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**OFFICIAL** Abit BG7 (i845G) Thread

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ChrisADuffy

Golden Member
Jul 30, 2000
1,324
0
0
Anyone own the ABIT BG7m Intel 845G chipset P4 478 Micro ATX motherboard ???

How do you like it? How is the Bios, is it the same as the BG7?
 

NanoMem

Member
Jun 3, 2002
78
0
0
Joker5051, you're absolutely right. By "low sandra mem", I was only referring to that small discrepancy on the low side in relation to the Epox 4BDA2+ of oldfart at 150 FSB and Tuffguy's results with his BG7 at 145 FSB with 3:4 using corsair memory. I am curious to verify your baseline with standard ratings of 1:1 and 133 MHZ FSB (FSB=133, DDR=266) just to compare it to Tuffguy's system and this site's review of the same board.

Not that you should see any major performance gain or anything, but have you tried exploiting the intrinsic timing properties of your memory such as using CAS latency 2 instead of CAS 2.5 in the BIOS? I noticed that yours is set to 2.5 for the tests, is there a reason why 2 would not work for you? Tuffguy mentions that BG7 BIOS includes support for 1.5 CAS latency;). Memory and board manufacturers recommend using automatic SPD detection. We are unconsciously sucked into assumptions based on our perception of "unquestionable optimization for the consumer by the manufacturer" or into fears over "risks for voiding warranty when guidelines are not followed". The presence of manual CAS/RAS time settings in the BIOS suggests that manufacturers in general and oc'ing hobbyists in particular always have the option to squeeze more juice out.

This site's tests shows that PC2700 Samsung 512 MB modules are probably the best oc'able DDR DIMM's out there especially if you get one from Newegg. I wonder if Tuffguy was having such a hard time above 145 FSB and 3:4 DDR ratio with his corsair because of 7.5 ns Micron chips (although corsair is also known to use Samsung chips now). Note that Corsair with 7.5 ns Micron chips did not do well under the same battery of tests. This guy had no problem squeezing 200MHZ in external memory frequency (DDR=400MHZ) using DDR voltage of 2.8V and intrinsic settings of 2-2-2-5 on a Samsung DIMM. The tester mentions the use of 6.0 ns Samsung chips on both OCZ and Samsung modules. Note that it's the "B3" at the end of the second line on the pictured Samsung chips that translates to a speed rating of 6.0 nanoseconds and a CAS latency of 2.5 according to Samsung. This internal speed would correspond to an external clock frequency of (1/6.0*1000) i.e. ~167MHZ or a DDR~333MHZ which was successfully pushed to 400MHZ and CAS latency of 2. Check out these links on how you can decode readings on Samsung chips and modules. On the chip decode page, note that Samsung already makes chips rated at "A3" and "A4" which corresponds to approved 6ns and 5ns at CL 2. These two speed ratings translate into manufacturing support for true ratings of DDR333 and DDR400 respectively. No wonder DDR's beyond 400 with CL 1.5 should be on the horizons. Presently, are there other mobo vendors allowing CL settings of 1.5 in their BIOS besides Abit. This might be a hint on who's stretching clocks on boards to near term futuristic limits.

The fact that his platform test is a 8K3A+ makes it a totally different ball game in terms of CPU/Chipset/BIOS etc. but nonetheless his tests do show that true fast chips on high quality PCB's (probably main reason why OCZ did not outperform Samsung around 190-200MHZ in turbo mode i.e. cas settings of 2-2-2-5) will enhance stability as well as oc'ability under higher FSB's.

Here is a little heads-up on what to expect from BD7-II. Ocworkbench was able to some how reach a 354 DDR with timings of 2-2-2-5 on WinBond memory. I assume he's using FSB~133 and therefore 3:4 as ratio to match this DDR. I highly doubt he was doing it with an FSB of ~177 and ratio of 1:1 especially since he is using Winbond memory, check out his explanation why Winbond wouldn't work for him above 133 FSB at 2-2-2-5) although some people have been able to go above 170 MHZ FSB with 1.6a P4's.

