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AI7 Temps & Water Cooling Considerations



 
 
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  #1  
Old January 8th 04, 03:38 AM
Jim
external usenet poster
 
Posts: n/a
Default AI7 Temps & Water Cooling Considerations

Abit AI7 (BIOS 14)
P4 2.6C @ 2.85GHz (13 x 219MHz)
Coolermaster Aero 4 HSF
1GB (2 x 512MB) Kingston HyperX PC3200 (@ 219MHz, 2-3-2-5)

The memory tops out @ 219MHz, and although the timings remain TIGHT, I can't
get a single MHz higher reliably, even if I relax the timings COMPLETELY,
kinda odd. IOW, it runs FULL BORE, no errors w/ Prime95 up to 219MHz, then
totally collapses beyond that, no matter the timings, increased voltage,
etc. But that's a minor issue, I'm happy to get the 10% OC given the
vendor.

I've had this setup for about three weeks, so far so good. But I'm dubious
about the temp readings.

Room temp is about ~25C...

Aero 4 @ 2200 RPM: CPU idle ~38C, under load (Prime95), ~44C
Aero 4 @ 3800 RPM: CPU idle ~32C, under load (Prime95), ~38C

I've been an AMD user for several years (Athlon 1.2GHz, Athlon XP 2000+) and
only switched to Intel recently after growing tired of AMD's lack of thermal
control, and although I know Intel has AMD beat in the cooling department, I
wasn't expecting it to be THIS LOW!

It's not that I'm complaining, but if these temps are true, then I have some
concerns about delving into the water cooling arena (a recent interest). I
was considering the Swiftech H20-8501P kit because the CPU will NOT run
reliably w/ Prime95 over ~240MHz. What I want to do is run AT LEAST 250MHz
(1:1) and swap my Kingston PC3200 for some OCZ (or similar)
high-performance, presumably PC4000 or better. I'll happily run 5:4
temporarily once I get the CPU straightened out. But given the considerable
cost of water cooling, and the temps I'm already getting, I'm leery of
whether water cooling will actually improve by ability to OC. For pete's
sake, at the current temps, why all the trouble in reaching beyond 240MHz?
I know it could be the NB that's the problem too.

I'm just looking for a sanity check here before investing anything into
water cooling. Are these temps to be trusted? If so, why the lackluster OC
of the CPU? I'm watching video after video at 3dGameMan.com of one water
cooling solution after another, and every time the test results are
reporting these enormous OC's (e.g., P4 2.6C to 3.5GHz) and idle temps of
~38C, load temps of ~47C. Heck, I'm beating that already on air cooling! So
what's the deal here? What temps are YOU getting?

I assume if the temps are NOT to be trusted, my readings after water cooling
would drop significantly, but how much?

Btw, if you have any water cooling recommendations, I'm all ears. I like
the Swiftech because the WBs look great, it's simple, no case modding, etc.
A bit expensive, but given the apparent quality and completeness, perhaps
worth the investment. Wondering if using TWO radiators might be worth the
investment as well (although a little worried about excessive noise). I'm
hesitant about something like the Thermaltake Aquarius because there's no
chipset WB. HardOCP reported OC problems w/ the AI7 due to NB limits unless
water cooled (or heavily air cooled). So a CPU+NB solution seems the
minimum on this board. Only have a Ti4200 video card, and not really into
video card OC'ing. Seen others recommending "custom" solutions as well,
gathering WBs one place, pumps another, but what a hassle. Is something
like the Swiftech H20-8501P likely to reach 3.5GHz (270MHz)? On ONE
radiator? Two?

TIA

Jim


  #2  
Old January 9th 04, 02:06 AM
Tony
external usenet poster
 
Posts: n/a
Default


"Jim" wrote in message
news:[email protected]
Abit AI7 (BIOS 14)
P4 2.6C @ 2.85GHz (13 x 219MHz)
Coolermaster Aero 4 HSF
1GB (2 x 512MB) Kingston HyperX PC3200 (@ 219MHz, 2-3-2-5)

The memory tops out @ 219MHz, and although the timings remain TIGHT, I

can't
get a single MHz higher reliably, even if I relax the timings COMPLETELY,
kinda odd. IOW, it runs FULL BORE, no errors w/ Prime95 up to 219MHz,

then
totally collapses beyond that, no matter the timings, increased voltage,
etc. But that's a minor issue, I'm happy to get the 10% OC given the
vendor.

I've had this setup for about three weeks, so far so good. But I'm

dubious
about the temp readings.

Room temp is about ~25C...

