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post #7211 of 28697
Thread Starter 
Inspired a bit my pioneer's recent bout of tweaks to his system, I decided to try a tweak on my sig rig. Being the cautious sort, I had always kept the A8N32-SLI Deluxe's HT Link speed at or below 1GHz to avoid instability. Moreover, user reports have consistently always been that increasing HT speed doesn't net in increased benchmark figures, so it was fine to keep this figure to circa 800-1000MHz.

I decided to try increasing my HT Link Multiplier from 3x to 4x to see if 1) it would affect my machine's stability and 2) whether or not there would be any performance gains. Aside from bumping up the HT Link Multiplier, I also increased the HT Link signal strength (Enable LDT Overvolt in the BIOS, if I remember correctly).

The resulting HT Link Speed on the system is now 1120MHz (280MHz HTT Clock x 4), or 120MHz above spec. Testing with S&M v.1.9.1 on full intensity (using all tests sans the HDD tests) for stability, the system passed without incident, so it appears the system is completely stable with a 12% hike in HT Link speed.

I haven't run any benchmarks to test throughput, but on a purely subjective level the system is appreciably more responsive. Programs open and close noticeably faster. The whole system just feels much lighter on its feet.

A caveat: If you're considering doing something similar with your system, I advise that you subject it to a thorough, stringent test. An unstable system will destroy your OS. Further, your hardware (the motherboard, specifically) may not be able to handle the increased HT Link speed. Stability testing is critical for something like this.

I have a couple of tests in mind to test whether or not the tweak leads to increased benchmark scores (3DMark06, SuperPi). The only thing I'm looking for here is any increase in scores. Does anybody have any suggestions for other benchmarks to test for increased throughput?
    
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post #7212 of 28697
Quote:
Originally Posted by blitz6804 View Post
That I/O plate, while in my opinion necessary,
post #7213 of 28697
Quote:
Originally Posted by txtmstrjoe View Post
Inspired a bit my pioneer's recent bout of tweaks to his system, I decided to try a tweak on my sig rig. Being the cautious sort, I had always kept the A8N32-SLI Deluxe's HT Link speed at or below 1GHz to avoid instability. Moreover, user reports have consistently always been that increasing HT speed doesn't net in increased benchmark figures, so it was fine to keep this figure to circa 800-1000MHz.

I decided to try increasing my HT Link Multiplier from 3x to 4x to see if 1) it would affect my machine's stability and 2) whether or not there would be any performance gains. Aside from bumping up the HT Link Multiplier, I also increased the HT Link signal strength (Enable LDT Overvolt in the BIOS, if I remember correctly).

The resulting HT Link Speed on the system is now 1120MHz (280MHz HTT Clock x 4), or 120MHz above spec. Testing with S&M v.1.9.1 on full intensity (using all tests sans the HDD tests) for stability, the system passed without incident, so it appears the system is completely stable with a 12% hike in HT Link speed.

I haven't run any benchmarks to test throughput, but on a purely subjective level the system is appreciably more responsive. Programs open and close noticeably faster. The whole system just feels much lighter on its feet.

A caveat: If you're considering doing something similar with your system, I advise that you subject it to a thorough, stringent test. An unstable system will destroy your OS. Further, your hardware (the motherboard, specifically) may not be able to handle the increased HT Link speed. Stability testing is critical for something like this.

I have a couple of tests in mind to test whether or not the tweak leads to increased benchmark scores (3DMark06, SuperPi). The only thing I'm looking for here is any increase in scores. Does anybody have any suggestions for other benchmarks to test for increased throughput?
I lowered my FSB from 375 to 334 to increase the HTT and noticed a drop in SuperPi even with the higher HTT. I then put my setting back to 375 and got my 28 second SuperPi run back. The higher HTT didn't do anything for me. Of course this on my DFI Mobo so results may very.
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post #7214 of 28697
Quote:
Originally Posted by txtmstrjoe View Post
Inspired a bit my pioneer's recent bout of tweaks to his system, I decided to try a tweak on my sig rig. Being the cautious sort, I had always kept the A8N32-SLI Deluxe's HT Link speed at or below 1GHz to avoid instability. Moreover, user reports have consistently always been that increasing HT speed doesn't net in increased benchmark figures, so it was fine to keep this figure to circa 800-1000MHz.

I decided to try increasing my HT Link Multiplier from 3x to 4x to see if 1) it would affect my machine's stability and 2) whether or not there would be any performance gains. Aside from bumping up the HT Link Multiplier, I also increased the HT Link signal strength (Enable LDT Overvolt in the BIOS, if I remember correctly).

The resulting HT Link Speed on the system is now 1120MHz (280MHz HTT Clock x 4), or 120MHz above spec. Testing with S&M v.1.9.1 on full intensity (using all tests sans the HDD tests) for stability, the system passed without incident, so it appears the system is completely stable with a 12% hike in HT Link speed.

