WTF are these reboot problems with 845D & SIS 645 boards?

[athlonrig]

Ok when I got my 1.8a a couple weeks ago I popped it in my Soyo P4S Dragon and started overclocking it. I changed the bios settings to find the max stable speed without ever powering off the computer. I finally had it nailed down to just under 2.7 ghz and let it run for about 4 days constant stress testing. I then found out that when I turn the computer off it won't boot again! If I push the reset button once, twice, however many times I finally get it to boot again and it works flawlessly. Sometimes it will boot fine 8 times in a row...then the next 8 it won't and I have to clear the cmos, etc. to get it to work again. I have a 1.5 willamette and it works fine with that cpu. I went out and bought an Abit BD7-RAID (they gave me a regular BD7, idiots) and messed with it last night. It has the same exact problem as the Soyo P4S did. At default speed it works great and boots everytime...but when I start changing the fsb sometimes it boots and sometimes it just sits there.

IS THERE A BOARD FOR A NORTHWOOD THAT DOES NOT HAVE THESE PROBLEMS??? If so please let me know so I can go buy it. I think ALOT of these boards have problems that manufacturers need to take care of. I know they aren't "guaranteed" to be able to overclock, but when it runs perfectly stable at a given speed, but then can't boot at that speed?!?!

Also have you noticed that all these reviews never see any of these errors when they give them 9.5's out of 10??? Kind of makes me mad because either the reviewers get ACTUAL working boards that don't show these errors or they just lie and say it works great...

 

[Uclagamer_99]

mebbe you're overclocking too high?

 

[tornadobox]

<< mebbe you're overclocking too high? >>

 

[athlonrig]

no that isn't it even when i go to fsb speeds from 100-110 it will do the same thing. this chip runs stable at almost 2.7 which i have tested it at, so i know it isn't the chip itself. i also know it isn't a limitation of what these boards can do because i've had them at 150+ while obtaining those speeds. it has to be either a bios defect or an actual defect in these boards that arrises when you go into softmenu and change settings and when the boards boot.

 

[THUGSROOK]

im running a Asus P4S333 SiS645 board and i have no idea WTH you are talking about

no reboot problems here.

 

[JimmyJoe]

What are all of the components in your system (including Power Supply)?

Have you tried to run with just the bare minimum components installed? Like motherboard on cardboard (not in case), memory, vid card, and hard drive?

Just wondering because with two different motherboards experiencing the same problem that would lead me to believe that maybe it is not the MB causing the problem.

 

[loubol]

I have the same board with a 1.6A at 2.32Ghz and it does the same exact thing. I have a Antec SX635 with the stock antec psu 350 watts. I have no other problems with the system, has been running stable for weeks. Also it restarts fine it is only on cold boots that this happens.

 

[o1die]

No reboot problems with the epox 4sda+ running at 138 fsb and 1/1 ratios. Higher than 138, and my modem disconnects.

 

[Lycan]

Mine kills me Sound Blaster at 146Mhz

No reboot problems though.

I think the 4SDA+ has the advantage of jumpers rather than the BIOS
for adjusting/setting the v-core.

Sounds like the standard cold boot problem where the MB
doesnt supply anything apart from the standard 1.5volts
until the BIOS settings are loaded.

 

[THUGSROOK]

cold boot and reboot issues usually have something to do with the bios NOT adding your extra voltage until the CPU posts.
so it has to get "that far" on default voltage before its boosted.

there is a hack called the "vid pin trick".
however the Asus P4S333 SiS645 motherboard has a built in jumper that does the same thing. (it will boost you default voltage to 1.6v even BEFORE the cpu posts)
AFAIK thats the only P4 moboard that has that jumper.

 

[DolfanJay]

thugsrook is right I remember when the asus cusl2 came out a lot of people had the same problem they called it the cold boot problem. If your overclocked cpu couldnt post at default voltage you couldnt boot. So some people had to boot at default and then go into bios and recoverclock every single time the started their computer. I'm glad I didnt have that problem.

 

[Duvie]

Thug...I just got my p4s333, where is it at??? Is it something I can set in the bios or does it have to be jumper set?


Many report both MSI Ultra ARU and GA-8IRXP do same thing...

Also for some strange reason after I did a prime95 stress test for long period I notice I have not had a failed reboot in like 8 tries with my msi ultra...odd huh??? Even though that annoys me so I am sending it back...I also hat the lack of actual voltage being delivered even though i have it set at 1.65v...It is not my ps as many on net report same issue of .06-.08v less then what is set.

 

[THUGSROOK]

Duvie-
Its a jumper on the top left of the board - check your manual, and remember to add .1v to your "bios options" when choosing voltage (1.55v = 1.65v etc)