Power sloution for two 172W pletiers for less than $200?? - Page 4

Brad · 12-28-2001, 02:21 AM

yes, but how much would a new one cost?

beav · 12-31-2001, 10:36 PM

Have you guys seen these?
http://www.ioport.com/peltiers.html

I don't know much in the electronics department. Would these be sufficient?

Brad · 01-01-2002, 12:00 AM

156w 48mm pelts aren't too popular, cause a 172w 40mm concentrates the 'cold' much more. For those in the extreme crowd, 172w 40mm or 220w 48mm pelts are the only options

resago · 01-05-2002, 01:27 AM

Got 1 of 2 transformers. I'm getting 17.5V no load.

no fires or explosions either!

Butcher · 01-05-2002, 02:43 AM

Damnit that thing is huge

You should get a digital multimeter too :P
17.5V no load, you should be able to pull 15V loaded +/- 1V

Brad · 01-05-2002, 06:26 AM

are you sure that green thing isn't an explosion? :P

btw, I presume thats the 13.5v 20a one?

resago · 01-05-2002, 10:01 AM

yup, its the 13.5V model. At first I wired up the primary and secondary backward and MELTED my first outlet plug

after reversing wires, everything is sweet.

the green thing is a 12V LED, at 17 volts it starts to cook the green film off

but I needed something to drain the capacitors after I shut the thing off.

gonna order the second transformer soon, it will mount up right beside the first one.

BTW this stuff is fun.

Butcher · 01-05-2002, 11:24 AM

You should use a real led not those pansy 12V things

And don't you use fuses? I have never melted an outlet plug ever, you need a fuse to stop that sort of thing

Organized_Chaos · 01-05-2002, 02:52 PM

Just curious, what happens if your sitting next to it and one of those caps blow. I'm no expert but I've seen cap blow and those look like they could blind someone.

Butcher · 01-05-2002, 05:27 PM

Duck and cover

Basically you get showered with flying bits of burning hot metal and electrolyte, it's not fun

Luckily caps rarely explode unless you connect them backwards or put far too much voltage through them.

resago · 01-07-2002, 11:01 AM

Bwah hah hah.

I might consider a metal box to put over the caps.

I'm looking into some fuses too

resago · 01-07-2002, 02:38 PM

I'm going to put the ps_ok line on 2 relays and 2 temp switches, if anything fails, the computer shuts down.

I'm thinking of also using a momentary switch to power a relay to the pelt power supply, after its on, the pelt PS will power the relay and keep it on, if a cap blows, etc.., it shuts itself down.

now where did I put all those relays??:shrug: I'm sure my car has some that it doesn't really need

Brad · 01-07-2002, 09:46 PM

where are you going to put the temp switches, under the core, or on the side of the coldplate?

resago · 01-08-2002, 09:36 AM

hmm, I had considered just on the waterblock, I hadn't though about a pelt failure, I was thinking pump failure. the relays would protect against pelt PS failure.

would what the relation of temp be between block and cold plate if a pelt failed. though it will be protected somewhat since each block will be running 2 pelts.

Must think some more.

the dual pelts should provide enough protection if one should fail, I would notice the problem by the fact that the CPU is no longer running below 0C. Not catastrophic by any means

anyone have any thoughts?

Brad · 01-08-2002, 02:03 PM

just put it one on either side of the coldplate. So if one pelt fails, you'll still see it

resago · 01-08-2002, 02:19 PM

but it won't react unless both pelts fail, cause even 1 172watt pelt will certainly keep it under 57C.

I'll probly put one on each cold plate anyway just cause MECI has a minumum order thing of $20.

I'm trying to figure out how to cut off the Pelt PS after I shutdown the computer.

it can't be a simple relay, cause the ps_ok line will rely on the Pelt PS being on. So I can't just run a relay off the 12V of the computer to keep the Pelt PS on.(IE, pelt PS is on first)

Im gonna open up mspaint and figure this out. I think I've got it in my head, just need to make sure.

ok, got it, the grey blocks are relays, the green circles are temp switches.

this setup should keep the kiddies from turning something on with out the other.

I'll have to hold the pelt PS button in and then hit the computer on button to get everything up.

Worship my mad mspaint skilz

Brad · 01-08-2002, 09:02 PM

yeah, have the switch in the ps_ok line, and have that turn off relays for the pelt psu.

resago · 01-14-2002, 10:27 AM

Brad · 01-14-2002, 06:13 PM

nice pics man.

http://www.mpja.com/product.asp?product=13135+PS

what about 4 of those. you'd get 20v 26a, which is more than enough.

resago · 01-16-2002, 11:01 AM

that would only power 2 172watters, I'm going for 4 total system. dual xp's

Brad · 01-16-2002, 02:06 PM

there are quite a few psu's at that place that are 50a or more on the 5v rail

resago · 01-22-2002, 10:00 AM

oh great, I order the 13.5V 20Amp transformers, and now swiftec carries the 220W pelts!!!! ARGGHHH!!!!

ok, so I have 2 options.

