V266b??

[stevo1210]

Hello Everyone,

I have a motherboard here with an AMD Duron 750MHz CPU pre-installed. On the PCB there are the words "V266B REV. 3.0" printed in white.
From some information i've gathered, I think this motherboard is a Jetway V266B, the image on the internet shows a Jetway board with a green PCB, but the board I have here has a blue PCB.
The PCB is a dark blue colour and the board has 1500uf 6.3V OST RLX caps around the CPU. On the VRM input there are 4x GSC LE 1500uf 16V caps. All the caps are in good physical condition which is strange for after 5 years of use....
This motherboard belongs to my friend and he wants to trade it for my ever reliable Asus P3V4X motherboard.
The only concern I have about this board is that there is an Multi-Layer Ceramic Capacitor soldered onto two pins on the CPU underside. Is this a factory fitted item on was it soldered on afterwards?? The soldering is clean with no solder blobs anywhere so I'm guessing it was fitted on in the factory.

Thanks.

[stevo1210]

Re: V266b??

I'll get some images uploaded soon after I can resize them.

[kc8adu]

Re: V266b??

not unusual to see parts added to bottom of boards as a production change.
sometimes to fix glitches found once they were sold.
i add such parts when doing overclocking grade rebuilds or for high reliability.

[stevo1210]

Re: V266b??

Hello Everyone,

I finally got around to uploading images of this motherboard. It's quite amazing to see that a whole row of GSC caps is still OK even though this board was made in 2001.
6 years of use for GSC caps must be a record.... anyway.... there is an extra multilayer chip capacitor soldered onto the underside of the CPU socket.... Is this a factory thing or an aftermarket user add-on?? The soldering of the cap is very fine and very clean.... ao i am guessing that it was factory installed??

The board is fine overall.... nothing wrong with it at all.... just the sight of GSC and OST caps make me wonder how long this board will hold up as for a daily use PC.

Best thing about the board is that it can take both SDRAM and DDR RAM.... I just installed a 256MB chip of PC133 SDRAM to make it a little better performance wise.

The only thing I have to do now is to find a new CPU. It currently has a Duron 750MHz.... I have to find one of them AMD Athlon ones that are over 1.2GHz.... Athlon XP I think they're called??

I have no idea because this is the first AMD computer i've owned. Every other PC i've owned was an Intel based

Does this board have a 3 phase VRM or am I counting the wrong coils??

Thanks.

[stevo1210]

Re: V266b??

I just found some more information on this motherboard.... It actually supports up to an AMD Athlon XP 2400+. Looks like it will work with anything below that too.... only problem now is where to find an AMD Athlon Socket A chip these days.

[shadow]

Re: V266b??

Second hand is your only real choice really. I would not mind getting my hands on a Socket A CPU for a reasonable price either, something like an Athlon XP 2600+ or higher. However these CPU's seem to sell for a fairly high price on eBay here in Australia. A user on this forum (pentium I think) was (and probably still is) selling some CPU's in the "For Sale" section on this forum.

Just found the thread.

https://www.badcaps.net/forum/showthread.php?t=3734

He still has an AMD Athlon XP 2000+ available (according to the thread) for a reasonable price of $10 Canadian. Postage cost should be very little mainly due to the weight.

[stevo1210]

Re: V266b??

I thought everything was OK when I had a look at the CPU support page on the Jetway site.... but.... The BOM version of the board has to be 2 to support AMD Athlon XP CPUs.
My issue now is that my board is has a BOM number of 3, which is higher than 2 but i'm not sure if 3 is supported since it is not listed on the page.

BOM version X doesn't work with AMD athlon XP CPUs and my BOM version isn't X so I think I might be OK.

My PCB is version 3.0, but my BOM version is 3, not 2. My BIOS is also the newest released.

One part i dont really understand is the fact that I only have 1 USB header but normal V266B boards have 2 headers. Also the PCB of my board is blue and not green, like on the website which is very strange.
I need some help in determining if AMD Athlon XP CPUs will work with this motherboard.... I would really like to upgrade from the Duron 750 it currently has.

At the moment I am looking for AMD Athlon XP CPU's from ranges of 1400+ to 2400+ but the CPU support issue is stopping me from purchasing one.



Thanks.

[Phenos]

Re: V266b??

This board go's up to Athlon 2400+ and Athlon 2600+ with 266Bus (very rare) cpu. At least mine does.