Joker5051 and Tuffguy, consider the above a token of my appreciation for the good work and feedback you provided us in this thread on BG7 and 845G.

Keep it up! L8er...




 

NanoMem

Member
Jun 3, 2002
78
0
0
TuffGuy,

Did you realize that your BG7 sandra mem scores at 133 FSB and 1:1 DDR ratio slightly outperformed this other same BG7 at the same speeds? Equally, your BG7 sandra mem scores at 133 FSB and 3:4 DDR again slightly bypassed OCWorkbench's BD7-II? I just thought you might want to know that you must have been doing things right with your BG7 at least when it could stand low FSB's <150. Let see what Joker5051 will do when he has them both side by side and hopefully with his magic stick from Samsung!

Peace!

 

TuffGuy

Diamond Member
Jul 6, 2000
6,478
0
76
Originally posted by: NanoMem
TuffGuy,

Did you realize that your BG7 sandra mem scores at 133 FSB and 1:1 DDR ratio slightly outperformed this other same BG7 at the same speeds? Equally, your BG7 sandra mem scores at 133 FSB and 3:4 DDR again slightly bypassed OCWorkbench's BD7-II? I just thought you might want to know that you must have been doing things right with your BG7 at least when it could stand low FSB's <150. Let see what Joker5051 will do when he has them both side by side and hopefully with his magic stick from Samsung!

Peace!
My BD7-II has very similar scores too. :) But the BD7-II scores much lower in 3DMark2001. :(

Btw, I emailed Newegg to see if I can return the Corsair and get some Samsung.
 

zeroidea

Senior member
Jan 1, 2000
643
0
76
Originally posted by: TuffGuy
First impressions: great board, installation was a breeze. No problems whatsoever during WinXP install. And it's so much quieter than my 1800+ XP. :D
...
:)


Could you comment at all on the stock HS/F's acoustics? Is it quiet like not-as-loud-as-delta-black-label, or quiet like you can't here it? I've just begun my P4 building oddyssey, and I'd very much like the new computer to be as silent as my current celly/SK-6/Panaflo setup.
 

TuffGuy

Diamond Member
Jul 6, 2000
6,478
0
76
Originally posted by: zeroidea
Originally posted by: TuffGuy
First impressions: great board, installation was a breeze. No problems whatsoever during WinXP install. And it's so much quieter than my 1800+ XP. :D
...
:)


Could you comment at all on the stock HS/F's acoustics? Is it quiet like not-as-loud-as-delta-black-label, or quiet like you can't here it? I've just begun my P4 building oddyssey, and I'd very much like the new computer to be as silent as my current celly/SK-6/Panaflo setup.
For reference, my AthlonXP system has an Alpha pal8045 with a 32dba Sunon. I also had 2 of the Antec SX1030 stock fans (pretty quiet) for ventilation. Since I have two cases, I had my XP on while assembling the P4 system, and when I turned it on you couldn't hear it over the noise from the XP. The XP system can literally drown out TWO of the P4 systems. I have since upgraded the stock P4 HSF to an Alpha pal8942 and a quiet 21dba Vantec stealth. The loudest thing in my case now is the Ti4400, which completely drowns out the rest of the fans. If you use the onboard graphics, the system is almost invisible. I can actually hear the hard drive being accessed.
 

OneOfTheseDays

Diamond Member
Jan 15, 2000
7,052
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how does the pal8492 and the vantec work for cooling OC'd p4 systems. I'm usin the stock HSF right now, and would like somethin quieter. Do you recommend the pal8942 and vantec combo?
 

TuffGuy

Diamond Member
Jul 6, 2000
6,478
0
76
Originally posted by: Sudheer Anne
how does the pal8492 and the vantec work for cooling OC'd p4 systems. I'm usin the stock HSF right now, and would like somethin quieter. Do you recommend the pal8942 and vantec combo?
It's considerably quieter, and cools a little better. Capable of cooling a lot better with a more powerful fan, but I want a quiet system. I have 3 Vantecs in my system. One on the Alpha, one for intake and another for exhaust. I got 6 of them for ~$5 at coolerguys.com last week when they had a pricing error. :D
 

Barrei

Senior member
Mar 21, 2002
514
0
0
Mounted this fan here on my Alpha 8942 and its great incredible airflow when o/c to new highs and much slower speeds when surfing ,also very quiet.
 