1) sell the linear powersupply and get a switching one, 15V at 44Amps.

2) buy a 3rd transformer and rectifier and tie it in to the system.

#Rotor · 02-15-2002, 11:27 PM

And for those of you that want to be able to set your voltage to whatever you want......

The TEC-Driver

Brad · 02-16-2002, 01:46 AM

resago, buy a 3rd one, it's just a cool thing to do

actually, I'm thinking about speed controllers for RC cars, some of those can be run at 200A or some other huge value, most are designed for 7.2v - 8.4v range, but some for dual motors are designed for 14.4v - 16.8v

resago · 04-10-2002, 12:19 PM

ok, I'll buy a third one

I also acquired another case, its an old compaq prolient server tower. It had a ppro 200 on an EISA MB.
it has room to put the power supply inside along with a 9x6 heatercore.

pics coming soon.

I'm Glad DD finally got 226Watt Pelts

12-31-2001, 10:36 PM	#77
beav Cooling Neophyte Join Date: Aug 2001 Location: Danville Posts: 96	Have you guys seen these? http://www.ioport.com/peltiers.html I don't know much in the electronics department. Would these be sufficient? __________________ What a chump.

01-05-2002, 01:27 AM	#79
resago Cooling Savant Join Date: Mar 2001 Location: state of denial Posts: 488	more pics Got 1 of 2 transformers. I'm getting 17.5V no load. no fires or explosions either!

01-05-2002, 02:43 AM	#80
Butcher Thermophile Join Date: May 2001 Location: UK Posts: 1,064	Damnit that thing is huge You should get a digital multimeter too :P 17.5V no load, you should be able to pull 15V loaded +/- 1V __________________ Once upon a time, in a land far far away...

01-05-2002, 11:24 AM	#83
Butcher Thermophile Join Date: May 2001 Location: UK Posts: 1,064	You should use a real led not those pansy 12V things And don't you use fuses? I have never melted an outlet plug ever, you need a fuse to stop that sort of thing __________________ Once upon a time, in a land far far away...

01-05-2002, 05:27 PM	#85
Butcher Thermophile Join Date: May 2001 Location: UK Posts: 1,064	Duck and cover Basically you get showered with flying bits of burning hot metal and electrolyte, it's not fun Luckily caps rarely explode unless you connect them backwards or put far too much voltage through them. __________________ Once upon a time, in a land far far away...

12-28-2001, 02:21 AM	#76
Brad Thermophile Join Date: Oct 2001 Location: Nuu Zeeelin Posts: 3,175	yes, but how much would a new one cost?

01-01-2002, 12:00 AM	#78
Brad Thermophile Join Date: Oct 2001 Location: Nuu Zeeelin Posts: 3,175	156w 48mm pelts aren't too popular, cause a 172w 40mm concentrates the 'cold' much more. For those in the extreme crowd, 172w 40mm or 220w 48mm pelts are the only options

01-05-2002, 06:26 AM	#81
Brad Thermophile Join Date: Oct 2001 Location: Nuu Zeeelin Posts: 3,175	are you sure that green thing isn't an explosion? :P btw, I presume thats the 13.5v 20a one?

01-05-2002, 10:01 AM	#82
resago Cooling Savant Join Date: Mar 2001 Location: state of denial Posts: 488	yup, its the 13.5V model. At first I wired up the primary and secondary backward and MELTED my first outlet plug after reversing wires, everything is sweet. the green thing is a 12V LED, at 17 volts it starts to cook the green film off but I needed something to drain the capacitors after I shut the thing off. gonna order the second transformer soon, it will mount up right beside the first one. BTW this stuff is fun.

01-05-2002, 02:52 PM	#84
Organized_Chaos Cooling Neophyte Join Date: Jan 2002 Posts: 3	Just curious, what happens if your sitting next to it and one of those caps blow. I'm no expert but I've seen cap blow and those look like they could blind someone.

01-07-2002, 11:01 AM	#86
resago Cooling Savant Join Date: Mar 2001 Location: state of denial Posts: 488	Bwah hah hah. I might consider a metal box to put over the caps. I'm looking into some fuses too

01-07-2002, 02:38 PM	#87
resago Cooling Savant Join Date: Mar 2001 Location: state of denial Posts: 488	I'm going to put the ps_ok line on 2 relays and 2 temp switches, if anything fails, the computer shuts down. I'm thinking of also using a momentary switch to power a relay to the pelt power supply, after its on, the pelt PS will power the relay and keep it on, if a cap blows, etc.., it shuts itself down. now where did I put all those relays??:shrug: I'm sure my car has some that it doesn't really need

01-07-2002, 09:46 PM	#88
Brad Thermophile Join Date: Oct 2001 Location: Nuu Zeeelin Posts: 3,175	where are you going to put the temp switches, under the core, or on the side of the coldplate?