Aero 4 @ 2200 RPM: CPU idle ~38C, under load (Prime95), ~44C
Aero 4 @ 3800 RPM: CPU idle ~32C, under load (Prime95), ~38C

I've been an AMD user for several years (Athlon 1.2GHz, Athlon XP 2000+)

and
only switched to Intel recently after growing tired of AMD's lack of

thermal
control, and although I know Intel has AMD beat in the cooling department,

I
wasn't expecting it to be THIS LOW!


....snip...

Jim, I also have an AI7 and 2.6C. I bought two 512MB sticks of Buffalo Tech
PC3700, and cannot get it to budge past 210MHz (that's not even close to
what it's rated for!). I have been scouring the newsgroups, Google, and the
Abit forums to try and figure out what's happening. Unlike you, I've been
using and oc'ing Intel based boards for quite some time, so my gut tells me
there's something wrong here. Your temps, however, are not out of line. I
still have the cover off my case, and my CPU/SYS/PWM is 23/22/26 at idle.
Practically an ice cube.

I'm starting to suspect one of the following things:

1) The BIOS is not yet fully tweaked. Not impossible; the IC7 (as I've read)
took quite a few BIOS upgrades before it was considered a great overclocker.
OTOH, I have read posts from other AI7 owners that seem to have the board sm
oking.

2) There is an issue with the NB on this board. Maybe the sample to sample
performance of the NB design on the AI7 is such that some boards just can't
do it.

3) Maybe there's a problem using two 512MB sticks. I can't remember where I
read it, but there have been comments about other boards that don't oc as
well with two 512MB vs two 256MB sticks.

I just got two 512MB Kingston HyperX sticks from Newegg. I'll be trying them
out in less than an hour.


  #3  
Old January 9th 04, 02:49 AM
Jim
external usenet poster
 
Posts: n/a
Default

Thanks for the reply... I originally had 512MB (2 x 256MB) of Mushkin PC3500
Dual Level II "Black", best in the business, the results were AWFUL, loose
timings, 2.8v, nothing helped! I had to RMA it back to Newegg. I was able
to pick up the HyperX 1GB real cheap, direct from Kingston, $176! Works
fine, will OC slightly, but far from my original intentions. Just happy to
be running 1:1 @ 220MHz w/ current setup. But disappointed, I was hoping
the Mushkin would OC a little over PC3500, maybe even PC4000, but damn it, I
couldn't even get it to hold 220MHz or so. I assume your Buffalo are BH-5,
like the Mushkin, so I'm stumped. As I mentioned in the original post, the
NB has been shown to be a bootleneck. Unless you're water cooling, I don't
get your temps (or mine). YOU'RE IN THE 20'S?! The temp readings on this
board have to be BOGUS! Even mine, in the low to mid 30's fluctuate far
more than my AMD Athlon ever did, varying 2-3C over a period of 20-30
seconds. I just don't trust the absolute readings on this board, no way,
esp. after hearing your temps.

Anyway, at least I'm not alone, and you may be right about the immature BIOS
(but the updates have been slow in coming lately, not a good sign).

Jim



"Tony" wrote in message
...

"Jim" wrote in message
news:[email protected]
Abit AI7 (BIOS 14)
P4 2.6C @ 2.85GHz (13 x 219MHz)
Coolermaster Aero 4 HSF
1GB (2 x 512MB) Kingston HyperX PC3200 (@ 219MHz, 2-3-2-5)

The memory tops out @ 219MHz, and although the timings remain TIGHT, I

can't
get a single MHz higher reliably, even if I relax the timings

COMPLETELY,
kinda odd. IOW, it runs FULL BORE, no errors w/ Prime95 up to 219MHz,

then
totally collapses beyond that, no matter the timings, increased voltage,
etc. But that's a minor issue, I'm happy to get the 10% OC given the
vendor.

I've had this setup for about three weeks, so far so good. But I'm

dubious
about the temp readings.

Room temp is about ~25C...

Aero 4 @ 2200 RPM: CPU idle ~38C, under load (Prime95), ~44C
Aero 4 @ 3800 RPM: CPU idle ~32C, under load (Prime95), ~38C

I've been an AMD user for several years (Athlon 1.2GHz, Athlon XP 2000+)

and
only switched to Intel recently after growing tired of AMD's lack of

thermal
control, and although I know Intel has AMD beat in the cooling

department,
I
wasn't expecting it to be THIS LOW!


...snip...

