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P-200 MMX Not Working w/ V5 - Please HELP!

New MessageP-200 MMX Not Working w/ V5 - Please HELP! (modified 0 times) CCRay
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I recently purchased a V5 i-op on ebay for a grand total of $10 (shipping included). I had a spare p-200 MMX lying around and I had read that it was a direct drop-in for the v5's. I stuck it in and it POSTed just fine, but then it showed a split second of the win98 splash screen and rebooted. It will continue to reboot until you turn it off. If you turn it off and turn it back on, eventually it will continue on. If it continues, it will run fine until the next time you restart it. (even a warm reboot will have it restarting itself repeatedly.) I don't think it's an overheating problem because it runs windows just fine when it decides to load. Using the BIOS info on one of the restart sessions, I found it ran consistantly at 98F even after a half hour of sitting.

I would really like this to work, I was impressed by it's perfomance when it did run. I was able to play MP3s in WMP 7 and the processor would only be at 15-20% usage.

Thanks in advanced to anyone who'll take the time to help me out.
Ray

BTW - I spent nearly 4hrs searching the boards. It appears everyone else has had no problems. In most cases the post would turn to "hey get an AMD K6-3" that, unfortunately I can't find ANYWHERE!! Thanks again - Ray

05-21-2005 00:59:06

New MessageRE:P-200 MMX Not Working w/ V5 - Please HELP! (modified 0 times) CCRay
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Another question:

Will this AMD work?

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=15921&item=6769798068&rd=1

if I'm not mistaken, the AFK means it has a low operating temperature... Correct? I don't necessarly need it to go 533MHz... 200 is fine with me. That cache sure would be nice...

thanks again,
-Ray

05-21-2005 01:03:23

New MessageRE:P-200 MMX Not Working w/ V5 - Please HELP! (modified 0 times) Lincoln_man
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Processor Electrical Specs
http://wmheg.physics.wm.edu/~norman/cpu_info/elec.html

All AMD processors you have to split the voltage, as the core runs around 2.2 volts
instead of 5 volts of the P-200.

05-21-2005 04:51:56

New MessageRE:P-200 MMX Not Working w/ V5 - Please HELP! (modified 0 times) CCRay
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P-200 is 5v? It says core voltage is 2.8v on the top... Am I mistaken? It does act like it's a power issue. I can run the BIOS as long as I want. It's not until it tries to use the HDD that it restarts.

Actually, it does something else kinda wierd: Sometimes when you turn on the power the screen remains blank.

Any suggestions on how to get this thing working?

It's a V5
all dip switches are in their origional positions
I haven't done ANY processor motherboard mods
it has the 540b bios upgrade
I added a 20GB Hitachi Travelstar HDD
Added a processor fan on stock heat sink.

05-21-2005 10:32:16

New MessageRE:P-200 MMX Not Working w/ V5 - Please HELP! (modified 0 times) Tom61
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>Added a processor fan on stock heat sink.

You mean the IO's heat sink? It won't fit a P200 without modification. The Rise processor fits *inside* the heatsink, and it's not the same shape as a P200MMX. It might sit on top, but it's not effectively cooling the processor.

05-21-2005 17:42:00

New MessageRE:P-200 MMX Not Working w/ V5 - Please HELP! (modified 0 times) CCRay
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Sorry, forgot to mention: I used the heatsink off of my v1. I know the v5 heatsink won't work.

Thanks for pointing that out anyway, if I had used the v5 it surely would have cooked it.

05-21-2005 18:17:30

New MessageRE:P-200 MMX Not Working w/ V5 - Please HELP! (modified 0 times) Lincoln_man
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Yes you are right the P-200 is 2.8v but search the boards to, find the switch settings
or mod to get to 2.2v. Don't run the AMD at 2.8v.
05-21-2005 18:46:15

New MessageRE:P-200 MMX Not Working w/ V5 - Please HELP! (modified 0 times) CCRay
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I think I may have been a bit confusing.