5150Joker

Diamond Member
Feb 6, 2002
5,549
0
71
www.techinferno.com
Tuffguy--

Have you gotten any bios checksum errors after saving settings in the bios with the bd7-II raid? I have been getting those ever since i flashed to the newest bios. Either I flashed it incorrectly or something's wrong with this board. So far this board doesn't overclock any better than my BG7, infact they overclock to the same speed (160 fsb) except the BG7 allows 4:5 at that speed. Not sure which to keep at this point but one thing I did notice is that at 150 fsb with 3:4 the bd7-II scores higher in sandra memory marks. Also I noticed people complaining about undervolting but for some reason I don't get that problem with this bd7II.
 

TuffGuy

Diamond Member
Jul 6, 2000
6,478
0
76
Originally posted by: 5150Joker
Tuffguy--

Have you gotten any bios checksum errors after saving settings in the bios with the bd7-II raid? I have been getting those ever since i flashed to the newest bios. Either I flashed it incorrectly or something's wrong with this board. So far this board doesn't overclock any better than my BG7, infact they overclock to the same speed (160 fsb) except the BG7 allows 4:5 at that speed. Not sure which to keep at this point but one thing I did notice is that at 150 fsb with 3:4 the bd7-II scores higher in sandra memory marks. Also I noticed people complaining about undervolting but for some reason I don't get that problem with this bd7II.
Well, I only have the BD7-II, but no, I haven't gotten any BIOS checksum errors. Just a low CPU voltage problem and a high system temp problem. You said that you don't have the voltage problem. What about the high system temp one?

I have another BD7-II and two BG7s lying around, but I haven't gotten around to playing with those. I think that I'll set up the other BD7-II first to see if it has the same problems as this one. And I have 2 sticks of Samsung PC2700 soming in tomorrow. Hopefully those are better than my Corsair, which I'm going to return.

I also picked up a temp Antec 350W from Best Buy to test my system with in addition to my 550W Enermax. No improvements.

 

TuffGuy

Diamond Member
Jul 6, 2000
6,478
0
76
Hey, have you run 3DMark2001 on both your systems? My BG7 gets much higher scores than my BD7-II.
 

5150Joker

Diamond Member
Feb 6, 2002
5,549
0
71
www.techinferno.com
Yep I just finished running 3dmark and I scored 12,756 at 150 fsb which is higher than what I got with the BG7 at the same speed. I also scored 3090/3088 sandra memory marks at 150 fsb which again is higher than what I got with the BG7. BUT the bg7 overclocked better for me and was more stable. Seems I suffer from the vdimm problem since 2.7 on this board isn't stable enough to sustain 155 fsb. I think I'm going to RMA this bd7-II and keep the BG7 since it can do 160 fsb at 4:5. I couldn't go higher than 161 fsb with this board and I was limited to 160 fsb w/the BG7 so that leads me to believe my cpu can't go any higher than that :( Well 2.56 ghz isn't too bad I guess, I was hoping for the 2.6-2.7 ghz range though. Oh about the system temperature, I get the same abnormally high reading as you do as well. Shows 40C which is a lot higher than the 28C BG7 reported.


Edit: Just put in an RMA for this board. It's ok but BG7 is better IMO.
 

TuffGuy

Diamond Member
Jul 6, 2000
6,478
0
76
Hey, I just noticed something strange. Even with the 05/03 BIOS, I don't get the 4:5 ratio when flashing the BG7s. This is the file that I'm flashing with: [F=]ftp://ftp.abit.com.tw/pub/download/fae/bg700.exe[/F]

Is there a newer BIOS available elsewhere?
 

