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Ok, removed everything, cleaned it all up. Put AS5 on the cpu, set the heatsink on, pressed down, removed heatsink. Nice grey rectangle. Screwed it all down, fired it up. Same problem. heatsink above CPU is very warm, as are the heatpipes and the finned section. Still locking up. Don't get far enough along to run any temperature monitoring programs.

Grrrr!

Some Q's
should I remove the 3 strips of spacer material that are on the heat sink? (these are outside the core's contact area). I think they serve the same function as the circular spacer dots on desktop cpus.

Perhaps the BIOS is over-volting the CPU?

opened the bottom, propped up the laptop and pointed a 12" desk fan at it... still crashes booting windows. Linux will die occasionally, but generally survives a *lot* longer.

Edit:

Got it to run for a little while. Idling at 43 deg C (mobilemeter) when it puked and did a BSOD.

That is actually a good sign as it shows the heat is tranferring to the heatsink adequately.
I am curious though... is the CPU fan actually working?

The three strips are there to ensure that debris due to the air turbulence does not lodge itself around the core and the adjacent resistors on the substrate. So I would suggest keeping them there.

I don't think so. These BIOS updates are supposed to recognize the CPUs (whether Clawhammer ot Turion) and properly initialize them with the right voltage for the multiplier they start at.

It would be nice to observe what the effective multiplier and voltage the CPU is set at when it BSOD's. Can you have CPUZ (or RMClock monitor that?).

The Turion's (ML) voltage typically varies from .8 Volts (at 4x) to 1.35 Volts (at 12x in case of the ML-42 and ML-44).

Regards;

MS

It's difficult to keep it running long enough to install any software, but I will give it a whirl.

The CPU fan doesn't run all that much, tho i can hear it kick up and down speed wise. Definately a LOT less than with the clawhammer core.

For grins and giggles, I fired up my Linux partition, and let it run one of the OpenGL screensavers to try and stress the system a little, it kept running until the battery ran out - go figure

Not sure what's up with the windows side. Can't be drivers, safe mode pukes pretty quick too.

My current plan of action:
1- Do memtest86 on her. I was getting an occasional error with windows explorer prior to all of this
2- slap in another hard drive and do a vanilla windows install

Is it possible I got a bad chip?

Thanks!
-Ken

CPUZ does not need an installation. You just run it from wherever the executable is stored.

When you operate on battery alone your multiplier (regardless of CPU rev) is typically set to 4 (800Mhz) . It can be throttled explicitly to other multipliers-the same way RMClock does.

Hummm... It is very rare for anyone to get a bad chip. Typically the process quality control that both AMD and Intel use makes "bad chips" almost impossible. While statistically possible I really don't believe you got a bad chip (unless it got damaged since it left the manufacturing facilities ) .

I agree, a fresh Windows Install can probably help. I would also run HD tests(manufaturer specific - typically downloadable) before trying another drive.

Regards;

MS

memtest86 has been chugging along now for close to 2 hours (on AC power), no memory errors, no crashes.

gave windows a shot, BSOD right after logon.

Edit:
Well, trying a different Hard drive and new windows install didn't solve the problem. It's all very strange. We have a 2nd 4750 at work that took the upgrade no sweat. However, I have a new theory, My 4750 is old (like September 2004 old), I know there have been motherboard revisions, its possible that mine just cant do it. Anyway, I want to put the clawhammer back in, and flash down to the 1.04 BIOS and see if that works again.

Can someone send me the 4750 1.04 BIOS?
Thanks!
-Ken

(email: nospamken@badcow.net - remove the nospam)

Ken,
why don't you use Bios 1.05 nstead of 1.04?

My first experiences up to today are similar to yours. Had a few BSOD myself with XP SP2 after I've updated to Eurocom's BIOS 2.04a - same CPU = Clawhammer 3.2, nothing else changed.
My 4750 isn't that old, just over a year, but I'm still running the old keyboard BIOS as discussed before.

After the thírd BIOS update in a row I didn't have BSOD anymore, but Prime95 stopped after the first self test, which wasn't the case before. I went back to Medion BIOS 1.05 for now which was okay with DMA5, and is reliable according Prime95.

