Unfortunately, there is no "R182" modification guide available for the K7S5A Pro board (yet?). The chipset voltage circuits on the Pro board is, as you have noticed, different from the K7S5A "classic".
| BIOS downloads: | ||
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Latest official BIOS files: For the K7S5A v. 1.x/3.x only: Look here. For the K7S5A Pro v. 5.0: Look here. |
Latest honey X Overclocking BIOS files: For v. 1.x/3.x boards only: OC 030327beta, OC 021029, OC 020626, OC 020430 For v. 1.x/3.x and Pro 5.0 boards: OC 030811, OC 021209b, OC 030120, OC 030110, OC 021209 (If in doubt, use the 021209b) Mirror site |
AMI flash tool: Version 3.35 Version 3.33 Version 3.29 |
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The unofficial K7S5A motherboard guide Beginner's guide to overclocking the K7S5A Read this before posting in the Problems with K7S5A section Bad Caps? What to look for |
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Lost Cmos/Mem detection/coldboot issue fix (R182) improved
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 Oken |
Re: Lost Cmos/Mem detection/coldboot issue fix(R182) improve | ||
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Posts: 3330 (07/01/03 11:31:59) |
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pbuscher |
Re: Lost Cmos/Mem detection/coldboot issue fix(R182) improve | ||
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Posts: 70 (07/01/03 16:12:45) |
I sure wish I can fix this problem w/o soldering...
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VirusOnline |
@KevinN206 coldboot issue fix(R182) improve | ||
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Posts: 65 (07/02/03 06:54:49) |
Did You try already not to switch the computer on and off again and again, but to switch it on. Then wait a minute. Switch it off and after a few seconds on again.
If this works it would probably be better for your components, and also it would somewhat proof, that this is the coldboot-issue described in this thread. After proofing this you can still aply one of the possible fixes... |
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honey X |
Re: @KevinN206 coldboot issue fix(R182) improve | ||
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Posts: 1050 (07/02/03 08:11:18) Bios Magician |
A simple RESET will prove this too without the need to turn it on and off.
Whats about the Pro, somebody must be the first to find out how and where on the Mobo the resistor must be applied. Best way would be to find first the voltageregulator and check the voltages at its pins. One must be at least 1.8V. The pin with the lowest voltage would be the one where to apply the fix. |
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mariegriffiths |
Please, a Pro fix please | ||
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Posts: 1 (07/04/03 11:35:46) |
It crashed again today.
Ruining the launch of my web site www.holidayreport.co.uk :-( |
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honey X |
Re: Please, a Pro fix please | ||
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Posts: 1050 (07/04/03 11:57:55) Bios Magician |
Hmm, normally this problem doesnt cause the system to crash. Are you sure its a coold boot problem and not a heat problem or something else?
It seems also, nobody is following the link to Mr.Athlons page due some kind of ignorance to see what he says there about this issue and how to fix it if you cant apply the fix like on the Pro one. I just always hear: "I want it fixed on my Pro Mobo." But if all of you would follow the link and read what else can be tried, you would know what to do. So here is a copy and paste of his suggestions: "If you can't do 1), you can consider the following: 2) Overclock the FSB. (Use the OC BIOS or the chfsb utility and run 138/138 or higher.) This has helped reduce the problem on a number of boards. It is thought that this helps sometimes because it makes the 735 chip run hotter. 3) Turn the option for "Quick Boot" off in the BIOS. This has helped a number of boards. It this thought that this helps sometimes because it allows the 735 to get a little hotter before booting. 4) Remove the 735 heatsink. This lets the chipset run hotter, which can reduce the problem in some cases. 5) Cover the 735 heatsink with some thin antistatic foam (cut a chunk from the sheet that the motherboard came in) to let it get a little warmer. 6) If options 1-5 don't work, keep the 735 extra cool by putting a good heatsink on it with a fan." |
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SilverSurfer |
k7s5a buy a new one? | ||
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Posts: 2 (07/04/03 12:14:57) |
hi people,
i am from germany and stopped at this forum by searching for my problem in google. I got the same problem like you all and i cant change the hardware on my board.(Sorry english not so well). I have only one question, i didnt find an answer... If i buy the k7s5a again NOW, will this problem be solved with a newer board, or does this occur on all of them?? My friend got one too and hes nearly the same hardware as me, and he doesnt have this problems. Hope you answer my "stupid" question.:-) SilverSurfer |
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honey X |
Re: k7s5a buy a new one? | ||
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Posts: 1050 (07/04/03 21:44:25) Bios Magician |
No problem, Im from germany too.