I'm currently trying to get the Pentium 200 MMX to work, NOT the AMD. I was merely asking if the AMD would be a good purchase if you didn't wan't to solder the board (if I could just drop it in and set the voltage with the dip switches.)

My main goal of this thread was to find out if I had done something wrong when I put in the Pentium. I would really like the pentium to work because I had it already.

Thanks, sorry for the confusion. I appreciate all the replys.

-Ray

05-21-2005 19:06:57

New MessageRE:P-200 MMX Not Working w/ V5 - Please HELP! (modified 0 times) Tom61
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Have you done any diagnostics on the RAM? I seem to recall stuff like you're reporting on a normal PC could be cuased by RAM troubles.
05-22-2005 13:56:52

New MessageRE:P-200 MMX Not Working w/ V5 - Please HELP! (modified 0 times) CCRay
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I don't think it's RAM because if I put the Rise back in, everything works normally.
05-22-2005 19:32:59

New MessageRE:P-200 MMX Not Working w/ V5 - Please HELP! (modified 0 times) CCRay
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I think I may have just have a bum processor. I'm gonna see if I have another laying around.
05-25-2005 13:19:12

New MessageRE:P-200 MMX Not Working w/ V5 - Please HELP! (modified 0 times) Linuxguru
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It's probably a software issue, not a HW issue. The P200/MMX and the Rise CPU are not exactly equivalent, so if you install and configure Windows on a system with a Rise, and then replace the CPU with a P200/MMX, there may be some problems (I don't remember exactly what, but there was a Windows Trident display driver issue with the Rise).

The Rise is a pretty good CPU from a performance/heat measure, so you may want to stick with it for normal use. There is a performance advantage with the P200/MMX and the K6-II/III+, but it comes at significant cost in heat dissipation, so YMMV.

05-26-2005 00:30:46

New MessageRE:P-200 MMX Not Working w/ V5 - Please HELP! (modified 0 times) CCRay
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First of all, I want to thank everyone who has replied to this thread. I'm afraid I may have waisted your time. It seems to me that the processor has just gone bad. Judging by it eratic behavior, I'm thinking and electrostatic shock. (it was kept in a bin of various used parts for nearly 2yrs.)

I do, however, have another question. I went to the local used computer shop and picked up an AMD K6-2 300MHz CPU. I know that the standard passive heat sink system won't adiquitly cool this chip, so I have spent the entire night (it is now 3:14 A.M.) searching for the best fan solution. I know the Tennmax is the best because it runs on 5V and is slim. However, I already have a very small 486 fan/heat sink combo that I would like to use. It's a 12V .08A DC fan which, it just so happens, clips directly to the outer heat shield on the AMD processor (score!). I've been reading through the posts and have been dismayed to find there is no 12V lead off of the motherboard. I was intrigued by the idea that you could take the 19V+ and 5V+ and put them together instead of going to ground and you would get 14V. I tried this out. I soldered a lead to the 19V+ on the main connector and then connected the ground end to the 5V+ on CN12. This yeilded interesting results! When the power is hooked to the system and the system is off, the fan spins fast and loud. When I turn on the power the fan slows and quiets to it's normal range. Once you turn the power back off, it goes back to screaming fast and loud.

Is there a way to eliminate it from the FAST and LOUD part of running? I just want it to come on with the computer.

Also, before anyone mentions it: My fan WILL NOT start itself if you try to run on just 5V. If you spin it with your finger it will continue to spin, but hardly enough to properly cool the computer.

Sorry about a long post. I hope someone has an answer for me. I was trying to avoid resisters and gates and the such (I'm no EE)

Thanks for the time!
Ray Phillips

05-26-2005 02:09:58

New MessageRE:P-200 MMX Not Working w/ V5 - Please HELP! (modified 0 times) CCRay
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Nevermind the above post. Upon further searching of the boards (I think I'm finally figuring out how to find stuff!!) I found a link to a topic where someone had used a 5v relay... went down to RadioShack and picked one up. Works like a charm!
05-28-2005 00:59:31

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