Jim, I also have an AI7 and 2.6C. I bought two 512MB sticks of Buffalo

Tech
PC3700, and cannot get it to budge past 210MHz (that's not even close to
what it's rated for!). I have been scouring the newsgroups, Google, and

the
Abit forums to try and figure out what's happening. Unlike you, I've been
using and oc'ing Intel based boards for quite some time, so my gut tells

me
there's something wrong here. Your temps, however, are not out of line. I
still have the cover off my case, and my CPU/SYS/PWM is 23/22/26 at idle.
Practically an ice cube.

I'm starting to suspect one of the following things:

1) The BIOS is not yet fully tweaked. Not impossible; the IC7 (as I've

read)
took quite a few BIOS upgrades before it was considered a great

overclocker.
OTOH, I have read posts from other AI7 owners that seem to have the board

sm
oking.

2) There is an issue with the NB on this board. Maybe the sample to sample
performance of the NB design on the AI7 is such that some boards just

can't
do it.

3) Maybe there's a problem using two 512MB sticks. I can't remember where

I
read it, but there have been comments about other boards that don't oc as
well with two 512MB vs two 256MB sticks.

I just got two 512MB Kingston HyperX sticks from Newegg. I'll be trying

them
out in less than an hour.




  #4  
Old January 9th 04, 03:46 AM
Tony
external usenet poster
 
Posts: n/a
Default

Okay, this is going to get confusing, as I bottom-posted my last response...
(g)

Keep in mind my BT sticks are PC3700. I should have been able to get 233MHz
STOCK out of them, and could not even get past 210. Well, I'm cooking right
now with the Kingston HyperX PC3500 (NOT 3700) and it IS running at its
stock 217MHz without even having to touch the base DIMM voltage (2.6V). I
had to bump the BT up to 2.8V just to get it to 210MHz. Multiple runs of
memtest86 tests 3 and 5 show no problem with the Kingston. Running Prime95
right now. Will let it run overnight.

Did I just have bum sticks of Buffalo Tech? Maybe. They are NOT the BH5
variety; there are the Micron chipped sticks. I did have one BT WB 512MB
stick that couldn't even do as well as the Micron! Funny thing is I'd have
great luck in the past oc'ing Micron memory, but that was back in the old
days of PC100 and PC133 memory. Maybe things were easier back then.
Interestingly, the Kingston are marked on the blister pack "Winbond", but
with the heat spreader I don't know if it's BH5 or CH5 chips.

I was also looking at the Mushkin, but they were out of my price window.

Yeah, maybe the temps through AbitEQ are bogus. Then again, maybe they
aren't. Remember, the cover is off, I have a Zalman CuAl7000 on the CPU, two
fans in the PS, and two Panaflo 2950RPM fans in the case going full blast. I
just wish Motherboard Monitor would get moving and update the app to work
with these new uGuru boards.

"Jim" wrote in message
news:[email protected]
Thanks for the reply... I originally had 512MB (2 x 256MB) of Mushkin

PC3500
Dual Level II "Black", best in the business, the results were AWFUL, loose
timings, 2.8v, nothing helped! I had to RMA it back to Newegg. I was

able
to pick up the HyperX 1GB real cheap, direct from Kingston, $176! Works
fine, will OC slightly, but far from my original intentions. Just happy

to
be running 1:1 @ 220MHz w/ current setup. But disappointed, I was hoping
the Mushkin would OC a little over PC3500, maybe even PC4000, but damn it,

I
couldn't even get it to hold 220MHz or so. I assume your Buffalo are

BH-5,
like the Mushkin, so I'm stumped. As I mentioned in the original post,

the
NB has been shown to be a bootleneck. Unless you're water cooling, I

don't
get your temps (or mine). YOU'RE IN THE 20'S?! The temp readings on this
board have to be BOGUS! Even mine, in the low to mid 30's fluctuate far
more than my AMD Athlon ever did, varying 2-3C over a period of 20-30
seconds. I just don't trust the absolute readings on this board, no way,
esp. after hearing your temps.

Anyway, at least I'm not alone, and you may be right about the immature

BIOS
(but the updates have been slow in coming lately, not a good sign).

Jim



"Tony" wrote in message
...

"Jim" wrote in message
news:[email protected]
Abit AI7 (BIOS 14)
P4 2.6C @ 2.85GHz (13 x 219MHz)
Coolermaster Aero 4 HSF
1GB (2 x 512MB) Kingston HyperX PC3200 (@ 219MHz, 2-3-2-5)

The memory tops out @ 219MHz, and although the timings remain TIGHT, I

can't
get a single MHz higher reliably, even if I relax the timings

COMPLETELY,
kinda odd. IOW, it runs FULL BORE, no errors w/ Prime95 up to 219MHz,

then
totally collapses beyond that, no matter the timings, increased

voltage,
etc. But that's a minor issue, I'm happy to get the 10% OC given the
vendor.