There are no stupid questions, just stupid answers but you must admit, if you had followed a bit this discussion, you would see even the K7S5A Pro owners are suffering by this, so there is no warranty. Its a kind of luck. |
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SilverSurfer |
Re: k7s5a buy a new one? | ||
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Posts: 2 (07/04/03 22:09:20) |
thanks for your anwer honey x.
I think i will try to buy a new K7S5A today and sell the old one on ebay. My problem only occurs on cold boot, so if it doesnt happen the first time i test my new board, the problem is solved. If not....? I dont know, maybe i try another board. But i like the K7S5a. It worked well before i bought this 512 MB DDR Ram. grhhhhh. And no board is as cheap as this one. |
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pbuscher |
Strange... | ||
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Posts: 70 (07/20/03 09:45:08) |
Well, When I went from my old PC133 Ram to DDR ram, I was having this problem constantly. So everytime I booted up, I would just wait in BIOS until the CPU temp got to be 30C, then it was safe and would boot into windows fine. But just recently I got a new PSU - a Antec TruePower 430W. I originally had a Lite On 145W. With the new PSU I never had the the problem anymore! Plus, I'm able to overclock my CPU a little more stable! Originally, it was only stable at 138FSB, but now its stable at 143FSB!!
I guess all I needed was a new PSU! Could this problem possibly be caused by needing more power? |
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honey X |
Re: Strange... | ||
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Posts: 1050 (07/21/03 03:36:22) Bios Magician |
An insufficient PSU will of course cause simmilar results, but not all systems who were suffering by this issue could be fixed with a stronger PSU.
Its like with Influenca and SARS. Both are looking the same the first time, but the medicine for Influenca doesnt work for SARS because its something different. |
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AMDAddict |
A (relatively) satified customer | ||
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Posts: 29 (07/25/03 10:07:15) |
I'm a long time user of the K7S5A and struggled with the cold boot problem in the early days. My $.02:
1. You don't have to cycle power several times to get around the problem ... just hold the reset button (assuming you have one) for about 5-10 seconds after powering up. It will hold off the boot long enough for the chipset to heat up. 2. Try overclocking to 138/138. All you need is a HoneyX OC BIOS (Thanks HoneyX!!). It may well work for you ... no soldering required. 3. The R182 fix also worked for me. It's not that hard to implement - assuming you have a soldering iron with a pencil tip and practice a bit beforehand. Soldering tips:You don't need a lot of solder. Most people use way too much. In fact, it's best to apply a small amount to the connection points and the component leads before placing the component on the board. Then just hold the resistor in place and heat up the two 'tinned' surfaces and it should connect just fine. The solder joint should have concave surfaces ... not convex. Believe me - I learned to solder from a NASA certified tech and his work is passing over your house right now! |
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Saikai |
Re: Lost Cmos/Mem detection/coldboot issue fix(R182) improve | ||
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Posts: 5 (07/28/03 01:05:14) |
Last week I fixed my 8 PCs (K7S5A v3.1 mobos, 256MB PC2100 generic, 64MB GF2 MX400, LAN card, 40G Seagate) with R182 fix and since then I never had a lost CMOS problem. But before that it was terrible, almost every day I experienced lost CMOS even with honey X bioses. Thanks to you people my problem was solved!!! I am managing a Computer Cyber Cafe.
My only concern is one of my PC is still experiencing CONFIGMG error on coldboot. Why is that? Do I need to reinstall my windows? Regards...  |
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ArmadilloBoy |
R182 fix isn't working | ||
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Posts: 9 (07/28/03 07:08:20) |
I am still having trouble with this no post on cold boot problem. I have done the R182 fix twice...once with the capacitor, now without. No luck. I tried taking off the chipset heatsink and letting it run that way (with and without insulating foam)...no luck. Then I re-appied according to the chipset mod instructions..no luck. I went and bought a Antec TruePower 430W power supply yesterday and put that in...no luck. I tried overclocking to 138/138 (and 143/143)...no luck. I've even tried all these things in different combinations to no avail.
 To summarize, I've tried just about everything I've seen suggested here. Are there any more ideas? Perhaps I should add a second resistor to the one I already have on? If I do this, can I simply wrap the leads of the second resister around the leads of the first and solder them together? Or do I need to just accept the fact that my board is going to do this no matter what and finally give up? 
