PetDMC-

The chevy 75 will take two 120 MM fans as will the one I am using- ford econoline 85 heavy duty. Chevy has a 5/8" and a 3/4" inlet pipe the ford has both 5/8" another reason I selected it.

I chopped off the 5/8" nubs and soldered on 1/2" copper plumbing couplings with ease. They fit real nice! If you are going to use JB Weld and insert 1/2" hose barbs (brass) inside the heater core inlets the Chevy will work fine.

Oh, I can't tell you the exchange rate on the US / Canadian dollars. If you send me oh..., $1000.00 Canadian, I take it to the bank and let you know how many Yankee bucks I get in exchange! I am always here to help. :D

Jim

Long time OC'er, first time here.

PetDMC, I bought my Chevette core at a local wrecker for $20.

It has two 1/2" pipes after a simple mod. One is 5/8" or so, but it's just flared from the 1/2" pipe. Cut off the larger part, and you have 1/2" in and out. (@ 90 degrees to the core)

The only bad thing about wrecker cores is the CRAP that's in a 15 year old cooling system. I took it to the car wash, and pressure washed the fins and tanks. Then I ran my pump through it, taking turns on inlet/outlet, while shaking the thing...sand, rust etc. ran out of it for awhile, but it's good as new now.

The crap inside the heater core would worry me. Can you really get all the $&@t out of used cores?

Jim

I'm confident that mine is cleaned out. No surprises in the res.:D

Also wanted to add, the Chevette core will work with 4 80mm's 98% perfectly.My rad is mounted vertical. I have 2 at the top, side by side(exact width), and the bottom one(I need to get another 80 one of these days)is just hanging over the bottom about 10 mm.

The reason for 4(ok, 3:p ) 80 mm's...I use quiet no name case fans. I originally tried my sunon 120, with a duct, but the temps are the same, and the noise is gone this way. The 4th fan when I finally get around to getting it is only gonna help me too.

an aircompressor is seriously the best way. Also, if you block up the other outlet you can leak test it

Re: Hit by a ton of bricks
 

Problem solved, bad camera angle ;) As others said, from that first pic it looked like the screws on that bracket went straight into the pipe.


As far as wcprset - what motherboard do you have? If it's a KT266a based board, the two bits are bit 1 of reg 0x95 (HALT detect) in combination with bit 7 of reg 0x92 (STPGNT# Detect). Both bits need to be set (be 1's).

* rummages thru old links *

Here's a link that discusses the whole thing and shows you screen pics of wcpredit and wcprset programs since you don't seem familiar with them :)

Or, you can just get CPUCool from Podein's site and try it without having to mess with wcpredit/set if you are leery of diddling with it yourself.

You probably want to test it first on your system - depending upon your motherboard and sound card combo it may cause stuttering in your sound. (mainly audigy sound cards) Note also that some people have stability problems usings CPUCool (or at least the early versions of it). This is caused by an issue in the Athlon when using 0.5 multiplier settings (they don't wake up reliably from a HALT state with 0.5 multipliers). The fix for that is an even multiplier (i.e. 9.0 10.0 11.0 12.0)

Betters Jim's offer, will do it for 500 Canadian :=P
 

Let your fingers do the walking, lol. Seriously, call them on the phone and find out. Save yourself a bus trip. Heck, call the place 25km away too, you might find the price difference enough to make that longer bus trip.


* sighs * No But the temp difference isn't worth a large $$$ difference, nor is it worth taking a chance on an unknown, used heater core IMO. However, if you had a choice between two that were within a couple dollars of each other in price and were the same in all other aspects, then take the copper finned. The reason aluminum is used for fins is for weight reduction and ease of manufacturing.


BTW, send those 500 Canadian dollars to the following address:

U-R-Screwed
1 Naive Ave.
Loserville, Md. 90210

I'll let you know how many US dollars I get for it :evilaugh:

EMC2

I have a MSI K7 Master an Amd 761 chipset board. Here is a link to the tweak I wanted to try but chickened out, was totally sure as to what I was doing, so I stopped.

Go here to see TWEAK

Jim

here are some pics (3)

2

III

Interesting.

Should work. Will 80 MM fans fit on this thing? What is the short side dimension, matter of fact what is length and width where fans would set?

Jim

12 1/2" x 2 3/4" x 4"

Yeah-
(4) 80 MM fans wil work, they are 3 1/8" square. Four across no problem and a heavy 3/16" over hang top and bottom.

Not bad!

Jim

and the haeter core only costs $18(USD) or $23(CDN) :D

i'm gonna get it and clean the crap outta it :cool:

is it ok to use compressed air (like at the gas station) to clean out the inside?:confused:

I never cleaned one, but I assume at some point you would want to flush it with something.

