SGI: Hardware

So, it's the UK, Bank Holiday Monday, raining, Cold and just fscking miserable!

I still haven't got dressed and it's 20 past 12 in the afternoon.

Considering the effectiveness of turning my Octanes on to generate heat, I thought to myself, surely, the fact that you can heat your room and be productive on an Octane at the same time, then it beats having a heater on hands down? Therefore I do not feel guilty turning them on!

Not really a question.. just ramblings.

With an Octane on my desk I'm not afraid of a cold russian winter anymore!

It's now 2 hours later and my room is snug and warm.. long live the Octane Heater!

Bah. Try a Quad G5.

I have 2 but no apple made up specific power leaded.

ClassicHasClass wrote: Bah. Try a Quad G5.

I just read the other day that the coolant used in those late liquid cooled G5's is especially toxic. I did have one for a while, but luckily it didn't leak - gave it away to another Nekochanner a couple years back.

chicaneuk wrote:

ClassicHasClass wrote: Bah. Try a Quad G5.

I just read the other day that the coolant used in those late liquid cooled G5's is especially toxic. I did have one for a while, but luckily it didn't leak - gave it away to another Nekochanner a couple years back.

Are they dead?

This is an issue that's been coming into play in my computer room. I took my "his" side of our two-car garage and framed, dry walled, drop ceiling'ed and wired it into a computer room. Dropped in a cheap laminate floor and voila, a nerd cave. It has one hvac register in the ceiling that I can open and close. It's half-open as to not take too much of the AC/heat. In the evenings I'll go out and it'll be low 70's - we keep our thermostat set to 78*F in the summer but, being downstairs, the room gets cooler. I'll fire up my Octane and It'll send the temp to upper 70's in no time at all. My two NEC lcd's put out a ton of heat as well. I guess in a another month or so I won't mind.

oh well, I still have my Tektronix Xterm that is really a crap, nobody wants to buy, and I haven't really understood why I have to pay to trash it away, it's VGA 1026x768x8bit, it does not support ssh , it has only telnet , and it's not true color, it's poor 8 bit, so you can't enjoy a true porn, but ... but … it has XDM , and Irix loves it, so it's something like Zen , when you code something it's because the purpose is to enjoy the computer poetry , the way you are contributing in increasing the entropy of the universe, but I hate the noise and the heat, but I love my Octane Heater!, and I like the way that machine is contributing in increasing the heat, but I hate the heat, so I enjoy remotely on the console through the TekTerm

uunix wrote: I have 2 but no apple made up specific power leaded.

My quad G5 doesn't seem to use a made up connection - it's a standard C19 connector (okay, that's not common in home computers, but they did it to keep people from using super cheap power cords with that monster of a power hog).

ClassicHasClass wrote: Bah. Try a Quad G5.

Why not both? Come winter I'll have my Octane running again, my Sunblade running again, my BOINC cluster running again.....

Actually, the LCS for CPU one in my Quad G5 has failed, so it won't be running this winter (this makes me sad. If you know some easy way ot get this working again, PM me. I think fluid is...not so fluid any longer).

Call me crazy but my Octane runs almost 24/7, it's also near a high velocity fan that blows the hot air out the window and prevents that hot air from being recycled as well as keeping the room temperature livable.

chicaneuk wrote:

ClassicHasClass wrote: Bah. Try a Quad G5.

I just read the other day that the coolant used in those late liquid cooled G5's is especially toxic. I did have one for a while, but luckily it didn't leak - gave it away to another Nekochanner a couple years back.

No, not particularly. It's really just high grade radiator coolant (Delphi A2, to be exact; Delphi 151 should be equivalent). Higher performance coolants can be substituted if desired. Apple has the MSDS and it's just the usual expected PEG-in-water solution.

armanox wrote:

ClassicHasClass wrote: Bah. Try a Quad G5.

Why not both? Come winter I'll have my Octane running again, my Sunblade running again, my BOINC cluster running again.....

Actually, the LCS for CPU one in my Quad G5 has failed, so it won't be running this winter (this makes me sad. If you know some easy way ot get this working again, PM me. I think fluid is...not so fluid any longer).

What type, the Cooligy v2 or the Delphi v1? Although Delphi systems were the sucky ones in earlier LCSes, in the Quad the Delphi is the preferred assembly.

I have some notes on dealing with the LCS here . You can either find an entire assembly and redo it (as I do), or there is a way to refurbish the coolant; I have it linked.

ClassicHasClass wrote: No, not particularly. It's really just high grade radiator coolant (Delphi A2, to be exact; Delphi 151 should be equivalent).

Should run straight water. Ethylene glycol is bad for the world and doesn't do anything good unless your house gets below 32* F. Anti-freeze has absolutely no benefits in transferring heat over straight water. Since the blocks on cpu's are not cast iron, I don't see any advantages in rust-inhibiting, either. Copper doesn't rust much.

Higher performance coolants can be substituted if desired.

There are no "higher-performance coolants." Water is just as good as the best of them. It just has the small drawback of freezing at 32* F.

No racecars run coolant. No race bikes, either. It's not allowed, and it's not a problem. When a G5 makes 600 hp I'd start to get concerned about the 'performance' of the coolant.

Shouldn't use it. It's bad for the world. Ethylene glycol is not good for humans or small dogs.

ClassicHasClass wrote:

armanox wrote:

ClassicHasClass wrote: Bah. Try a Quad G5.

Why not both? Come winter I'll have my Octane running again, my Sunblade running again, my BOINC cluster running again.....

Actually, the LCS for CPU one in my Quad G5 has failed, so it won't be running this winter (this makes me sad. If you know some easy way ot get this working again, PM me. I think fluid is...not so fluid any longer).

What type, the Cooligy v2 or the Delphi v1? Although Delphi systems were the sucky ones in earlier LCSes, in the Quad the Delphi is the preferred assembly.

I have some notes on dealing with the LCS here . You can either find an entire assembly and redo it (as I do), or there is a way to refurbish the coolant; I have it linked.

That looks like it says Delphi to me (see https://lh3.googleusercontent.com/9x6271zC4EYWv2IHLEfBpj1fN3bz5ocbPDHN-8qQdwA=w1306-h979-no )

Yep, that's a Delphi.

There are a few people who have run the G5 on water, but it needs silver elements in there to retard microbial growth.

hp c8000 and rx2600 are great heaters, dreadbit as owner of both will approve this

The ethylene glycol isn't needed if it's not going to be below 1C or above 90C, but the anticorrosion ingredients in auto antifreeze are a good thing, especially if you have mixed metal engines.

since you guys are talking Quad G5s in here, I may as well post this my buddy did a few months back. it has a bad core now and there's a replacement sitting back home in CO, but he's away in NC and has been for a few months so he hasn't had a single chance to make the proper video for this...

originally this G5 was sitting in CT, it came to me, and I shipped it over to him. and then this happened to it. I don't know what he used for coolant, but he replaced all the o-rings and will be making kits to sell for a few bucks each for others to do the same with theirs (since he got a pack of 500 of the proper ones for peanuts)

https://www.youtube.com/watch?v=EF7xIHKx6As

he has a lot of SGI hardware too including a Fuel and an O2 (fastest they made I think?) and some other stuff.
the video update is going to show the process of fixing the leaking issue and what to use for o-ring replacements as well as cleaning out all the old fluid for new stuff. so, your PPC blastfurnaces can run reliably this winter and not pee all over the place!