fried memory

[RED Hot Machine]

I think I've just damaged my memory. I upped the voltage to 2.7 and it worked ok for a few hours. Now windows will not boot above the standard 133. This is with heat spreaders on the ram!!

Ive dropped everything back down to normal, till I can get the memory tested/replaced.

:(

[UnseenMenace]

So sorry to hear your news but if you can give us more information we may be able to help.

1) Were you running the 2.7 v to your mobo or to your memory ?
2) what memory settings were you running ?
3) What FSB were you running at the time ?

[RED Hot Machine]

Originally posted by UnseenMenace
So sorry to hear your news but if you can give us more information we may be able to help.

1) Were you running the 2.7 v to your mobo or to your memory ?
2) what memory settings were you running ?
3) What FSB were you running at the time ?

1) ddr at 2.7 using using mobo jumper settings
2) 8 8 8 3 7 2.5 3
3) 149

any help would be appreciated

[UnseenMenace]

I doubt that you have fried your memory, you have probably just hit the FSB limit with your current motherboard/memory configuration. To obtain some of the exceptionally high FSB speeds you will require exceptionally high quality memory and possibly rated higher such as PC2400 mushkin.
For the moment I would suggest turning your FSB back a little and you should be ok.

Good luck

[RED Hot Machine]

Originally posted by UnseenMenace
I doubt that you have fried your memory, you have probably just hit the FSB limit with your current motherboard/memory configuration. To obtain some of the exceptionally high FSB speeds you will require exceptionally high quality memory and possibly rated higher such as PC2400 mushkin.
For the moment I would suggest turning your FSB back a little and you should be ok.

Good luck

I don't think I was clear earlier, I could get 149+ b4 I upper the ddr voltage. Now it refuses to book into windows above 133!!

[UnseenMenace]

Ohh now thats different, but I am not aware of DDR being fried though, have you tried changing the cas setting to see if that helps with stability and instead of reverting back to the origional voltage try just a little bit higher.

[RED Hot Machine]

Originally posted by UnseenMenace
Ohh now thats different, but I am not aware of DDR being fried though, have you tried changing the cas setting to see if that helps with stability and instead of reverting back to the origional voltage try just a little bit higher.

I'm a bit worried about increasing it above 2.7, I've seen posts suggesting that 2.7 is about the make you should take ddr upto.

TC, Wild_andy_c any ideas ??

[UnseenMenace]

I never meant to suggest going back up to 2.7
i was wondering if a slight increase over what you were running prior to the 2.7 voltage attempt, would allow you to obtain a high FSB again. As I have no idea as to what the voltage was origionally I can not suggest an increase other than to raise it a little bit at a time.

Obviously watch your tempratures, alternatively stay on a 133 mhz FSB and be safe, or look upon this as an excuse to buy PC2400

[Placid]

USER TIPS: For overclocking the 8K7A+, the V DDR jumper should be set to 2.7V instead of the factory default of 2.6V. Under Windows98 in a fully configured system, The Mushkin PC2100 DIMMs were running 100% reliable up to 152 MHz front side bus (304 MHz data rate) frequency. Overclocking of the 8K7A when running more than 128 MB system memory appears to be limited to around 150 MHz depending on the BIOS revision.

USER TIPS: For overclocking the 8K7A+, the V DDR setting in the BIOS should not exceed 2.7V. The 8KHA offers VDD settings of up to 3.2V. !!! VDDR voltages of 2.8 and beyond are almost guaranteed to destroy the memory module!!! Under Windows98 in a fully configured system, The Mushkin PC2100 DIMMs were running 100% reliable up to 152 MHz front side bus (304 MHz data rate) frequency.


http://www.mushkin.com/cgi-bin/Mushkin.filereader?3b96ad5d1c50b2d6273fc0a80102068 7+EN/products/990700

[RED Hot Machine]

thanks for the info placid

[Thelemac]

The fact that your memory is still working tells me that you haven't fried it.

[TRANCER24]

I have my memory running at 2.8 i even tried 2.9 but backed it to 2.8 and that is where it has been for like a month now. And i have had no problems.

[RED Hot Machine]

I've tried using different voltages, fsb settings, and memory settings, and can not get the fsb above 133 stable. I think I must have damaged the memory in some way. I know its not a problem with the cpu as i can overclock it using the mutliplyer jumper settings.


Any one got ideas on how much off, what type of memory, I should replace it with???

currently 256mb of generic pc2100

[Placid]

Crucial 256 is what I am using in the 8k7a.
So far it has gone as high as I have tried to push it 160mhz.
If you look in the cyber deals section you should find a special link you can get 15% off.

[!-=sky=-!]

running 2.8v for my ddr ram (samsung) at 159fsb
on my 8kha

it booted at 169 fsb but crashed right when i see the cloud windows 98 start screen

[Valid]

I pushed my Crucial at 2.7v and one stick died. Just recently. Apparently it was holding me back at 140 though, because as soon as it was removed attempt to boot and benchmark at 145 appears to be successful. I think I got a bad roll of the dice and some lower-than average Crucial RAM. I guess I'll order a stick or two more and try my luck.

[Valid]

Cheap, relatively high quality RAM makes Valid_Target happy. :D