I've had this setup for about three weeks, so far so good. But I'm

dubious
about the temp readings.

Room temp is about ~25C...

Aero 4 @ 2200 RPM: CPU idle ~38C, under load (Prime95), ~44C
Aero 4 @ 3800 RPM: CPU idle ~32C, under load (Prime95), ~38C

I've been an AMD user for several years (Athlon 1.2GHz, Athlon XP

2000+)
and
only switched to Intel recently after growing tired of AMD's lack of

thermal
control, and although I know Intel has AMD beat in the cooling

department,
I
wasn't expecting it to be THIS LOW!


...snip...

Jim, I also have an AI7 and 2.6C. I bought two 512MB sticks of Buffalo

Tech
PC3700, and cannot get it to budge past 210MHz (that's not even close to
what it's rated for!). I have been scouring the newsgroups, Google, and

the
Abit forums to try and figure out what's happening. Unlike you, I've

been
using and oc'ing Intel based boards for quite some time, so my gut tells

me
there's something wrong here. Your temps, however, are not out of line.

I
still have the cover off my case, and my CPU/SYS/PWM is 23/22/26 at

idle.
Practically an ice cube.

I'm starting to suspect one of the following things:

1) The BIOS is not yet fully tweaked. Not impossible; the IC7 (as I've

read)
took quite a few BIOS upgrades before it was considered a great

overclocker.
OTOH, I have read posts from other AI7 owners that seem to have the

board
sm
oking.

2) There is an issue with the NB on this board. Maybe the sample to

sample
performance of the NB design on the AI7 is such that some boards just

can't
do it.

3) Maybe there's a problem using two 512MB sticks. I can't remember

where
I
read it, but there have been comments about other boards that don't oc

as
well with two 512MB vs two 256MB sticks.

I just got two 512MB Kingston HyperX sticks from Newegg. I'll be trying

them
out in less than an hour.






  #5  
Old January 9th 04, 01:03 PM
TomG
external usenet poster
 
Posts: n/a
Default

you could always set things up manually and use a 5:4 fsb to ram ratio which
would allow you to push the cpu much higher while back-shifting the ram
speed. while this might seem counter-productive, in most cases the increase
in CPU speed more than makes up for the downshift in ram bus speed.

you would need to set the NB to 800 and then set the ram speed to 5:4.

--

Thomas Geery
Network+ certified

ftp://geerynet.d2g.com
ftp://68.98.180.8 Abit Mirror ----- Cable modem IP
This IP is dynamic so it *could* change!...
over 120,000 FTP users served!
^^^^^^^




"Jim" wrote in message
news:[email protected]
Abit AI7 (BIOS 14)
P4 2.6C @ 2.85GHz (13 x 219MHz)
Coolermaster Aero 4 HSF
1GB (2 x 512MB) Kingston HyperX PC3200 (@ 219MHz, 2-3-2-5)

The memory tops out @ 219MHz, and although the timings remain TIGHT, I

can't
get a single MHz higher reliably, even if I relax the timings COMPLETELY,
kinda odd. IOW, it runs FULL BORE, no errors w/ Prime95 up to 219MHz,

then
totally collapses beyond that, no matter the timings, increased voltage,
etc. But that's a minor issue, I'm happy to get the 10% OC given the
vendor.

I've had this setup for about three weeks, so far so good. But I'm

dubious
about the temp readings.

Room temp is about ~25C...

Aero 4 @ 2200 RPM: CPU idle ~38C, under load (Prime95), ~44C
Aero 4 @ 3800 RPM: CPU idle ~32C, under load (Prime95), ~38C

I've been an AMD user for several years (Athlon 1.2GHz, Athlon XP 2000+)

and
only switched to Intel recently after growing tired of AMD's lack of

thermal
control, and although I know Intel has AMD beat in the cooling department,

I
wasn't expecting it to be THIS LOW!

It's not that I'm complaining, but if these temps are true, then I have

some
concerns about delving into the water cooling arena (a recent interest).

I
was considering the Swiftech H20-8501P kit because the CPU will NOT run
reliably w/ Prime95 over ~240MHz. What I want to do is run AT LEAST

250MHz
(1:1) and swap my Kingston PC3200 for some OCZ (or similar)
high-performance, presumably PC4000 or better. I'll happily run 5:4
temporarily once I get the CPU straightened out. But given the

considerable
cost of water cooling, and the temps I'm already getting, I'm leery of
whether water cooling will actually improve by ability to OC. For pete's
sake, at the current temps, why all the trouble in reaching beyond 240MHz?
I know it could be the NB that's the problem too.