I have a "Blue" V266B rev 3.0 running here, All 7 1500uF GSC's on CPU output were blown. i replaced them with 4 samxon GC 3300uF caps. and the rest of the board is recapped as well to make sure it won't get back with the existing caps crapped out.

[stevo1210]

Re: V266b??

This board go's up to Athlon 2400+ and Athlon 2600+ with 266Bus (very rare) cpu. At least mine does.

I have a "Blue" V266B rev 3.0 running here, All 7 1500uF GSC's on CPU output were blown. i replaced them with 4 samxon GC 3300uF caps. and the rest of the board is recapped as well to make sure it won't get back with the existing caps crapped out.

All my CPU output caps are OST, only my CPU input caps are GSC. Would you be able to know what BOM version your board is??
My BOM version is 03 but the Jetway site says it needs BOM 02 to run AMD Throughbred CPUs.

I emailed Jetway a few times but it seems like no one bothers to read my email.

Model Name : V266B PCB Rev 3.0

BIOS Version : A11

CPU FSB Ratio Result BOM Version [X] [02]
Duron DxxxxAUT1B /1.6V
Duron 600 100 6 OK OK
Duron 650 100 6.5 OK OK
Duron 700 100 7.0 OK OK
Duron 750 100 7.5 OK OK
Duron 800 100 8.0 OK OK
Duron 850 100 8.5 OK OK
Duron 900 100 9.0 OK OK
Duron 950 100 9.5 OK OK

Morgan DHDxxxx AMT1B/1.75V
Duron 1G 100 10 OK OK
Duron 1.1G 100 11 OK OK
Duron 1.2G 100 12 OK OK
Duron 1.3G 100 13 OK OK
Duron 1.4G 100 14 OK OK

Athlon Axxxx AMT3B/1.75V
Athlon 700 100 7 OK OK
Athlon 800 100 8 OK OK
Athlon 900 100 9 OK OK
Athlon 1G 100 10 OK OK
Athlon 1.1G 100 11 OK OK
Athlon 1.2G 100 12 OK OK
Athlon 1.3G 100 13 OK OK
Athlon 1.4G 100 14 OK OK

Athlon AxxxxAMS3C/1.75V
Athlon 1G 133 7.5 OK OK
Athlon 1.13G 133 8.5 OK OK
Athlon 1.2G 133 9 OK OK
Athlon 1.33G 133 10 OK OK
Athlon 1.4G 133 10.5 OK OK

Athlon (0.18u) AHDxxxxDMS3C/1.75V
Athlon 1G 100 10 OK OK
Athlon 1.1G 100 11 OK OK
Athlon 1.13G 133 8.5 OK OK
Athlon 1.2G 100 12 OK OK
Athlon 1.2G 133 9 OK OK
Athlon 1.3G 100 13 OK OK
Athlon 1.33G 133 10 OK OK
Athlon 1.4G 100 14 OK OK
Athlon 1.4G 133 10.5 OK OK

Athlon (0.18u) AXxxxxDMT3C/1.75V
AthlonXP 1500+ 133 10 OK OK
AthlonXP 1600+ 133 10.5 OK OK
AthlonXP 1700+ 133 11 OK OK
AthlonXP 1800+ 133 11.5 OK OK
AthlonXP 1900+ 133 12 OK OK
AthlonXP 2000+ 133 12.5 OK OK
AthlonXP 2100+ 133 13 OK OK

Athlon (0.13u) AXDAxxxxDKV3C/1.65V
AthlonXP 2000+ 133 12.5 NO OK
AthlonXP 2200+ 133 13.5 NO OK
AthlonXP 2400+ 133 15 NO OK
AthlonXP 2600+ 133 16 NO OK

Athlon (0.13u) AXDAxxxxDUT3C/1.60V
AthlonXP 1800+ 133 11.5 NO OK
AthlonXP 2000+ 133 12.5 NO OK
AthlonXP 2100+ 133 13 NO OK
AthlonXP 2200+ 133 13.5 NO OK
AthlonXP 2400+ 133 15 NO OK

Athlon (0.13u) AXDAxxxxDLT3C/1.50V
AthlonXP 1700+ 133 11 NO OK
AthlonXP 1800+ 133 11.5 NO OK
AthlonXP 1900+ 133 12 NO OK

Athlon (0.13u) AXDAxxxxDKV3D/1.65V
AthlonXP 2600+ 166 12.5 NO NO
AthlonXP 2700+ 166 13 NO NO


http://www.jetway.com.tw/oldweb/evis...rt/V266B30.htm

Now that I have found the CPU support page. I still don't understand the part about the BOM numbers.... Does it have to be 02 to run AMD Throughbred (0.13u) CPUs or does it mean that anything higher than 02 will work??