Jim

what about 92mm fans? 4 of them would fit without a problem either. As for cleaning it, use an air compressor to get most of the big stuff out, then a radiator wash type product to clean the smaller stuff out

Jim - that's basically the same tweak as is used on VIA chipsets, just different registers and values for the AMD chipset. Same comments, same cautions. The fact of the matter is you can NOT hurt anything by trying it. Worst thing that would happen is your system become unstable and crash. Reboot, don't do it again ;) CPUCool should also work with your motherboard.


PetDMC - point of reference, radiator repair shops use a heavy lye mixture to clean out radiators and heatcores. You can pick some up at your local grocery store most likely. Just be sure to hook a hose up to it (garden hose) and run pure water through it for 20 or 30 minutes afterwards if you use the lye to make sure you flush it completely out. (To clean it out with the lye, fill it with the lye mix and let it sit for 20 mins or so, shaking it every so often. But be careful, lye is quite caustic and if you get it on your skin, it can burn it. Wear rubber gloves and long sleeve shirt, avoid getting it anywhere near your eyes, and cap the inlet/outlet when you are shaking it so you don't splash yourself with it.) You can also use the lye mix with a scrub brush to clean the outside ;)

EMC2-

The problem is that I don' t understand exactly how to use the wpcredit and the wpcrset programs.

If you look at the link I provided above there is a "Wpcrset Register Edit" box illustrating values inside boxes labeled: "bus" "device" "function" "register" and "data". Well, I was unable to get to this point and I really don't know what all this stuff is. Also, it is apparant that more than one program is being used to change values and I am not certain as to which program does what and in what sequence.

So I am at the bottom level here, that's why I was trying to locate the Forum that had the topic "Wpcredit" so I could read there a while to gather some understanding.

I comprehend the basics of simply changing values in the Register. But I would like to know a little more about the use of these programs. It like anything else which you approach for the first time, it always looks harder than it really is, but you don't realize it until you have been through it. Heck I think watercooling is a walk in the park now, 5 months ago I thought you guys were all insane to try it!

Thanks for your patience and help.

Jim

This is the funniest (in a schizophrenic way) thread I have ever read...2 coherent comversations going on at once...

I bought a chevette core brand new at Can Tire for $50. K&H rad says they got a whole bunch of brand new chevette cores for the same price. I wanted one that would fit inside my case, but since you are gonna hang outside, take what you can get, and as big as you can get...
http://www.ariel.cs.yorku.ca/~cs981024/b8.jpg

Twitchie-
That Chevette core is a perfect size. If I ever figure out a way to NOT add warmed air inside my case and/or reverse air flow I would probably go with one for a new water cool setup. The water block, did you build it?

Now, what can you tell me about "wpcredit" LOL!

Jim

Hey Jim!
 

Go look in the "Overclocking and General Techo Babble" forum for your Wcpredit info ;) (the Babble part of that forum title is very appropriate in this case) :D

EMC2-
Thanks for the info, how did you know "Babble" was up my alley.

Jim

NOT a morning person
 

Jim - actually I was referring to the post I put over there for you (i.e. my writing). Besides being done shortly after waking up, it was done in a super rush before I had to head off to work ;) Almost afraid to go read it now that I'm awake, LOL.

So...does WPcredit work on heater cores now???? I'm so confused.

Heavy Equip-
How exactly did you set up your Chevette heater core with 3 80MM fans?
Jim

my guessing is two on one side with a duct from 160x80 to 120x120, then just one on the otherside

Actually, it's a work in progress.

The fans are 2 side by side, and one underneath...like an upside down pyramid...all sucking through the rad.

Fan Fan
Fan

My ducting is for 4 fans, and it's partly finished, but it's been on hold for awhile, while I decide on new case/build case/whatever. (OK, and the 10 hour days at work plus 90 minute drive each way is killing my motivation :D) On the "to-do" list though. And after 3 different trips down to Infonec in the past couple months (8kha+ RMA runs:rolleyes: ), I still forgot to get the 4th fan. ("Cyber Cooler" case fans. Guesstimating 18-20 cfm. Very quiet at 12V, and I had to check them when I tried them at 7V, to make sure they were infact on.lol)

I'm hoping the 4th fan/duct combo, and a switch to AS3 will drop me a couple more C.:drool: I'm at 36C right now with UD Think running...it only hits 40 when I try to "kill" it. (Think, 5 apps of Toast(high priority), and media player>MP3's...my torture test)


Gee...that ought to answer your question. lol

that's where i bought my Epox 8K7A
was it near PIA?

OT: what was ur 5v with that MB???
mines is around 4.57 :/ but i'm getting ready for a mod :D

heh, hurry up and by the 4th fan :P I seriously doubt AS3 will help that much though