I'm just looking for a sanity check here before investing anything into
water cooling. Are these temps to be trusted? If so, why the lackluster

OC
of the CPU? I'm watching video after video at 3dGameMan.com of one water
cooling solution after another, and every time the test results are
reporting these enormous OC's (e.g., P4 2.6C to 3.5GHz) and idle temps of
~38C, load temps of ~47C. Heck, I'm beating that already on air cooling!

So
what's the deal here? What temps are YOU getting?

I assume if the temps are NOT to be trusted, my readings after water

cooling
would drop significantly, but how much?

Btw, if you have any water cooling recommendations, I'm all ears. I like
the Swiftech because the WBs look great, it's simple, no case modding,

etc.
A bit expensive, but given the apparent quality and completeness, perhaps
worth the investment. Wondering if using TWO radiators might be worth the
investment as well (although a little worried about excessive noise). I'm
hesitant about something like the Thermaltake Aquarius because there's no
chipset WB. HardOCP reported OC problems w/ the AI7 due to NB limits

unless
water cooled (or heavily air cooled). So a CPU+NB solution seems the
minimum on this board. Only have a Ti4200 video card, and not really into
video card OC'ing. Seen others recommending "custom" solutions as well,
gathering WBs one place, pumps another, but what a hassle. Is something
like the Swiftech H20-8501P likely to reach 3.5GHz (270MHz)? On ONE
radiator? Two?

TIA

Jim




  #6  
Old January 9th 04, 07:36 PM
Jim
external usenet poster
 
Posts: n/a
Default

Thanks for the input... in general, I feel a 1:1 setup produces better
results UNLESS the asynch difference is truly significant. Does 250:200
qualify? Not sure. But even if it does, the problem I'm having in even
considering this possibility is that without more extreme CPU cooling, I
can't get the FSB beyond ~235-240MHz (I tried 5:4, the CPU and/or NB is
definitely the bootleneck). Of course, if I run 240 FSB, it underclocks the
ram (e.g., 240:192). At least intuitively, this doesn't seem nearly as
beneficial as running 220MHz (1:1). That's why I was considering water
cooling to get the CPU to at least 250MHz, then run 5:4 temporarily until
upgrading the RAM to PC4000 (1:1 nirvana). In the meantime, running 5:4 w/
240 FSB doesn't seem to me to be the better choice compared to 220 FSB
(1:1). Could be wrong, but seems unlikely. I noticed that when I did use
5:4, Memtest-86 walltime went through the roof, it was awful, the async
behavior seem to wreak havoc w/ the system.

Jim


"TomG" wrote in message
news:[email protected]
you could always set things up manually and use a 5:4 fsb to ram ratio

which
would allow you to push the cpu much higher while back-shifting the ram
speed. while this might seem counter-productive, in most cases the

increase
in CPU speed more than makes up for the downshift in ram bus speed.

you would need to set the NB to 800 and then set the ram speed to 5:4.

--

Thomas Geery
Network+ certified

ftp://geerynet.d2g.com
ftp://68.98.180.8 Abit Mirror ----- Cable modem IP
This IP is dynamic so it *could* change!...
over 120,000 FTP users served!
^^^^^^^




"Jim" wrote in message
news:[email protected]
Abit AI7 (BIOS 14)
P4 2.6C @ 2.85GHz (13 x 219MHz)
Coolermaster Aero 4 HSF
1GB (2 x 512MB) Kingston HyperX PC3200 (@ 219MHz, 2-3-2-5)

The memory tops out @ 219MHz, and although the timings remain TIGHT, I

can't
get a single MHz higher reliably, even if I relax the timings

COMPLETELY,
kinda odd. IOW, it runs FULL BORE, no errors w/ Prime95 up to 219MHz,

then
totally collapses beyond that, no matter the timings, increased voltage,
etc. But that's a minor issue, I'm happy to get the 10% OC given the
vendor.

I've had this setup for about three weeks, so far so good. But I'm

dubious
about the temp readings.

Room temp is about ~25C...

Aero 4 @ 2200 RPM: CPU idle ~38C, under load (Prime95), ~44C
Aero 4 @ 3800 RPM: CPU idle ~32C, under load (Prime95), ~38C

I've been an AMD user for several years (Athlon 1.2GHz, Athlon XP 2000+)

and
only switched to Intel recently after growing tired of AMD's lack of

thermal
control, and although I know Intel has AMD beat in the cooling

department,
I
wasn't expecting it to be THIS LOW!

It's not that I'm complaining, but if these temps are true, then I have

some
concerns about delving into the water cooling arena (a recent interest).

