WOW: Abit BH7, Intel P4 2.40B @ 3.33 Ghz - 185 FSB - 1.53v !!!!

[gsethi]

Hi guys

TEST System:
CPU: Intel Pentium 4 2.40B - SL6RZ - Malay - OEM
Board: Abit BH7 v1.1
Memory: Twinmos (Winbond chips) @ DDR 450 (2/5/3/3)
PSU: Antec 430w True Power
Video card: ATI Radeon 9700 Pro
Heatsink: Thermalright SLK900U w/ 92mm Zalman fan

Stress testing:
1) 3330 Mhz

FSB: 185Mhz
CPU VCore: +5% (1.53v actual)
Memory: 2/3/3/6 (SPD)
everything else default
Prime95: Ran for 10 hours and then stopped by me.........
Conclusion: System rock stable
Comments: Temps worry me....they tend to get ~70C using the Abit Hardware monitor and MBM (i know Abit reads higher temps but still worried)

2) 3420 Mhz
FSB: 190Mhz
CPU VCore: +10% (1.62v actual)
Memory: 2/3/3/6 (SPD)
everything else default
Ran Prime95 for 1 hour but then i restarted the system because temps were getting in high 60s. but it was still going.....someone told me that board reads the temps ~15C over ? is that true....? anyway testing overnight at 185FSB just to be on safe side for now...
Comments: I will test this this coming weekend so that i can keep a close eye on the temps at all times

3) 3300 Mhz
FSB: 183Mhz
CPU VCore: +5% (1.53v actual)
Memory: 2/3/3/6 (SPD)
everything else default
Rock stable.....P95 ran overnight and memtest passed ~20 loops before i stopped it manually. Temps much much better when compared to 185FSB too...
Comments: Highest my temps went were 60C (using Abit Hardware monitor)

Daily Use
FSB: 180 Mhz
CPU VCore: +5% (1.53v actual) - will test 1.47v actual over this weekend @ 180FSB again
Memory: DDR 450 @ 2/3/3/5 timings @ 2.83v actual
everything else default

 

[LastRide]

 

[wicktron]

someone told me that board reads the temps ~15C over ? is that true....?

Abit boards typically read temps higher than usual.

 

[Technonut]

Very nice OC going on.... Your SL6RZ is sweet! I use the Winbond Hardware Doctor, but I will reboot and check the -12v and -5v in the BIOS for you... Be back in a minute....

EDIT: OOPs.. That's why those readings are not in the WHD.. Not in the BIOS... I did not notice that before... I guess I'll DL MBM....

EDIT: Well, my -12v is reading -6.68v and the -5v is reading -3.94v in MBM. I have the Antec TruePower 550. Personally, I would not worry about it.. Perhaps ABIT left those readings out of the BIOS for a reason???

Abit boards typically read temps higher than usual.

This has been my experience with many different ABIT mobos as well...

 

[Duvie]

I really thinkin this abit bh7 from reviwes I am seeing isn't really do that much better then earleir abit and albatron mobos....I think it is plain those SL6Rz chips you have mainly....

 

[gsethi]

Techonut, what revision of the board you got ? My board is rev 1.1..........wondering Abit already has a v1.1 out for BH7 .....

 

[lupohki]

Mine is 1.1 as well.

 

[Tates]

v1.1 here as well

 

[Technonut]

v1.1 also....

 

[gsethi]

alright guys...then get your mobos rolling.....

i will test for 195FSB tonight........i am sure that this board can do 200 FSB, the question is whether my chip can do it or not ......Man now i need some PC3700 memory to use 4:5 ratio @ 185FSB...i am using 1:1 ratio right now

 

[gsethi]

ok guys...i am not going at anything over 185 FSB for now...many reasons but here are the main ones:

1) COOLING: I know Abit reads high temps and i am using one of the best HS available but still, i am little weary of temps and want to play on safe side.
2) VOLTAGE: I have only give the chip +5% volts (actual voltage is 1.53-1.54v) and thats just a tiny bit higher than default. I know i can go to +10% and will be save by Cooling worries me, and so i am playing it safe.
3) MEMORY: I dont think that my memory can handle it using 1:1 ratio....i dont know why...my memory runs DDR400 @ SPD @ default using 4:5 ratio but when i use 1:1 ratio, i need to give the memory little extra voltage...wonder why...

As of right now, i have tested 185FSB to be rock stable. For Daily use, i am going to consider 180 FSB(3.25Ghz) or 183 FSB(3.30 GHz).
Benches will come next weekend as i got finals to study for this week now and so i will be busy.

I will do some more stress testing @ 195 FSB w/ +10% but i will be monitoring my system very closely while doing those tests and that can only happen over the next weekend....I think that this chip can hit 200 FSB if i have a good memory and good cooling there.....anyway...hold till next week for more news from me...

I will keep dropping in and give my inputs during the weekdays but it wont be that extensive b/c of finals.

Thanks

 

[lupohki]

Keep an eye on the "Other" temperature reading in the Winbond util. I think it's the northbridge and at 3.4Ghz it got extremely hot later on in the test - close to 80C, while the CPU temp stayed under 70C and more towards 60C. I'm going see if I can cool it better, and retest.

 

[LastRide]

Where are you getting the northbridge reading from?.

 

[Tates]

Where are you getting the northbridge reading from?.

It's not the NB, its the 4-Phase Power circuitry.

On the BH7 there are 3 temp read outs:

1) System (MB)
2) CPU
3) 4-Phase PWM (Power)

 

[gsethi]

ok one more interesting info....
the temps @ 183 FSB seem a lot lot lower when compared w/ 185 FSB. i am talking about an average differnce of ~7-9C....

also, regarding the "Other" temp reading, i am getting ~49-51C. I do have a 40mm fan installed on the NB, so that is surely helping me, but it hasnt crossed the 60C mark.

PS: I still think that 185FSB is getting too hot for me and my system, so i am gonna decide b/t 180 and 183 FSB...but you watercooling guys, go ahead and take it all the way to 200 FSB and good luck....

 

[human2k]

wow, great cpu, is that cpu the new VID revision?

 

[lupohki]

Originally posted by: Tates
Where are you getting the northbridge reading from?.

It's not the NB, its the 4-Phase Power circuitry.

On the BH7 there are 3 temp read outs:

1) System (MB)
2) CPU
3) 4-Phase PWM (Power)

Would there be a way to cool the 4-Phase Power circuitry?

 

[Tates]

Would there be a way to cool the 4-Phase Power circuitry?

No need to. The goal is to keep the CPU temps as low as possible.