E8400 upgrade to Q9650; now Windows freezes during boot

alisonnic

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Apr 16, 2010
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Update: I put the E8400 back in, and now all is back to normal.

So what would I have to do to make the Q9650 work in this machine? It's on the list of supported CPU's for this motherboard.

Do I need to update the BIOS? Re-install Windows? Tweak something in the BIOS settings?

Since it did run for a few minutes with the Q9650 before the Windows freezing problem arose, I'm fairly sure I can't return the Q9650. So I'd really like to get it working.

I'll be very grateful for any suggestions.

Thanks!

------- Original Post -------

I've just replaced my E8400 CPU with a Q9650. It booted fine a couple of times after the upgrade, but Windows 10 still said it had an E8400; it didn't recognize the new (used) processor.

I ran 3DMark and that ran fine; it showed a small improvement in performance. More importantly, I think, 3DMark correctly detected and identified the Q9650.

I rebooted after the 3DMark test, intending to run some gaming evaluations, but now Windows 10 stops on the black screen with the slightly angled window, and won't go any further. The hard drive light stops flashing.

I powered off and on and tried to restart. This time Windows said it was preparing a repair, but then it stopped just as before. I've tried numerous times but can't get past the angled window screen.

The BIOS doesn't seem to have any identification of the type of processor or number of cores.

What do I do now? I could try to swap the E8400 back in and hope that boots, but I hate to give up on the Q9650, which should have much better performance.

Incidentally, in 3DMark's Cloud Gate test, the Q9650 showed only marginal improvement over the E8400. This was a big surprise, because I have another machine with a Q9650 and 8GB of DDR2 800, and it hugely outperformed this machine with the E8400, especially in the physics test. That other machine has a GTX 750 1GB, while this newly upgraded system has a GTX 560ti 2GB. I expected a big improvement from the Q9650 upgrade, getting it close to the other machine with the Q9650, but even during the short time it was running, it didn't seem to deliver.

Anyway, any suggestions are welcome. I'd at least want to get this machine running again, even if I have to ditch the Q9650, but I'm kind of afraid to touch it now. LOL!

Motherboard:
GIGABYTE GA-P35-DS3L LGA 775 Intel P35
http://www.gigabyte.com/products/product-page.aspx?pid=2629#sp

Memory:
Komputerbay 8GB (4x2GB) DDR2 800 (new as of a few days ago)

Video card:
EVGA GTX 560Ti 2 GB

OS:
Free "upgrade" from Windows 7 Home Premium to Windows 10.

Thanks for any advice you can give!
 
Solution
On supported CPU lists the motherboard manufacturer tends to also list the BIOS required for it. One consideration:Have you cross checked the required BIOS version for the new CPU to the version you have? From what I can see on the link you provided the Q9650 requires the F9 version (the E8400 requires F8).

As for benchmarking... both CPUs run at the same clockspeed. The E8400 is a dual core and the Q9650 a quad core. Realistically you won't see a great deal of difference in tasks which use a single core, but should see a difference in multi core tasks.

Some recommend reinstalling Windows with an upgrade of CPU (and motherboard) to avoid issues. This may be something you want to consider.

On supported CPU lists the motherboard manufacturer tends to also list the BIOS required for it. One consideration:Have you cross checked the required BIOS version for the new CPU to the version you have? From what I can see on the link you provided the Q9650 requires the F9 version (the E8400 requires F8).

As for benchmarking... both CPUs run at the same clockspeed. The E8400 is a dual core and the Q9650 a quad core. Realistically you won't see a great deal of difference in tasks which use a single core, but should see a difference in multi core tasks.

Some recommend reinstalling Windows with an upgrade of CPU (and motherboard) to avoid issues. This may be something you want to consider.

 
Solution

alisonnic

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Apr 16, 2010
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You're right about the Q9650 requiring a newer BIOS version. <slaps head> I missed that. Thanks so much for pointing it out!

I haven't checked the version of my BIOS yet, but I won't be surprised if I have the F8 version. That machine was built in March 2009, and the F9 BIOS was not released until June 2009. I've downloaded the F9 version and will install that as soon as I can find the time - and courage!

I hope this will allow me to avoid re-installing Win10. I see that as a last resort, but I'll do it if necessary.

Also, you make a good point about single core vs multi-core tasks. I've been assuming that 3DMark uses multiple cores if they are available, but I could be wrong.

A possible explanation for the other machine with a Q9650 getting so much higher scores could be that on that machine, the GTX 750 is doing some of the physics calculations. I don't know for sure what functionality was added at that generation of nVidia GPU, but if this is the case, I would expect the higher scores.

I will post here once I've tried the BIOS update. Hope it works!