Part 1-Temp's With and With-Out Shrouds - Page 7 - Overclock.net

Hondacity · 01-27-09

i'm not sure of my analysis, anybody agree with my numbers?

**ira-k** · 01-27-09

Quote:

Originally Posted by Hondacity

my notes on the review...regarding push pull with and without shrouds...

water in-ai rout (p-p with shrouds) 0.85C
water in-air out(p-p w/out shrouds) 1.45C

is this the correct difference?

- an improvement of 0.6C

Well actual CPU temp was with shrouds..CPU temp is 23.375C below room ambient. Ambient 29.375C

With-out shrouds...Average temp is 17.875C below ambient which is 2.375C hotter then push-pull with shroud.

A 2.375C hotter CPU temp on push-pull with out shrouds. Thats with a fairly light 320W load.

As you can see from the actual CPU temp's even a small gain in rad out temp's equates into several C better CPU temp's.

This test actually pretty well jibes with Martins later testing with a lower fin per inch rad (XSPC) He found that push worked better then a pull on LFPI rads. A 20-30% gain ion rad out temp's is great. t really surprised me that my probes were as accurate as they were. Fan Push vs Pull vs TFC Shroud Results

It really surprised me that my probes were as accurate as they were.

On one of the tests I had a flyer, probably a flapping tape probe on the air in. But thats why I always like to validate whatever I do, instead of just throwing it out there.

If you really want to learn about the effects of using shrouds on various rad's take a look at Martins rad calc's.Radiator Thermals and Radiator Calculators - Martin .They have a variance that you can add a shroud to your rad out temp's, just use a .2 variance. Just remember rad out to ambient delta has a direct effect on CPU temp's, but multiplied, as in the above example. Thats just with a shroud on one side.

Thats one of the best things a new guy can play around with to get an idea of fan,rad relationships. Rads and the fans you use are one of the main tweaks you can do to WC'ing loops. All the blocks are with-in a block mount of each other. That may change on the i7, I really think the V2 Fuzion will be the best for them due to there configuration.

nub · 01-27-09

Has anybody tested the effect of shrouds on air coolers like a TRUE or Noctua?

Hondacity · 01-27-09

Quote:

Originally Posted by ira-k

Well actual CPU temp was with shrouds..CPU temp is 23.375C below room ambient. Ambient 29.375C

With-out shrouds...Average temp is 17.875C below ambient which is 2.375C hotter then push-pull with shroud.

A 2.375C hotter CPU temp on push-pull with out shrouds. Thats with a fairly light 320W load.

As you can see from the actual CPU temp's even a small gain in rad out temp's equates into several C better CPU temp's.

This test actually pretty well jibes with Martins later testing with a lower fin per inch rad (XSPC) He found that push worked better then a pull on LFPI rads. A 20-30% gain ion rad out temp's is great. t really surprised me that my probes were as accurate as they were. Fan Push vs Pull vs TFC Shroud Results

It really surprised me that my probes were as accurate as they were.

On one of the tests I had a flyer, probably a flapping tape probe on the air in. But thats why I always like to validate whatever I do, instead of just throwing it out there.

If you really want to learn about the effects of using shrouds on various rad's take a look at Martins rad calc's.Radiator Thermals and Radiator Calculators - Martin .They have a variance that you can add a shroud to your rad out temp's, just use a .2 variance. Just remember rad out to ambient delta has a direct effect on CPU temp's, but multiplied, as in the above example. Thats just with a shroud on one side.

Thats one of the best things a new guy can play around with to get an idea of fan,rad relationships. Rads and the fans you use are one of the main tweaks you can do to WC'ing loops. All the blocks are with-in a block mount of each other. That may change on the i7, I really think the V2 Fuzion will be the best for them due to there configuration.

here's the thing, are the cpu temp probes..good really in sub zero temperatures?

**ira-k** · 01-27-09

Quote:

Originally Posted by nub

Has anybody tested the effect of shrouds on air coolers like a TRUE or Noctua?

Not that I know of, not with any data to support it anyway. Why are you going back to a HSF?

88EVGAFTW · 04-28-09

Ok, i tried to read thru all the testing data, but still aren't too clear, I have a rad on the back of my case, and bought 2 broke 120x38mm fans to use as shrouds, will this yield lower temps by a few ºC? if it will, cool, if not, Oh well, they will act as a rad box so I can route the lines better.

88EVGAFTW · 04-29-09

? bump

nub · 04-29-09

Quote:

Originally Posted by AMABFKCUO

Ok, i tried to read thru all the testing data, but still aren't too clear, I have a rad on the back of my case, and bought 2 broke 120x38mm fans to use as shrouds, will this yield lower temps by a few ºC? if it will, cool, if not, Oh well, they will act as a rad box so I can route the lines better.

Use Martin's radiator calculator to see what effect the use of shrouds will have.

**ira-k** · 04-29-09

Quote:

Originally Posted by AMABFKCUO

Ok, i tried to read thru all the testing data, but still aren't too clear, I have a rad on the back of my case, and bought 2 broke 120x38mm fans to use as shrouds, will this yield lower temps by a few ºC? if it will, cool, if not, Oh well, they will act as a rad box so I can route the lines better.

It should depending on how much of a load you have on your rad, the higher the load the more shrouds will help. I can usually knock off a couple of C at least with them.

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Part 1-Temp's With and With-Out Shrouds

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