I haven't run any benchmarks to test throughput, but on a purely subjective level the system is appreciably more responsive. Programs open and close noticeably faster. The whole system just feels much lighter on its feet.

A caveat: If you're considering doing something similar with your system, I advise that you subject it to a thorough, stringent test. An unstable system will destroy your OS. Further, your hardware (the motherboard, specifically) may not be able to handle the increased HT Link speed. Stability testing is critical for something like this.

I have a couple of tests in mind to test whether or not the tweak leads to increased benchmark scores (3DMark06, SuperPi). The only thing I'm looking for here is any increase in scores. Does anybody have any suggestions for other benchmarks to test for increased throughput?
So I'm NOT the only one who notices a difference????!!!!! Mine was running at 1250MHz with my 2.8GHz run (312x4). And just EVERYTHING seems to load faster when the HT Link is up higher. Just like I've been TRYING to say! I'm glad that I now have a second person to back up this theory though .

Oh and joe:
Your package will be shipping tomorrow .
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post #7215 of 28697
what multiplier are you two using? I'm stuck with 9 being my highest. Bah! I need to hurry and buy that Opty 170 from the mighty Joe.
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post #7216 of 28697
Quote:
Originally Posted by GuardianOdin View Post
what multiplier are you two using? I'm stuck with 9 being my highest. Bah! I need to hurry and buy that Opty 170 from the mighty Joe.
I'm using 9x multiplier. I can't go any higher at all with a lower multiplier on my HT Clock either .
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post #7217 of 28697
Quote:
Originally Posted by pioneerisloud View Post
I'm using 9x multiplier. I can't go any higher at all with a lower multiplier on my HT Clock either .
I'll give that higher HTT another shot in the morning after work. I tried earlier tonight, but I think I goofed it up.

GOOD NEWS! We get to keep the house That means I won't have to find another place to live
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post #7218 of 28697
Thread Starter 
I've done some benchmarking tonight to see if there are any measurable effects from increasing your HT Link speed without changing your CPU speed. Running SuperPi, the system was fractions of a second slower in the 1M test (ran it several times, and the results were consistent), so apparently performance is not affected. Similarly, I ran 3DMark06; scores did not increase, but were very close to my system's best score at identical settings. I would say that the results are within 2-3% of the target score, and therefore are comparable.

I did another test: Boot-up time from cold. My consistent boot-up time under a 3x HT Multiplier is ~1:22.xx secs. This is from complete shutdown to completely loading everything when WinXP starts up. With the 4x HT Multiplier, I saw a consistent boot-up time of ~1:11.xx secs. That's an improvement of around 10%, if my estimate is correct.

Bottom line: Benchmarks may not prove that there is an improvement in performance, but the feel at the keyboard level is definitely there. The fact that there is also a detectable and measurable improvement in boot-up times also suggests that increasing the HT Link speed does have a positive effect on total system performance.
    
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post #7219 of 28697
Quote:
Originally Posted by txtmstrjoe View Post
I've done some benchmarking tonight to see if there are any measurable effects from increasing your HT Link speed without changing your CPU speed. Running SuperPi, the system was fractions of a second slower in the 1M test (ran it several times, and the results were consistent), so apparently performance is not affected. Similarly, I ran 3DMark06; scores did not increase, but were very close to my system's best score at identical settings. I would say that the results are within 2-3% of the target score, and therefore are comparable.

I did another test: Boot-up time from cold. My consistent boot-up time under a 3x HT Multiplier is ~1:22.xx secs. This is from complete shutdown to completely loading everything when WinXP starts up. With the 4x HT Multiplier, I saw a consistent boot-up time of ~1:11.xx secs. That's an improvement of around 10%, if my estimate is correct.

Bottom line: Benchmarks may not prove that there is an improvement in performance, but the feel at the keyboard level is definitely there. The fact that there is also a detectable and measurable improvement in boot-up times also suggests that increasing the HT Link speed does have a positive effect on total system performance.
I KNEW IT! + Rep for you good sir....for PROVING what I have been saying for so long! And you guys doubted me and told me to drop my HT Link! Screw it...I'm upping it to 1333!!!
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Crucial MX100 256GB WD Green 2TB DVDRW Corsair H50 Push / Pull 
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NZXT 120mm fans strapped to stock 7970 cooler Windows 10 Pro Dell 3007WFP Dell 2007FP 
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post #7220 of 28697
Thread Starter 
Quote:
Originally Posted by pioneerisloud View Post
I KNEW IT! + Rep for you good sir....for PROVING what I have been saying for so long! And you guys doubted me and told me to drop my HT Link! Screw it...I'm upping it to 1333!!!
pio, just be careful you don't go too far out of spec.

(I'd image your OS before going for a 33% bump up in HT speed. )

By the way, I'll likely send your package out on Friday. No time tomorrow at all (delivering a rig to a client after work ).

EDIT: G.O.! Good to hear the great news! Your Opty 170 has a definite home, then.
    
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