My biggest surprise came when I noticed that I have RAM speed now at 200 MHz with the same old 1.05 BIOS as before, which was set to 166 MHz previously, for sure. I have 1 GB with 2 x 512 MB Apacer DIMMs.

Anyway, the 1.05 Eurocom BIOS is still on their website. If anybody wants the Medion 1.05 (=015) BIOS, I can forward this - I had been taken off their website a while ago. The Medion has two more options (WLAN = last state or off at boot AND touchpad on or off at boot) plus a diff. start up screen (showing only AMD64 without further info).

I will prob. do further testing with changes to par. / ser. port settings the next days ...
Do we already have sb running 2.04a on xp sp2 sucessfully with the orig. CPU? If yes, can we have results if it is okay with Prime95 (torture test, 2nd option from top=much heat), please?
Also - CPU voltage used for max speed and RAM config + speed.

Thanks for all the support here - Steve

Edit: my CPUz info attached

UPDATE:
A couple of days and a couple of reboots later I'm back running my mermory at 166 Mhz instead of the 200 shown above (same BIOS) - strange behaviour ...

I don't think it is an issue with SP2. I was getting BSODs with both the Sager and Eurocom 2.04 bios' while trying to do a fresh Windows install. I think Ken maybe on the right track about minor hardware revisions.

Hi there,

I read this thread with much interest--as I've been planning on doing just such an upgrade since news of the Turion chip came out. However, I too have had my 4750 since 2004 (?) and am worried that the upgrade might not work for me. Is there anyone that has succeeded with an older 4750? Also, is there anywhere I can look that would indicate how old mine is? Or revision numbers we can compare?

Thanks!

Abe

p.s. It occurs to me that I might be able to tell how well my 4750 would take the upgrade by flashing to the 2.04a BIOS and then benchmarking it. If it runs the benchmarks stabily then it'll probably take the new processor okay. It seems that those who failed to install the Turion chip successfully had problems with even just the 2.04 BIOS--or am I wrong?

[quote=nullvision]Also, is there anywhere I can look that would indicate how old mine is? Or revision numbers we can compare?
QUOTE]

That is a good question. I have been using mainly software tools that typically read the mainboard revision. However, these tools do not return any info on my D470K machine. So I suspect that this method of determining the revision is of no use to all of us.

The only remaining approach is to actually physically expose the mainboard and locate a revision print (or sticker) on the PCB. Doing so may violate the warranty for some of us as it forces us to open the chassis shell and remove the warranty sticker.

Regards;

MS

I've posted my mainboard info (with the Medion BIOS) from CPUz on the previous post, pic # 3. It shows Rev. 01, but unless sb comes up with anything different, you have to look somewhere else.
Can anybody from Eurocom / Sager confirm where to look for the revision on the board (place of sticker etc.)?

msantos,

I want to do the turion 64 upgrade, but I want to get bios version 2.04a installed before I try and upgrade my processor. Sorry to bug you, but I sent you a PM with my email address and I was hoping to get it off you.

Thanks in advance!

Steve have you done further testing with parallel and serial port settings yet? I haven't had the chance. Cpuz shows my board as rev 1 also.

No prob. Just don't forget to PM me your email address.

Regards;

MS

HOLD THE PHONE!!



This looks like the EXACT same chassis as the 8790. Can anyone verify this?

Yes, I did, today. But no success - in my opinion.
Booting into WinXP Pro was okay with all options (ser. auto/off and/or par. auto/off).
Sometime the BIOS showed PCI device errors, which required a second reboot, a loading of the default BIOS settings and and (automatic) update of the configuration.
Even one time I managed to get an "invalid configuration settings" error from the BIOS just by switching ser. / par. port setting (and I've switched the USB booting option, too).
In ALL cases, my 3.2 AMD DTR CPU was tested with Prime95, torture test, second option from top - and failed in ALL cases after .1 sec.
So in my opinion, this BIOS isn't stable enough to be run on MY mainboard (revision) with MY CPU (and prob.) MY windows config.
RAM was back to 160 MHz, btw.
When time allows, I will try with another HD and a fresh WinXP Pro install again.
In the meantime, back to Medion 015 BIOS.
Just a pic attached showing CPUz info screen with BIOS 2.04a.
Steve