its up to you. The compression fittings work just as well and look better but are a little more expensive. I prefer tygon 3/4"OD, 1/2"ID, but as tom says, 7/16 ensures a tight fit.

If you're planning on cooling a 5870 and an i7, I would strongly suggest going for a 240mm rad such as http://www.watercoolinguk.co.uk/p/ThermoChill-PA1202-240-Radiator-15mm_768.html or perhaps larger (look for around the £55-60 mark) for the CPU and a 360mm in the £65-70 mark. The thicker radiators provide much better cooling than the "stealth" radiators.

Fan wise, you probably want to get some reasonably high CFM fans, probably in the 1500RPM+ range. With the graphics chip, you lose your warrantee swapping out the cooling.

If you've got more Q's keep em coming.
 
oh man, thanks again for your "very much helping" support.

@diablo: i found this on the (by the way very nice) shop: http://www.watercoolinguk.co.uk/p/WCUK-Corsair-Obsidian-800D-Pro-WaterCooled-Case_1202.html

so i suppose that this dual bay reservoir will fit into the case, but i will check it on tuesday when i see the case with my own eyes again. would be nice to have the pump fitted so easily in the 5.25" bay. but if not, thanks for your solution. its a bit more work, but it will definitely do the job.

my rad will be a 360 one because of the space the case offers. the price is not unimportant, but i will not hesitate to spend a 100€ more if the coolingsystem gets way more quiet or better. i thought the 360 black ice sr1 would be a good soulution, but sounds like i will have to think this one over.

fan wise i thought about three Noiseblocker BlackSilent Pro Fan PLPS - 120mm.

the barbs you recommended are to push the hose onto them. aren't the ones to screw safer?

thanks for your replies...!
 
The screw ones (compression fittings) are much neater and safer, but do cost a bit more. I only mention this because I was thinking of going all compression for all my loops, and it would have been over £100 for fittings alone. If the dual bay will fit in, definitely go for it. They look really good, aned I'm really pleased with mine, despite the "handiwork" that went into fitting it.

The noiseblockers are good, but quite expensive. Personally I went with Yateloons and a fan controller. The Scythe Gentle Typhoons 1450 are very well recommended, but it depends whether you want silence or excellent airflow. The Scythes are probably pretty silent, and I know they offer an 1850rpm variant but I'm yet to hear much about those.

You may need more cooling than a 360 will give, but the obsidian has a lot of fan mounts, so you may be able to expand as you go along.
 
allright, which radiator would you recommend to provide best "speed-cooling"? i've read that the black ice series is very well constructed with smooth edges and provide good cooling. the feser ones are another option.

something else what has attracted my eye is the new asus matrix 5870. yes, its expensive but birds are whispering that it'll be the best 5870 you can get. maybe its a bit too early to ask, but what do you think of that kind of toy?

hope you all have had nice easter days mates.
 
TFC radiators are good, but not as good as the hype. I've got one, but its pretty similar to other radaiators and wasn't worth the price premium. That said, if you find one within a couple of euros of another brand, its still definitely worth considering.

I'm pleased with my black ice, it seems to do the job with a decent high airflow fan. TFCs are more tolerant to lower CFM fans. Thermochill is the another option, but watch out because they have non standard spacings. I'd see what the prices are like, but black ice seems like a good way to go.

The Matrix looks pretty nice, but other cards can be clocked up to high speeds with asus's voltage tool or MSI afterburner.

The cooling solution will definitely help noise and overclocks, but see if Sapphire's custom cooler on their 5870 kicks out similar clocks. Just go to wait for them to bring out 2GB cards, although unless your planning on seriously heavy eyefinity, 1GB will probably be sufficient.
 
down to business

hey guys,

after all your help, recommondations, thoughts and inspirations today i ordered all the components. i will have to sleep over it one more night and tomorrow i will transfer the money.

all in all the watercolingsystem will cost me 650€ (about 570£). it really is a lot of money but i am so looking forward to the system.

the asus 5870 is ordered today and the rampage iii extreme is keeping me waiting.

anyway its like christmas birthday and eastern together.

i hope i will manage to put the wc-system together by myself without operator errors or fails! certainly i will take fotos and post a build log.

one last thing... the cpu. tom tested the gulftown. its exorbitant expensive but i am really considering this one because of the 920 is hard to get in stores and via the web its hard to find out which batch number you will get. even though the price is hot, its not much more expensive than an i7-975x and as tom wrote its the strongest cpu on the market and has a hell of overclocking reserveres.

what do you think. is it just too reckless to buy this one or is it a good investment?

osshead out.
 
If you're worried about spending £570, I think spending £820 on a processor is a bad idea. You can get a better overclocking base i7 chip, it is called the i7 930 (catchy huh?).

Unless you need all 6 cores, I would wait and see, as the money would be better spent on another 5870. Ultimately its up to you, but £800 is too much to spend on a processor that will be bettered in under a year. Extreme editions are great for benchmarkers and reviewers with their free samples, but for the rest of us mortals there is little point. And I|'m speaking as someone who bought an extreme edition QX9770.
 
ok, that sounds convincing. with the 930 is there anything to be aware of yet? like "nogo" batchnumers or recommended oc-batches?
 
I've not heard of any no go batches, Bit tech did a review recently, where they had there's to 4.3GHz. I'm guessing they are just slightly more high clocking 920s, which are excellent.
 
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