I
was considering the Swiftech H20-8501P kit because the CPU will NOT run
reliably w/ Prime95 over ~240MHz. What I want to do is run AT LEAST

250MHz
(1:1) and swap my Kingston PC3200 for some OCZ (or similar)
high-performance, presumably PC4000 or better. I'll happily run 5:4
temporarily once I get the CPU straightened out. But given the

considerable
cost of water cooling, and the temps I'm already getting, I'm leery of
whether water cooling will actually improve by ability to OC. For

pete's
sake, at the current temps, why all the trouble in reaching beyond

240MHz?
I know it could be the NB that's the problem too.

I'm just looking for a sanity check here before investing anything into
water cooling. Are these temps to be trusted? If so, why the

lackluster
OC
of the CPU? I'm watching video after video at 3dGameMan.com of one

water
cooling solution after another, and every time the test results are
reporting these enormous OC's (e.g., P4 2.6C to 3.5GHz) and idle temps

of
~38C, load temps of ~47C. Heck, I'm beating that already on air

cooling!
So
what's the deal here? What temps are YOU getting?

I assume if the temps are NOT to be trusted, my readings after water

cooling
would drop significantly, but how much?

Btw, if you have any water cooling recommendations, I'm all ears. I

like
the Swiftech because the WBs look great, it's simple, no case modding,

etc.
A bit expensive, but given the apparent quality and completeness,

perhaps
worth the investment. Wondering if using TWO radiators might be worth

the
investment as well (although a little worried about excessive noise).

I'm
hesitant about something like the Thermaltake Aquarius because there's

no
chipset WB. HardOCP reported OC problems w/ the AI7 due to NB limits

unless
water cooled (or heavily air cooled). So a CPU+NB solution seems the
minimum on this board. Only have a Ti4200 video card, and not really

into
video card OC'ing. Seen others recommending "custom" solutions as well,
gathering WBs one place, pumps another, but what a hassle. Is something
like the Swiftech H20-8501P likely to reach 3.5GHz (270MHz)? On ONE
radiator? Two?

TIA

Jim






  #7  
Old January 9th 04, 09:52 PM
TomG
external usenet poster
 
Posts: n/a
Default

well, for what it is worth, a lot of us are using async ram timing with
great success. I would recommend using some benchmark utilities to do
testing. benchmarks are useless to the real world except for comparison
testing for different settings. I would try Sandra memory bandwidth
benchmark and some others of your choosing and see what sort of numbers you
get and you may be surprised at the results.

currently getting 244 out of mine and my ram would not do 1:1 at that FSB
and the system is much faster in an async setup than running at the
limitations of the ram.

--

Thomas Geery
Network+ certified

ftp://geerynet.d2g.com
ftp://68.98.180.8 Abit Mirror ----- Cable modem IP
This IP is dynamic so it *could* change!...
over 120,000 FTP users served!
^^^^^^^




"Jim" wrote in message
news:[email protected]
Thanks for the input... in general, I feel a 1:1 setup produces better
results UNLESS the asynch difference is truly significant. Does 250:200
qualify? Not sure. But even if it does, the problem I'm having in even
considering this possibility is that without more extreme CPU cooling, I
can't get the FSB beyond ~235-240MHz (I tried 5:4, the CPU and/or NB is
definitely the bootleneck). Of course, if I run 240 FSB, it underclocks

the
ram (e.g., 240:192). At least intuitively, this doesn't seem nearly as
beneficial as running 220MHz (1:1). That's why I was considering water
cooling to get the CPU to at least 250MHz, then run 5:4 temporarily until
upgrading the RAM to PC4000 (1:1 nirvana). In the meantime, running 5:4

w/
240 FSB doesn't seem to me to be the better choice compared to 220 FSB
(1:1). Could be wrong, but seems unlikely. I noticed that when I did use
5:4, Memtest-86 walltime went through the roof, it was awful, the async
behavior seem to wreak havoc w/ the system.

Jim


"TomG" wrote in message
news:[email protected]
you could always set things up manually and use a 5:4 fsb to ram ratio

which
would allow you to push the cpu much higher while back-shifting the ram
speed. while this might seem counter-productive, in most cases the

increase
in CPU speed more than makes up for the downshift in ram bus speed.

you would need to set the NB to 800 and then set the ram speed to 5:4.

