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Old July 15, 2008, 06:28 AM
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Default Thermalright Ultra-120 A & SI-128 SE Review @ X-bit

X-bit labs reviews the TR Ultra-120A & the SI-128 SE. The results are quite surprising.

Without giving too much away... let's just say...i want an SI-128 SE now(i already have a TRUE )

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Old July 15, 2008, 06:49 AM
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The processor Vcore was increased to 1.5625V in the mainboard BIOS (1.53~1.54V according to the monitoring utility).
They want to kill their QX9650 or what? And it's way too much voltage for 3.9GHz - mine needs 1.47V for 4.2GHz stable...

I'm surprised thought by the performance of the SI-128, specially being a downdraft HSF.
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Old July 15, 2008, 02:54 PM
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Originally Posted by 3.0charlie View Post
They want to kill their QX9650 or what? And it's way too much voltage for 3.9GHz - mine needs 1.47V for 4.2GHz stable...

I'm surprised thought by the performance of the SI-128, specially being a downdraft HSF.
Yeah..impressive. I've loved my XP-120, but it's nowhere near as good as my TRUE. The SI-128 SE is, and cools mobo components as well. I also like that a side-panel fan can blow fresh air towards the HS's fan... or better yet, run a duct from the side-panel fan straight to within ~1/4" of the HS.. that'll work very nicely.
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Old July 15, 2008, 03:18 PM
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My XP-120 is great too. Run it on my server, it is never an issue.
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Old July 15, 2008, 04:14 PM
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Originally Posted by 3.0charlie View Post
They want to kill their QX9650 or what? And it's way too much voltage for 3.9GHz - mine needs 1.47V for 4.2GHz stable...

I'm surprised thought by the performance of the SI-128, specially being a downdraft HSF.
I put (1.60v@BIOS..1.5625@CPU-Z) into my E8400, cooled by my TRUE(and many 120mm fans..open bench) for hundreds of benches(Forum Wars 08) and for 2-3 weeks, which ended around mid-April...and she's still running like a top. I believe that too much VTT can kill the 45nm chips..not "just going over 1.40v".
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Old July 15, 2008, 04:36 PM
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Interesting. I know about VTT, but what about 24/7 Vcore? I've read 1.475V (taken from cpu-z), have you seen any higher?

As for the side panel mod, I did that with a Zalman AlCu7000, which lowered the temps greatly. My case (back then, a Chenbro) had a side panel opening and an air duct already installed. I modified it just like you said, but the end was a modified plastic bowl that matched the diameter of the Zalman - that meant about 1/8" clearance from the HSF... Worked great! Heck, you could feel the suction from outside the case.
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Old July 15, 2008, 09:12 PM
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Interesting. I know about VTT, but what about 24/7 Vcore? I've read 1.475V (taken from cpu-z), have you seen any higher?

As for the side panel mod, I did that with a Zalman AlCu7000, which lowered the temps greatly. My case (back then, a Chenbro) had a side panel opening and an air duct already installed. I modified it just like you said, but the end was a modified plastic bowl that matched the diameter of the Zalman - that meant about 1/8" clearance from the HSF... Worked great! Heck, you could feel the suction from outside the case.
First of all.. yeah, 1.5625v is pretty high vCore for 3.9GHz ...they must have used more voltage than necessary to increase the heat load. Generally, what i've seen a lot of the guys on XS saying, is 1.37-1.40 vCore(real) for 24/7. I usually run 1.40-1.50v depending on the temp in our computer-room. If it's a warm summer day, but not hot enough for the A/C..i'll drop the clockspeed if unneeded. If it's a winter day(i'll open the window) or hot summer day with the A/C blasting.. i'll pump up the clockspeed. Yeah, ducts are very effective, i even built one out of a Coke case.. and it lasted a few years.
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Old July 16, 2008, 01:22 PM
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Meh... you don't need 1.5625V to generate a heat load with a QX9650... and thanks for the info: mine runs in the same ballpark.
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