If I could still find AMD Athlon XP Palomino series CPUs then it would work fine with no issues, but I looked all over ebay and all they sell are Throughbred ones and they require a BOM version of 02.... I have version 03 so I have no idea if my board is compatible or not.

BOM Revision
On top of serial port you can find the following label indicating lot information. The BOM revision is shown on the cell after “V”. In the example below the BOM revision is “12”.

http://www.jetway.com.tw/oldweb/evis...t/identify.htm

Theres this BOM revision identifier instruction from the Jetway site, I have checked mine and it says 03 and not the incompatible version X.


Thanks.

[stevo1210]

Re: V266b??

Ok, now I have completely left the upgrade idea out. I will continue to use the Duron 750MHz CPU.
But.... I have some problems now. I can't do a warm boot (e.g restart) when I restart the PC, it won't restart, I just get a blank screen.
When I save the BIOS settings and reboot, same thing.
I don't know why this happens though, I even reset the CMOS by removing the battery and it still does this.
Now it even asks which hard drive to boot from even though I only have 1 HDD.

Could it be the "400w" Deer PSU that i'm using with this system?? I had a 300W FSP group PSU in there before.... until I traded it for something else.

It currently runs Windows 2000 Professional with no issues apart from not restarting. In fact....I'm posting this thread from it now....

[stevo1210]

Re: V266b??

I'm wondering if I can overclock this Duron 750Mhz CPU. I'm not sure how to overclock it. Do I use the jumpers to overclock it? I can't find any BIOS options to change the speed or multiplier options and it's my first time that I'm going to be overclocking something.

Thanks.

[bgavin]

Re: V266b??

Why bother? For forty dollars, you can buy an Athlon 2600 or so. Duron is the stripped down version of Athlon (same as Celeron is to Pentium). IMO, both are better used as test processors on suspect boards.

The best of the AMD 32-bit processors support the 400 FSB speeds on nVidia chipset boards. These provide the most bang for the buck with Athlon-XP processors. My primary workstation is a W6779NMS MS-6570E-LSR K7N2 Delta2 by Microstar (MSI) with a 2600+ processor and 400 FSB. This is a decent speed and performs well with WinXP, VMWare, etc and 2gb DDR installed.

[RJARRRPCGP]

Re: V266b??

I thought everything was OK when I had a look at the CPU support page on the Jetway site.... but.... The BOM version of the board has to be 2 to support AMD Athlon XP CPUs.
My issue now is that my board is has a BOM number of 3, which is higher than 2 but i'm not sure if 3 is supported since it is not listed on the page.

BOM version X doesn't work with AMD athlon XP CPUs and my BOM version isn't X so I think I might be OK.

My PCB is version 3.0, but my BOM version is 3, not 2. My BIOS is also the newest released.

One part i dont really understand is the fact that I only have 1 USB header but normal V266B boards have 2 headers. Also the PCB of my board is blue and not green, like on the website which is very strange.
I need some help in determining if AMD Athlon XP CPUs will work with this motherboard.... I would really like to upgrade from the Duron 750 it currently has.

At the moment I am looking for AMD Athlon XP CPU's from ranges of 1400+ to 2400+ but the CPU support issue is stopping me from purchasing one.



Thanks.

Just get a "T-bird" and test it then. Those are before the XPs, which are the "Palominos" and "Thoroughbreds". T-birds go up to 1.4 Ghz with 133 Mhz FSB.

[pentium]

Re: V266b??

Wow. I'm recapping the exact same board right now.

[pentium]

Re: V266b??

Second hand is your only real choice really. I would not mind getting my hands on a Socket A CPU for a reasonable price either, something like an Athlon XP 2600+ or higher. However these CPU's seem to sell for a fairly high price on eBay here in Australia. A user on this forum (pentium I think) was (and probably still is) selling some CPU's in the "For Sale" section on this forum.

Just found the thread.

https://www.badcaps.net/forum/showthread.php?t=3734

He still has an AMD Athlon XP 2000+ available (according to the thread) for a reasonable price of $10 Canadian. Postage cost should be very little mainly due to the weight.

Speaking of that, that one is long gone but I got another one in about three months back however it's in my V266B right now and it seems that while this processor is rated for 2Ghz the board maxes out at 1.6Ghz unless I missed something.