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need help overclocking amd 1075t

post #1 of 14
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Hi, I currently have an AMD 1075t and can't seem to get it past 3.8 GHz. I increase the cpu voltage to hit 3.9, but it just crashed when running prime. I currently have the cpu/nb on auto, and cpu/nb volts on auto. my multiplier is at 15, and my bus speed is 254. on 3.8 its perfectly stable in prime after 12+ hours. I don't understand what I need to change to be able to hit 3.9+. also my cooler is a cm v8.
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post #2 of 14
Quote:
Originally Posted by Baindramage View Post
Hi, I currently have an AMD 1075t and can't seem to get it past 3.8 GHz. I increase the cpu voltage to hit 3.9, but it just crashed when running prime. I currently have the cpu/nb on auto, and cpu/nb volts on auto. my multiplier is at 15, and my bus speed is 254. on 3.8 its perfectly stable in prime after 12+ hours. I don't understand what I need to change to be able to hit 3.9+. also my cooler is a cm v8.
Where is the vcore set for both set ups?

Are you raising the HTT or multiplier to get to 3.9GHz?

You should list where your ram is set also, is it manually entered into bios? Remember more HTT = higher ram freq too.

Might try manually setting NB Freq and CPU/NB Voltage as well. May need CPU/NB Freq of 2600-2800MHz at 3.9GHz, and keep HT Link Speed as close to 2000MHz as possible. Start with CPU/NB Voltage at 1.25-1.3v (1.45 max) but watch your temps as more voltage = more heat!
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post #3 of 14
First, do not leave cpu-nb on auto. Leave cpu-nb voltage at auto and keep your cpu-nb setting around 2000, via its multiplier since the FSB is causing it to go up, Then discover your highest possible OC on your cpu. Most of those boards get around 2600-2800 mhz on cpu-nb like mentioned above but you will have to raise its voltage to around 1.35-1.4 volts would be my guess, but this varies from board to board.
post #4 of 14
Thread Starter 
Quote:
Originally Posted by The Sandman View Post
Where is the vcore set for both set ups?

Are you raising the HTT or multiplier to get to 3.9GHz?

You should list where your ram is set also, is it manually entered into bios? Remember more HTT = higher ram freq too.

Might try manually setting NB Freq and CPU/NB Voltage as well. May need CPU/NB Freq of 2600-2800MHz at 3.9GHz, and keep HT Link Speed as close to 2000MHz as possible. Start with CPU/NB Voltage at 1.25-1.3v (1.45 max) but watch your temps as more voltage = more heat!
I'm raising my HTT to hit 3.9, and my ram is currently at 1355, stock frequency is 1333 for it, so I'm keeping it on the stock 1.5v. I did set my CPU/NB manually, it's at 2531 right now, with a voltage of 1.35, and my HTlink is the same speed. so, should I *lower* my cpu/nb before I raise my htt? I really only kept those settings on auto because it looked like ASUS was handling those alright with a 3.8 GHz OC. Also, I've tried running lower multis like 14, but my ram clocks too high and I don't want to screw with finicky DRAM voltages as I want to keep those as close to stock as possible, but on the divider, my only lower option is 1088 when on 3.8 with a multi of 14. And also, I can boot fine, it's just when I run PRIME95 with an OC of 3.9 GHz I get an error on core 5. but, 3.8 GHz is PERFECTLY stable, as I tested it in PRIME for over 14 hours loading small ffts.
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post #5 of 14
For the love of god turn that HTT down! You're only making things worse by raising it past 2000.

PS: No such thing as perfectly stable until you do each of the options for 24hrs each. Blend is the true test in my opinion as the RAM and the CPU get loaded.
     
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post #6 of 14
Quote:
Originally Posted by Baindramage View Post
I'm raising my HTT to hit 3.9, and my ram is currently at 1355, stock frequency is 1333 for it, so I'm keeping it on the stock 1.5v. I did set my CPU/NB manually, it's at 2531 right now, with a voltage of 1.35, and my HTlink is the same speed. so, should I *lower* my cpu/nb before I raise my htt? I really only kept those settings on auto because it looked like ASUS was handling those alright with a 3.8 GHz OC. Also, I've tried running lower multis like 14, but my ram clocks too high and I don't want to screw with finicky DRAM voltages as I want to keep those as close to stock as possible, but on the divider, my only lower option is 1088 when on 3.8 with a multi of 14. And also, I can boot fine, it's just when I run PRIME95 with an OC of 3.9 GHz I get an error on core 5. but, 3.8 GHz is PERFECTLY stable, as I tested it in PRIME for over 14 hours loading small ffts.
If ram voltage is 1.5v is that the manf rated voltage? If it is make sure it's manually set in bios along with the timing values.

What is your vcore for both attempts (3.8 + 3.9)

Try raising the CPU/NB Freq up to 2600-2800MHz and adjust the CPU/NB Voltage accordingly. At 3.9 it may take that much CPU/NB Freq to make stable.

If only one worker is failing it most is due to not enough CPU/NB Voltage, HT Voltage or maybe even Ram voltage. Max for CPU/NB is 1.45v maybe you need to raise it more in small increments. HT voltage may need to be around 1.3-1.4v that's something you may need to address.

Lower the HT Link Speed to 2000MHz or as close as possible.

Have you tried raising the cpu multiplier instead of raising the HTT to get to 3.9? (245 x 16=3920)

And if you haven't seen this thread, you may find some useful info in this http://www.overclock.net/amd-general...ing-guide.html
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post #7 of 14
Thread Starter 
Quote:
Originally Posted by The Sandman View Post
If ram voltage is 1.5v is that the manf rated voltage? If it is make sure it's manually set in bios along with the timing values.

What is your vcore for both attempts (3.8 + 3.9)

Try raising the CPU/NB Freq up to 2600-2800MHz and adjust the CPU/NB Voltage accordingly. At 3.9 it may take that much CPU/NB Freq to make stable.

If only one worker is failing it most is due to not enough CPU/NB Voltage, HT Voltage or maybe even Ram voltage. Max for CPU/NB is 1.45v maybe you need to raise it more in small increments. HT voltage may need to be around 1.3-1.4v that's something you may need to address.

Lower the HT Link Speed to 2000MHz or as close as possible.

Have you tried raising the cpu multiplier instead of raising the HTT to get to 3.9? (245 x 16=3920)

And if you haven't seen this thread, you may find some useful info in this http://www.overclock.net/amd-general...ing-guide.html
Yes, the ram voltage of 1.5v is the stock manf settings with ram timings on stock 9-9-9-24. And I can't bring the multiplier past 15 since it's not black edition. I'll try and get my cpu/nb to 2700. and my cpu vcore is 1.4375 for 3.8 GHz. That voltage seems perfectly fine for 3.8, as when running PRIME it is stable after 14 hours. When I raise it to 3.9 I bring the voltage to 1.45.

*EDIT* I've put my ht link down to 2033, and my cpu/nb at 2612, with cpu/nb voltage at 1.35 and ht voltage at 1.28, and nb voltage at 1.28.
Edited by Baindramage - 1/17/11 at 11:10am
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post #8 of 14
Thread Starter 
Also, what should I have my offsets set at for Coretemp? +10?
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post #9 of 14
Dont watch coretemps, but socket temps. What are your temperatures under full load? 55c is max and you shouldnt go above it.
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post #10 of 14
Thread Starter 
Quote:
Originally Posted by Devilmaypoop View Post
Dont watch coretemps, but socket temps. What are your temperatures under full load? 55c is max and you shouldnt go above it.
on full load I'm hitting 51c.
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