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honey X |
Re: R182 fix isn't working | ||
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Posts: 1050 (07/29/03 08:30:13) Bios Magician |
If everything fails, then you could try the following fix.
Its a copy and paste of MrAthlons "other (older) way" to fix it. Never tried this method, so cant say it works or not. MrAthlon Member Member # 4000 Member Rated: posted 26. September 2001 02:51 PM -------------------------------------------------------------------------------- I'm glad to know that this is working for others as well... Anyone that finds that they can boot with the Reset button pressed, but not otherwise, PLEASE post here with the exact brand and model number of your power supply. (I am using KME PX-300W power supplies, and I have tried several of them.) The Capacitor fix works like this: Find a small electrolytic capacitor (little black/brown/blue thing about the size of a pencil eraser) in the 1uF to 10uF range and trim the leads to about 5mm (1/4 inch). Then stuff the leads into the little black connector on the end of the wires coming from the reset button in your case. You can stuff the leads down from the top, or in from the sides where the metal shows through. Be sure to get the "polarity" right -- when the reset connector plugs on the motherboard, the ground pin is the one closest to the PCI slots. You MUST orient the capacitor so that the side marked (-) goes to this ground pin. (Otherwise the capacitor may short and cause your computer to reset by itself. Worst case, you'll have to use a new capactior.) If this works for your motherboard/power supply, then you may want to solder the capacitor to the back of the motherboard for a permanent installation. |
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bertsbane |
Suffering from the lost BIOS problem | ||
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Posts: 2 (08/21/03 17:44:18) |
I have three systems which have the problem of randomly losing the bios settings.
I have changed the batteries and due to 3 systems being involved must blame the motherboard as everyone else is. I tried the resistor fix, but that resulted in a non-booting system. I Have the latest bios from ECS 02/10/29. Is there something else I can try? I can't figure it out after reading all of these messages...... HELP!! |
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honey X |
Re: Suffering from the lost BIOS problem | ||
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Posts: 1050 (08/22/03 01:03:03) Bios Magician |
Quote: See above your post. You can try Mr.Athlons prior capacitor fix. |
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bertsbane |
Re: Lost Cmos/Mem detection/coldboot issue fix(R182) improve | ||
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Posts: 2 (08/22/03 03:41:38) |
Can I then "AssUme", that other than the resistor or capacitor modification, there is nothing else to try?
And... ECS has no fix either and continues to ignore the problem? Which is all fine and good, just want to quit wasting my time worrying about the problem and can just live with it. I will re-read the capacitor mods details, it seemed to me the capacitor was so huge (physically) I didn't want to try it. Only sad part is I will be unable to sell these systems in the future as I build myself newer systems. Can't sell a motherboard which resets for a hobby. And pardon the blasphemy, but can you guys recommend a board to consider if I wanted to take the components on the board now and trasfer it to another more reliable motherboard. In other words with support for 266MHz clock and PC2100 memory or PC 133 memory? Thanks loads. |
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honey X |
Re: Lost Cmos/Mem detection/coldboot issue fix(R182) improve | ||
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Posts: 1050 (08/22/03 07:25:54) Bios Magician |
Take closer look on what I was reffering to. My capacitor fix is just an improvement of Mr.Athlons resistor fix , but Mr.Athlons capacitor fix isnt neither an improvement of this, not its the same Im talking about in my first post. Its something completely different that might fix it as well. You have to add a small capacitor to the reset button leads.
If you plan to change the Mobo anyway, I would go for an Asrock SIS748 based one and get some DDRAM memory as well. They are known to be stable As a Rock and very fast too. |
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SilentBob1999 |
Re: Lost Cmos/Mem detection/coldboot issue fix(R182) improve | ||
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Posts: 2 (08/22/03 12:06:51) |
Measure chipset voltage.
I would like to measure my chipset voltage both before and after applying this fix. Can someone either tell me or show me with a picture what two points I want to measure between (with a multimeter) to determine what the voltage to the chipset is? Thanks. |
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- General K7S5A posts
- K7S5A BIOS
- Processors on K7S5A
- PSU issues with K7S5A
- System building with K7S5A
- Problems with K7S5A
- K7S5A tweaks and mods
- K7S5A useful links
- Overclocking the K7S5A
- Random Rants
- ECS L7S7A2
- Other ECS and PCChips hardware
- Other motherboards
- General hardware
- Software - Apps
- Software - Games