--

Thomas Geery
Network+ certified

ftp://geerynet.d2g.com
ftp://68.98.180.8 Abit Mirror ----- Cable modem IP
This IP is dynamic so it *could* change!...
over 120,000 FTP users served!
^^^^^^^




"Jim" wrote in message
news:[email protected]
Abit AI7 (BIOS 14)
P4 2.6C @ 2.85GHz (13 x 219MHz)
Coolermaster Aero 4 HSF
1GB (2 x 512MB) Kingston HyperX PC3200 (@ 219MHz, 2-3-2-5)

The memory tops out @ 219MHz, and although the timings remain TIGHT, I

can't
get a single MHz higher reliably, even if I relax the timings

COMPLETELY,
kinda odd. IOW, it runs FULL BORE, no errors w/ Prime95 up to 219MHz,

then
totally collapses beyond that, no matter the timings, increased

voltage,
etc. But that's a minor issue, I'm happy to get the 10% OC given the
vendor.

I've had this setup for about three weeks, so far so good. But I'm

dubious
about the temp readings.

Room temp is about ~25C...

Aero 4 @ 2200 RPM: CPU idle ~38C, under load (Prime95), ~44C
Aero 4 @ 3800 RPM: CPU idle ~32C, under load (Prime95), ~38C

I've been an AMD user for several years (Athlon 1.2GHz, Athlon XP

2000+)
and
only switched to Intel recently after growing tired of AMD's lack of

thermal
control, and although I know Intel has AMD beat in the cooling

department,
I
wasn't expecting it to be THIS LOW!

It's not that I'm complaining, but if these temps are true, then I

have
some
concerns about delving into the water cooling arena (a recent

interest).
I
was considering the Swiftech H20-8501P kit because the CPU will NOT

run
reliably w/ Prime95 over ~240MHz. What I want to do is run AT LEAST

250MHz
(1:1) and swap my Kingston PC3200 for some OCZ (or similar)
high-performance, presumably PC4000 or better. I'll happily run 5:4
temporarily once I get the CPU straightened out. But given the

considerable
cost of water cooling, and the temps I'm already getting, I'm leery of
whether water cooling will actually improve by ability to OC. For

pete's
sake, at the current temps, why all the trouble in reaching beyond

240MHz?
I know it could be the NB that's the problem too.

I'm just looking for a sanity check here before investing anything

into
water cooling. Are these temps to be trusted? If so, why the

lackluster
OC
of the CPU? I'm watching video after video at 3dGameMan.com of one

water
cooling solution after another, and every time the test results are
reporting these enormous OC's (e.g., P4 2.6C to 3.5GHz) and idle temps

of
~38C, load temps of ~47C. Heck, I'm beating that already on air

cooling!
So
what's the deal here? What temps are YOU getting?

I assume if the temps are NOT to be trusted, my readings after water

cooling
would drop significantly, but how much?

Btw, if you have any water cooling recommendations, I'm all ears. I

like
the Swiftech because the WBs look great, it's simple, no case modding,

etc.
A bit expensive, but given the apparent quality and completeness,

perhaps
worth the investment. Wondering if using TWO radiators might be worth

the
investment as well (although a little worried about excessive noise).

I'm
hesitant about something like the Thermaltake Aquarius because there's

no
chipset WB. HardOCP reported OC problems w/ the AI7 due to NB limits

unless
water cooled (or heavily air cooled). So a CPU+NB solution seems the
minimum on this board. Only have a Ti4200 video card, and not really

into
video card OC'ing. Seen others recommending "custom" solutions as

well,
gathering WBs one place, pumps another, but what a hassle. Is

something
like the Swiftech H20-8501P likely to reach 3.5GHz (270MHz)? On ONE
radiator? Two?

TIA

Jim








  #8  
Old January 10th 04, 04:28 AM
Tony
external usenet poster
 
Posts: n/a
Default

15 hours under Prime 95 Torture Test with no errors or warnings. I did have
to bump VDIMM to 2.7v and VCPU to 1.55v for Prime95. Interestingly,
memtest86 showed no memory errors at 2.6 volts.

"Tony" wrote in message
...
Okay, this is going to get confusing, as I bottom-posted my last

response...
(g)

Keep in mind my BT sticks are PC3700. I should have been able to get

233MHz
STOCK out of them, and could not even get past 210. Well, I'm cooking

right
now with the Kingston HyperX PC3500 (NOT 3700) and it IS running at its
stock 217MHz without even having to touch the base DIMM voltage (2.6V). I
had to bump the BT up to 2.8V just to get it to 210MHz. Multiple runs of
memtest86 tests 3 and 5 show no problem with the Kingston. Running Prime95
right now. Will let it run overnight.

Did I just have bum sticks of Buffalo Tech? Maybe. They are NOT the BH5
variety; there are the Micron chipped sticks. I did have one BT WB 512MB
stick that couldn't even do as well as the Micron! Funny thing is I'd have
great luck in the past oc'ing Micron memory, but that was back in the old
days of PC100 and PC133 memory. Maybe things were easier back then.
Interestingly, the Kingston are marked on the blister pack "Winbond", but
with the heat spreader I don't know if it's BH5 or CH5 chips.