TuffGuy

Diamond Member
Jul 6, 2000
6,478
0
76
Never mind, I'm an idiot. It's enabled once you select the high DRAM Ratio H/W Strap. :eek:

Anyway, I just installed my second BG7 and right now it's running at 154MHz fsb at 1.61V and 2.6V. =)
 

Lance22

Member
Jun 5, 2002
61
0
0
Im trying to decide between the bd7II and the bg7... I plan on using a 2.26 chip and water cooling. If anyone can help me decide and give me some info, I would greatly appriciate it. Thanks
 

mike9390

Member
Mar 23, 2002
55
0
0
It seems that both boards overclock the same after all. The BG7 seems to be the better choice, it seems to be more stable since you can select 2.8V for the memory plus you have the 4:5 ratio as well as 3:4. I don't believe I've heard anyone with a BG7 have the core under volt problem either. I too am getting a 2.26 and Samsung PC2700 DDR but I really don't care about overclocking I'm more concerned with having the flexibility to my memory at top performance. Lance if your going to use water cooling you should be able to get great overclocks and with the BG7 if your memory tops out at 3:4 you have the option of selecting the 4:5 ratio and maybe pushing your FSB a little father.

I would like to thank those who bought these boards so the rest of us could enjoy their journey and I could make my final decision. Good job guys!:) Let's keep them coming.
 

Krellor

Member
May 14, 2002
30
0
0
Well I've taken the plunge. Thanks for all the hard work and great posts guys. Here's my order:

ABIT BG7
P4 1.6A
1x512 Samsung PC2700 (from Newegg) they just got some in for $121.00 :D
Antec True Power 550W
Alpha PAL8942 w/ Sunnon 32dB fan
VisionTek GF4 TI4400
Maxtor D740X 80GB ATA133 Hard Drive


I'll let you guys know how everything turns out once I get it all. Probably not till Monday... :(

Thanks again for all the great information you have provided, it was invaluable in helping me with my decisions.
 

jaybee

Senior member
Apr 5, 2002
562
0
0
I keep hearing about an 'undervolt problem'. From what I've heard, the voltage setting for the P4 is a maximum voltage. I think this is applied at bootup. Anyway, I'm sorry I don't have a link, but I saw an article recently that stated that the voltage selected in the bios is not constantly applied to the P4, but rather a maximum setting.

jaybee
 

5150Joker

Diamond Member
Feb 6, 2002
5,549
0
71
www.techinferno.com
Doh wish I posted before you replied Krellor. You should consider the Asus P4B533-V, that's the next board I'm going to try out now :D It's confirmed to have the 4:5 at >133 fsb so that's perfect. I think this board really sounds like a winner! The only drawback is that it costs a premium--$170 and up.


533MHz Front-Side-Bus support
The P4B533-V supports all socket 478 P4 processors including Willamette and Northwood up to 2.4GHz+. The 533MHz FSB increases bandwidth and improves overall system performance.


ASUS POST Reporter?
An unique onboard speech IC chip and ASUS POST Reporter? provides clear explanations of system errors for quick and easy optimization. The P4B533-V also includes Winbond® Voice Editor allowing users to add customized system voice warnings and multi-language support.


ASUS Multi-Language BIOS


ASUS Q-Fan technology
Quiet and efficient fan operation that intelligently adjusts CPU fan speeds according to system loading. The result is maximum fan power when you need it most and quiet operation when you don't.


6 USB 2.0 ports
The ASUS P4B533-V features USB 2.0 support. USB 2.0 is the latest connectivity specification for peripheral devices and features transfer speeds of up to 480 Mb/s. Approximately forty times faster than conventional USB 1.1, USB 2.0 is backwards-compatible supporting all the USB devices of today and tomorrow.


ASUS Mylogo2?
Get rid of boring boot up screens. ASUS MyLogo2? personalizes and adds style to your system with customizable boot logos with up to 256 colors.


ASUS EZ Plug?
The ASUS EZ Plug? power connector lets you use your existing power supply and eliminates the need to buy a special ATX 12V power supply necessary to support your P4 CPU.


ASUS EZ Flash?
Updates BIOS before entering operating system. No more DOS-based flash utility and bootable disks required.


Powerful Integrated Graphisc
The P4B533-V delivers powerful integrated 2D and 3D graphics for functionality and value. Add-in card (DVI/TI OUT) supported.