01-08-2002, 09:36 AM	#89
resago Cooling Savant Join Date: Mar 2001 Location: state of denial Posts: 488	hmm, I had considered just on the waterblock, I hadn't though about a pelt failure, I was thinking pump failure. the relays would protect against pelt PS failure. would what the relation of temp be between block and cold plate if a pelt failed. though it will be protected somewhat since each block will be running 2 pelts. Must think some more. the dual pelts should provide enough protection if one should fail, I would notice the problem by the fact that the CPU is no longer running below 0C. Not catastrophic by any means anyone have any thoughts? Last edited by resago; 01-08-2002 at 09:40 AM.

01-08-2002, 02:03 PM	#90
Brad Thermophile Join Date: Oct 2001 Location: Nuu Zeeelin Posts: 3,175	just put it one on either side of the coldplate. So if one pelt fails, you'll still see it

01-08-2002, 02:19 PM	#91
resago Cooling Savant Join Date: Mar 2001 Location: state of denial Posts: 488	but it won't react unless both pelts fail, cause even 1 172watt pelt will certainly keep it under 57C. I'll probly put one on each cold plate anyway just cause MECI has a minumum order thing of $20. I'm trying to figure out how to cut off the Pelt PS after I shutdown the computer. it can't be a simple relay, cause the ps_ok line will rely on the Pelt PS being on. So I can't just run a relay off the 12V of the computer to keep the Pelt PS on.(IE, pelt PS is on first) Im gonna open up mspaint and figure this out. I think I've got it in my head, just need to make sure. ok, got it, the grey blocks are relays, the green circles are temp switches. this setup should keep the kiddies from turning something on with out the other. I'll have to hold the pelt PS button in and then hit the computer on button to get everything up. Worship my mad mspaint skilz Last edited by resago; 01-08-2002 at 02:50 PM.

01-08-2002, 09:02 PM	#92
Brad Thermophile Join Date: Oct 2001 Location: Nuu Zeeelin Posts: 3,175	yeah, have the switch in the ps_ok line, and have that turn off relays for the pelt psu.

01-14-2002, 10:27 AM	#93
resago Cooling Savant Join Date: Mar 2001 Location: state of denial Posts: 488	got the 2nd transformer hooked up

01-14-2002, 06:13 PM	#94
Brad Thermophile Join Date: Oct 2001 Location: Nuu Zeeelin Posts: 3,175	nice pics man. http://www.mpja.com/product.asp?product=13135+PS what about 4 of those. you'd get 20v 26a, which is more than enough.

01-16-2002, 11:01 AM	#95
resago Cooling Savant Join Date: Mar 2001 Location: state of denial Posts: 488	that would only power 2 172watters, I'm going for 4 total system. dual xp's

01-16-2002, 02:06 PM	#96
Brad Thermophile Join Date: Oct 2001 Location: Nuu Zeeelin Posts: 3,175	there are quite a few psu's at that place that are 50a or more on the 5v rail

01-22-2002, 10:00 AM	#97
resago Cooling Savant Join Date: Mar 2001 Location: state of denial Posts: 488	*%^#%@!!!** oh great, I order the 13.5V 20Amp transformers, and now swiftec carries the 220W pelts!!!! ARGGHHH!!!! ok, so I have 2 options. 1) sell the linear powersupply and get a switching one, 15V at 44Amps. 2) buy a 3rd transformer and rectifier and tie it in to the system. Last edited by resago; 01-22-2002 at 10:08 AM.

02-15-2002, 11:27 PM	#98
#Rotor Cooling Savant Join Date: Feb 2002 Location: Dione, sector 4s1256 Posts: 852	And for those of you that want to be able to set your voltage to whatever you want...... The TEC-Driver

02-16-2002, 01:46 AM	#99
Brad Thermophile Join Date: Oct 2001 Location: Nuu Zeeelin Posts: 3,175	resago, buy a 3rd one, it's just a cool thing to do actually, I'm thinking about speed controllers for RC cars, some of those can be run at 200A or some other huge value, most are designed for 7.2v - 8.4v range, but some for dual motors are designed for 14.4v - 16.8v __________________ 2x P3 1100's at 1400, Abit VP6, 2x Corsair 256mb PC150 sticks, 20gb 'cuda ATA-III, 2x 40gb 'cuda ATA-IV in raid 0. 20" Trinitron. No fans 2x 2400+ at 2288mhz (16.0 x 143), Iwill MPX2, 2x Kingmax PC-3200 256mb sticks, 4x 20gb 60gxp in Raid 5 on a Promise SX6000. Asus Ti4200 320/630. Cooled by Water

04-10-2002, 12:19 PM	#100
resago Cooling Savant Join Date: Mar 2001 Location: state of denial Posts: 488	ok, I'll buy a third one I also acquired another case, its an old compaq prolient server tower. It had a ppro 200 on an EISA MB. it has room to put the power supply inside along with a 9x6 heatercore. pics coming soon. I'm Glad DD finally got 226Watt Pelts

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