I was also looking at the Mushkin, but they were out of my price window.

Yeah, maybe the temps through AbitEQ are bogus. Then again, maybe they
aren't. Remember, the cover is off, I have a Zalman CuAl7000 on the CPU,

two
fans in the PS, and two Panaflo 2950RPM fans in the case going full blast.

I
just wish Motherboard Monitor would get moving and update the app to work
with these new uGuru boards.

"Jim" wrote in message
news:[email protected]
Thanks for the reply... I originally had 512MB (2 x 256MB) of Mushkin

PC3500
Dual Level II "Black", best in the business, the results were AWFUL,

loose
timings, 2.8v, nothing helped! I had to RMA it back to Newegg. I was

able
to pick up the HyperX 1GB real cheap, direct from Kingston, $176! Works
fine, will OC slightly, but far from my original intentions. Just happy

to
be running 1:1 @ 220MHz w/ current setup. But disappointed, I was

hoping
the Mushkin would OC a little over PC3500, maybe even PC4000, but damn

it,
I
couldn't even get it to hold 220MHz or so. I assume your Buffalo are

BH-5,
like the Mushkin, so I'm stumped. As I mentioned in the original post,

the
NB has been shown to be a bootleneck. Unless you're water cooling, I

don't
get your temps (or mine). YOU'RE IN THE 20'S?! The temp readings on

this
board have to be BOGUS! Even mine, in the low to mid 30's fluctuate far
more than my AMD Athlon ever did, varying 2-3C over a period of 20-30
seconds. I just don't trust the absolute readings on this board, no

way,
esp. after hearing your temps.

Anyway, at least I'm not alone, and you may be right about the immature

BIOS
(but the updates have been slow in coming lately, not a good sign).

Jim



"Tony" wrote in message
...

"Jim" wrote in message
news:[email protected]
Abit AI7 (BIOS 14)
P4 2.6C @ 2.85GHz (13 x 219MHz)
Coolermaster Aero 4 HSF
1GB (2 x 512MB) Kingston HyperX PC3200 (@ 219MHz, 2-3-2-5)

The memory tops out @ 219MHz, and although the timings remain TIGHT,

I
can't
get a single MHz higher reliably, even if I relax the timings

COMPLETELY,
kinda odd. IOW, it runs FULL BORE, no errors w/ Prime95 up to

219MHz,
then
totally collapses beyond that, no matter the timings, increased

voltage,
etc. But that's a minor issue, I'm happy to get the 10% OC given

the
vendor.

I've had this setup for about three weeks, so far so good. But I'm
dubious
about the temp readings.

Room temp is about ~25C...

Aero 4 @ 2200 RPM: CPU idle ~38C, under load (Prime95), ~44C
Aero 4 @ 3800 RPM: CPU idle ~32C, under load (Prime95), ~38C

I've been an AMD user for several years (Athlon 1.2GHz, Athlon XP

2000+)
and
only switched to Intel recently after growing tired of AMD's lack of
thermal
control, and although I know Intel has AMD beat in the cooling

department,
I
wasn't expecting it to be THIS LOW!


...snip...

Jim, I also have an AI7 and 2.6C. I bought two 512MB sticks of Buffalo

Tech
PC3700, and cannot get it to budge past 210MHz (that's not even close

to
what it's rated for!). I have been scouring the newsgroups, Google,

and
the
Abit forums to try and figure out what's happening. Unlike you, I've

been
using and oc'ing Intel based boards for quite some time, so my gut

tells
me
there's something wrong here. Your temps, however, are not out of

line.
I
still have the cover off my case, and my CPU/SYS/PWM is 23/22/26 at

idle.
Practically an ice cube.

I'm starting to suspect one of the following things:

1) The BIOS is not yet fully tweaked. Not impossible; the IC7 (as I've

read)
took quite a few BIOS upgrades before it was considered a great

overclocker.
OTOH, I have read posts from other AI7 owners that seem to have the

board
sm
oking.

2) There is an issue with the NB on this board. Maybe the sample to

sample
performance of the NB design on the AI7 is such that some boards just

can't
do it.

3) Maybe there's a problem using two 512MB sticks. I can't remember

where
I
read it, but there have been comments about other boards that don't oc

as
well with two 512MB vs two 256MB sticks.

I just got two 512MB Kingston HyperX sticks from Newegg. I'll be

trying
them
out in less than an hour.








 




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