| View previous topic :: View next topic |
| Author |
Message |
mavroxur
Joined: 06 Jul 2005
Posts: 1192
Location: Wichita Falls, TX
|
 Posted: Sat Sep 03, 2011 4:48 pm Post subject: info on unknown speed NexGen Nx586 |
 |
|
I was wondering if someone could shed some light on this NexGen CPU's speed. There's no P marking, so i'm not sure. I'm thinking it's an early P80, but need to know for sure.
Nx586-XXXX-4.0-CPC-202
AAL3697-P20F02XR-P28080XR
attached is a picture of it.
Any info is appreciated.
http://imageshack.us/photo/my-images/33/sany2555h.jpg/ |
|
| Back to top |
|
 |
jrmunro
Joined: 01 Feb 2003
Posts: 3149
Location: Vancouver, Canada
|
|
| Back to top |
|
|
mavroxur
Joined: 06 Jul 2005
Posts: 1192
Location: Wichita Falls, TX
|
| Posted: Sat Sep 03, 2011 7:15 pm Post subject: |
|
|
Unfortunately, my string isn't listed. And of the Nx586's that don't have the P string on them (Like Nx586-P75, P80, P90, etc) they dont list a speed for them. Was wondering if there's any way to tell from the product code on the chip. |
|
| Back to top |
|
|
jrmunro
Joined: 01 Feb 2003
Posts: 3149
Location: Vancouver, Canada
|
| Posted: Sat Sep 03, 2011 7:47 pm Post subject: |
|
|
| mavroxur wrote: |
Unfortunately, my string isn't listed. And of the Nx586's that don't have the P string on them (Like Nx586-P75, P80, P90, etc) they dont list a speed for them. Was wondering if there's any way to tell from the product code on the chip. |
I don`t know how to tell as I have a similar one that is not marked.
You could try sending a PM to mtx500 as he knows quite a bit about them or wait till someone else answers. |
|
| Back to top |
|
|
mavroxur
Joined: 06 Jul 2005
Posts: 1192
Location: Wichita Falls, TX
|
| Posted: Sun Sep 04, 2011 12:17 am Post subject: |
|
|
| I've spent probably 3 hours or so today, and have come up empty handed. I've seen the unmarked chips as being anything from a P80 to a P110, but nobody explains how they're marked. |
|
| Back to top |
|
|
Marcin
Joined: 02 Jan 2005
Posts: 8519
Location: Poland
|
|
| Back to top |
|
|
mavroxur
Joined: 06 Jul 2005
Posts: 1192
Location: Wichita Falls, TX
|
| Posted: Sun Sep 04, 2011 1:23 pm Post subject: |
|
|
| Marcin wrote: | | Most of them are P90s. |
Interesting, thanks for the info. Does anyone know how to decode the numbers on the chip to tell that? I can't seem to find a naming convention for the codes on the chip. I've seen P90's that have completely different codes.... Not sure why though. |
|
| Back to top |
|
|
Neon_WA
Joined: 08 Nov 2008
Posts: 7146
Location: Margaret River, West Australia
|
| Posted: Sun Sep 04, 2011 6:27 pm Post subject: |
|
|
only thing for sure I get from markings are
P20F02XR >> week 20 1995 (die manufacturing date)
P28080XR >> week 28 1995 (processor manufacturing date)
This is 2nd generation NexGen as the copyright is 94-95 & marked CPC-202
1st generation was 94 & CPC-101 or CPC-102
_________________
There are 10 types of people in this world:
those who understand binary and those who don't. ~Author Unknown
http://www.x86-guide.net/Neon-WA/en/collection.html |
|
| Back to top |
|
|
mavroxur
Joined: 06 Jul 2005
Posts: 1192
Location: Wichita Falls, TX
|
| Posted: Mon Sep 05, 2011 9:56 am Post subject: |
|
|
| So there's no way to tell the speed exactly, short of plugging it into a motherboard? Odd. |
|
| Back to top |
|
|
Windmiller
Joined: 24 Jun 2005
Posts: 1716
Location: Chapel Hill, NC
|
| Posted: Mon Sep 05, 2011 11:42 am Post subject: |
|
|
| mavroxur wrote: | | So there's no way to tell the speed exactly, short of plugging it into a motherboard? Odd. |
Correct.
At one point I was going to build machines using all of the Nexgen motherboards I have for testing speeds but there was never enough interest to do it. Might revisit this idea down the road. |
|
| Back to top |
|
|
mavroxur
Joined: 06 Jul 2005
Posts: 1192
Location: Wichita Falls, TX
|
| Posted: Thu Sep 08, 2011 8:51 am Post subject: |
|
|
| Windmiller wrote: | | mavroxur wrote: | | So there's no way to tell the speed exactly, short of plugging it into a motherboard? Odd. |
Correct.
At one point I was going to build machines using all of the Nexgen motherboards I have for testing speeds but there was never enough interest to do it. Might revisit this idea down the road. |
If you want to sell one of said boards, let me know  |
|
| Back to top |
|
|
Neon_WA
Joined: 08 Nov 2008
Posts: 7146
Location: Margaret River, West Australia
|
| Posted: Thu Sep 08, 2011 8:56 am Post subject: |
|
|
boards come in VESA & PCI styles
I have heard some VESA boards have troubles with the large heat-spreader Nexgen, so PCI so most suited for testing
_________________
There are 10 types of people in this world:
those who understand binary and those who don't. ~Author Unknown
http://www.x86-guide.net/Neon-WA/en/collection.html |
|
| Back to top |
|
|
mtx500
Joined: 21 Nov 2003
Posts: 117
Location: Nuremberg, Germany
|
| Posted: Thu Sep 29, 2011 4:13 pm Post subject: |
|
|
Sorry for the delay, I was on vacation and after returning busy for a while.
| Neon_WA wrote: | | This is 2nd generation NexGen as the copyright is 94-95 & marked CPC-202 1st generation was 94 & CPC-101 or CPC-102 |
Right. The 1st generation has the small silver heat spreader and is 75, 80, 90 or 100 MHz. 80 and 90 MHz being the most common.
The second generation is 90, 100 or 110 MHz and has the big silver heat spreader (without math coprocessor) or the big brown heat spreader (with math coprocessor). There is also a 3rd generation marked CPC-301 with big silver heat spreader that is 120 MHz and has a respective stamp on it.
| mavroxur wrote: | | So there's no way to tell the speed exactly, short of plugging it into a motherboard? Odd. |
Jup, that's the situation. And even if it boots up at 100 MHz you can't be sure that it was released for 100 MHz operation. The CPU might occasionally malfunction e.g. when hot. Only the manufacturer knows the critical data paths inside the CPU and wrote special test programs for these to be run as burn-in test.
Your's is most probably 90 or 100 MHz.
| Neon_WA wrote: | boards come in VESA & PCI styles
I have heard some VESA boards have troubles with the large heat-spreader Nexgen, so PCI so most suited for testing |
Right, I also had a NexGen CPU that did run only in one type of board (but I can't remember which). |
|
| Back to top |
|
|
|
![[ Hidden ]](https://cdn.cpu-world.com/forum/templates/CPUWorld/images/lang_english/icon_email.gif "[ Hidden ]"){kind=icon}
