Fastest, RELIABLE used Mac G5 Quad?

romko23 wrote:

Hi,

I do pray tell you do get the single pump, as you will enjoy your Quad G5 a lot more than if it were the dual pump. I would ASK to make sure your pump is single and not dual.

Hi romko 23,

Thanks for your continued interest and your input. Perhaps I have not expressed myself clearly: I do NOT have the option of asking, demanding or "making sure" I get a single pump. I already bought the machine some three weeks ago from a private party, not a commercial reseller. The machine has whatever it has, period. (Maybe I'll be able to take a picture of the guts of the Quadand post an image here.)

"The shop" where I went and picked up the machine this afternoon merely swapped the enclosure for me, as the one the machine originally came with got very badly damaged allegedly during shipping. Images showing damage to the front on the enclosure are below; the back was similarly damaged.

Amazingly the innards were fine, and I subjected them to rigorous tests before deciding to have the enclosure replaced.

The shop just charged me for the labor costs, as I provided the replacement enclosure on my own. It's a very small, independent shop in Carmichael, California, where a former Apple employee, now an independent IT free-lancer, happens to work. They have no stake in whatever the machine came with. They did an outstanding job and also installed the graphics card and the SCSI card for me

I spoke to this guy today when I picked up my Quad, and he tells me that it indeed has the Delphi pump, and that, in his opinion based on experienced gained at Apple, that is a very, very good thing. Evidently Apple went back to Delphi during the final months of production because "the Panasonic pumps did not hold out as well as it had been hoped".

As I said, this guy has no financial stake in my purchase of the machine (from an out-of-state private audio and video guy who had just upgraded to a current multi-core Mac Pro). If anything, he could have used the opportunity afforded by my question following your input to incur more labor costs by suggesting putting in a Panasonic. He very strongly and adamantly advised against that, but he was in a position actually to get me one, sell it to me, and charge me for installing it. That he did not, seems pretty persuasive to me.

The bottom line is that I can't do a thing about the confounded pump, and I'll just keep my fingers crossed.

Thanks again, and all I can do is hope for the best.

Additionally, I have to consider that this machine has now been working for a tad over five years without the LCS malfunctioning, according to the former owner—who was not even aware that he had a liquid-cooled machine all these years. It just worked. 😝

romko23 wrote:

…The company Mike's Tech Shop in NY told me the single pump is much more reliable than the dual as he told me that DELPHI themselves were not a great LCS manufactuer.

That part is debatable, sorry, but irrelevant at this point. Delphi is considered by many to be a reliable supplier of cooling systems for a variety of industries. No need to take the word of a single tech somewhere in NY.

I'm not going to argue with you, as it would be like two bald-headed men fighting over a comb, as there's nothing I can do anout what pump my Quad has. It's that simple.

I do thank you for your interest and for your generosity with your time.

BDAqua wrote:

iStat only reports one pump RPM! 🙂

That's more than a little cryptic for the uninitiated among us. 😐 Can you give me a hint, please?

Thanks in advance.

BDAqua wrote:

…I surmise it means there's only one pump to report! 🙂

Actually, the part I was unclear about was "iStat". Off to Google it… 😎

Never mind. I just learned iStat is a Dashboard widget, and I have Dashboard permanently disabled in all my boot volumes, same as Spotblight. 😎

BDAqua wrote:

Try iStat Menus…

http://download.cnet.com/iStat-Menus/3000-2086_4-10786476.html

Oooooh! That looks most interesting and useful. Thanks! 🙂

Here's a link to a post in an old thread—started in 2006, revived more than once, active one year ago, and still relevant today IMHO—that provided useful insights into the issue. No need to read the whole thread, but this particular post is worth reading in the context of our present thread here.

http://forums.macrumors.com/showpost.php?p=9294422&postcount=17