Expandability
The P4B533-V is ultra-expandable with 6 standard PCI interfaces and connections for 6 USB 2.0 ports. A total of up to 4 IDE devices are also supported.


Extreme Overclocking
ASUS P4B533-V offers the most overclocking options available to maximize your system performance.
Easy DIP Switch or Jumperfree? overclocking from BIOS
Flexible CPU Core Voltage Adjustments in 0.025V increments over defaults
Accurate 1MHz adjustments of system-bus-frequency
Adjustable memory voltage
Adjustable AGP/PCI freqency setting and CPU/MEM frequency ratio
Rock-solid stability

ASUS Reliability
All ASUS motherboards are designed and tested to meet the highest quality standards. Responsive customer support and frequent BIOS and driver updates ensure that you're getting the fastest, most reliable performance - all the time. All ASUS motherboards are also backed by a 3-year limited warranty.


Comprehensive Software Bundle
All ASUS motherboards include a valuable software bundle of popular third party programs that enable you to enjoy the full capabilities of your ASUS product:
Trend® Micro PC-cillin 2002 anti-virus program
ASUS® PC Probe for system monitoring
Cyberlink® PowerPlayer SE, Video Live Mail

Key Specification Summary

Supports Intel® Pentium® 4 socket 478 processors
Intel 845G and ICH4 chipset
3 x DIMMS slots for up to 2GB of PC2100/PC1600 DDR SDRAM support
1 x AGP 4X (1.5V only)
2 x UltraDMA/100/66/33
6 x USB 2.0 ports
6 PCI slots
C-Media CMI-8738 MX 6-channel audio (optional)
Intel® 82562ET PHY (optional)
ATX form factor

 

JamesC

Member
Jun 4, 2002
45
0
0
Where did you hear that about the asus Joker, was that a review, i sure would appreciate it if you could point me in the direction of some info on that board.

Also everybody who owns the BG7, what is your impression of the board. i read somewhere (cant remember where, sorry) that it seemed a bit cheap in construction in comparisson to say the bd7II. All comments appreciated as i am thinking very seriously about purchasing this board.

Thanks,
James:)
 

Lance22

Member
Jun 5, 2002
61
0
0
Damn joker, I thought that I had almost decided on the board that I want, but now you throw out that Asus board...Im looking to start purchasing components in about a week or a week and a half, so around that time I will be seriously researching boards etc...I wonder if there will be boards available that use the p4x333 chipset from via??

Lets us know what happens with that board joker. =]


thx!
 

Krellor

Member
May 14, 2002
30
0
0
Well I have been pondering my motherboard for about 2 to 3 weeks now. Waiting to see which one I liked the best. Of course you would go and post something like that right after I order. :p

That does sound like a sweet board though. Who knows maybe someone will get one in time to test it before my RMA time runs out. ;)

Thanks for the update.
 

5150Joker

Diamond Member
Feb 6, 2002
5,549
0
71
www.techinferno.com
Hi guys,

I haven't been fortunate enough to get a review on it but here's a post from someone who bought the P4B533-V and he seems to love it. Also if you go to Asus's website and download the tech manual for the motherboard it lists all the details you could ever want about this board--although it doesn't mention supporting 4:5 in the manual, it does indeed have it in the bios. The board supports vcore of 1.5-.1.7 and if you enable overvolt through jumpers on the board, it goes to 1.8 v. Memory voltage adjustments available are 2.5v, 2.6v, 2.7v, 2.9v (no 2.8v listed for some odd reason). You can also adjust agp voltage from 1.5-1.7v which is pretty nice. There's a boatload of other features included with the board that would take me forever to type. Best thing is go to their website and download that pdf with the tech info, it's about 25 pages long and gives nice detailed info. I was going to order the board today from an online retailer that I found on pricewatch but once I checked their reseller ratings I decided not to do it (they had 3.9 out of 10 rating). I'm going to have to wait until newegg gets a shipment of these boards before I buy one since that's pretty much the only online retailer I trust.

Edit: Just emailed newegg asking them if they can special order the board for me. Hopefully the will! :)